N222366070 Fuel Tank Rollover Valve Dislodged – 2022 Cadillac XT5, XT6, & GMC Acadia

Dealers will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing, free of charge. Owner notification letters were mailed July 27, 2022. Owners may contact Cadillac customer service at 1-800-458-8006 and GMC customer service at 1-800-462-8782. GM’s number for this recall is N222366070.

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Product Safety Recall N222366070 Fuel Tank Rollover Valve Dislodged Copyright 2022 General Motors. All Rights Reserved. Page 1 of 5 Release Date: July 2022 Revision: 01 Revision Description: This bulletin is being revised to add the customer letter. Please discard all previous copies of N222366070. Attention: 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. Vehicles involved in this recall were placed on stop delivery June 23, 2022. Once the service procedure contained in this bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer. All involved vehicles that are in dealer inventory must be held and not delivered to customers, dealer traded, or used for demonstration purposes until the repair contained in this bulletin has been performed on the vehicle. Make Model Model Year RPO Description From To Cadillac XT5 2022 2022 Cadillac XT6 GMC Acadia Involved vehicles are marked “open” on the Investigate Vehicle History screen in GM Global Warranty Management system. This site should always be checked to confirm vehicle involvement prior to beginning any required inspections and/or repairs. Condition General Motors has decided that a defect which relates to motor vehicle safety exists in certain 2022 model year Cadillac XT5, XT6, and GMC Acadia vehicles. The rollover valve in the fuel tank in some of these vehicles may not provide a proper seal in the event of a rollover crash. If the fuel tank rollover valve is missing, fuel may leak from the vehicle during certain types of rollover crashes. If a rollover crash were to occur, and if fuel were to leak and contact an ignition source, there is an increased risk of post-crash fire. Correction Dealers will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. Parts Quantity Part Name Part No. 1 Primary Fuel Pump Seal 22682111 2 Power Transfer/Takeoff Unit Retainer Clip 23432713 2 Power Transfer/Takeoff Unit O-Ring Seal 23321677 1 Gasket – Rear Wheel Drive Differential Carrier Housing 84386387 1 Aux Fuel Sender Seal 15776433 1 Fuel Tank Shell 85138841 It is estimated that only 4% of involved vehicles will require Fuel Tank Shell replacement. Please order parts accordingly. Reminder: Parts may be removed from Retail Inventory Management (RIM). Dealers should review the affected parts to confirm RIM managed status. Parts may have quantity limiters in effect. Warranty Information Labor Operation Description Labor Time Trans. Type Net Item 9106397 Inspect Rollover Vent Valve and reinstall Fuel Tank Acadia, XT5 XT6 2.1 2.2 ZFAT N/A 9106398 Inspect Rollover Vent Valve and replace Fuel Tank Acadia, XT5 XT6 2.2 2.5 Product Safety Recall N222366070 Fuel Tank Rollover Valve Dislodged Page 2 of 5 Service Procedure Important: Service Agents must comply with all International, Federal, State, Provincial, and/or Local laws applicable to the activities it performs under this bulletin, including but not limited to handling, deploying, preparing, classifying, packaging, marking, labeling, and shipping dangerous goods. In the event of a conflict between the procedures set forth in this bulletin and the laws that apply to your dealership, you must follow those applicable laws. 1. Remove the in-tank fuel pump. Refer to Fuel Tank Fuel Pump Module Replacement in SI. 6116184 2. Using a mirror, inspect the rollover vent valve (circled at top) to see if the valve is present. • If the valve IS present (green check mark) no further action is required. Replace the Primary Fuel Pump O-Ring Seal and reinstall the fuel pump module and tank. Refer to Fuel Tank Fuel Pump Module Replacement in SI. • If the valve IS NOT present (red X), OR appears to be dislodged, replace the fuel tank shell. Refer to Fuel Tank Replacement in SI. Dealer Responsibility – For USA & Export (USA States, Territories, and Possessions) 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. The US National Traffic and Motor Vehicle Safety Act provides that each vehicle that is subject to a recall of this type must be adequately repaired within a reasonable time after the customer has tendered it for repair. A failure to repair within sixty days after tender of a vehicle is prima facie evidence of failure to repair within a reasonable time. If the condition is not adequately repaired within a reasonable time, the customer may be entitled to an identical or reasonably equivalent vehicle at no charge or to a refund of the purchase price less a reasonable allowance for depreciation. To avoid having to provide these burdensome remedies, every effort must be made to promptly schedule an appointment with each customer and to repair their vehicle as soon as possible. In the recall notification letters, customers are told how to contact the US National Highway Traffic Safety Administration if the recall is not completed within a reasonable time. Product Safety Recall N222366070 Fuel Tank Rollover Valve Dislodged Page 3 of 5 Dealer Responsibility – All All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this recall must be held and inspected/repaired per the service procedure of this bulletin before customers take possession of these vehicles. Involved vehicles must be held and not delivered to customers, dealer-traded, released to auction, used for demonstration, or any other purpose. All GM Certified Used vehicles currently in the dealers’ inventory within the Certified Pre-Owned Inventory System (CPOIS) will be de-certified and must be held and remedied per the service procedure in this bulletin. Upon submitting an accepted/paid warranty transaction in the Global Warranty Management (GWM) system, the vehicle can be re-certified for sale within the CPOIS system, or once again be used in the CTP program. Dealers are to service all vehicles subject to this recall at no charge to customers, regardless of mileage, age of vehicle, or ownership, from this time forward. Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the dealer listing, are to be contacted by the dealer. Arrangements are to be made to make the required correction according to the instructions contained in this bulletin. A copy of the customer letter is provided in this bulletin for your use in contacting customers. Recall follow-up cards should not be used for this purpose, since the customer may not as yet have received the notification letter. In summary, whenever a vehicle subject to this field action enters your vehicle inventory you must take the steps necessary to ensure the program correction has been made before selling the vehicle. In addition, for vehicles entering your facility for service, you are required to ensure the customer is aware of the open field action and make every reasonable effort to implement the program correction as set forth in this bulletin prior to releasing the vehicle. Dealer Reports – For USA & Export For dealers with involved vehicles, a listing has been prepared and will be available through GM GlobalConnect Maxis Field Action Reports or sent directly to export dealers. The Inventory tab of the dealer reports will contain VINs that apply to this recall. This information is intended to assist dealers with the PROMPT COMPLETION of these vehicles. The Customer In-Service tab will contain customer names and addresses from Motor Vehicle Registration Records. The use of such motor vehicle registration data for any purpose other than follow-up necessary to complete this recall may be a violation of law in several states. Courtesy Transportation – For USA & Canada Courtesy transportation is available for customers whose vehicles are involved in a product program and still within the warranty coverage period. See General Motors Service Policies and Procedures Manual for courtesy transportation program details. Customer Notification USA & Canada – General Motors will notify customers of this recall on their vehicle (see copy of customer letter included with this bulletin). Export – Letters will be sent to known owners of record located within areas covered by the US National Traffic and Motor Vehicle Safety Act. For owners outside these areas, dealers should notify customers using the attached sample letter. GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the tools, equipment, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your dealer for information on whether your vehicle may benefit from the information. We Support Voluntary Technician Certification Product Safety Recall N222366070 Fuel Tank Rollover Valve Dislodged Page 4 of 5 IMPORTANT SAFETY RECALL July 2022 This notice applies to your vehicle, VIN: _____________________________________ Dear General Motors Customer: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2022 model year Cadillac XT5, XT6 and GMC Acadia vehicles. As a result, GM is conducting a safety recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products. IMPORTANT • Your vehicle is involved in GM safety recall N222366070. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? The rollover valve in the fuel tank in some of these vehicles may not provide a proper seal in the event of a rollover crash. If the fuel tank rollover valve is missing, fuel may leak from the vehicle during certain types of rollover crashes. If a rollover crash were to occur, and if fuel were to leak and contact an ignition source, there is an increased risk of post-crash fire. What will we do? Your GM dealer will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. This service will be performed for you at no charge. Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual inspection and service correction time of approximately 2 ½ hours. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Do you have questions? If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below. For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle. Division Number Text Telephones (TTY) Cadillac 1-800-333-4223 711 / 1-800-833-2438 GMC 1-800-462-8782 711 / 1-800-833-2438 Puerto Rico – English 1-866-467-9700 Puerto Rico – Español 1-866-467-9700 Virgin Islands 1-866-467-9700 If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.nhtsa.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V446. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Product Safety Recall N222366070 Fuel Tank Rollover Valve Dislodged Page 5 of 5 Regina A. Carto Vice President Global Product Safety and Systems GM Recall: N222366070

