23510 HVAC Blower Motor Circuit May Overheat – 2016-2020 International & 2018 IC Bus

SEOCONTENT-START

Navistar Recall 23510 Updated Chronology of Events 06/01/2013

• 01/12/2022 Navistar Product Integrity Group ( PIG ) inspects a vehicle that experienced a fire that consumed most of the passenger side fuse panel and HVAC area. Due to extensive damage, cause could not be determined. Focus was placed on HVAC blower motor as a potential cause at the time.
• 03/03/2022 Navistar PIG receives communication of a second vehicle at same customer with an HVAC blower motor fuse that melted the PDC at the blower motor load circuit.
• 04/08/2022 thru 06/13/2022 Navistar Engineering, Navistar Field Service and dealer develop a repair plan for this second vehicle that was reported. This included replacing the damaged section for the PDM, installing new terminals for terminals that showed sign of being damaged and taking an amp draw on the blower motor and report the results to Navistar Engineering. At this time, this was considered an isolated event due to the single customer application.
• 06/14/2022 Navistar PIG is notified by a dealer of a third vehicle from same customer.
• 06/18/2022 Navistar completes warranty review and found 65 claims on 12 years of production received between 07/02/2015 thru 08/30/2021 for the blower motor load side wire terminal in the PDM. 30 of the claims mentioned melting at the A4 cavity for the blower motor and 35 claims stated that the terminal had a spread terminal. No thermal events were found. Focus was now placed on understanding cause of spread terminals.
• 07/27/2022 Navistar Engineering and Navistar Field Service performs field inspections of vehicles where this single customer s third vehicle was located. This third vehicle had a small thermal event that melted the PDM at the blower motor circuit and caused some damage to the Instrument Panel above the PDM. Two additional customer vehicles were inspected at this time, including extensive testing measuring voltage and amperage of the blower motor and measuring temperature of the terminal in question for at least one hour. No performance anomalies were found.
• 08/01/2022 Navistar Engineering receives the PDM blower motor fuse block from the third vehicle from the customer for review.
• 09/26/2022 Navistar Compliance receives communication from the field of two additional vehicles from the same customer that had PDMs with thermal damage at the blower motor fuse block area. All thermal events as of this date were with one customer.
• 09/26/2022 Navistar Compliance, Engineering and Field support meet to review data collected from field investigations.
• 08/01/2022 thru 11/11/2022 Navistar Engineering examines and analyzes the PDM from the third vehicle and arranges to send this PDM to a third-party for analysis.
• 02/01/2023 Navistar receives CT scan results from the third-party for the third vehicle s PDM that determined the overheated terminal was of low-current thin material and not capable of meeting the continuous electrical current load requirement of the blower motor load side circuit.
• 02/01/2023 Navistar Field Service reports that the customer s trucks have been repaired and parts are available for analysis. Navistar Engineering requests the PDM blower motor fuse block area parts from the 4th and 5th vehicles that had a thermal event be returned to Navistar for analysis.
• 02/23/2023 Navistar Engineering investigates to determine if any deviations were written allowing a different terminal to be used and found that Navistar did not authorize any deviations.
• 02/28/2023 Navistar Engineering sends the two additional PDM blower motor fuse blocks from the 4th and 5th vehicles that had a thermal event to third-party for CT Scan analysis.
• 02/28/2023 Navistar completes a second warranty review and found 3 additional warranty claims for a total of 68 claims received between 07/02/2015 thru 02/03/2023 for the blower motor load side wire terminal in the PDM. 30 of the claims mentioned melting at the A4 cavity for the blower motor and 38 claims stated that the terminal had a spread terminal. No thermal events were found.
• 03/01/2023 Navistar Engineering and Compliance review engineering specifications for its terminal ratings.
• 03/06/2023 Navistar Engineering and Compliance meet to share the results of the CT scan analyses performed on the three PDM blower motor fuse blocks that had a thermal event. The team continues to work with the supplier of the assembled PDM to determine if they were built with the incorrect terminal.
• 03/08/2023 Navistar Engineering requests the Supplier to provide data for terminal usage on PN 3599501C1.
• 03/10/2023 Navistar Engineering investigates vehicles at the Chicago Used Truck Center and finds 5 out of 19 potential suspect trucks to have low current terminal (1 with evidence of melting).
• 03/14/2023 Navistar Engineering and supplier meet to review initial data of terminal usage and requests that the Supplier investigate how the incorrect terminal was installed.
• 03/15/2023 through 3/17/2023 Navistar Supplier Quality visits supplier facilities and reviews investigation results, blower motor circuit details, containment, and control practices.
• 03/17/2023 Navistar Supplier Quality performs on-site review at supplier of Supplier s process and controls for wire terminal selection.
• 03/17/2023 Supplier provides preliminary potential suspect population of PDMs that may have been assembled with the low current terminal.
• 3/24/2023 Supplier provides complete traceability of vehicles that received PDMs with low current terminals in the HVAC fuse block.
