FL949 – Electrical Short Circuit May Cause Engine Stall – 2023 Freightliner FCCC & Western Star

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Amended Defect Information Report (Section 573.6) FL-949 Date of Submission: October 5, 2022 (July 29, 2022) Manufacturer: Daimler Truck North America LLC P.O. BOX 3849 Portland, Oregon 97208 Type of Report: X Safety Defect Non-Compliance Vehicle Information Model Yr. Start: 2022 Model Yr. End: 2023 Make: Freightliner, Western Star, FCCC Model: 108SD, 114SD, Business Class M2, Cascadia, 4700, 47X, 49X, MC Chassis, MT45 Chassis, S2C 106Cab, S2CRV 106 Cab, XCM Chassis, XCR Chassis, XCS Chassis Production Dates: Begin: 03/17/2022 End: 07/19/22 Type: Truck/Tractor Descriptive Information: DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Number potentially involved: 1375 Estimated percentage of involve with defect: 100% Defect Description Describe the defect: DTNA’s supplier Cummins states, “The soldering fixture had a loose screw, which in certain cases may contacting the Lytic cap and applying excess force into the PCB. Over time with scrubbing or movement of PCB, the capacitor may wear through the dielectric layer into the V-Batt layer resulting in high current draw, which may cause loss of communication to the ECM. If a noncompliance, provide the applicable FMVSS: N/A Describe the safety risk: DTNA’s supplier Cummins states, “Loss of communication to the ECM while driving may cause unexpected engine stall without prior warnings, and the inability of restart, which may increase the risk of a crash.” Identify any warning, which can precede or occur: Unknown If applicable, identify the manufacture of the defective or noncompliant component: Engine Involved Components Component Name: Printed Circuit Boards (PCB) Component Description: Engine PCB Component Part Number: Multiple Supplier Identification: Cummins Inc. OEM Service & Quality Leader Mobile: (812) 314-9887 Email: steve.collins@cummins.com 500 Jackson St. Columbus, Indiana 47201 Mail Code: COB111 Component Manufacturer: Cummins Inc. Chronology of Noncompliance Determination Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision. On July 11, 2022, Cummins notified DTNA Compliance of 10 documented occurrences of ECM communication failure on DTNA vehicles powered by specific Cummins engines. DTNA immediately began an investigation to learn about failure modes and the detectability of such failure modes. In parallel with DTNA’s investigation, as DTNA understands, Cummins had already been investigating the issue. On July 22, 2022, Cummins informed DTNA of an impending equipment recall. DTNA on July 25, 2022, immediately issued a recall out of an abundance of caution. DTNA amended the 573 filing on October 5, 2022 to reflect Cummins’ provision of a remedy plan. Identify the Remedy Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement. Per Cummins 22E-063 573 filing , “Cummins will replace the suspect ECM.” Identify the Recall Schedule Describe the recall schedule for notifications: Customer notification will be made by first class mail using Daimler Trucks North America records to determine the customers affected. Planned Dealer Notification Begin Date: 09/26/2022 Planned Dealer Notification End Date: 09/26/2022 Planned Owner Notification Begin Date: 09/26/2022 Planned Owner Notification End Date: 09/26/2022 Manufacture’s identification code for this recall (if applicable): FL-949 DTNA Representative; Tiffani Torgeson Manager Compliance and Regulatory Affairs

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Defect Information Report (Section 573.6) FL-949 Date of Submission: July 29, 2022 Manufacturer: Daimler Truck North America LLC P.O. BOX 3849 Portland, Oregon 97208 Type of Report: X Safety Defect Non-Compliance Vehicle Information Model Yr. Start: 2022 Model Yr. End: 2023 Make: Freightliner, Western Star, FCCC Model: 108SD, 114SD, Business Class M2, Cascadia, 4700, 47X, 49X, MC Chassis, MT45 Chassis, S2C 106Cab, S2CRV 106 Cab, XCM Chassis, XCR Chassis, XCS Chassis Production Dates: Begin: 03/17/2022 End: 07/19/22 Type: Truck/Tractor Descriptive Information: DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Number potentially involved: 1375 Estimated percentage of involve with defect: 100% Defect Description Describe the defect: DTNA’s supplier Cummins states, “The soldering fixture had a loose screw, which in certain cases may contacting the Lytic cap and applying excess force into the PCB. Over time with scrubbing or movement of PCB, the capacitor may wear through the dielectric layer into the V-Batt layer resulting in high