N222383781 High Voltage Connector Fasteners Improperly Torqued – 2018-2022 Chevrolet Bolt EV & Bolt EUV

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Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Copyright 2022 General Motors. All Rights Reserved. Page 1 of 6 Release Date: October 2022 Revision: 00 Attention: This field action must only be completed by Chevrolet EV certified dealers who have met all Bolt field action-specific training, tool and equipment requirements, and repairs must be performed by a technician who has successfully completed the required training. This program is in effect until November 30, 2024. Make Model Model Year From To RPO Description Chevrolet Bolt EV 2018 2018 2022 2022 Bolt EUV 2022 2022 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 On certain 2018, 2022 Chevrolet Bolt EV, and 2022 Bolt EUV vehicles may have a condition in which several fasteners internal and external of the high voltage battery pack may not have been torqued to specification. Correction Dealers will secure all suspect connections to the appropriate torque specification. Parts Quantity Part Name Part No. 2 COOLANT ENGINE (50/50 Mix) 12378390 US 10953456 CA 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 9106490 Tighten nuts and bolts to specification (includes smoke test, high voltage discharge/charge, and coolant fill) 4.4 ZFAT N/A Service Procedure Danger: Carefully read this entire bulletin before beginning the remedy procedure. Failure to follow the procedures may result in serious injury or death. Always perform the High Voltage Disabling procedure prior to servicing any High Voltage component or connection. Personal Protection Equipment (PPE) and proper procedures must be followed. The High Voltage Disabling procedure includes the following steps: • Identify how to disable high voltage. • Identify how to test for the presence of high voltage. • Identify condition under which high voltage is always present and personal protection equipment (PPE) and proper procedures must be followed. Before working on any high voltage system, be sure to wear the following Personal Protection Equipment: • Safety glasses with appropriate side shields when within 15 meters (50 feet) of the vehicle, either indoors or outdoors. • Certified and up-to-date Class “0” Insulation gloves rated at 1000V with leather protectors. o Visually and functionally inspect the gloves before use. o Wear the Insulation gloves with leather protectors at all times when working with the high voltage battery assembly, whether the system is energized or not. Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Page 2 of 6 Danger: The High Voltage Disable Procedure, regardless of the method, only de-energizes the high voltage circuits and components outside of the Hybrid/EV battery pack, dangerous voltage levels always exist within the Hybrid/EV battery pack. 1. Remove the drive motor battery. Refer to Drive Motor Battery Replacement and Shipping Preparation in SI. 4504488 2. Tighten the 4 High Voltage Battery X3 Connector Black Bolts (1) to 9 Nm (80 lb in). Danger: Improper High Voltage (HF) Bus Bar Location during battery reassembly may result in section shorting. Arcing may occur when shorted, resulting in molten metal splattering and arc-flashing hazards. To reduce the risk of death, personal injury, and/or high voltage battery damage, identify the existing location of HV Bus Bars prior to disassembly and reinstall only in the proper location. 3. Ensure the proper procedures for the battery cable – bus bars are followed once the battery upper cover is removed. Refer to Hybrid/EV Battery Cable Bus Bar Orientation Verification in SI. Note: Inspect the Battery Cover Seal for damage, replace if necessary. 4. Remove the Battery Upper Cover. Refer to Battery Upper Cover Replacement in SI. 4505424 5. Remove the 3 High Voltage Disconnect Relay Cover Bolts (1). Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Page 3 of 6 6. Remove the High Voltage Battery Disconnect Relay Cover (2). 6166171 7. Remove the Busbar Cover (1). 6166173 8. Tighten the 6 nuts (1) to 9 Nm (80 lb in). 9. Tighten the 3 bolts (2) to 9 Nm (80 lb in). Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Page 4 of 6 6166171 10. Install the Busbar Cover (1). 4505424 11. Install the High Voltage Battery Disconnect Relay Cover (2). 12. Install and tighten the 3 High Voltage Disconnect Relay Cover Bolts (1) to 4.5 Nm (40 lb in). Note: Be sure to perform the rechargeable energy storage system smoke test highlighted in the Battery Upper Cover Replacement procedure. 13. Install the Battery Upper Cover. Refer to Battery Upper Cover Replacement in SI. 14. Install the Drive Motor Battery. Refer to Drive Motor Battery Replacement and Shipping Preparation in SI. Dealer Responsibility All new, used, GM Certified Used, courtesy transportation vehicles, dealer shuttle vehicles, etc. in dealers’ possession and subject to this program 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, dealertraded, released to auction, used for demonstration, or any other purpose. Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Page 5 of 6 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 program at no charge to customers, regardless of mileage, age of vehicle, or ownership, through November 30, 2024. Customers who have recently purchased vehicles sold from your vehicle inventory, and for which there is no customer information indicated on the involved vehicle 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. Program followup 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 program enters your vehicle inventory or is in your facility for service through November 30, 2024, you must take the steps necessary to be sure the program correction has been made before selling or 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 field action. 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 field action may be a violation of law in several states. Courtesy Transportation – For USA 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 – General Motors will notify customers of this program on their vehicle (see copy of customer letter included with this bulletin. 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 Customer Satisfaction Program N222383781 High Voltage Connector Fasteners Improperly Torqued Page 6 of 6 November 2022 This notice applies to your vehicle, VIN: ________________________________ Dear General Motors Customer: We have learned certain 2018, 2022 Chevrolet Bolt EV, and 2022 Bolt EUV vehicles may have a condition in which several fasteners internal and external of the high voltage battery pack may not have been torqued to specification. Your satisfaction with your Bolt EV/Bolt EUV is very important to us, so we are announcing a program to prevent this condition or, if it has occurred, to fix it. What We Will Do: Your GM dealer will secure all suspect connections to the appropriate torque specification. This service will be performed for you at no charge until November 30, 2024. After that, any applicable warranty will apply. What You Should Do: To limit any possible inconvenience, we recommend that you contact your dealer as soon as possible to schedule an appointment for this repair. When scheduling your appointment, confirm with the dealer that they are an EV certified dealer. 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. We truly appreciate you taking the time to remedy your vehicle as we know your time is valuable. We want you to know that we will do our best, throughout your ownership experience, to ensure that your GM vehicle provides you many miles of enjoyable driving. Neelie O’Connor Global Executive Director Customer Experience Operations N222383781 GLOBAL SAFETY FIELD INVESTIGATIONS DCS6316 URGENT – DISTRIBUTE IMMEDIATELY Date: October 19, 2022 Subject: N222383781 – Customer Satisfaction Program High Voltage Connector Fasteners Improperly Torqued Models: 2018, 2022 Chevrolet Bolt EV, 2022 Chevrolet Bolt EUV To: All General Motors Dealers General Motors is releasing Customer Satisfaction Program N222383781 today. The total number of U.S. vehicles involved is approximately 7. Please see the attached bulletin for details. Customer Letter Mailing The customer letter mailing will begin in November, 2022. Global Warranty Management (GWM) The Required Field Action section on the Investigate Vehicle History (IVH) screen will be updated October 19, 2022. A list of vehicles in dealer 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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