February 23, 2024 NHTSA CAMPAIGN NUMBER: 24V145000
Insufficient Air Volume in Brake System /FMVSS 121
Insufficient air volume can reduce braking performance and increase the risk of a crash.
NHTSA Campaign Number: 24V145
Manufacturer PACCAR
Incorporated
Components SERVICE BRAKES, AIR
Potential Number of Units Affected 697
Summary
PACCAR Incorporated (PACCAR) is recalling certain 2009-2021 Kenworth C500, 2014-2016 Kenworth T440, 2009-2015 Kenworth T660, 2015-2024 Kenworth T680, 2009-2024 Kenworth T800, 2013-2023 Kenworth T880, and 2009-2019 Kenworth W900 vehicles. The air tanks have an insufficient volume of air for the brake system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 121, “Air Brake Systems.”
Remedy
Dealers will install the correct volume air tanks, free of charge. Owner notification letters are expected to be mailed April 23, 2024. Owners may contact PACCAR customer service at 1-425-828-5888. PACCAR’s number for this recall is 24KWD.
Notes
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.
Chronology :
05-19-23: Safety and Compliance was notified by engineering that a drawing issue was identified which overrepresented the volume of certain air tanks and may result in incorrect air tank volume calculations per vehicle. No affected vehicles in field identified to have insufficient air volume due to the drawing issue, but additional vehicles showed insufficient air volume with unknown root cause. Investigation opened.
06-06-23: Current estimated affected population is 71 vehicles. Investigation and backlog search continues.
06-15-23: Investigation ongoing.
02-14-24: Investigation summarized for Safety Committee Review.
02-16-24: Safety Committee meeting held. The Safety Committee concurs that a regulatory noncompliance exists and that the affected population shall be recalled.
02-19-24: Final corrective action implemented. Backlog search was completed and did not identify any additional vehicles to include in the affected population.
As of February 16, 2024, PACCAR received zero warranty claims and zero reports about the trucks in the field that may be related to the issue. Zero reports of deaths or injuries have been received.
71 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| KENWORTH | C500 | 2009-2021 |
| KENWORTH | T440 | 2014-2016 |
| KENWORTH | T660 | 2009-2015 |
| KENWORTH | T680 | 2015-2024 |
| KENWORTH | T800 | 2009-2024 |
| KENWORTH | T880 | 2013-2023 |
| KENWORTH | W900 | 2009-2019 |
5 Associated Documents
Noncompliance Notice 573 Report
RCLRPT-24V145-1086.PDF 217.728KB
Recall Acknowledgement
RCAK-24V145-1083.pdf 645.438KB
Recall 573 Report – March 4, 2024
RCLRPT-24V145-8673.PDF 217.746KB
Manufacturer Notices(to Dealers,etc)
RCMN-24V145-4369.pdf 101.949KB
Safety Bulletin
RCSB-24V145-8442.pdf 101.949KB
Latest Recalls Documents
For the Latest and Most recent Recall Information Visit the link below…
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SEOCONTENT-START
OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-145
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
PACCAR Incorporated FEB 23, 2024 NHTSA Recall No. : 24V-145 Manufacturer Recall No. : 24KWD Manufacturer Information :
Manufacturer Name : PACCAR Incorporated
Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004
Company phone : 940 591 4220
Population :
Number of potentially involved : 697 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2009-2021 Kenworth C500
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 4 C500 were identified.
Production Dates : AUG 12, 2008 – SEP 10, 2020 VIN Range 1 : Begin : 1NKDX40XX9R237698 End : 1NKDX40X8RR386014 ✔ Not sequential Vehicle 2 : 2014-2016 Kenworth T440
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 19 T440 were identified.
Production Dates : NOV 14, 2013 – SEP 28, 2015 Vehicle 3 : 2009-2015 Kenworth T660
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 233 T660 were identified. Production Dates : AUG 12, 2008 – NOV 10, 2014 Part 573 Safety Recall Report 24V-145 Page 2 Vehicle 4 : 2015-2024 Kenworth T680
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 81 T680 were identified.
Production Dates : JAN 21, 2014 – JAN 12, 2023 Vehicle 5 : 2009-2024 Kenworth T800
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 264 T800 were identified.