current draw, which may cause loss of communication to the ECM. If a noncompliance, provide the applicable FMVSS: N/A Describe the safety risk: DTNA’s supplier Cummins states, “Loss of communication to the ECM while driving may cause unexpected engine stall without prior warnings, and the inability of restart, which may increase the risk of a crash.” Identify any warning, which can precede or occur: Unknown If applicable, identify the manufacture of the defective or noncompliant component: Engine Involved Components Component Name: Printed Circuit Boards (PCB) Component Description: Engine PCB Component Part Number: Multiple Supplier Identification: Cummins Inc. OEM Service & Quality Leader Mobile: (812) 314-9887 Email: steve.collins@cummins.com 500 Jackson St. Columbus, Indiana 47201 Mail Code: COB111 Component Manufacturer: Cummins Inc. Chronology of Noncompliance Determination Provide the chronology of events leading up to the defect decision or test data for the noncompliance decision. On July 11, 2022, Cummins notified DTNA Compliance of 10 documented occurrences of ECM communication failure on DTNA vehicles powered by specific Cummins engines. DTNA immediately began an investigation to learn about failure modes and the detectability of such failure modes. In parallel with DTNA’s investigation, as DTNA understands, Cummins had already been investigating the issue. On July 22, 2022, Cummins informed DTNA of an impending equipment recall. DTNA on July 25, 2022, immediately issued a recall out of an abundance of caution. Identify the Remedy Describe the defect/noncompliance remedy program, including the manufacture’s plan for reimbursement. As DTNA understands, Cummins is in the process of developing a remedy program. The 573 will be amended once an inspection and remedy plan has been developed. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. Identify the Recall Schedule Describe the recall schedule for notifications: Customer notification will be made by first class mail using Daimler Trucks North America records to determine the customers affected. Planned Dealer Notification Begin Date: 09/26/2022 Planned Dealer Notification End Date: 09/26/2022 Planned Owner Notification Begin Date: 09/26/2022 Planned Owner Notification End Date: 09/26/2022 Manufacture’s identification code for this recall (if applicable): FL-949 DTNA Representative; Tiffani Torgeson Manager Compliance and Regulatory Affairs

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P.O. Box 4090 Portland, OR 97208-4090 800.547.0712 Phone 503.745.9009 Fax Daimler DaimlerTruck Truck North America LLC NorthAmericaLLC September 2022 FL949 NHTSA #22V-554 NHTSA #22V-553 (School Bus) TC #2022-413 TC #2022-412 (School Bus) Cummins Campaign #C2614 Cummins NHTSA #22E-063 Recall Notification Cummins Vitesco ECU Quality Spill (Companion Campaign) Cummins has begun notifying its customers and repair locations of a safety related defect that exists in certain chassis manufactured by Freightliner Custom Chassis Corporation which have been delivered to your company. A remedy without charge is now available, and owners may take their vehicle to a Cummins Distributor or authorized Warranty Dealer to have the recall performed. The Important Campaign Information (ICI) letter which includes a copy of the Cummins owner letter, along with a French translation, is attached to the email you have received. A list of potentially affected vehicles delivered to your company is also attached. Your company may have an obligation to notify its dealers, distributors, and customers of this recall under Title 49 Code of Federal Regulations Part 577.13 and/or Motor Vehicle Safety Act Section 10(1). If you have questions or need further information, please contact the Daimler Truck Warranty Campaigns Department at (800) 547-0712, 7:00 a.m. to 4:00 p.m. Pacific Time, or contact Cummins Care at 1-800-CUMMINS (1-800-286-6467). WARRANTY CAMPAIGNS DEPARTMENT Enclosure

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From: Wiley-Mcadams, Emily (164) [DT] To: Mccormack, Steve (164) [DT] Cc: “djordal@winnebagoind.com”; “rpost@winnebagoind.com”; “jpmalecha@winnebagoind.com”; “tolson@winnebagoind.com” Subject: Recall FL949 DIR Notice to Body Builder Date: Thursday, August 04, 2022 2:50:00 PM Attachments: FL949 Body Builder DIR Notice.pdf 22-081 Signed DIR Cummins Vitesco ECU Quality Spill Non-School Buses.pdf 22-081 DIN Cummins Vitesco ECU Quality Spill Non-School Buses.pdf Winnebago pop.xlsx Steve, all the BB contact names are in CC. Attached is information regarding Daimler Truck North America’s Recall FL949 Cummins Vitesco ECU (Companion Campaign). This recall has not yet been released. Owners have not been notified. Attachments: · FL949 DIR Notice · US DIR · CAN DIR · VIN List Thank you, Steve McCormack Project & Program Management Warranty Campaigns Dept Daimler Truck North America LLC Portland, Oregon 97208-4090 Phone: 503-745-5788

