N232404980 Driver’s Air Bag Inflator May Explode – 2014-2017 Buick Enclave, Chevrolet Traverse, & GMC Acadia

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-334 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : MAY 10, 2023 NHTSA Recall No. : 23V-334 Manufacturer Recall No. : N232404980 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 994,763 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2014-2017 Buick Enclave Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recalls 21V782 or 22V246 are not included in this recall. There are 244,304 Buick Enclave vehicles affected by this recall. Production Dates : MAR 26, 2013 – MAY 12, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-334 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2014-2017 Chevrolet Traverse Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recalls 21V782 or 22V246 are not included in this recall. There are 457,316 Chevrolet Traverse vehicles affected by this recall. Production Dates : MAR 26, 2014 – MAY 12, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2014-2017 GMC Acadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recall 22V246 are not included in this recall. There are 293,143 GMC Acadia vehicles affected by this recall. Production Dates : MAR 26, 2014 – MAR 29, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2014-2017 model year Buick Enclave, Chevrolet Traverse, and GMC Acadia vehicles. In these vehicles, the front-driver airbag inflator may contain a supplier manufacturing defect that may result in inflator rupture during deployment. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : An inflator rupture may cause metal fragments to pass through the airbag and into the vehicle interior, which may result in injury or death to vehicle occupants. Part 573 Safety Recall Report 23V-334 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : GM is continuing its investigation into this incident. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : AIRBAG ASM-STRG WHL Component Description : Driver Front Airbag Module Component Part Number : NR Supplier Identification : Component Manufacturer Name : ARC Automotive Inc. Address : 1729 Midpark Rd D. Knoxville Tennessee 37921 Country : United States Chronology : On March 24, 2023, GM received an allegation that a 2017 model year Chevrolet Traverse was in a crash and that the front-driver airbag inflator ruptured during deployment. GM and NHTSA were provided an opportunity to inspect the vehicle on April 25, 2023. The inspection confirmed that the front driver airbag inflator in the subject vehicle ruptured during deployment. GM is aware of two prior ruptures (allegations received: September 2, 2021 and February 18, 2022) of ARC-manufactured airbag inflators in 2015 model year Chevrolet Traverse vehicles, and GM conducted NHTSA Recalls 21V782 and 22V246 on the inflator production lots involved in these incidents. All three rupture events in Chevrolet Traverse vehicles involved the same inflator variant (MC). In 2022, to assist GM in its investigation, GM retained an independent third-party engineering firm with nationally respected engineering expertise in airbag-inflator performance. The reason for these inflator ruptures remains unknown. GM and the independent engineering firm are continuing to investigate these rupture incidents and GM has kept NHTSA informed of the progress of this investigation as the work proceeds. On May 7, 2023, and out of an abundance of caution, GM’s Safety and Field Action Decision Authority decided to expand Recalls 21V782 and 22V246 to all front-driver airbag modules containing an ARC “MC” variant inflator that were installed as original equipment in 2014-2017 model year Chevrolet Traverse, Buick Enclave and GMC Part 573 Safety Recall Report 23V-334 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Acadia vehicles. Description of Remedy : Description of Remedy Program : Dealers will replace the front-driver airbag module. Pursuant to 577.11, General Motors does not plan to provide notice about reimbursement to owners because owners would not have been aware of the issue prior to this recall. How Remedy Component Differs from Recalled Component : The remedy component does not contain an inflator that was manufactured in the suspect time period. Identify How/When Recall Condition was Corrected in Production : NR Recall Schedule : Description of Recall Schedule : Dealers will be notified on May 10, 2023. Interim owner notification is estimated to begin on June 25, 2023. GM will provide an estimate for owner notification of an available remedy when one is available. Planned Dealer Notification Date : MAY 10, 2023 – MAY 10, 2023 Planned Owner Notification Date : JUN 26, 2023 – JUN 26, 2023 * NR – Not Reported