Production Dates : JAN 09, 2008 – OCT 26, 2023 Vehicle 6 : 2013-2023 Kenworth T880
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 72 T880 were identified.
Production Dates : DEC 03, 2012 – NOV 01, 2022 Vehicle 7 : 2009-2019 Kenworth W900
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 24 W900 were identified.
Production Dates : FEB 05, 2008 – JAN 25, 2018 Description of Noncompliance : Description of the Noncompliance : The air tank reservoir volume in certain chassis does not meet the air volume requirements per FMVSS 121, which requires the combined volume of all service reservoir shall be at least 12 times the combined volume of all service brake chambers. FMVSS 1 : 121 – Air brake systems FMVSS 2 : NR
Description of the Safety Risk : Less than the required air tank reservoir volume may not allow enough brake The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-145 Page 3 Description of the Safety Risk : application to slow the vehicle in an emergency, which may increase the risk of a crash.
Description of the Cause : Stages in the order processing sequence had opportunity for inconsistencies in data. Identification of Any Warning
that can Occur : Driver will be alerted by a warning light in the dash and an audible alarm indicating low system pressure. A reduction in air pressure will be reflected on the primary and secondary air pressure gauges. Involved Components : Component Name 1 : Air tanks Component Description : Air tanks Component Part Number : N/A Supplier Identification : Component Manufacturer
Name : PACCAR
Address : 777 106th Ave NE
Bellevue Washington 98004 Country : United States Chronology :
05-19-23: Safety and Compliance was notified by engineering that a drawing issue was identified which overrepresented the volume of certain air tanks and may result in incorrect air tank volume calculations per vehicle. No affected vehicles in field identified to have insufficient air volume due to the drawing issue, but additional vehicles showed insufficient air volume with unknown root cause. Investigation opened. 06-06-23: Current estimated affected population is 71 vehicles. Investigation and backlog search continues. 06-15-23: Investigation ongoing.
02-14-24: Investigation summarized for Safety Committee Review. 02-16-24: Safety Committee meeting held. The Safety Committee concurs that a regulatory noncompliance exists and that the affected population shall be recalled. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-145
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
02-19-24: Final corrective action implemented. Backlog search was completed and did not identify any additional vehicles to include in the affected population. As of February 16, 2024, PACCAR received zero warranty claims and zero reports about the trucks in the field that may be related to the issue. Zero reports of deaths or injuries have been received.
Description of Remedy :
Description of Remedy Program : Affected vehicle owners will be notified and dealers will be notified to
install the correct volume air tanks, free of charge. Owners who incurred costs to obtain a remedy for the problem addressed by the recall in advance of receiving notification may seek reimbursement through the process outlined in the general reimbursement plan on file. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedied vehicles will meet the air tank volume requirements per FMVSS 121.
Multiple root causes were identified, with final corrective action implemented on February 19, 2024.
Recall Schedule :
Description of Recall Schedule : Notifications will be sent within 60 days.
Planned Dealer Notification Date : APR 23, 2024 – APR 23, 2024
Planned Owner Notification Date : APR 23, 2024 – APR 23, 2024
* NR – Not Reported
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OMB Control No.: 2127-0004
Part 573 Safety Recall Report 24V-145
The information contained in this report was submitted pursuant to 49 CFR §573
Manufacturer Name : Submission Date :
PACCAR Incorporated MAR 04, 2024 NHTSA Recall No. : 24V-145 Manufacturer Recall No. : 24KWD Manufacturer Information :
Manufacturer Name : PACCAR Incorporated
Address : 777 106TH AVENUE NORTHEAST BELLEVUE WA 98004
Company phone : 940 591 4220
Population :
Number of potentially involved : 697 Estimated percentage with defect : 100 %
Vehicle Information : Vehicle 1 : 2009-2021 Kenworth C500
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 4 C500 were identified.
Production Dates : AUG 12, 2008 – SEP 10, 2020 VIN Range 1 : Begin : 1NKDX40XX9R237698 End : 1NKDX40X8RR386014 ✔ Not sequential Vehicle 2 : 2014-2015 Kenworth T440
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 14 T440 were identified.