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Daimler Truck North America LLC REF #: ICI22-040 1B Effective: 9/27/2022B Release: 9/27/2022 7B SUBJECT: Cummins Vitesco ECU Quality Spill (Companion Campaign) 0B 4B This letter is to inform you that Recall FL949 – Cummins Vitesco ECU Quality Spill recall is a supplier responsible recall. Cummins has notified customers and repair locations of the Final Release regarding Cummins safety recall #C2614 CM2450 ECM Replacement Safety Campaign. Please see the attached Final Notice. Note for DTNA dealers: Final repair is to be completed by Cummins Distributors and authorized Warranty Dealers. This ICI letter is only for your information should the dealership receive any questions. For your reference, a copy of the Cummins released owner notice concerning Cummins safety recall #C2614 CM2450 ECM Replacement Safety Campaign is on the following pages. If you have questions or concerns about this recall, please contact your local Cummins Distributor or authorized Warranty Dealer. You may also contact Cummins Care at 1-800-CUMMINS (1-800-286-6467), or visit their website at care.cummins.com. If you have questions or need further information on this ICI please contact the Warranty Campaigns Department by submitting an inquiry through the WSC Link on DTNAConnect. WARRANTY CAMPAIGNS DEPARTMENT P.O. Box 4090 800-547-0712 Portland, Oregon 97208-4090 ATTENTION: Dealer Principal, Warranty Manager, Service Manager, Parts Manager Freightliner Dealers – U.S. and Canada Western Star and Sterling Dealers – U.S. and Canada FCCC Dealers – U.S. and Canada Thomas Built Buses Dealers – U.S. and Canada Direct Warranty Customers – U.S. and Canada Detroit Diesel Distributors Export Distributors If you have questions about this Letter, please submit your inquiry on the Web using the WSC Link on DTNAConnect FL949 NHTSA #22V-554 NHTSA #22V-553 (school bus) TC #2022-413 TC #2022-412 (school bus) Cummins Campaign #C2614 Cummins NHTSA #22E-063 4B Daimler Truck North America LLC Cette lettre vise à vous informer que Rappel FL949 – Cummins Vitesco ECU Quality de déversement est un rappelresponsable du fournisseur. Cummins a avisé les clientset les lieux de réparation de la version finale concernant Rappel de sécurité Cummins no C2614 CM2450 Campagne de sécurité pour le remplacement del’ ECM. Veuillez consulter l’avis final ci-joint. Note à l’intention des concessionnaires DTNA: Les réparations finales doivent être effectuées par les distributeurs Cummins et les concessionnaires de garantie autorisés. Cette lettre d’ICI est uniquement à titre d’information si le concessionnaire reçoit des questions. À titre de référence, une copie de l’avis de propriétaire publié par Cummins concernant Rappel de sécurité Cummins no C2614 CM2450 Campagnede sécurité de remplacement ECM est aux pages suivantes. Si vous avez des questions ou des préoccupations au sujet de ce rappel, veuillez communiquer avec votre Cummins local Distributeur ou concessionnaireagréé sous garantie. Vous pouvez également communiquer avec Cummins Care au 1-800-CUMMINS (1-800-286-6467), ou visiter leur site Web à care.cummins.com. Si vous avez des questions ou si vous avez besoin de plus amples renseignements à ce sujet, veuillez communiquer avec Service des campagnes de garantie en soumettant une demande par le biais du lien WSC sur DTNAConnect. SERVICE DES CAMPAGNES DE GARANTIE Case postale 4090 800-547-0712 Portland (Oregon) 97208- 4090 ATTENTION: Concessionnaire principal, Gestionnaire de garantie, Gestionnaire de service, Gestionnaire de pieces Concessionnaires Freightliner – États-Unis et Canada Marchands Western Star et Sterling – États-Unis et Canada Concessionnaires FCCC – États-Unis et Canada Thomas Built Buses Concessionnaires – États-Unis et Canada Clients sous garantie directe – États-Unis et Canada Distributeurs diesel de Detroit Distributeurs à l’exportation REF # : ICI22-040 En vigueur : 27/09/22 Sortie : 27/09/22 SUJET : Cummins Vitesco ECU Quality Spill (campagne d’accompagnement) Si vous avez des questions à propos de la présente lettre, soumettez votre demande de renseignements sur Web à l’aide du lien WSC sur DTNAConnect *** IMPORTANT SAFETY RECALL*** NHTSA Recall No. 22E-063 Cummins Campaign #C2614 September 27, 2022 Dear Cummins