SC0450 – Stability Control Programming – 2024 Mack Anthem & Pinnacle

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MACK TRUCKS RECALL ALERT © Mack Trucks, Inc. CONFIDENTIAL – For limited distribution only to circulation list above. This bulletin, and any information herein, is subject to change by Company without notice. For the most current and accurate information, always refer to Trucks Dealer Portal for the electronic version of this document. Description The electronic stability control may be inoperative due to the lack of yaw input as a result of a software programming error. In the event of the need for stability control intervention, the vehicle may not have the ability to mitigate a loss of stability which may increase the risk of a crash. There have been no field reports, warranty claims or customer complaints associated with this issue. The remedy will be to program the ABS/ESP ECU with software which restores the functionality of the yaw sensor to the stability control program. Model and Model Years Affected • Certain 2024 Mack Anthem and Pinnacle model vehicles manufactured September 06, 2023 through September 11, 2023. Vehicle Quantities • 13 vehicles (All US) Dealer Responsibilities • The National Traffic and Motor Vehicle Safety Act and Canadian Motor Vehicle Safety Act require dealers to ensure that all new and used vehicles are free of safety defects and comply with all relevant safety standards at the time of delivery to the consumer. • Dealers should make their personnel aware of the safety recall. In the event that a dealer has a vehicle included in the safety recall in their inventory to be sold, the condition must be corrected before releasing it to a customer. Notification Release Schedule • Vehicle list will be posted on the Trucks Dealer Portal October 19, 2023. • Owner notification letters will be released on or before December 03, 2023. • Repair Instruction will be released once they are available. Contact If you have questions or concerns about this recall, contact the Regulatory Affairs Department at vtna.regulatoryaffairs@volvo.com. Subject: Safety Recall SC0450, Stability Control Programming Recall Number: SRA-M450 Date: October 19, 2023 Applicable Markets: ☒U.S. ☐Canada ☐ Export

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-691 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Mack Trucks, Inc. Submission Date : OCT 13, 2023 NHTSA Recall No. : 23V-691 Manufacturer Recall No. : SC0450 Manufacturer Information : Manufacturer Name : Mack Trucks, Inc. Address : 2100 Mack Boulevard PO Box M Allentown PA 18105-5000 Company phone : 610-709-2131 Population : Number of potentially involved : 13 Estimated percentage with defect : 100 % Vehicle Information : Vehicle 1 : 2024-2024 Mack Anthem and Pinnacle Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The recall population is vehicles built from September 5, 2021 through September 12, which have Electronic Stability Control, while that specific program (VCP3.050 Factory Software) was being used to program vehicles in our factory. Production Dates : SEP 06, 2023 – SEP 11, 2023 VIN Range 1 : Begin : 1M1AN2GY3RM045727 End : 1M1AN2GY6RM045446 ✔ Not sequential Description of Defect : Description of the Defect : Electronic stability control on these vehicles is inoperative due to the lack of yaw input in the vehicles as a result of a software programming error. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : In the event of the need for a stability control intervention, the vehicle will not have that ability to mitigate a loss of stability event due to vehicle spin. Which may increase the risk of a crash. Description of the Cause : In-adequate validation of factory level programming tool software change. Identification of Any Warning that can Occur : After a short period of driving, the driver information display will indicate that the Electronic Stability Control is not working due to self diagnostics. Involved Components : Part 573 Safety Recall Report 23V-691 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Control Unit Component Description : ABS-Advanced (ESP+) Component Part Number : 23103633 Supplier Identification : Component Manufacturer Name : Mack Trucks Address : 7825 National Service Rd. Greensoboro North Carolina 27409-9667 Country : United States Chronology : September 13, 2023 Volvo Product Safety Office receives a report that there may be an issue with stability control programming within our factories and a formal investigation is opened. PSRI Stability Control Programming 23-068 October 2, 2023 Findings from the investigation are reviewed by the Product Safety Evaluation Committee and the recommendation is that this be brought to Product Safety Committee as a potential product safety defect. October 9, 2023 The Product Safety Committee meets and decides that a product safety defect exists. October 14, 2023 573 Report filed with NHTSA There have been no accidents or injuries related to this issue, there have been no warranty claims, field reports or customer complaints associated with this issue. Description of Remedy : Description of Remedy Program : Remedy program will be to program the ABS/ESP ECU with software which restores the functionality of the yaw sensor to the stability control program. Reimbursement for the recall will be covered by Manufacturer’s Reimbursement Plan on file with NHTSA. How Remedy Component Differs from Recalled Component : Remedy Component will be the update of software programming of the ABS/ESP ECU to restore functionality of yaw sensor enabling the stability control program to work. Control Unit, ABS-Advanced (ESP+) 23103633 Identify How/When Recall Condition was Corrected in Production : Programming tool was corrected in our factories on September 14, 2023. Part 573 Safety Recall Report 23V-691 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Recall Schedule : Description of Recall Schedule : Dealer notification will begin on October 19, 2023 and owner notification will begin on or before December 3, 2023 Planned Dealer Notification Date : OCT 19, 2023 – OCT 19, 2023 Planned Owner Notification Date : DEC 03, 2023 – DEC 03, 2023 * NR – Not Reported