• 03/30/2023 Navistar finalizes the suspect population and declares a Safety Recall.
• 03/31/2023 Navistar Compliance reviews the suspect population and identifies certain vehicles verified to be built with the incorrect terminal and communicates the finding to Navistar Engineering.
• 04/03/2023 Navistar Engineering reviews additional PDM designs and identify two additional PDM designs that use a different cavity for the blower motor circuit.
• 04/12/2023 Navistar Supplier Quality meets on-site with supplier to review supplier s investigation data to identify other potential designs that may use the incorrect terminal.
• 04/18/2023 Navistar Engineering, Supplier Quality and the supplier meet to review the new data. The supplier requests additional parts be returned for continued investigation.
• 04/19/2023 Navistar collects three PDM components from three vehicles and sends them to the supplier for evaluation. A fourth PDM with damage was found on 04/21/2023 and was shipped to the supplier for evaluation.
• 04/21/2023 Navistar Engineering and supplier meet at Navistar s Chicago used truck center to inspect additional vehicles that were not previously inspected. Of 20 vehicles inspected, six, not in the original suspect population, were found to have the low current terminal and it was verified that one model does have the blower motor circuit in different cavities.
• 04/25/2023 Navistar Engineering, Supplier Quality and the supplier meet to review the findings from the 04/21/2023 inspections and determined that all affected vehicles were not included in the suspect population. It was also confirmed that for certain models, the blower motor circuit breaker can be in different cavities within the PDM.
• 04/27/2023 Navistar receives a PDM found on 04/18/2023 with damage. Inspection verified damage to the blower motor circuit cavity.
• 04/28/2023 through 05/09/2023 Supplier reviews their database to refine the suspect population with the additional blower motor cavities found in the onsite inspections.
• 05/10/2023 Navistar reviews the supplier s production data and determines the data was missing two of the vehicles found with damage from the onsite inspections performed on 04/21/2023.
• 05/10/2023 through 05/18/2023 Supplier reviews Build of Material (BOM) for suspect build population supplied to Navistar and determines the list was correct. The supplier reviews the database of the machine used to make the harness and were able to identify additional manufacturing production data that was missed using the BOM search and sends updated list to Navistar.
• 05/19/2023 Navistar reviews the third manufacturing production data from the supplier and finds discrepancies between the three lists.
• 05/23/2023 After further analysis by the supplier, Navistar receives a fourth iteration of manufacturing production data from the supplier.
• 05/24/2023 Navistar updates the final suspect population.
• 05/25/2023 Navistar Compliance Committee approves an adjustment to the suspect population for Navistar recall 23510 (23V248).

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Navistar, Inc.
2701 Navistar Drive
Lisle, IL 60532 USA
navistar.com
IMPORTANT SAFETY RECALL 23510
NHTSA RECALL NO. 23V-248
This notice applies to your vehicle identified on the
enclosed card.
JUNE 2023
Dear INTERNATIONAL® Customer,
This notice is sent to you in accordance with the requirements of
the National Traffic and Motor Vehicle Safety Act.
Navistar has decided that a defect which relates to motor vehicle
safety exists in certain 2017 thru 2020 DuraStar and WorkStar®
model trucks built 01/19/2016 thru 12/20/2019, 2016 and 2017
TranStar® model trucks built 12/14/2015 thru 04/12/2016, 2017
thru 2019 ProStar® model trucks built 01/13/2016 thru
03/02/2018, and 2018 and 2019 HC commercial buses built on
08/07/2017 thru 10/25/2018.
REASON FOR THIS RECALL
The Heating, Ventilating, and Air Conditioning (HVAC) system
blower motor circuit may have been built with a wire terminal that
does not meet the electrical current requirements for the blower
motor circuit. This can cause overheating that may melt the
plastic material of the fuse block for the HVAC circuit and
subsequent damage of the surrounding area of the Power
Distribution Module (PDM) and/or dash panels.
RISK TO MOTOR VEHICLE SAFETY
A wire terminal that overheats may increase the risk of a fire that
could result in property damage to the vehicle and/or personal
injury or death to the vehicle operator.
Publ.c
lX’aJ~o Cb§@
JUN O 5 2023
By: ~-~~f.~~NcL
······· A NAVISTAR COMPANY
IMPORT ANTE CAMPANA DE REVISl6N DE
SEGURIDAD 23510
CAMPAF4A DE REVISION REQUERIDA POR NHTSA N. 0
23V-248
Este aviso se aplica a su vehiculo, identlficado en la
tarjeta adjunta.
JUNIO 2023
Estimado cliente de INTERNATIONAL®,
Esta notificaci6n es enviada a usted de acuerdo con los
requisitos de la Ley Nacional de Transito y Seguridad de
Vehiculos de Motor.
