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Service bulletins for the 2021 Chevrolet Bolt EV

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

506 on file from NHTSA, as of 2026-10-19.

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By component

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
22-NA-2442024-05-30. Warranty extension. ELECTRICAL SYSTEM; EXTERIOR LIGHTING; STRUCTURE:BODY; UNKNOWN OR OTHER; SERVICE BRAKES. This service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
18-NA-2362024-05-24. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This bulletin provides information for dealers/technicians on the Lithium-Ion battery section and small pack exchange procedure.
24-NA-0352024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct the condition of Charge Limited to 80% After Reaching 10,000 km (6,213 miles) for Recall N212345944, N212345945 or N212345946.
23-NA-0642024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
13-08-116-001J2024-05-16. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
23-NA-1252024-05-16. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on Over The Air (OTA) and In Market Enhancement (IME) FAQs.
18-NA-2792024-05-15. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.
23-NA-0642024-05-02. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships.
20-NA-1322024-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
N242437530-012024-04-08. Service bulletin. ELECTRICAL SYSTEM. Service Update. Certain vehicles may have a condition in which a diagnostic trouble code (DTC) is set. IMPORTANT: If the vehicle comes in with the DTC U3620-U362E and U3630-U3636, with symptom 17 ALREADY set, go to SI and follow the published SI diagnostic/repair procedures. This field action DOES NOT apply to symptom 09. After above repairs are performed, come back to this field action to get the required warranty claim code and close this field action with labor operation 9107166. If the DTC is not set, proceed with this bulletin. Dealers are to reprogram the Hybrid Powertrain Control Module 2.
N2324324302024-04-05. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT; ELECTRICAL SYSTEM. Service Update Ended - This message is to inform dealers that Service Update N232432430 released on March 26, 2024 through GlobalConnect message GCUS-3-3188 has ended.
20-NA-1322024-04-05. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT. This warranty administration bulletin provides policy information on the requirements for 12V battery testing and warranty replacements.
10-08-45-001H2024-04-05. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information for electrical ground repairs using new General Motors replacement fasteners with conductive finish.
N2424375302024-04-03. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM. Service Update - Certain vehicles may have a condition in which a diagnostic trouble code (DTC), U3620-U362E or U3630-U3636, symptom 17, is triggered. This DTC is resulting in customers experiencing a Malfunction Indicator Lamp (MIL) illuminated in the Driver Information Center (DIC), Reduced Propulsion with corresponding DIC message, and a charging limited to 30% State of Charge. IMPORTANT: If the vehicle comes in with the DTC U3620-U362E or U3630-U3636, symptom 17 set, go to SI and follow the published SI diagnostic/repair procedures. After above repairs are performed, come back to this field action to get the required warranty claim code and close this field action with labor operation 9107166. If the DTC is not set, proceed with this bulletin. Dealers are to reprogram the Hybrid Powertrain Control Module 2.
22-NA-1512024-03-29. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides diagnostic and repair information for instances when DTC P0BBD may set.
N2324324302024-03-26. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM. Service Update - Certain vehicles may have a condition in which the internal mileage counter has been reset with a subsequent Hybrid/EV Powertrain Control Module 2 reprogramming event causing the HV Battery SOC to be limited to 80% beyond the required 6,213mi (10,000km). Dealers are to verify mileage, contact Techline and reprogram the Hybrid/EV Powertrain Control Module 2.
24-NA-0352024-03-19. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides a procedure to correct the condition of Charge Limited to 80% After Reaching 10,000 km (6,213 miles) for Recall N212345944 or N212345945.
21-NA-1482024-03-19. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; POWER TRAIN. This service bulletin provides diagnostic aid information for DTC P2797, P2798 or P0C2D for Transmission Fluid Pump Performance to correct a customer concern of a Propulsion Power is Reduced message on DIC combined with a Service Vehicle Soon MIL.
24-NA-0352024-03-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides a procedure to correct the condition of Charge Limited to 80% After Reaching 10,000 km (6,213 miles) for Recall N212345944 or N212345945.
22-NA-1192024-02-29. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. The service bulletin provides warranty information on High Voltage Battery Safety Recall Replacement Parts.
22-NA-1142024-02-29. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling.
22-NA-1512024-02-23. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides diagnostic and repair information for instances when DTC P0BBD may set.
18-NA-1802024-02-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
18-NA-1802024-02-17. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.
23-NA-1892024-02-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.