Chevrolet Bolt EV Service Bulletins (2027)

51 manufacturer communications on file.

• October 5, 2026•Document ID: 11037977

  Service Campaign
  UNKNOWN OR OTHER

  Mfr Comm. #:

  N262559000-01

  Date Added:

  October 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11037977-0001.pdf↗
• September 28, 2026•Document ID: 11038132

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6540K

  Date Added:

  October 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealers a procedure to reset the radio.

  Associated Products (173)

  2027 Buick Enclave2027 Buick Encore GX2027 Cadillac Escalade IQ2027 Cadillac Escalade IQL2027 Cadillac Lyriq2027 Cadillac Optiq2027 Cadillac Vistiq2027 Chevrolet Blazer2027 Chevrolet Bolt EV2027 Chevrolet Corvette2027 Chevrolet Equinox2027 Chevrolet Suburban2027 Chevrolet Tahoe2027 Chevrolet Trailblazer2027 Chevrolet Traverse2027 GMC Acadia2027 GMC Sierra2027 GMC Terrain2027 GMC Yukon2027 GMC Yukon XL+ 153 more
  Associated Documents

  • DownloadMC-11038132-0001.pdf↗
• September 28, 2026•Document ID: 11038136

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6457C

  Date Added:

  October 5, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (173)

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  Associated Documents

  • DownloadMC-11038136-0001.pdf↗
• September 26, 2026•Document ID: 11037555

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5698F

  Date Added:

  September 30, 2026

  Manufacturer:

  CADILLAC

  Summary

  This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.

  Associated Products (619)

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  Associated Documents

  • DownloadMC-11037555-0001.pdf↗
• September 23, 2026•Document ID: 11037456

  Service Campaign
  EXTERIOR LIGHTING

  Mfr Comm. #:

  N262568370

  Date Added:

  September 23, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11037456-0001.pdf↗
• September 10, 2026•Document ID: 11037249

  Service Campaign
  STRUCTURE:BODY

  Mfr Comm. #:

  N262566020

  Date Added:

  September 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11037249-0001.pdf↗
• September 10, 2026•Document ID: 11037320

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIC6629F

  Date Added:

  September 16, 2026

  Manufacturer:

  BUICK

  Summary

  This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

  Associated Products (95)

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  Associated Documents

  • DownloadMC-11037320-0001.pdf↗
• September 4, 2026•Document ID: 11037253

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP4902W

  Date Added:

  September 10, 2026

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.

  Associated Products (751)

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  Associated Documents

  • DownloadMC-11037253-0001.pdf↗
• September 3, 2026•Document ID: 11037757

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  Cabin 2026.3

  Date Added:

  October 2, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Better performance and reliability of wireless phone charging

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11037757-0001.pdf↗
• September 2, 2026•Document ID: 11037256

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6544

  Date Added:

  September 10, 2026

  Manufacturer:

  CADILLAC

  Summary

  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.

  Associated Products (57)

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  Associated Documents

  • DownloadMC-11037256-0001.pdf↗
• August 28, 2026•Document ID: 11036715

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6533B

  Date Added:

  September 2, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.

  Associated Products (25)

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  Associated Documents

  • DownloadMC-11036715-0001.pdf↗
• August 27, 2026•Document ID: 11036690

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6541

  Date Added:

  September 2, 2026

  Manufacturer:

  GMC

  Summary

  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

  Associated Products (130)

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  Associated Documents

  • DownloadMC-11036690-0001.pdf↗
• August 15, 2026•Document ID: 11036473

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  Telematics 2026.3

  Date Added:

  August 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Improved eCall system performance

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11036473-0001.pdf↗
• August 15, 2026•Document ID: 11036474

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  Driving & Energy 2026.3

  Date Added:

  August 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • Fixes to help ensure start reliability and prevent battery drain • Improved charging performance and messages • Improved performance for anti-lock braking system

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11036474-0001.pdf↗
• August 14, 2026•Document ID: 11036472

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  Infotainment 2026.3

  Date Added:

  August 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • 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

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11036472-0001.pdf↗
• August 14, 2026•Document ID: 11036222

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6533A

  Date Added:

  August 17, 2026

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communications information on a Short Range Radar software anomaly causing false / ghost left or right side object detection alerts.

  Associated Products (26)

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  Associated Documents

  • DownloadMC-11036222-0001.pdf↗
• August 3, 2026•Document ID: 11036194

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT6512A

  Date Added:

  August 14, 2026

  Manufacturer:

  BUICK

  Summary

  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.

  Associated Products (71)

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  Associated Documents

  • DownloadMC-11036194-0001.pdf↗
• July 21, 2026•Document ID: 11035116

  Service Campaign
  FUEL/PROPULSION SYSTEM

  Mfr Comm. #:

  N262559000-01

  Date Added:

  July 21, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11035116-0001.pdf↗
• July 16, 2026•Document ID: 11035391

  Over The Air
  UNKNOWN OR OTHER

  Mfr Comm. #:

  662.20

  Date Added:

  July 31, 2026

  Manufacturer:

  CHEVROLET

  Summary

  • 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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11035391-0001.pdf↗
• June 25, 2026•Document ID: 11034044

  Service Campaign
  STEERING

  Mfr Comm. #:

  N262560510

  Date Added:

  June 25, 2026

  Manufacturer:

  CHEVROLET

  Summary

  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.

  Associated Products (1)

  2027 Chevrolet Bolt EV
  Associated Documents

  • DownloadMC-11034044-0001.pdf↗