Navistar ha decidido que existe un defecto relacionado con la
seguridad de los vehiculos de motor en ciertos camiones
modelo 2017 hasta 2020 DuraStar y WorkStar® fabricados del
19/01/2016 al 20/12/2019, camiones modelo 2016 y 2017
TranStar® fabricados del 14/12/2015 al 12/04/2016, camiones
modelo 2017 hasta 2019 ProStar® fabricados del 13/01/2016
al 02/03/2018, y modelo 2018 y 2019 autobuses comerciales
HC fabricados del 08/07/2017 al 10/25/2018.
MOT/VO PARA ESTA REVIS/6N
El circuito del motor del ventilador del sistema de calefacci6n,
ventilaci6n y aire acondicionado (HVAC) puede haber sido
construido con un terminal de cable que no cumple los
requisitos de corriente electrica para el circuito del motor del
ventilador. Esto puede provocar un sobrecalentamiento que
puede fundir el material plastico del bloque de fusibles para el
circuito HVAC y el consiguiente dario del area circundante del
modulo de distribuci6n de energia (PDM) y/o las paneles del
tablero.
RIESGO PARA LA SEGUR/DAD DE VEHICULOS DE
MOTOR
Un terminal de cable que se sobrecaliente puede aumentar el
riesgo de que se produzca un incendio que podria causar
dafios materiales al vehiculo y/o lesiones personales o la
muerte al operador del vehiculo.
DEFECT REMEDY
The remedy will involve replacing the blower motor wiring
terminal with correct terminal pigtail that meets the current load
requirement and au fuse blocks and/or dash panels found with
thermal damage. Dealers have parts and instructions to repair
your vehicle. The repair will be performed free of charge and
take approximately 45 minutes to 1 hour and 45 minutes to
complete.
ACTIONS YOU SHOULD TAKE
Navistar’s records indicate that you own a vehicle involved in this
campaign. The vehicle is identified on the enclosed card.
If you own this vehicle, please schedule an appointment with
any International® dealer to have your vehicle repaired. You can
find your nearest dealer by using the dealer locator at
https://www.internationa1trucks.com/dea1er-locator or by caaing
1-800-448-7825.
If you have already paid for repairs prior to this notice that
corrected the defect, you may be eligible for reimbursement of
certain repair expenses if they occurred 04/06/2022 thru
06115/2023. Present your original repair paperwork and
proof of payment to any IC Bus dealer and your eligibility will
be reviewed. You may also submit a claim using the enclosed
Request for Reimbursement card.
If you are the lessor of this vehicle, please forward a copy of
this notice to the lessee as soon as possible.
If you do not own this vehicle, please fill out and return mail
the enclosed card so that you wlll not be contacted again about
this campaign.
IF YOU NEED FURTHER ASSISTANCE
If you beUeve that Navistar has failed to remedy the defect
without charge or within a reasonable time, please follow the
procedure described in the Owner Assistance Guide section in
your Owner’s Manual or can toll free 1-800-448-7825.
You may also submit a complaint to the Administrator, National
Highway Traffic Safety Administration, 1200 New Jersey Ave,
P’ub le
ARREGLO DE DEFECTOS
La soluci6n consistira en sustituir el terminal del cableado del
motor del ventilador par un terminal correcto que cumpla los
requisites de carga de corriente y todos los bloques de
fusibles y/o paneles de tablero que presenten darios termicos.
Los concesionarios tienen las piezas y las instrucciones para
reparar su vehiculo. La reparaci6n se realizara de forma
gratulta y tardara aproximadamente de 45 minutos a 1 hora y
45 minutos en comptetarse.
ACCIONES QUE USTED DEBE TOMAR
Los registros de Navistar indican que usted es duerio de un
vehiculo involucrado en esta camparia. El vehiculo se
identifica en la tarjeta adjunta.
Si usted es dueno de este vehiculo, por favor, haga una cita
con cualquler distribuidor de International® para que reparen
su vehicu1o. Puede encontrar a su distribuidor mas cercano
mediante el localizador de distribuidores en
https:/fwww.internationaltrucks.com/dealer-locator o llamando
al telefono 1-800-448-7825.
Si ya ha pagado las reparaciones anteriores a esta
notificaci6n que corrigieron el defecto, es posible que
cumpla los requisltos para optar por un reembolso de
determinados gastos de reparaci6n si se produjeron del
06/04/2022 al 06/15/2023. Presente la documentaci6n
original de la reparaci6n y el justificante de pago en
cualquier distribuidor de IC Bus y se revisara si cumple los
requisltos. Tambien puede presentar una reclamaci6n
utifizando la tarjeta de solicitud de reembolso adjunta.
Si usted es el arrendador de este vehiculo, favor de envi,ar
una copfa de este avlso al arrendatario dentro de los
siguientes diez dfas, para cumplir con las regulaciones
federates.
Si usted no es duelio de este vehiculo, por favor Ilene y
devuelva por correo la tarjeta adjunta a fin de que no
volvamos a ponemos en contacto con usted de nuevo acerca
de esta camparia.
