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Service bulletins for the 2027 Chevrolet Bolt

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.

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

By type

By component

By trouble code

Bulletins, newest first
PIT6457C2026-10-05. Service bulletin. UNKNOWN OR OTHER. This preliminary information is for technicians that may see DTCs that are history and should not perform any part replacements. They should follow the notes mentioned prior to anything being replaced.
PIC6540K2026-10-05. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to dealers a procedure to reset the radio.
N262559000-012026-10-05. Service campaign. UNKNOWN OR OTHER. Certain vehicles may have a condition in which the software that maintains the RESS battery pack may inadvertently cause a drain on the high voltage and low voltage batteries. Dealers are to program the Battery Energy Control Module then fully charge the high voltage battery to reset the cell balancing software.
Cabin 2026.32026-10-02. Over-the-air update. UNKNOWN OR OTHER. • Better performance and reliability of wireless phone charging
PIT5698F2026-09-30. Service bulletin. UNKNOWN OR OTHER. This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
N2625683702026-09-23. Service campaign. EXTERIOR LIGHTING. Certain vehicles listed above may have a condition in which there is a water leak due to a partially seated tail-lamp harness grommet. Dealers will inspect and reseat grommet if necessary.
PIC6629F2026-09-16. Service bulletin. UNKNOWN OR OTHER. This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display
PIT65442026-09-10. Service bulletin. UNKNOWN OR OTHER. This preliminary information is to inform technicians and customers that GM is aware of the issue and the vehicle can still be driven. When a repair is available, this PI will be updated.
PIP4902W2026-09-10. Service bulletin. UNKNOWN OR OTHER. This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
N2625660202026-09-10. Service campaign. STRUCTURE:BODY. Certain vehicles may have a condition in which the roof to body side structure has a pinhole in it. Dealers are to inspect the right hand side of the roof-to-body joint for pinholes and, if necessary, reseal the area.
PIT6533B2026-09-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.
PIT65412026-09-02. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the technicians a diagnostic tip if a technician loses communication with the image processor #2 and how to restore communication
Driving & Energy 2026.32026-08-31. Over-the-air update. UNKNOWN OR OTHER. • Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and messages • Improved performance for anti-lock braking system
Telematics 2026.32026-08-31. Over-the-air update. UNKNOWN OR OTHER. • Improved eCall system performance
Infotainment 2026.32026-08-31. Over-the-air update. UNKNOWN OR OTHER. • Updates to enable Plug and Charge at select Supercharger stations through Energy Pass. See your vehicle's mobile app to use this feature • Surround Vision Recorder, a new feature that allows you to record, watch, and save video from your vehicle's cameras • Better responsiveness for the driver display and rear-view camera
PIT6533A2026-08-17. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.
PIT6512A2026-08-14. Service bulletin. UNKNOWN OR OTHER. This PI states that if SDGM DTC P0604/P0607 is set and no other SDGM DTCs are present, clear DTCs and reset the SDGM. Advises of how to contact PQC to authorize SDGM replacement.
662.202026-07-31. Over-the-air update. UNKNOWN OR OTHER. • Improved vehicle performance when driving in Reverse on slippery surfaces • Better One-Pedal Driving performance • Additional protection for battery health and prevention for battery drain • Improved accuracy for driver display messages • This update contains a required software change to help improve the overall software update and diagnostics process.
N262559000-012026-07-21. Service campaign. FUEL/PROPULSION SYSTEM. Certain vehicles may have a condition in which the software that maintains the RESS battery pack may inadvertently cause a drain on the high voltage and low voltage batteries. Dealers are to program the Battery Energy Control Module then fully charge the high voltage battery to reset the cell balancing software.
PIP6122B2026-07-07. Service bulletin. UNKNOWN OR OTHER. This information addresses a potential software anomaly that may cause a MIL illumination, a Service High Voltage message on the IPC, and, when the DTC is current, a no-start condition while the vehicle is in Run/Propulsion mode. If one or more of the listed DTCs are stored in history, technicians are to perform SPS2 Hybrid/EV Battery Data Retrieval per Bulletin 25-NA-044, create a TAC case referencing the applicable P.I. number, and include the WCC obtained from the SPS data retrieval. TAC will provide further direction after engineering reviews the vehicle-specific data. This information applies only to the listed DTCs and symptom bytes and does not apply if the codes or symptom bytes differ.
662.102026-06-25. Over-the-air update. UNKNOWN OR OTHER. • Additional protection for battery health and to help prevent battery drain • Improved charging messaging in the driver display • Improved vehicle diagnostics This update includes improvements to your battery health management system. We recommend you charge to 100% as soon as possible for this update to take effect.
N2625605102026-06-25. Service campaign. STEERING. Certain vehicles may have a condition in which a fastener may be loose at the steering column to cockpit beam. Dealers will inspect the fasteners and torque them to the proper value.
PIP6122A2026-06-18. Service bulletin. UNKNOWN OR OTHER. This information addresses a potential software anomaly that may cause a MIL illumination, a Service High Voltage message on the IPC, and, when the DTC is current, a no-start condition while the vehicle is in Run/Propulsion mode. If one or more of the listed DTCs are stored in history, technicians are to perform SPS2 Hybrid/EV Battery Data Retrieval per Bulletin 25-NA-044, create a TAC case referencing the applicable P.I. number, and include the WCC obtained from the SPS data retrieval. TAC will provide further direction after engineering reviews the vehicle-specific data. This information applies only to the listed DTCs and symptom bytes and does not apply if the codes or symptom bytes differ.
PIP6103C2026-06-18. Service bulletin. UNKNOWN OR OTHER. This PI explains that the T18, Battery charger drive power distribution control modules are on parts restriction thru TAC.
N2625590002026-06-11. Service campaign. FUEL/PROPULSION SYSTEM. Certain vehicles may have a condition in which the software that maintains the RESS battery pack may inadvertently cause a drain on the high voltage and low voltage batteries. Dealers are to fully charge the high voltage battery to reset the cell balancing software.

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