Production Dates : NOV 14, 2013 – DEC 12, 2014 Vehicle 3 : 2009-2015 Kenworth T660
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 233 T660 were identified. Production Dates : AUG 12, 2008 – NOV 10, 2014 Part 573 Safety Recall Report 24V-145 Page 2 Vehicle 4 : 2015-2024 Kenworth T680
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 81 T680 were identified.
Production Dates : JAN 21, 2014 – JAN 12, 2023 Vehicle 5 : 2009-2024 Kenworth T800
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 264 T800 were identified.
Production Dates : JAN 09, 2008 – OCT 26, 2023 Vehicle 6 : 2013-2023 Kenworth T880
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 72 T880 were identified.
Production Dates : DEC 03, 2012 – NOV 01, 2022 Vehicle 7 : 2009-2019 Kenworth W900
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 24 W900 were identified.
Production Dates : FEB 05, 2008 – JAN 25, 2018 Vehicle 8 : 2016-2016 Kenworth T470
Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL
Descriptive Information : A search of vehicles built since January 2008 was used to identify vehicles with less than the required air reservoir volume. A total of 5 T470 were identified.
Production Dates : MAY 04, 2015 – SEP 28, 2015 The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-145 Page 3 Description of Noncompliance : Description of the Noncompliance : The air tank reservoir volume in certain chassis does not meet the air volume requirements per FMVSS 121, which requires the combined volume of all service reservoir shall be at least 12 times the combined volume of all service brake chambers. FMVSS 1 : 121 – Air brake systems FMVSS 2 : NR
Description of the Safety Risk : Less than the required air tank reservoir volume may not allow enough brake application to slow the vehicle in an emergency, which may increase the risk of a crash.
Description of the Cause : Stages in the order processing sequence had opportunity for inconsistencies in data. Identification of Any Warning
that can Occur : Driver will be alerted by a warning light in the dash and an audible alarm indicating low system pressure. A reduction in air pressure will be reflected on the primary and secondary air pressure gauges. Involved Components : Component Name 1 : Air tanks Component Description : Air tanks Component Part Number : N/A Supplier Identification : Component Manufacturer
Name : PACCAR
Address : 777 106th Ave NE
Bellevue Washington 98004 Country : United States Chronology :
05-19-23: Safety and Compliance was notified by engineering that a drawing issue was identified which overrepresented the volume of certain air tanks and may result in incorrect air tank volume calculations per vehicle. No affected vehicles in field identified to have insufficient air volume due to the drawing issue, but additional vehicles showed insufficient air volume with unknown root cause. Investigation opened. The information contained in this report was submitted pursuant to 49 CFR §573 Part 573 Safety Recall Report 24V-145
Page 4
The information contained in this report was submitted pursuant to 49 CFR §573
06-06-23: Current estimated affected population is 71 vehicles. Investigation and backlog search continues.
06-15-23 through 02-13-24: Investigation ongoing. 02-14-24: Investigation summarized for Safety Committee Review.
02-16-24: Safety Committee meeting held. The Safety Committee concurs that a regulatory noncompliance exists and that the affected population shall be recalled. 02-19-24: Final corrective action implemented. Backlog search was completed and did not identify any additional vehicles to include in the affected population. As of February 16, 2024, PACCAR received zero warranty claims and zero reports about the trucks in the field that may be related to the issue. Zero reports of deaths or injuries have been received.
Description of Remedy :
Description of Remedy Program : Affected vehicle owners will be notified and dealers will be notified to
install the correct volume air tanks, free of charge. Owners who incurred costs to obtain a remedy for the problem addressed by the recall in advance of receiving notification may seek reimbursement through the process outlined in the general reimbursement plan on file. How Remedy Component Differs from Recalled Component :
Identify How/When Recall Condition was Corrected in Production : The remedied vehicles will meet the air tank volume requirements per FMVSS 121.
Multiple root causes were identified, with final corrective action implemented on February 19, 2024.
Recall Schedule :
Description of Recall Schedule : Notifications will be sent within 60 days.
Planned Dealer Notification Date : APR 23, 2024 – APR 23, 2024
Planned Owner Notification Date : APR 23, 2024 – APR 23, 2024
* NR – Not Reported
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