SI USTED NECESITA MAS AYUDA
Si usted cree que Navistar no ha subsanado el defecto sin
cargo o dentro de un plazo razonable, por favor, siga el
procedimiento descrito en la secci6n Guia de Asistencia
Propietario en el Manual del Propietario o al numero gratuito
1-800-448-7825 lfamada.
Tambien puede presentar una queja al Administrador,
National Highway Traffic Safety Administration, 1200 New
SE, Washington, DC 20590; or call the toll free Vehicle Safety
Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to
http://www. saf ercar.gov.
Navistar requests your prompt attention and patience regarding
the correction of this defect and apologizes for any
inconvenience this may cause you.
Navistar, Inc.
Public
Jersey Ave, SE, Washington, DC 20590; o llamar a la linea
gratuita Vehicle Safety Hotline al 1-888-327-4236 (TTY: 1-800-
424-9153); o ir a http://www.saJercar.gov.
Navistar solicita su pronta atenci6n y su paciencia en cuanto a
la correcci6n de este defecto y se disculpa par cualquler
inconveniente que esto pueda causarle.
Navistar, Inc.

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Navistar, Inc.
2701 Navistar Drive
Lisle, IL 60532 USA
navistar.com
IMPORTANT SAFETY RECALL 23510
NHTSA RECALL NO. 23V-248
This notice applies to your vehicle identified on the
enclosed card.
Dear INTERNATIONAL* Customer,
This notice is sent to you in accordance with the requirements of
the National T raffle and Motor Vehtcle Safety Act.
Navistar has decided that a defect which relates to motor vehicle
safety exists in certain 2017 thru 2020 DuraStar and WorkStar®
model trucks built 01/19/2016 thru 12/20/2019, 2016 and 2017
TranStar® model trucks built 12/14/2015 thru 04/12/2016, 2017
thru 2019 ProStar® model trucks built 01/13/2016 thru
03/02/2018, 2018 and 2019 LoneStar series trucks built
07/13/2017 thru 02/08/2018, and 2018 and 2019 HC commercial
buses built on 08/07/2017 thru 10/25/2018.
REASON FOR THIS RECALL
The Heating, Ventilating, and Air Conditioning (HVAC) system
blower motor circuit may have been built with a wire terminal that
does not meet the electrical current requirements for the blower
motor circuit. This can cause overheating that may melt the
plastic material of the fuse block for the HVAC circuit and
subsequent damage of the surrounding area of the Power
Distribution Module (PDM) and/or dash panels.
RISK TO MOTOR VEHICLE SAFETY
A wire terminal that overheats may increase the risk of a fire that
could result in property damage to the vehicle and/or personal
injury or death to the vehicle operator.
DEFECT REMEDY
The remedy will involve replacing the blower motor wiring
terminal with correct terminal pigtail that meets the current load
requirement and all fuse blocks and/or dash panels found with
thermal damage. Dealers have parts and instructions to repair
your vehicle. The repair will be performed free of charge and take
approximately 45 minutes to 1 hour and 45 minutes to complete.
ACTIONS YOU SHOULD TAKE
If you own this vehicle, please schedule an appointment with
any International® dealer to have your vehicle repaired. You can
find your nearest dealer by using the dealer locator at
~&□ ~[§[ID
JUN O 5 2023
By .• ••C•Q••#••J•’•1•,•.~••·•,4••A•.•lc••£• .
A NAVISTAR COMPANY
JUNE 2023
httos://www.internationaltrucks.com/dealer-locator or by calling 1-
800-448-7825.
If you have already paid for repairs prior to this notice that
corrected the defect, you may be eligible for reimbursement of
certain repair expenses if they occurred 04/06/2022 thru
06/15/2023. Present your original repair paperwork and proof
of payment to any INTERNATIONAL® dealer and your eligibility
will be reviewed. You may also submit a claim using the enclosed
Request for Reimbursement card.
If you are the lessor of this vehicle, please forward a copy of
this notice to the lessee within ten days to comply with federal
regulations.
If you do not own this vehicle, please fill out and return mail
the enclosed card so that you will not be contacted again about
this recall.
IF YOU NEED FURTHER ASSISTANCE
If you believe that Navistar has failed to remedy the defect
without charge or within a reasonable time, please follow the
procedure described in the Owner Assistance Guide section in
your Owner’s Manual or call toll free 1-800-448-7825.
You may also submit a complaint to the Administrator, National
Highway Traffic Safety Administration, 1200 New Jersey Ave,
SE, Washington, DC 20590; or call the toll free Vehicle Safety
Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to
http://www.safercar.gov.
Navistar requests your prompt attention and patience regarding
the correction of this defect and apologizes for any
inconvenience this may cause you.
Navistar, Inc.

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Navistar, Inc. APR 12, 2023 NHTSA Recall No. : 23V-248 Manufacturer Recall No. : 23510 Manufacturer Information :
Manufacturer Name : Navistar, Inc.
