CR5507 – Inoperative Turn Signals – 2021-2023 Nova Bus LFS Transit Buses

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-762 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Nova Bus (US) Inc. Submission Date : NOV 11, 2023 NHTSA Recall No. : 23V-762 Manufacturer Recall No. : CR5507 Manufacturer Information : Manufacturer Name : Nova Bus (US) Inc. Address : 260 Banker Road PLATTSBURGH NY 12901 Company phone : 450-472-6410 Population : Number of potentially involved : 718 Estimated percentage with defect : 8 % Vehicle Information : Vehicle 1 : 2021-2023 Nova LFS Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The recall population is defined by vehicles built from April 30, 2021 through August 31, 2023 equipped with a directional foot switch (turn signal). Production Dates : APR 30, 2021 – AUG 31, 2023 VIN Range 1 : Begin : 4RKYL82L5M977797 End : 4RKYL82J7N9778645 ✔ Not sequential Description of Defect : Description of the Defect : The turn signals may intermittently become inoperative. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A nonfunctioning exterior turn signal may not notify other drivers of a turning vehicle, increasing the risk of a crash. Description of the Cause : Insufficient crimp force in the splice block of the switch. Identification of Any Warning that can Occur : There is no warning prior to occurrence. Involved Components : Part 573 Safety Recall Report 23V-762 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : SWITCH Component Description : DIRECTIONAL FOOT Component Part Number : N39406 Supplier Identification : Component Manufacturer Name : Transtech Innovations Address : NR NR Country : NR Chronology : May 22, 2023: Nova Bus is informed of an elevated fault frequency. June 10, 2023: Nova Bus opens a formal investigation. September 6, 2023: The issue was raised to the safety forum as a potential risk for evaluation. September 14, 2023: Nova Bus opens a formal potential safety related issue investigation. October 5, 2023: The information gathered during the investigation is reviewed and raised to decision forum. October 19, 2023: The decision forum requested review of information provided. November 6, 2023: Product Safety Committee determination of product defect. November 11, 2023: Nova Bus files 573 with NHTSA that a voluntary recall will be released to address the safety-related defect. There have been no accidents or injuries related to this defect. Warranty experience with one customer shows a failure rate of 8 percent. Description of Remedy : Description of Remedy Program : Remedy program will be to perform an inspection of the directional foot switch pigtail and repair any splice blocks found with insufficient crimping. All costs associated with this corrective measure will be covered by Nova Bus. Pre-notification remedies will be addressed using the Nova Bus general reimbursement plan on file with NHTSA. How Remedy Component Differs from Recalled Component : Remedy component will have sufficient crimp force for proper electrical connection. N39406 DIRECTIONAL FOOT SWITCH Part 573 Safety Recall Report 23V-762 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : An internal campaign was launched to correct vehicles in production November 7, 2023. Recall Schedule : Description of Recall Schedule : Note: Nova Bus does not have a dealer network and the dates entered for the planned dealer notification begin/end date are only to avoid NHTSA Recall Portal error while submitting the recall report. Owner notification will begin on or before December 20, 2023 Planned Dealer Notification Date : NOV 15, 2023 – NOV 15, 2023 Planned Owner Notification Date : DEC 20, 2023 – DEC 20, 2023 * NR – Not Reported

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-762 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Nova Bus (US) Inc. Submission Date : NOV 18, 2023 NHTSA Recall No. : 23V-762 Manufacturer Recall No. : CR5507 Manufacturer Information : Manufacturer Name : Nova Bus (US) Inc. Address : 260 Banker Road PLATTSBURGH NY 12901 Company phone : 450-472-6410 Population : Number of potentially involved : 718 Estimated percentage with defect : 8 % Vehicle Information : Vehicle 1 : 2021-2023 Nova LFS Vehicle Type : BUSES, MEDIUM & HEAVY VEHICLES Body Style : OTHER Power Train : DIESEL Descriptive Information : The recall population is defined by vehicles built from April 30, 2021 through August 31, 2023 equipped with a directional foot switch (turn signal). Production Dates : APR 30, 2021 – AUG 31, 2023 VIN Range 1 : Begin : 4RKYL82L5M977797 End : 4RKYL82J7N9778645 ✔ Not sequential Description of Defect : Description of the Defect : The turn signals may intermittently become inoperative. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : A nonfunctioning exterior turn signal may not notify other drivers of a turning vehicle, increasing the risk of a crash. Description of the Cause : Insufficient crimp force in the splice block of the switch. Identification of Any Warning that can Occur : There is no warning prior to occurrence. Involved Components : Part 573 Safety Recall Report 23V-762 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : SWITCH Component Description : DIRECTIONAL FOOT Component Part Number : N39406 Supplier Identification : Component Manufacturer Name : Transtech Innovations Address : 936 Lionel-Boulet Blvd Varennes, Quebec Foreign States J3X 1P7 Country : Canada Chronology : May 22, 2023: Nova Bus is informed of an elevated fault frequency. June 10, 2023: Nova Bus opens a formal investigation. September 6, 2023: The issue was raised to the safety forum as a potential risk for evaluation. September 14, 2023: Nova Bus opens a formal potential safety related issue investigation. October 5, 2023: The information gathered during the investigation is reviewed and raised to decision forum. October 19, 2023: The decision forum requested review of information provided. November 6, 2023: Product Safety Committee determination of product defect. November 11, 2023: Nova Bus files 573 with NHTSA that a voluntary recall will be released to address the safety-related defect. There have been no accidents or injuries related to this defect. Warranty experience with one customer shows a failure rate of 8 percent. There has been a total of 28 warranty claims associated with this defect. Description of Remedy : Description of Remedy Program : Remedy program will be to perform an inspection of the directional foot switch pigtail and repair any splice blocks found with insufficient crimping. All costs associated with this corrective measure will be covered by Nova Bus. Pre-notification remedies will be addressed using the Nova Bus general reimbursement plan on file with NHTSA. How Remedy Component Differs from Recalled Component : Remedy component will have sufficient crimp force for proper electrical connection. N39406 DIRECTIONAL FOOT SWITCH Part 573 Safety Recall Report 23V-762 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Identify How/When Recall Condition was Corrected in Production : An internal campaign was launched to correct vehicles in production November 7, 2023. Recall Schedule : Description of Recall Schedule : Note: Nova Bus does not have a dealer network and the dates entered for the planned dealer notification begin/end date are only to avoid NHTSA Recall Portal error while submitting the recall report. Owner notification will begin on or before December 20, 2023 Planned Dealer Notification Date : NOV 15, 2023 – NOV 15, 2023 Planned Owner Notification Date : DEC 20, 2023 – DEC 20, 2023 * NR – Not Reported

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