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Reference Number: GCUS-3-2929 Stop Delivery Order for Safety Recall N232404980 – Driver Front Airbag Inflator May Rupture GLOBAL SAFETY FIELD INVESTIGATIONS DCS6563 URGENT – DISTRIBUTE IMMEDIATELY Date: May 10, 2023 Subject: Stop Delivery Order for Safety Recall N232404980 Driver Front Airbag Inflator May Rupture Models: 2014 – 2017 Buick Enclave 2014 – 2017 Chevrolet Traverse 2017 – 2017 GMC Acadia To: All General Motors Dealers STOP DELIVERY ORDER Effective immediately, stop the delivery of certain 2014 – 2017 model year Buick Enclave, Chevrolet Traverse and GMC Acadia vehicles in used vehicle inventory. General Motors has notified the National Highway Traffic Safety Administration (NHTSA) about a safety recall that involves these vehicles. The GM recall number is N232404980. 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 until the defect is remedied. In these vehicles, the front-driver airbag inflator may contain a supplier manufacturing defect that may result in inflator rupture during deployment. An inflator rupture may cause metal fragments to pass through the airbag and into the vehicle interior, which may result in injury or death to vehicle occupants. Parts are not currently available, but when parts are available, dealers are to replace the front-driver airbag module. Until further instructions are received, involved vehicles that are in dealers’ possession (new or used vehicle inventory, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc.) must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration purposes or any other dealer use. All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified. The Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system has been updated for this recall. This action has been taken to assist dealers with determining which vehicles are involved so they can properly respond to customer inquiries. To identify involved vehicles in dealer used inventory, run an Open VIN Report or Field Action Initiation Report using Field Action Reports-GFAM within the Maxis Dealer Application in GlobalConnect. Frequently Asked Questions Document (FAQs) Attached to this message you will find a document that addresses the ten most likely questions customers may have regarding this Safety Recall. Please use this information as an aid to confidently answer customer concerns. Until the recall bulletin is released, the Investigate Vehicle History (IVH) screen in the Global Warranty Management (GWM) system will display “05/10/2023” under Release Date and “Incomplete – Remedy Not Available” under Status. This means the required repair is not yet available and dealers should not attempt to perform any repairs. We are working with the supplier to obtain the required parts as quickly as possible. When a sufficient quantity of parts are available, the recall bulletin will be released and dealers can begin repairing vehicles. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-334 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : MAY 10, 2023 NHTSA Recall No. : 23V-334 Manufacturer Recall No. : N232404980 Manufacturer Information : Manufacturer Name : General Motors, LLC Address : 29427 Louis Chevrolet Road MAIL CODE 480-210-2V WARREN MI 48093 Company phone : 586-596-1733 Population : Number of potentially involved : 994,763 Estimated percentage with defect : 1 % Vehicle Information : Vehicle 1 : 2014-2017 Buick Enclave Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recalls 21V782 or 22V246 are not included in this recall. There are 244,304 Buick Enclave vehicles affected by this recall. Production Dates : MAR 26, 2013 – MAY 12, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 23V-334 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 2 : 2014-2017 Chevrolet Traverse Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recalls 21V782 or 22V246 are not included in this recall. There are 457,316 Chevrolet Traverse vehicles affected by this recall. Production Dates : MAR 26, 2014 – MAY 12, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 3 : 2014-2017 GMC Acadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to identify vehicles that may have received a suspect airbag inflator. Vehicles that were included in recall 22V246 are not included in this recall. There are 293,143 GMC Acadia vehicles affected by this recall. Production Dates : MAR 26, 2014 – MAR 29, 2017 VIN Range 1 : Begin : NR End : NR Not sequential Description of Defect : Description of the Defect : General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2014-2017 model year Buick Enclave, Chevrolet Traverse, and GMC Acadia vehicles. In these vehicles, the front-driver airbag inflator may contain a supplier manufacturing defect that may result in inflator rupture during deployment. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : An inflator rupture may cause metal fragments to pass through the airbag and into the vehicle interior, which may result in injury or death to vehicle occupants. Part 573 Safety Recall Report 23V-334 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Description of the Cause : GM is continuing its investigation into this incident. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : AIRBAG ASM-STRG WHL Component Description : Driver Front Airbag Module Component Part Number : NR Supplier Identification : Component Manufacturer Name : ARC Automotive Inc. Address : 1729 Midpark Rd D. Knoxville Tennessee 37921 Country : United States Chronology : On March 24, 2023, GM received an allegation that a 2017 model year Chevrolet Traverse was in a crash and that the front-driver airbag inflator ruptured during deployment. GM and NHTSA were provided an opportunity to inspect the vehicle on April 25, 2023. The inspection confirmed that the front driver airbag inflator in the subject vehicle ruptured during deployment. GM is aware of two prior ruptures (allegations received: September 2, 2021 and February 18, 2022) of ARC-manufactured airbag inflators in 2015 model year Chevrolet Traverse vehicles, and GM conducted NHTSA Recalls 21V782 and 22V246 on the inflator production lots involved in these incidents. All three rupture events in Chevrolet Traverse vehicles involved the same inflator variant (MC). In 2022, to assist GM in its investigation, GM retained an independent third-party engineering firm with nationally respected engineering expertise in airbag-inflator performance. The reason for these inflator ruptures remains unknown. GM and the independent engineering firm are continuing to investigate these rupture incidents and GM has kept NHTSA informed of the progress of this investigation as the work proceeds. On May 7, 2023, and out of an abundance of caution, GM’s Safety and Field Action Decision Authority decided to expand Recalls 21V782 and 22V246 to all front-driver airbag modules containing an ARC “MC” variant inflator that were installed as original equipment in 2014-2017 model year Chevrolet Traverse, Buick Enclave and GMC Part 573 Safety Recall Report 23V-334 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Acadia vehicles. Description of Remedy : Description of Remedy Program : Dealers will replace the front-driver airbag module. Pursuant to 577.11, General Motors does not plan to provide notice about reimbursement to owners because owners would not have been aware of the issue prior to this recall. How Remedy Component Differs from Recalled Component : The remedy component does not contain an inflator that was manufactured in the suspect time period. Identify How/When Recall Condition was Corrected in Production : NR Recall Schedule : Description of Recall Schedule : Dealers will be notified on May 10, 2023. Interim owner notification is estimated to begin on June 25, 2023. GM will provide an estimate for owner notification of an available remedy when one is available. Planned Dealer Notification Date : MAY 10, 2023 – MAY 10, 2023 Planned Owner Notification Date : JUN 26, 2023 – JUN 26, 2023 * NR – Not Reported

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