Address : 2701 Navistar Drive
Lisle IL 60532 Company phone : 331-332-1590
Population :
Number of potentially involved : 44,887 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2016-2020 International DuraStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 32,692 DuraStar model trucks in the suspect population Production Dates : SEP 03, 2015 – DEC 20, 2019
VIN Range 1 : Begin : NR End : NR ntial Part 573 Safety Recall Report 23V-248 Page 2 Vehicle 2 : 2016-2020 International WorkStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 12,028 WorkStar model trucks in the suspect population.
Production Dates : SEP 02, 2015 – NOV 28, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2017-2018 International TranStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 157 TranStar model trucks in the suspect population.
Production Dates : JAN 19, 2016 – JUL 06, 2017
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 3 Vehicle 4 : 2018-2018 IC Bus HC Commercial bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There is one HC commercial bus in the suspect population.
Production Dates : JUN 29, 2017 – JUN 29, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2020-2020 International HV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 3 HV series trucks in the suspect population.
Production Dates : FEB 08, 2019 – FEB 08, 2019
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 4 Vehicle 6 : 2020-2020 International MV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 2 MV series trucks in the suspect population.
Production Dates : AUG 14, 2019 – OCT 09, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2018-2018 International ProStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 4 ProStar model trucks in the suspect population.
Production Dates : MAY 03, 2017 – AUG 10, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The HVAC blower motor circuit on the load side of the circuit breaker in the PDM may have been assembled with a wire terminal that does not meet the continuous electrical current load requirement. This can cause over-heating that may melt the plastic material of the terminal block for the HVAC circuit and cause subsequent thermal damage of the surrounding area of the PDM and or dash panels. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 5 FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A wiring terminal that does not meet the continuous electrical current load requirement of the HVAC blower motor circuit can cause a fire that may result in property damage to the vehicle and/or personal injury or death to the vehicle operator.
Description of the Cause : The supplier did not use the Navistar specified wire terminal for the HVAC blower motor load circuit. A terminal which fit physically into the terminal block but could not meet the continuous electrical current load requirement was substituted to a different part number. In the supplier’s system it indicated that both part numbers could be used as they were the same style and for the same gauge wire. The supplier did not take into account the continuous amperage load capability required of the HVAC blower motor circuit. Identification of Any Warning
that can Occur : None. Involved Components : Component Name 1 : Wire terminal Component Description : Terminal, Electrical, Cable Component Part Number : 3536590C1 Supplier Identification : Component Manufacturer
Name : MSSL Wiring System Inc. (MSSL) Address : Prolongación Isidro
Lopez Zertuche # 1950 Colonia Capellania Ramos Arizpe Coahuila, CP Foreign States 25900
Country : Mexico Chronology :
The chronology exceeds the 2000-character limit and will be submitted as a miscellaneous document. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248
Page 6
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : • The remedy will involve replacing the HVAC blower motor load
circuit wiring terminal with correct terminal pigtail that meets the continuous electrical current load requirement and all fuse blocks found with thermal damage.
• Navistar’s plan for reimbursement of pre-notification remedies, on file with NHTSA and dated 05/06/2022, applies and reimbursement instructions will be included in the customer notification. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy wire terminal meets the continuous electrical current load requirement where the recalled wire terminal does not.
01/06/2020 – Navistar begins use of a redesigned PDM cab harness assembly. Recall Schedule :
Description of Recall Schedule : It is estimated that the Customer and Dealer notification letters will be
mailed by 06/05/2023.
Planned Dealer Notification Date : JUN 05, 2023 – JUN 05, 2023
Planned Owner Notification Date : JUN 05, 2023 – JUN 05, 2023
* NR – Not Reported

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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Navistar, Inc. APR 06, 2023 NHTSA Recall No. : 23V-248 Manufacturer Recall No. : 23510 Manufacturer Information :
Manufacturer Name : Navistar, Inc.
Address : 2701 Navistar Drive
Lisle IL 60532 Company phone : 331-332-1590
Population :
Number of potentially involved : 44,887 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2016-2020 International DuraStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 32,692 DuraStar model trucks in the suspect population Production Dates : SEP 03, 2015 – DEC 20, 2019
VIN Range 1 : Begin : NR End : NR ntial Part 573 Safety Recall Report 23V-248 Page 2 Vehicle 2 : 2016-2020 International WorkStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 12,028 WorkStar model trucks in the suspect population.
Production Dates : SEP 02, 2015 – NOV 28, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2017-2018 International TranStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 157 TranStar model trucks in the suspect population.
Production Dates : JAN 19, 2016 – JUL 06, 2017
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 3 Vehicle 4 : 2018-2018 International ProStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 4 ProStar model trucks in the suspect population.
Production Dates : MAY 03, 2017 – AUG 10, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2020-2020 International HV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 3 HV series trucks in the suspect population.
Production Dates : FEB 08, 2019 – FEB 08, 2019
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 4 Vehicle 6 : 2020-2020 International MV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 2 MV series trucks in the suspect population.