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IMPORTANT SAFETY RECALL July 2022 This notice applies to your vehicle, VIN: _____________________________________ Dear General Motors Customer: This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. General Motors has decided that a defect, which relates to motor vehicle safety, exists in certain 2022 model year Cadillac XT5, XT6 and GMC Acadia vehicles. As a result, GM is conducting a safety recall. We apologize for this inconvenience. However, we are concerned about your safety and continued satisfaction with our products. IMPORTANT • Your vehicle is involved in GM safety recall N222366070. • Schedule an appointment with your GM dealer. • This service will be performed for you at no charge. Why is your vehicle being recalled? The rollover valve in the fuel tank in some of these vehicles may not provide a proper seal in the event of a rollover crash. If the fuel tank rollover valve is missing, fuel may leak from the vehicle during certain types of rollover crashes. If a rollover crash were to occur, and if fuel were to leak and contact an ignition source, there is an increased risk of post-crash fire. What will we do? Your GM dealer will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. This service will be performed for you at no charge. Because of service scheduling requirements, it is likely that your dealer will need your vehicle longer than the actual inspection and service correction time of approximately 2 ½ hours. What should you do? You should contact your GM dealer to arrange a service appointment as soon as possible. Do you have questions? If you have any questions or concerns that your dealer is unable to resolve, please contact the appropriate Customer Assistance Center at the number listed below. For the hearing or speech impaired, please contact our Customer Assistance Center using the Telecommunication Relay Service by dialing 711 then providing the appropriate Customer Assistance Center number for your vehicle. Division Number Text Telephones (TTY) Cadillac 1-800-333-4223 711 / 1-800-833-2438 GMC 1-800-462-8782 711 / 1-800-833-2438 Puerto Rico – English 1-866-467-9700 Puerto Rico – Español 1-866-467-9700 Virgin Islands 1-866-467-9700 If after contacting your dealer and the Customer Assistance Center, you are still not satisfied we have done our best to remedy this condition without charge and within a reasonable time, you may wish to write the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, SE, Washington, DC 20590, or call the toll-free Vehicle Safety Hotline at 1.888.327.4236 (TTY 1.800.424.9153), or go to http://www.nhtsa.gov. The National Highway Traffic Safety Administration Campaign ID Number for this recall is 22V446. Federal regulation requires that any vehicle lessor receiving this recall notice must forward a copy of this notice to the lessee within ten days. Regina A. Carto Vice President Global Product Safety and Systems GM Recall: N222366070

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6203 URGENT – DISTRIBUTE IMMEDIATELY Date: June 30, 2022 Subject: N222366070 – Safety Recall Fuel Tank Rollover Valve Dislodged Models: 2022 Cadillac XT5 2022 Cadillac XT6 2022 GMC Acadia To: All General Motors Dealers General Motors is releasing Safety Recall N222366070 today. The total number of U.S. vehicles involved is approximately 228. Please see the attached bulletin for details. Vehicles involved in this recall were placed on stop delivery June 23, 2022. Once the service procedure contained in the bulletin has been performed on the vehicle, the vehicle is released from stop delivery and the vehicle can be delivered to the customer. Question and Answer Document (Q&A) 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. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated June 30, 2022. A list of involved vehicles in dealer new inventory is attached to this message. Please hold all warranty transactions until IVH has been updated. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6195 URGENT – DISTRIBUTE IMMEDIATELY Date: June 23, 2022 Subject: Stop Delivery Order for Upcoming Safety Recall N222366070 Models: 2022 Cadillac XT5 2022 Cadillac XT6 2022 GMC Acadia To: All General Motors Dealers STOP DELIVERY ORDER Effective immediately, stop the delivery of certain 2022 model year Cadillac XT5, Cadillac XT6 and GMC Acadia vehicles in new or used vehicle inventory. General Motors has notified the National Highway Traffic Safety Administration (NHTSA) about an upcoming safety recall that involves these vehicles. The GM recall number is N222366070. 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. The rollover valve in the fuel tank in some of these vehicles may not provide a proper seal in the event of a rollover crash. If the fuel tank rollover valve is missing, fuel may leak from the vehicle during certain types of rollover crashes. If a rollover crash were to occur, and if fuel were to leak and contact an ignition source, there is an increased risk of post-crash fire. To correct this condition, dealers will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. 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 upcoming recall. This action has been taken to assist dealers with determining which vehicles are involved so they can properly respond to customer inquiries. A list of involved vehicles that have been identified as being in dealer new vehicle inventory is attached to this message. It is sorted by dealer Business Associate Code (BAC) for easy reference. Your dealership’s BAC will not be listed if none of the involved vehicles are currently in your new vehicle inventory. 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. Question and Answer Document (Q&A) 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 “N/A” under Release Date and “Incomplete – Remedy not yet 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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GLOBAL SAFETY FIELD INVESTIGATIONS DCS6217 URGENT – DISTRIBUTE IMMEDIATELY Date: July 18, 2022 Subject: REVISION: N222366070 – Safety Recall Fuel Tank Rollover Valve Dislodged Customer Letter Added Models: 2022 Cadillac XT5 2022 Cadillac XT6 2022 GMC Acadia To: All General Motors Dealers Bulletin N222366070-01 has been revised to include a copy of the customer notification letter. Please discard all copies of bulletin N222366070. Customer Letter Mailing The customer letter mailing will begin on July 27, 2022. END OF MESSAGE GLOBAL SAFETY FIELD INVESTIGATIONS

