FL980 – Driveshaft May Break – 2023-2024 Thomas Built Bus SAF-T-Liner C2 School Buses

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-538 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Daimler Trucks North America, LLC Submission Date : AUG 01, 2023 NHTSA Recall No. : 23V-538 Manufacturer Recall No. : FL980 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 : 614 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2023-2024 Thomas Built Bus SAF-T-LINER C2 Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : Certain trucks built with drive shafts manufactured with components supplied by Dana with non-conforming material from two specific production lots. Production Dates : SEP 09, 2022 – OCT 10, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : From the suppliers defect report, “supplier’s use of non-conforming material in its production processes, the specified drive shafts do not meet specification and can break in certain high loading conditions”. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : From supplier defect report, “in the event a driveshaft breaks, it can separate from the vehicle, which could increase the risk of a crash”. Description of the Cause : Due to an error in the supplier’s production processes, non-conforming material was used to manufacture the specified driveshafts. Identification of Any Warning that can Occur : N/A Involved Components : Part 573 Safety Recall Report 23V-538 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : Drive Shaft Component Description : Drive Shaft Component Part Number : SPL 100 Supplier Identification : Component Manufacturer Name : Dana-Spicer Address : 3939 Technology Drive Maumee Ohio 43537 Country : United States Chronology : On July 26, 2023, DTNA received a copy of the Defect Information Report that Dana filed a recall for a certain lot of potentially defective drive shafts after completing an analysis of a single drive shaft failure in April of 2023. After reviewing preliminary information furnished from Dana, DTNA was able to match a suspect population range. On July 31, 2023, DTNA decided to file a vehicle companion recall to support Dana’s recall for this issue. DTNA is not aware of any accidents or injuries related to this issue. DTNA anticipates the recall population may be adjusted after receiving additional information from Dana cross-referencing part serial number to truck VINs. DTNA found 1 total warranty claim related to this issue. Description of Remedy : Description of Remedy Program : Affected vehicle owners will receive a replacement drive shaft. DTNA is currently developing the repair strategy. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers. How Remedy Component Differs from Recalled Component : NR Identify How/When Recall Condition was Corrected in Production : Affected vehicle owners will receive a replacement drive shaft. DTNA is currently developing the repair strategy. Repairs will be performed free of charge by Daimler Truck North America authorized service facilities. Details of the reimbursement plan will be included in the owner’s notification letter. Owners are directed to seek reimbursement through authorized dealers. Part 573 Safety Recall Report 23V-538 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 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 30, 2023 – SEP 30, 2023 Planned Owner Notification Date : SEP 30, 2023 – SEP 30, 2023 * NR – Not Reported

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DATE: 08/21/2023 DRAFT My Communication SUBJECT: Stop Delivery Order: Safety Recall FL980 SAFETY RECALL NOTICE On August 1, 2023 Daimler Truck North America (“DTNA”) filed a Defect Information Report (“DIR”) with the National Highway Traffic Safety Administration (“NHTSA”) and/or a Defect Information Notice (“DIN”) with Transport Canada (“TC”) informing the agencies of our intent to conduct a voluntary safety recall. It is a violation of Federal law for a dealer to deliver a new motor vehicle or any new or used item of motor vehicle equipment (including a tire) covered by this notification under a sale or lease until the defect or noncompliance is remedied. Some of the vehicles subject to this “Stop Delivery Order” may be in your new vehicle inventory. Until further instructions are available, new vehicles subject to this “Stop Delivery Order” must be held and not be delivered to customers. DTNA strongly recommends that dealers and distributors remedy recalls before selling used vehicles. For any used vehicle with an open recall not remedied before sale, DTNA requires that the dealer or distributor notify prospective buyers of the open recall. Affected Vehicles in FL980: Make Model Model Yr. Start Model Yr. End Prod. Start Date Prod. End Date Freightliner M2 2023 2023 September 9, 2022 October 10, 2022 FCCC MT 55G Walk in Van Chassis 2023 2023 September 9, 2022 October 10, 2022 FCCC S2C 106 Conventional Cab & Chassis 2023 2023 September 21, 2022 October 10, 2022 FCCC MC Chassis 2023 2023 September 15, 2022 October 04, 2022 TBB SAF-T-LINER C2 (non-school bus) 2023 2023 September 16, 2022 October 10, 2022 TBB SAF-T-LINER C2 (school bus) 2023 2024 September 9, 2022 October 10, 2022 Problem: Due to the supplier’s use of non-conforming material in its production processes, the driveshaft’s do not meet specification and can break in certain high loading conditions leading to loss of motive force Solution: DTNA is preparing the remedy, which is currently under development. Owner Notification Mailing Schedule: Owner letters will be mailed prior to the Campaign’s activation, currently schedule is to be determined.

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