Production Dates : AUG 14, 2019 – OCT 09, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2018-2018 IC Bus HC Commercial bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There is one HC commercial bus in the suspect population.
Production Dates : JUN 29, 2017 – JUN 29, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The HVAC blower motor circuit on the load side of the circuit breaker in the PDM may have been assembled with a wire terminal that does not meet the continuous electrical current load requirement. This can cause over-heating that may melt the plastic material of the terminal block for the HVAC circuit and cause subsequent thermal damage of the surrounding area of the PDM and or dash panels. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 5 FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A wiring terminal that does not meet the continuous electrical current load requirement of the HVAC blower motor circuit can cause a thermal event that may result in property damage to the vehicle and/or personal injury or death to the vehicle operator.
Description of the Cause : The supplier did not use the Navistar specified wire terminal for the HVAC blower motor load circuit. A terminal which fit physically into the terminal block but could not meet the continuous electrical current load requirement was substituted to a different part number. In the supplier’s system it indicated that both part numbers could be used as they were the same style and for the same gauge wire. The supplier did not take into account the continuous amperage load capability required of the HVAC blower motor circuit. Identification of Any Warning
that can Occur : None. Involved Components : Component Name 1 : Wire terminal Component Description : Terminal, Electrical, Cable Component Part Number : 3536590C1 Supplier Identification : Component Manufacturer
Name : MSSL Wiring System Inc. (MSSL) Address : Prolongación Isidro
Lopez Zertuche # 1950 Colonia Capellania Ramos Arizpe Coahuila, CP Foreign States 25900
Country : Mexico Chronology :
The chronology exceeds the 2000-character limit and will be submitted as a miscellaneous document. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248
Page 6
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : • The remedy will involve replacing the HVAC blower motor load
circuit wiring terminal with correct terminal pigtail that meets the continuous electrical current load requirement and all fuse blocks found with thermal damage.
• Navistar’s plan for reimbursement of pre-notification remedies, on file with NHTSA and dated 05/06/2022, applies and reimbursement instructions will be included in the customer notification. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy wire terminal meets the continuous electrical current load requirement where the recalled wire terminal does not.
01/06/2020 – Navistar begins use of a redesigned PDM cab harness assembly. Recall Schedule :
Description of Recall Schedule : It is estimated that the Customer and Dealer notification letters will be
mailed by 06/05/2023.
Planned Dealer Notification Date : JUN 05, 2023 – JUN 05, 2023
Planned Owner Notification Date : JUN 05, 2023 – JUN 05, 2023
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Navistar, Inc. JUN 02, 2023 NHTSA Recall No. : 23V-248 Manufacturer Recall No. : 23510 Manufacturer Information :
Manufacturer Name : Navistar, Inc.
Address : 2701 Navistar Drive
Lisle IL 60532 Company phone : 331-332-1590
Population :
Number of potentially involved : 42,054 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2017-2019 International ProStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 2,436 ProStar model trucks in the suspect population.
Production Dates : JAN 13, 2016 – MAR 02, 2018
VIN Range 1 : Begin : NR End : NR ntial Part 573 Safety Recall Report 23V-248 Page 2 Vehicle 2 : 2017-2020 International DuraStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 30,515 DuraStar model trucks in the suspect population Production Dates : NOV 28, 2016 – DEC 20, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2017-2020 International WorkStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 8,512 WorkStar model trucks in the suspect population Production Dates : JAN 19, 2016 – DEC 04, 2019
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 3 Vehicle 4 : 2016-2017 International TranStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 263 TranStar model trucks in the suspect population.
Production Dates : DEC 14, 2015 – APR 12, 2016
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2018-2019 IC Bus HC Commercial Bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 134 HC Commercial buses in the suspect population.
Production Dates : AUG 07, 2017 – OCT 25, 2018
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 4 Vehicle 6 : 2017-2019 International LoneStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Module (PDM) (R1) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit. • The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 194 LoneStar trucks in the suspect population Production Dates : JAN 13, 2016 – FEB 08, 2018
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The HVAC blower motor circuit on the load side of the circuit breaker in the PDM may have been assembled with a wire terminal that does not meet the continuous electrical current load requirement. This can cause over-heating that may melt the plastic material of the terminal block for the HVAC circuit and cause subsequent thermal damage of the surrounding area of the PDM and or dash panels.
FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A wiring terminal that does not meet the continuous electrical current load requirement of the HVAC blower motor circuit can cause a fire that may result in property damage to the vehicle and/or personal injury or death to the vehicle operator.
