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

Bulletins, newest first
22-NA-2382022-12-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides diagnostic/repair information to correct a customer concern of Cellphone not Charging or USB Receptacle Inoperative.
PIE07292022-12-07. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to issues while charging on a public DC Fast charger or Level 2 AC charger.
18-NA-1802022-11-03. Service bulletin. ELECTRICAL SYSTEM. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
15-NA-0872022-11-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This technical bulletin advises the technician to rest the MIL and diagnose additional DTCs for why the code is setting and disabling the start/stop system.
22-NA-2052022-11-02. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Module Harvesting.
22-NA-1512022-10-28. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides diagnostic and repair information for instances when DTC P0BBD may set.
22-NA-1142022-10-28. 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.
PI0592G2022-10-13. Service bulletin. ELECTRICAL SYSTEM. This preliminary information (PI) provides information om Service Programming System (SPS) Error Codes (E4398, E4399, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491 or E6961).
22-NA-1512022-10-12. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides diagnostic and repair information for instances when DTC P0BBD may set.
13-08-116-001H2022-10-11. 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.
21-NA-0682022-10-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.
N222369401-012022-09-30. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:HYBRID MANAGEMENT:POWER CONTROL UNIT/MODULE (HPCU). Certain vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This software update reduces false diagnostic activation in certain vehicles under certain driving conditions, and prevents diagnostic data loss. Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).
N222369401-012022-09-21. Service bulletin. ELECTRICAL SYSTEM. Certain Chevrolet Bolt EV and Chevrolet Bolt EUV vehicles are to receive a software update to improve the original Advanced Diagnostic Software. This software update reduces false diagnostic activation in certain vehicles under certain driving conditions, and prevents diagnostic data loss. Dealers are to reprogram the Hybrid Powertrain Control Module 2 (HPCM2).
18-NA-1802022-09-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This Warranty Administration Bulletin Provides High Voltage Battery Exchange Process Information.
PIP5850B2022-08-15. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that a returning P0BBD could be a fault setting code due to calibration that engineering is aware of at this time and is working to resolve the issue. It also gives direction to hold the vehicle and offer the customer with a loaner vehicle until remedy is found. if codes is not set to the parameters of the PI then to follow battery pack replacement procedures that have been out lined in service information.
PIT5569B2022-08-15. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; SERVICE BRAKES, AIR:ANTILOCK:WHEEL SPEED SENSOR. This Preliminary information communicates direction and examples when diagnosing multiple DTCs, one of which includes U**** Byte 71 DTC.
22-NA-1192022-08-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The service bulletin provides warranty information on High Voltage Battery Safety Recall Replacement Parts.
16-NA-3092022-08-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This bulletin describes the proper way to stow the charge cord during PDI using the Velcro strap in the trunk.
22-NA-1142022-07-01. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides information on Forklift and Vehicle Hoist Requirements to Support Electric Vehicle (EV) High Voltage Battery Handling.
PIC6449A2022-06-13. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealers on the process to be able to order a replacement High Voltage battery pack for a vehicle that has a High Voltage battery battery concern and is not on the current open recall list. This document will add in advising the dealers to contact TAC with needed information so TAC can review the data to verify that the vehicle need a High Voltage battery and then TAC will release the High voltage battery so the dealer can repair the vehicle for the customer. Also the Administrative Details have the direction for the consultants to be able to follow and handle the case information as it comes in.
22-NA-1152022-06-06. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.
22NA0122022-05-31. Service bulletin. ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. This service bulletin provides information for dealers/technicians on Stone Chip/Membrane Damage, Broken Connector and/or Sensor Retaining Tabs, and/or Paint Damage of Park Assist Sensors.
17NA0972022-05-31. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides a procedure to apply butyl tape to the object sensing alert module brackets to correct a side blind zone not working correctly or Side Mirror Notification condition.
PIE0673A2022-05-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM. This engineering information (EI) closure ends the need for further information from the field in regards to poor cooling and/or defogging performance of the A/C system.
21-NA-2612022-05-11. Service bulletin. ELECTRICAL SYSTEM. This service bulletin provides a procedure for dealers/technicians to follow on vehicles with a charge limited to 80% After Battery Pack Replaced for Recall N212343881, N212345941 or N212345943.

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