Customer: This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Cummins Inc. has decided that a defect which relates to motor vehicle safety exists in certain Cummins B6.7, L9, X12 and X15 engines that were manufactured between May 13, 2022 and June 28, 2022. This notice applies to the engine(s) listed on the enclosed table. WHAT IS THE PROBLEM? Your engine is equipped with an Engine Control Module (ECM) that may have a manufacturing defect that could result in an engine stall without warning. An unexpected engine stall without the ability to restart the engine may lead to an increased risk of a crash. WHAT ARE WE DOING ABOUT THE PROBLEM? Cummins has released #C2614 CM2450 ECM Replacement Safety Campaign to address this condition by replacing the ECM. This campaign is currently available at Cummins Distributors and authorized Warranty Dealers. The repair will be completed free of charge and most applications will require approximately 1.3 hours to complete. WHAT SHOULD YOU DO? Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this safety action performed on your engine(s). The distributor or dealer will work with you to schedule the best date to complete this repair. If you have not registered your Cummins product, please complete the enclosed registration card or register your product at https://prodreg.cummins.com/prodreg/#/webform/contactInfo. If you are no longer the owner of the engine(s) listed on the enclosed table, please forward this notice to the new owner or provide the new owner’s contact information to Cummins so that we can notify them of this recall. Federal law requires vehicle lessors receiving this recall notice to forward a copy of this notice to the lessee within ten (10) days. Also, it is a violation of Federal law for a dealer to deliver a new vehicle or equipment covered by this recall notice under a sale or lease until the defect has been remedied. If you previously paid to have this recall performed on your vehicle, you may be eligible for reimbursement. Please contact Cummins Care at the number below for more information. Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 USA Mail Code: 40911 Phone: 1 800 CUMMINS care.cummins.com *** IMPORTANT SAFETY RECALL*** Cummins Campaign #C2 614 Transport Canada Recall #2022-412, 2022-413 September 27, 2022 Dear Cummins Customer: This notice is sent to you in accordance with the requirements of the Motor Vehicle Safety Act. This is to inform you that your vehicle may contain a defect that could affect the safety of a person. Cummins is conducting a recall involving certain Cummins B6.7, L9, X12 and X15 engines that were manufactured between May 13, 2022 and June 28, 2022. This notice applies to your engine(s)/vehicle(s) listed on the enclosed table. WHAT IS THE PROBLEM? The subject engines are equipped with an Engine Control Module (ECM) that may have a manufacturing defect that could result in an engine stall without warning. An unexpected engine stall without the ability to restart the engine may lead to an increased risk of a crash. WHAT WILL CUMMINS DO? Cummins has released #C2614 CM2450 ECM Replacement Safety Campaign to address this condition by replacing the ECM. This campaign is currently available at Cummins Distributors and authorized Warranty Dealers. The repair will be completed free of charge and most applications will require approximately 1.3 hours to complete. WHAT SHOULD YOU DO? Contact the nearest Cummins Distributor or authorized Warranty Dealer to arrange to have this campaign performed on your engine. The distributor or dealer will work with you to schedule the best date to complete this repair. Vehicle lessors receiving this recall notice are required by law to forward a copy of this notice and any subsequent notices to the lessee within ten (10) days. Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 USA Mail Code: 40911 Phone: 1 800 CUMMINS care.cummins.com Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 USA Mail Code: 40911 Phone: 1 800 CUMMINS care.cummins.com WHO SHOULD YOU CONTACT IF YOU HAVE FURTHER QUESTIONS OR CONCERNS? If you have questions or concerns about this recall, please contact your local Cummins Distributor or authorized warranty dealer. You may also contact Cummins Care at 1-800-CUMMINS (1-800- 286-6467), or visit our website at care.cummins.com. If you have a complaint relative to this recall, you may report it to the following: Administrator National Highway Traffic Safety Administration 1200 New Jersey Avenue, SE Washington, DC 20590 You may also call the toll-free Vehicle Safety Hotline at 1-888-327-4236 (TTY: 1-800-424-9153); or