Description of the Cause : The supplier did not use the Navistar specified wire terminal for the HVAC blower motor load circuit. A terminal which fit physically into the terminal block but could not meet the continuous electrical current load requirement was substituted to a different part number. In the supplier’s system it indicated that both part numbers could be used as they were the same style and for the same gauge wire. The supplier did not take into account the continuous amperage load capability required of the HVAC blower motor circuit. Identification of Any Warning
that can Occur : None. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 5 Involved Components : Component Name 1 : Wire terminal Component Description : Terminal, Electrical, Cable Component Part Number : 3536590C1 Supplier Identification : Component Manufacturer
Name : MSSL Wiring System Inc. (MSSL) Address : Prolongación Isidro
Lopez Zertuche # 1950 Colonia Capellania Ramos Arizpe Coahuila, CP Foreign States 25900
Country : Mexico Chronology :
The chronology exceeds the 2000-character limit and will be submitted as a miscellaneous document. Description of Remedy :
Description of Remedy Program : • The remedy will involve replacing the HVAC blower motor load
circuit wiring terminal with correct terminal pigtail that meets the continuous electrical current load requirement and all fuse blocks found with thermal damage.
• Navistar’s plan for reimbursement of pre-notification remedies, on file with NHTSA and dated 05/06/2022, applies and reimbursement instructions will be included in the customer notification. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy wire terminal meets the continuous electrical current load requirement where the recalled wire terminal does not.
01/06/2020 – Navistar begins use of a redesigned PDM cab harness assembly. Recall Schedule :
Description of Recall Schedule : It is estimated that the Customer and Dealer notification letters will be
mailed by 06/05/2023.
Planned Dealer Notification Date : JUN 05, 2023 – JUN 05, 2023
The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248
Page 6
The information contained in this report was submitted pursuant to 49 CFR §573 Planned Owner Notification Date : JUN 05, 2023 – JUN 05, 2023
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Navistar, Inc. APR 06, 2023 NHTSA Recall No. : 23V-248 Manufacturer Recall No. : 23510 Manufacturer Information :
Manufacturer Name : Navistar, Inc.
Address : 2701 Navistar Drive
Lisle IL 60532 Company phone : 331-332-1590
Population :
Number of potentially involved : 44,887 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2016-2020 International DuraStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 32,692 DuraStar model trucks in the suspect population Production Dates : SEP 03, 2015 – DEC 20, 2019
VIN Range 1 : Begin : NR End : NR ntial Part 573 Safety Recall Report 23V-248 Page 2 Vehicle 2 : 2016-2020 International WorkStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 12,028 WorkStar model trucks in the suspect population.
Production Dates : SEP 02, 2015 – NOV 28, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2017-2018 International TranStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 157 TranStar model trucks in the suspect population.
Production Dates : JAN 19, 2016 – JUL 06, 2017
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 3 Vehicle 4 : 2018-2018 International ProStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 4 ProStar model trucks in the suspect population.
Production Dates : MAY 03, 2017 – AUG 10, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2020-2020 International HV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 3 HV series trucks in the suspect population.
Production Dates : FEB 08, 2019 – FEB 08, 2019
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 4 Vehicle 6 : 2020-2020 International MV
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 2 MV series trucks in the suspect population.
Production Dates : AUG 14, 2019 – OCT 09, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2018-2018 IC Bus HC Commercial bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There is one HC commercial bus in the suspect population.
Production Dates : JUN 29, 2017 – JUN 29, 2017
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The HVAC blower motor circuit on the load side of the circuit breaker in the PDM may have been assembled with a wire terminal that does not meet the continuous electrical current load requirement. This can cause over-heating that may melt the plastic material of the terminal block for the HVAC circuit and cause subsequent thermal damage of the surrounding area of the PDM and or dash panels. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 5 FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A wiring terminal that does not meet the continuous electrical current load requirement of the HVAC blower motor circuit can cause a thermal event that may result in property damage to the vehicle and/or personal injury or death to the vehicle operator.
Description of the Cause : The supplier did not use the Navistar specified wire terminal for the HVAC blower motor load circuit. A terminal which fit physically into the terminal block but could not meet the continuous electrical current load requirement was substituted to a different part number. In the supplier’s system it indicated that both part numbers could be used as they were the same style and for the same gauge wire. The supplier did not take into account the continuous amperage load capability required of the HVAC blower motor circuit. Identification of Any Warning
that can Occur : None. Involved Components : Component Name 1 : Wire terminal Component Description : Terminal, Electrical, Cable Component Part Number : 3536590C1 Supplier Identification : Component Manufacturer
Name : MSSL Wiring System Inc. (MSSL) Address : Prolongación Isidro
Lopez Zertuche # 1950 Colonia Capellania Ramos Arizpe Coahuila, CP Foreign States 25900
Country : Mexico Chronology :
The chronology exceeds the 2000-character limit and will be submitted as a miscellaneous document. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248
Page 6
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : • The remedy will involve replacing the HVAC blower motor load
circuit wiring terminal with correct terminal pigtail that meets the continuous electrical current load requirement and all fuse blocks found with thermal damage.
• Navistar’s plan for reimbursement of pre-notification remedies, on file with NHTSA and dated 05/06/2022, applies and reimbursement instructions will be included in the customer notification. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy wire terminal meets the continuous electrical current load requirement where the recalled wire terminal does not.