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Date Number Release Page 11.2023 SC0450 01 1(3) Stability Control Programming AN, PI RECALL INFORMATION (November 2023) Mack Trucks has determined that a defect that relates to motor vehicle safety exists in certain 2024 Anthem and Pinnacle model vehicles manufactured from September 6th, 2023, through September 11th, 2023. The electronic stability control may be inoperative due to the lack of yaw sensor input as a result of a software programming error. In the event for stability control intervention, the vehicle may not have the ability to mitigate a loss of stability which may increase the risk of a crash. Mack Trucks has not received any field reports, warranty claims, or customer complaints associated with this safety issue; therefore, Mack considers this a proactive measure to protect the public and Mack’s customers from the potential risk associated with this defect. To ensure that these vehicles meet Mack’s rigorous quality requirements, follow the instructions outlined below to program the ABS/ESP ECU with software which restores the functionality of the yaw sensor to stability control program. VEHICLES AFFECTED Certain Mack manufactured between September 6th, 2023, and September 11th, 2023. VEHICLE QUANTITY There are 13 vehicles affected by this recall. (13 U.S.) SAFETY RECALL Mack Trucks Inc. Greensboro, NC USA Stability Control Programming Date 11.2023 Page 2 of 3 Parts N/A Repair Instructions 1. Secure Vehicle for Service. 2. Install wheel chocks. 3. Connect to the vehicle using Premium Tech Tool (PTT). 4. Using PTT run Operation 5931-07-03-20 under the Calibrate tab. This operation will program an updated PAR file into ABS module. 5. Remove wheel chocks. 6. Release vehicle from service. Important Note If you are experiencing issues running operation 5931-07-03-20 reference CBR- 2042 on how to set up Vendor Configuration Programing (VCP). Stability Control Programming Date 11.2023 Page 3 of 3 REIMBURSEMENT This repair is covered by an authorized Safety Recall. Reimbursement is obtained through the normal claim handling process. UCHP Reimbursement Claim Type (used only when uploading from the Dealer Business System) 40 Recall Status Vehicle repaired per instructions 1-Modified per instructions Labor Codes Primary Labor Code: 1700-22-03-11 Campaign Programming SRT 0.3 hrs. Causal Part 85101288 Authorization Number C0321 Note: Dealers are to perform Safety Recalls on all subject vehicles at no charge to the vehicle owner regardless of mileage, age of vehicle or ownership (original purchaser or subsequent purchasers). Whenever vehicles are subject to a Safety Recall are brought to your dealership for service, it is strongly recommended that every effort be made to perform the recall correction before the vehicle is released to the owner.

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This Notice applies to your vehicle, see enclosed “Notice of Vehicle Recall” DEAR MACK TRUCK OWNER: This notice is sent to you in accordance with the requirements of the National Traffic and Motor Vehicle Safety Act. Mack Trucks, Inc. has decided that a defect which relates to motor vehicle safety exists in certain 2024 Mack Anthem and Pinnacle model vehicles manufactured September 06, 2023 through September 11, 2023. SAFETY DEFECT: A software problem could cause the electronic stability control (ESC) system not to work. SAFETY RISK: An electronic stability control system that doesn’t work could increase the risk of a crash. There are no precautions you can take other than having your vehicle repaired by a Mack service center. Dealers will reprogram the electronic control unit. Recall repairs will be performed at no cost to you. The time required to repair your vehicle is approximately 0.5 hour. You should contact the nearest Mack Parts and Service Center and make an appointment. You can locate the closest Mack Parts and Service Center by going online to http://www.macktrucks.com/ and selecting “Dealer & Service Locations” or by calling our toll-free number: 1-800-866-1177. PRECAUTIONS YOU CAN TAKE: TIME REQUIRED FOR THE REPAIR: WHAT YOU SHOULD DO: SC0450_OWNER_LTR November 2023 IMPORTANT SAFETY RECALL SC0450 NHTSA RECALL # 23V-691 NOTICE REGARDING LEASED VEHICLES: If you are a Lessor of vehicles subject to this Notice, you have an obligation under Federal Law to provide a copy of this Notice to all Lessees within 10 days of your receipt of this Notice. Further, you must maintain a record, which identifies the Lessee(s) to whom you send a copy of this letter, the date you send this letter, and the Vehicle Identification Number(s) of the vehicle(s) that you have leased to that lessee. For purposes of this Notice, the term Lessor means: a person or entity that is the owner, as reflected on the vehicle’s title, of any five or more leased vehicles (as defined in CFR Section 577.4), as of the date of notification by the manufacturer of the existence of a safety- related defect or non-compliance with a Federal Motor Vehicle Safety Standard in one or more of the leased motor vehicles. OWNER RECALL RESPONSE CARD: The enclosed “Notice of Vehicle Recall” identifies your vehicle. If you no longer own the vehicle, please help us update our records by completing the “Vehicle Disposition Record” portion of the enclosed postage-free Notice of Mandatory Safety Campaign card and mailing it back to us. ASSISTANCE/ COMPLAINTS: PRE NOTIFICATION REMEDIES: If your vehicle has not been repaired within a reasonable time after delivering it to a Mack Parts and Service Center, please contact: Mack Trucks, Inc. North American Certification and Compliance P.O. Box 26115 Greensboro, NC 27402-6115 vtna.regulatoryaffairs@volvo.com You may also submit complaints to the Administrator of the National Highway Traffic Safety Administration (1200 New Jersey Avenue, S.E., Washington DC 20590 or call the toll-free Auto Safety Hot Line at 1-888- 327-4236 (TTY: 1-800-424-9153), or go to http://www.safercar.gov if you believe that Mack has failed to remedy the defect without charge, or has failed to remedy the vehicle within 60 days of the owners first tender to obtain repair following the earliest time that parts are available. If you have previously paid for repairs as a result of this issue, you may be entitled to recovery of those expenses. Submit copies of all documentation supporting your claim according to the rules specified in the “General Plan for Reimbursement of Pre- notification Remedies” provided in this mailing. We regret any inconvenience this may cause to your operation, but hope you will appreciate our sincere efforts to demonstrate Mack’s commitment to provide our customers with the best possible product. MACK TRUCKS, INC.

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