Chevrolet Express Service Bulletins (2021)

643 manufacturer communications on file.

• January 26, 2021•Document ID: 10187749

  Service Bulletin/Repair Instructions
  ENGINE; STEERING; SERVICE BRAKES

  Mfr Comm. #:

  19NA037

  Date Added:

  March 1, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of no start, hard start with belt squeal, belt break, loss of power steering and/or power brake assist.

  Associated Products (8)

  2021 Chevrolet Express2021 GMC Savana2020 Chevrolet Express2020 GMC Savana2019 Chevrolet Express2019 GMC Savana2018 Chevrolet Express2018 GMC Savana
  Associated Documents

  • DownloadMC-10187749-0001.pdf↗
• January 22, 2021•Document ID: 10187747

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, OTHER:KINETIC:CLUTCH; EQUIPMENT

  Mfr Comm. #:

  18NA285

  Date Added:

  March 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin advises the tech of a possible normal condition when the vehicle creeps forward during start up conditions when the clutch packs are full of residual oil.

  Associated Products (63)

  2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV+ 43 more
  Associated Documents

  • DownloadMC-10187747-0001.pdf↗
• January 22, 2021•Document ID: 10187745

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  18NA073

  Date Added:

  March 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides graphics, information and guidelines for engine component wear to assist service personnel as a guideline to perform necessary engine repairs and prevent unnecessary engine replacement.

  Associated Products (275)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Spark+ 255 more
  Associated Documents

  • DownloadMC-10187745-0001.pdf↗
• January 11, 2021•Document ID: 10187757

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, DIESEL

  Mfr Comm. #:

  20NA110

  Date Added:

  March 1, 2021

  Manufacturer:

  GMC

  Summary

  This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump.

  Associated Products (41)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2020 GMC Terrain2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana+ 21 more
  Associated Documents

  • DownloadMC-10187757-0001.pdf↗
• December 23, 2020•Document ID: 10187420

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA225

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to remove the tabs from the pre and post battery positive cables so they dont contact the Mega fuses mounting studs that are grounded out.

  Associated Products (2)

  2021 Chevrolet Express2021 GMC Savana
  Associated Documents

  • DownloadMC-10187420-0001.pdf↗
• December 23, 2020•Document ID: 10187379

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA306

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  Associated Products (396)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 376 more
  Associated Documents

  • DownloadMC-10187379-0001.pdf↗
• December 23, 2020•Document ID: 10186093

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA225

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to remove the tabs from the pre and post battery positive cables so they dont contact the Mega fuses mounting studs that are grounded out.

  Associated Products (2)

  2021 Chevrolet Express2021 GMC Savana
  Associated Documents

  • DownloadMC-10186093-0001.pdf↗
• December 23, 2020•Document ID: 10186065

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA306

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA).

  Associated Products (401)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 381 more
  Associated Documents

  • DownloadMC-10186065-0001.pdf↗
• December 16, 2020•Document ID: 10187625

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION

  Mfr Comm. #:

  010601011L

  Date Added:

  March 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (677)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 657 more
  Associated Documents

  • DownloadMC-10187625-0001.pdf↗
• December 16, 2020•Document ID: 10186104

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EQUIPMENT

  Mfr Comm. #:

  010601011L

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.

  Associated Products (706)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 686 more
  Associated Documents

  • DownloadMC-10186104-0001.pdf↗
• December 8, 2020•Document ID: 10187627

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

  Mfr Comm. #:

  090604026S

  Date Added:

  March 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

  Associated Products (352)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 332 more
  Associated Documents

  • DownloadMC-10187627-0001.pdf↗
• December 8, 2020•Document ID: 10186106

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  090604026S

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on identifying Non-GM Engine Calibrations for Gasoline Engines using the Tech 2 or GDS 2.

  Associated Products (351)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 331 more
  Associated Documents

  • DownloadMC-10186106-0001.pdf↗
• December 4, 2020•Document ID: 10187394

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  20NA159

  Date Added:

  February 22, 2021

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

  Associated Products (353)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 333 more
  Associated Documents

  • DownloadMC-10187394-0001.pdf↗
• December 4, 2020•Document ID: 10186080

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  20NA159

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

  Associated Products (352)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 332 more
  Associated Documents

  • DownloadMC-10186080-0001.pdf↗
• December 1, 2020•Document ID: 10187626

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  040089015V

  Date Added:

  March 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).

  Associated Products (273)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 253 more
  Associated Documents

  • DownloadMC-10187626-0001.pdf↗
• December 1, 2020•Document ID: 10187372

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16NA019

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

  Associated Products (229)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Spark2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse+ 209 more
  Associated Documents

  • DownloadMC-10187372-0001.pdf↗
• December 1, 2020•Document ID: 10186105

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  040089015V

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on Warranty Administration ? Required Operating Procedures - 8 Points (U.S. Only).

  Associated Products (273)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado+ 253 more
  Associated Documents

  • DownloadMC-10186105-0001.pdf↗
• December 1, 2020•Document ID: 10186058

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN

  Mfr Comm. #:

  16NA019

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

  Associated Products (228)

  2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 Chevrolet Traverse2021 Chevrolet Trax+ 208 more
  Associated Documents

  • DownloadMC-10186058-0001.pdf↗
• November 25, 2020•Document ID: 10184480

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

  Mfr Comm. #:

  18NA263

  Date Added:

  December 21, 2020

  Manufacturer:

  CADILLAC

  Summary

  This warranty administration bulletin provide policy information for variable diagnostic time allowances on select labor operations (U.S. Only).

  Associated Products (422)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban+ 402 more
  Associated Documents

  • DownloadMC-10184480-0001.pdf↗
• November 23, 2020•Document ID: 10184484

  Service Bulletin/Repair Instructions
  EQUIPMENT; POWER TRAIN:CLUTCH ASSEMBLY; EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  20NA078

  Date Added:

  December 21, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to replace the 4 5 6 clutch housing if the bushing was found worn and the cause of the customers concern.

  Associated Products (22)

  2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra+ 2 more
  Associated Documents

  • DownloadMC-10184484-0001.pdf↗