01/06/2020 – Navistar begins use of a redesigned PDM cab harness assembly. Recall Schedule :
Description of Recall Schedule : It is estimated that the Customer and Dealer notification letters will be
mailed by 06/05/2023.
Planned Dealer Notification Date : JUN 05, 2023 – JUN 05, 2023
Planned Owner Notification Date : JUN 05, 2023 – JUN 05, 2023
* NR – Not Reported

**************************************************************************************************************

OMB Control No.: 2127-0004
Part 573 Safety Recall Report 23V-248
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
Navistar, Inc. JUN 01, 2023 NHTSA Recall No. : 23V-248 Manufacturer Recall No. : 23510 Manufacturer Information :
Manufacturer Name : Navistar, Inc.
Address : 2701 Navistar Drive
Lisle IL 60532 Company phone : 331-332-1590
Population :
Number of potentially involved : 42,054 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2017-2019 International ProStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 2,436 ProStar model trucks in the suspect population.
Production Dates : JAN 13, 2016 – MAR 02, 2018
VIN Range 1 : Begin : NR End : NR ntial Part 573 Safety Recall Report 23V-248 Page 2 Vehicle 2 : 2017-2020 International DuraStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 30,515 DuraStar model trucks in the suspect population Production Dates : NOV 28, 2016 – DEC 20, 2019
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2017-2020 International WorkStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 8,512 WorkStar model trucks in the suspect population Production Dates : JAN 19, 2016 – DEC 04, 2019
VIN Range 1 : Begin : NR End : NR Not sequential The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 3 Vehicle 4 : 2016-2017 International TranStar Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 263 TranStar model trucks in the suspect population.
Production Dates : DEC 14, 2015 – APR 12, 2016
VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2018-2019 IC Bus HC Commercial Bus Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : • The suspect population is identified by models equipped with factory installed Heating/Ventilating/Air Conditioning (HVAC) system.
• The inclusive dates of manufacture were determined by when Navistar began use of Power Distribution Center (PDC) main cab harness with low current terminal in HVAC blower motor circuit through when Navistar began use of PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
• The vehicles in the suspect population were built with PDC main cab harness with low current terminal in HVAC blower motor circuit and all similar vehicles not subject to this recall were built with PDC main cab harness with correct high current terminal in HVAC blower motor circuit.
There are 134 HC Commercial buses in the suspect population.
Production Dates : AUG 07, 2017 – OCT 25, 2018
VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect :
Description of the Defect : The HVAC blower motor circuit on the load side of the circuit breaker in the PDM may have been assembled with a wire terminal that does not meet the continuous electrical current load requirement. This can cause over-heating that may melt the plastic material of the terminal block for the HVAC circuit and cause subsequent thermal damage of the surrounding area of the PDM and or dash panels. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248 Page 4 FMVSS 1 : NR FMVSS 2 : NR
Description of the Safety Risk : A wiring terminal that does not meet the continuous electrical current load requirement of the HVAC blower motor circuit can cause a fire that may result in property damage to the vehicle and/or personal injury or death to the vehicle operator.
Description of the Cause : The supplier did not use the Navistar specified wire terminal for the HVAC blower motor load circuit. A terminal which fit physically into the terminal block but could not meet the continuous electrical current load requirement was substituted to a different part number. In the supplier’s system it indicated that both part numbers could be used as they were the same style and for the same gauge wire. The supplier did not take into account the continuous amperage load capability required of the HVAC blower motor circuit. Identification of Any Warning
that can Occur : None. Involved Components : Component Name 1 : Wire terminal Component Description : Terminal, Electrical, Cable Component Part Number : 3536590C1 Supplier Identification : Component Manufacturer
Name : MSSL Wiring System Inc. (MSSL) Address : Prolongación Isidro
Lopez Zertuche # 1950 Colonia Capellania Ramos Arizpe Coahuila, CP Foreign States 25900
Country : Mexico Chronology :
The chronology exceeds the 2000-character limit and will be submitted as a miscellaneous document. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 23V-248
Page 5
The information contained in this report was submitted pursuant to 49 CFR §573
Description of Remedy :
Description of Remedy Program : • The remedy will involve replacing the HVAC blower motor load
circuit wiring terminal with correct terminal pigtail that meets the continuous electrical current load requirement and all fuse blocks found with thermal damage.
• Navistar’s plan for reimbursement of pre-notification remedies, on file with NHTSA and dated 05/06/2022, applies and reimbursement instructions will be included in the customer notification. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedy wire terminal meets the continuous electrical current load requirement where the recalled wire terminal does not.
01/06/2020 – Navistar begins use of a redesigned PDM cab harness assembly. Recall Schedule :
Description of Recall Schedule : It is estimated that the Customer and Dealer notification letters will be
mailed by 06/05/2023.
Planned Dealer Notification Date : JUN 05, 2023 – JUN 05, 2023
Planned Owner Notification Date : JUN 05, 2023 – JUN 05, 2023
* NR – Not Reported

SEOCONTENT-END