go to http://www.safercar.gov. Cummins is taking this action in the interest of your safety and satisfaction with our products. We apologize for any inconvenience and thank you for your attention to this matter. Sincerely, Campaign Administrator Cummins Inc. *** RAPPEL IMPORTANT CONCERNANT LA SÉCURITÉ *** Campagne Cummins C2614 Numéro de rappel de Transports Canada 2022-412, 2022-413 27, Septembre, 2022 Cher client Cummins, Le présent avis vous est émis conformément aux exigences de la Loi sur la sécurité des véhicules automobiles. La présente a pour but de vous informer que votre véhicule est susceptible d’avoir un défaut qui pourrait porter atteinte à la sécurité humaine. Cummins a lancé la campagne de rappel impliquant certains moteurs B6.7, L9, X12 et X15 de Cummins, dont la construction se situe entre le 13 mai 2022 et le 28 juin 2022. Cet avis s’applique aux moteurs et aux véhicules figurant dans le tableau ci-joint. QUEL EST LE PROBLÈME? Le moteur en question est doté d’un module de commande de moteur (ECM) pouvant comporter un défaut de fabrication, entraînant le calage du moteur sans avertissement. Un calage de moteur inattendu, sans possibilité de redémarrer le moteur, peut contribuer à augmenter les risques de collision. QUE FAISONS-NOUS POUR RÉSOUDRE LE PROBLÈME? Cummins a lancé la campagne de rappel #C2614 CM2450 ECM Replacement Safety Campaign pour remédier à la situation, en remplaçant le module de commande de moteur (ECM). Cette campagne de rappel est en cours chez les distributeurs et les concessionnaires de garantie agréés Cummins. La réparation sera effectuée sans frais et nécessitera environ 1.3 heures. QUE DEVEZ-VOUS FAIRE? Communiquez avec le distributeur Cummins ou le concessionnaire de garantie agréé le plus proche pour organiser cette réparation sur votre moteur. Le distributeur ou le concessionnaire vous proposera une date qui pourrait le mieux convenir pour l’intervention. Les locateurs de véhicules qui reçoivent le présent avis de rappel sont dans l’obligation d’acheminer une copie de cet avis, ainsi que tout autre avis, au locataire dans les dix (10) jours suivant la réception dudit avis. QUI DEVEZ-VOUS CONTACTER EN CAS DE QUESTION OU D’INQUIÉTUDE? Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 États- Unis Code de courrier : 40911 Téléphone i : 1 800 CUMMINS Cummins Inc. Box 3005 Columbus, IN 47202 – 3005 États- Unis Code de courrier : 40911 Téléphone : 1 800 CUMMINS i Communiquez avec votre distributeur local ou avec votre concessionnaire de garantie agréé Cummins pour toute question ou toute inquiétude concernant ce rappel. Vous pouvez également communiquer avec l’équipe d’entretien de Cummins au 1 800 CUMMINS (1 800 286-6467), ou visiter notre site Web care.cummins.com. Pour de plus amples renseignements concernant le rappel, communiquez avec le service de renseignements de Transports Canada en composant 1 800 333-0510. Si vous n’avez pas enregistré votre produit Cummins, veuillez remplir la carte d’enregistrement ci-jointe ou enregistrez votre produit sur le site; https://prodreg.cummins.com/prodreg/#/webform/contactInfo. Si vous n’êtes plus le propriétaire du ou des moteurs ou véhicules qui figurent dans le tableau cijoint, veuillez faire parvenir le présent avis au nouveau propriétaire ou faire parvenir ses coordonnées à Cummins afin que nous puissions l’avertir de ce rappel. Cummins prend cette mesure pour renforcer votre sécurité et pour accroître votre satisfaction en ce qui concerne nos produits. Nous vous présentons toutes nos excuses pour ce désagrément et nous vous remercions de votre attention. Bien cordialement, Administrateur de campagne Cummins Inc.

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-554 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Daimler Trucks North America, LLC Submission Date : OCT 05, 2022 NHTSA Recall No. : 22V-554 Manufacturer Recall No. : FL-949 Manufacturer Information : Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue Portland OR 97217-3849 Company phone : 800-745-8000 Population : Number of potentially involved : 1,375 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Freightliner 108SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Freightliner 114SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 14, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Freightiner Business Class M2 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 25, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2023 Freightliner Cascadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAR 17, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Western Star 