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 22V-446 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : General Motors, LLC Submission Date : JUN 23, 2022 NHTSA Recall No. : 22V-446 Manufacturer Recall No. : N222366070 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 : 228 Estimated percentage with defect : 4 % Vehicle Information : Vehicle 1 : 2022-2022 Cadillac XT6 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to determine the affected population. This recall involves only all-wheel drive (AWD) models. Front-wheel drive (FWD) models are not affected. Vehicles produced with fuel tanks outside of GM’s suspect window and vehicles addressed prior to shipment are not included in this recall. There are 29 Cadillac XT6 vehicles included in this recall. Production Dates : MAR 16, 2022 – MAR 21, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Vehicle 2 : 2022-2022 GMC Acadia Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to determine the affected population. This recall involves only all-wheel drive (AWD) models. Front-wheel drive (FWD) models are not affected. Vehicles produced with fuel tanks outside of GM’s suspect window and vehicles addressed prior to shipment are not included in this recall. There are 135 GMC Acadia vehicles included in this recall. Production Dates : MAR 16, 2022 – MAR 21, 2022 VIN Range 1 : Begin : NR End : NR Not sequential Part 573 Safety Recall Report 22V-446 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2022-2022 Cadillac XT5 Vehicle Type : Body Style : Power Train : NR Descriptive Information : Manufacturing records were used to determine the affected population. This recall involves only all-wheel drive (AWD) models. Front-wheel drive (FWD) models are not affected. Vehicles produced with fuel tanks outside of GM’s suspect window and vehicles addressed prior to shipment are not included in this recall. There are 64 Cadillac XT5 vehicles included in this recall. Production Dates : MAR 16, 2022 – MAR 21, 2022 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 2022 model year Cadillac XT5, XT6, and GMC Acadia vehicles. The rollover valve in the fuel tank in some of these vehicles may not provide a proper seal in the event of a rollover crash. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : If the fuel tank rollover valve is missing, fuel may leak from the vehicle during certain types of rollover crashes. If a rollover crash were to occur, and if fuel were to leak and contact an ignition source, there is an increased risk of postcrash fire. Description of the Cause : While performing a procedure to evaluate the integrity of a fuel pump connection internal to the tank, operators in GM’s assembly plant may have inadvertently dislodged a portion of the rollover valve assembly. Identification of Any Warning that can Occur : NR Involved Components : Component Name 1 : TANK ASM-FUEL Component Description : Fuel Tank Assembly Component Part Number : 84724303 Part 573 Safety Recall Report 22V-446 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Supplier Identification : Component Manufacturer Name : NR Address : NR NR Country : NR Chronology : On March 22, 2022, a worker at GM’s Spring Hill assembly plant submitted an issue to GM’s Speak Up For Safety (SUFS) program following discovery of a dislodged fuel tank rollover valve in a vehicle. Personnel at the plant determined that the issue was caused while performing a procedure to evaluate the integrity of a fuel pump connection inside the tank. Containment efforts were initiated at the plant, and 31 of the 708 contained vehicles were found to have the dislodged-valve condition. GM opened a formal investigation on May 10, 2022. GM’s investigator confirmed that 298 vehicles may have been shipped from GM’s assembly plant with this condition, of which 228 are in the US. Between June 6 and 8, 2020, GM conducted laboratory tests to assess this condition’s potential to cause a fuel leak in various roll positions. GM determined that, when left in certain roll positions for an extended period of time (approximately 17 minutes), a dislodged valve could allow fluid to leak. GM’s review of field data did not identify any relevant field claims related to this condition. On June 16, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a safety recall. Description of Remedy : Description of Remedy Program : Dealers will inspect the fuel tank and replace the fuel tank shell if the rollover valve is found to be dislodged or missing. Pursuant to 49 C.F.R. § 573.13(d)(1), all covered vehicles are under warranty, so reimbursement is not offered. How Remedy Component Differs from Recalled Component : Fuel tank rollover valves are not dislodged. Identify How/When Recall Condition was Corrected in Production : Containment efforts were initiated on March 21, 2022. Vehicles produced after this date were not subject to the same fuel pump connect check procedure or were inspected and addressed prior to shipment. Recall Schedule : Description of Recall Schedule : Dealers will be notified on June 23, 2022. GM estimates owner notification will begin on August 8, 2022. Part 573 Safety Recall Report 22V-446 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Planned Dealer Notification Date : JUN 23, 2022 – JUN 23, 2022 Planned Owner Notification Date : AUG 08, 2022 – AUG 08, 2022 * NR – Not Reported

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