4700 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 14, 2022 – JUL 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2023-2023 Western Star 47X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 30, 2022 – JUL 12, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2023-2023 Western Star 49X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 17, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2023-2023 Freightliner (FCCC) MC Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUN 20, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 9 : 2023-2023 Freightliner (FCCC) MT45 Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 02, 2022 – JUL 19, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2023 Freightliner (FCCC) S2C 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 13, 2022 – JUN 22, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 11 : 2023-2023 Freightliner (FCCC) S2RV 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 06, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 12 : 2023-2023 Freightliner (FCCC) XCM Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUN 24, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 13 : 2023-2023 Freightliner (FCCC) XCR Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 14 : 2023-2023 Freightliner (FCCC) XCS Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUL 07, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : DTNA’s supplier Cummins states, “The soldering fixture had a loose screw, which in certain cases may contacting the Lytic cap and applying excess force into the PCB. Over time with scrubbing or movement of PCB, the capacitor may wear through the dielectric layer into the VBatt layer resulting in high current draw, which may cause loss of communication to the ECM. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : DTNA’s supplier Cummins states, “Loss of communication to the ECM while driving may cause unexpected engine stall without prior warnings, and the inability of restart, which may increase the risk of a crash.” Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : Printed Circuit Boards (PCB) Component Description : Engine PCB Component Part Number : Multiple Supplier Identification : Component Manufacturer Name : Cummins, Inc. Address : 500 Jackson St Columbus Indiana 47201 Country : United States Chronology : Part 573 Safety Recall Report 22V-554 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 On July 11, 2022, Cummins notified DTNA Compliance of 10 documented occurrences of ECM communication failure on DTNA vehicles powered by specific Cummins engines. DTNA immediately began an investigation to learn about failure modes and the detectability of such failure modes. In parallel with DTNA’s investigation, as DTNA understands, Cummins had already been investigating the issue. On July 22, 2022, Cummins informed DTNA of an impending equipment recall. DTNA on July 25, 2022, immediately issued a recall out of an abundance of caution. Description of Remedy : Description of Remedy Program : Per Cummins 22E-063 573 filing , “Cummins will replace the suspect ECM” How Remedy Component Differs from Recalled Component : NR Identify How/When Recall Condition was Corrected in Production : NR Recall Schedule : Description of Recall Schedule : Customer notification will be made by first class mail using Daimler Trucks North America records to determine the customers affected. Planned Dealer Notification Date : SEP 26, 2022 – SEP 26, 2022 Planned Owner Notification Date : SEP 26, 2022 – SEP 26, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-554 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Daimler Trucks North America, LLC Submission Date : JUL 29, 2022 NHTSA Recall No. : 22V-554 Manufacturer Recall No. : FL-949 Manufacturer Information : Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue Portland OR 97217-3849 Company phone : 800-745-8000 Population : Number of potentially involved : 1,375 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Freightliner 108SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Freightliner 114SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 14, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Freightiner Business Class M2 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 25, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2023 Freightliner Cascadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAR 17, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Western Star 4700 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 14, 2022 – JUL 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2023-2023 Western Star 49X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 17, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2023-2023 Freightliner (FCCC) MC Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUN 20, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2023-2023 Freightliner (FCCC) MT45 Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 02, 2022 – JUL 19, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 9 : 2023-2023 Freightliner (FCCC) S2C 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 13, 2022 – JUN 22, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2023 Western Star 47X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 30, 2022 – JUL 12, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 11 : 2023-2023 Freightliner (FCCC) XCM Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUN 24, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 12 : 2023-2023 Freightliner (FCCC) S2RV 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 06, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 13 : 2023-2023 Freightliner (FCCC) XCR Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 14 : 2023-2023 Freightliner (FCCC) XCS Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUL 07, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : DTNA’s supplier Cummins states, “The soldering fixture had a loose screw, which in certain cases may contacting the Lytic cap and applying excess force into the PCB. Over time with scrubbing or movement of PCB, the capacitor may wear through the dielectric layer into the VBatt layer resulting in high current draw, which may cause loss of communication to the ECM. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : DTNA’s supplier Cummins states, “Loss of communication to the ECM while driving may cause unexpected engine stall without prior warnings, and the inability of restart, which may increase the risk of a crash.” Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : Printed Circuit Boards (PCB) Component Description : Engine PCB Component Part Number : Multiple Supplier Identification : Component Manufacturer Name : Cummins, Inc. Address : 500 Jackson St Columbus Indiana 47201 Country : United States Chronology : Part 573 Safety Recall Report 22V-554 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 On July 11, 2022, Cummins notified DTNA Compliance of 10 documented occurrences of ECM communication failure on DTNA vehicles powered by specific Cummins engines. DTNA immediately began an investigation to learn about failure modes and the detectability of such failure modes. In parallel with DTNA’s investigation, as DTNA understands, Cummins had already been investigating the issue. On July 22, 2022, Cummins informed DTNA of an impending equipment recall. DTNA on July 25, 2022, immediately issued a recall out of an abundance of caution. Description of Remedy : Description of Remedy Program : As DTNA understands, Cummins is in the process of developing a remedy program. The 573 will be amended once an inspection and remedy plan has been developed. A recall-specific reimbursement plan will be provided on the Recall Portal for those units not covered by the manufacturer’s limited warranty. How Remedy Component Differs from Recalled Component : NR Identify How/When Recall Condition was Corrected in Production : NR Recall Schedule : Description of Recall Schedule : Customer notification will be made by first class mail using Daimler Trucks North America records to determine the customers affected. Planned Dealer Notification Date : SEP 26, 2022 – SEP 26, 2022 Planned Owner Notification Date : SEP 26, 2022 – SEP 26, 2022 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-554 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Daimler Trucks North America, LLC Submission Date : OCT 11, 2022 NHTSA Recall No. : 22V-554 Manufacturer Recall No. : FL-949 Manufacturer Information : Manufacturer Name : Daimler Trucks North America, LLC Address : 4747 N. Channel Avenue Portland OR 97217-3849 Company phone : 800-745-8000 Population : Number of potentially involved : 1,375 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2023-2023 Freightliner 108SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 15, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2023-2023 Freightliner 114SD Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 27, 2022 – JUL 14, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Freightiner Business Class M2 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 25, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 4 : 2023-2023 Freightliner Cascadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAR 17, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 5 : 2023-2023 Western Star 4700 Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 14, 2022 – JUL 08, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2023-2023 Western Star 47X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 30, 2022 – JUL 12, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 7 : 2023-2023 Freightliner (FCCC) XCS Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUL 07, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 8 : 2023-2023 Freightliner (FCCC) MC Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 07, 2022 – JUN 20, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 9 : 2023-2023 Freightliner (FCCC) MT45 Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : MAY 02, 2022 – JUL 19, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 10 : 2023-2023 Freightliner (FCCC) S2C 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 13, 2022 – JUN 22, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 11 : 2023-2023 Freightliner (FCCC) S2RV 106CAB Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 06, 2022 – JUL 11, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 12 : 2023-2023 Freightliner (FCCC) XCM Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUN 24, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 13 : 2023-2023 Freightliner (FCCC) XCR Chassis Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 01, 2022 – JUL 13, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 14 : 2023-2023 Western Star 49X Vehicle Type : Body Style : Power Train : NR Descriptive Information : DTNA’s supplier Cummins states, “Printed Circuit Boards (PCB) for certain engines were manufactured with a defective solder fixture. The recall population was determined by identifying the oldest production lot associated with an Engine Control Module (ECM) failure, and including all production from that lot to the date in June 2022 when the improvements in the assembly process were instituted.” Production Dates : JUN 17, 2022 – JUN 30, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-554 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Defect : Description of the Defect : DTNA’s supplier Cummins states, “The soldering fixture had a loose screw, which in certain cases may contacting the Lytic cap and applying excess force into the PCB. Over time with scrubbing or movement of PCB, the capacitor may wear through the dielectric layer into the VBatt layer resulting in high current draw, which may cause loss of communication to the ECM. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : DTNA’s supplier Cummins states, “Loss of communication to the ECM while driving may cause unexpected engine stall without prior warnings, and the inability of restart, which may increase the risk of a crash.” Description of the Cause : NR Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : Printed Circuit Boards (PCB) Component Description : Engine PCB Component Part Number : Multiple Supplier Identification : Component Manufacturer Name : Cummins, Inc. Address : 500 Jackson St Columbus Indiana 47201 Country : United States Chronology : Part 573 Safety Recall Report 22V-554 Page 7 The information contained in this report was submitted pursuant to 49 CFR §573 On July 11, 2022, Cummins notified DTNA Compliance of 10 documented occurrences of ECM communication failure on DTNA vehicles powered by specific Cummins engines. DTNA immediately began an investigation to learn about failure modes and the detectability of such failure modes. In parallel with DTNA’s investigation, as DTNA understands, Cummins had already been investigating the issue. On July 22, 2022, Cummins informed DTNA of an impending equipment recall. DTNA on July 25, 2022, immediately issued a recall out of an abundance of caution. DTNA amended the 573 filing on October 5, 2022 to reflect Cummins’ provision of a remedy plan. Description of Remedy : Description of Remedy Program : Per Cummins 22E-063 573 filing , “Cummins will replace the suspect ECM” How Remedy Component Differs from Recalled Component : NR Identify How/When Recall Condition was Corrected in Production : NR Recall Schedule : Description of Recall Schedule : Customer notification will be made by first class mail using Daimler Trucks North America records to determine the customers affected. Planned Dealer Notification Date : SEP 26, 2022 – SEP 26, 2022 Planned Owner Notification Date : SEP 26, 2022 – SEP 26, 2022 * NR – Not Reported

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