Chevrolet Express Service Bulletins (2021)

643 manufacturer communications on file.

• November 19, 2020•Document ID: 10184501

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE

  Mfr Comm. #:

  060089031F

  Date Added:

  December 21, 2020

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.

  Associated Products (464)

  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+ 444 more
  Associated Documents

  • DownloadMC-10184501-0001.pdf↗
• November 16, 2020•Document ID: 10184500

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

  Mfr Comm. #:

  030604017O

  Date Added:

  December 21, 2020

  Manufacturer:

  GMC

  Summary

  This Informational Bulletin provides information on availability of Diesel Fuel additives.

  Associated Products (115)

  2021 Cadillac Escalade2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra+ 95 more
  Associated Documents

  • DownloadMC-10184500-0001.pdf↗
• November 12, 2020•Document ID: 10184499

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; WHEELS

  Mfr Comm. #:

  000310002L

  Date Added:

  December 21, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Chemical Staining, Pitting, Corrosion and/or Spotted Appearance of Chromed Aluminum Wheels.

  Associated Products (384)

  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+ 364 more
  Associated Documents

  • DownloadMC-10184499-0001.pdf↗
• November 11, 2020•Document ID: 10184105

  Service Bulletin/Repair Instructions
  TIRES; WHEELS

  Mfr Comm. #:

  PIT3271K

  Date Added:

  December 14, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

  Associated Products (918)

  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 4500XD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu+ 898 more
  Associated Documents

  • DownloadMC-10184105-0001.pdf↗
• November 6, 2020•Document ID: 10184504

  Service Bulletin/Repair Instructions
  VISIBILITY:GLASS, SIDE/REAR; VISIBILITY:GLASS, SIDE/REAR:CRITICAL FASTENERS

  Mfr Comm. #:

  PI0754D

  Date Added:

  December 21, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This PI provides information on Rear and Side Tempered Glass Spots (Quench Marks) and that they are a normal characteristic.

  Associated Products (467)

  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+ 447 more
  Associated Documents

  • DownloadMC-10184504-0001.pdf↗
• November 6, 2020•Document ID: 10184503

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  990851001E

  Date Added:

  December 21, 2020

  Manufacturer:

  CADILLAC

  Summary

  Thins informational bulletin provides information on Paint-less Dent Repair Process.

  Associated Products (455)

  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+ 435 more
  Associated Documents

  • DownloadMC-10184503-0001.pdf↗
• November 2, 2020•Document ID: 10184502

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

  Mfr Comm. #:

  100605002I

  Date Added:

  December 21, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

  Associated Products (81)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra+ 61 more
  Associated Documents

  • DownloadMC-10184502-0001.pdf↗
• October 30, 2020•Document ID: 10183127

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL; EQUIPMENT

  Mfr Comm. #:

  16NA244

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information on Diesel Exhaust Fluid (DEF) and the proper use of the DEF system.

  Associated Products (61)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2018 Chevrolet Colorado+ 41 more
  Associated Documents

  • DownloadMC-10183127-0001.pdf↗
• October 28, 2020•Document ID: 10183132

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  16NA380

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

  Associated Products (84)

  2021 Cadillac Escalade2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox+ 64 more
  Associated Documents

  • DownloadMC-10183132-0001.pdf↗
• October 27, 2020•Document ID: 10183176

  Service Bulletin/Repair Instructions
  EQUIPMENT; FUEL SYSTEM, DIESEL

  Mfr Comm. #:

  19NA237

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin explains how to identify possible DEF contamination.

  Associated Products (69)

  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 Silverado2019 GMC Canyon2019 GMC Sierra2019 GMC Terrain+ 49 more
  Associated Documents

  • DownloadMC-10183176-0001.pdf↗
• October 26, 2020•Document ID: 10183139

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

  Mfr Comm. #:

  17NA222

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to replace the turbocharger for vehicles with a condition of Turbocharger Whine Noise due to the blades on the turbo being bent.

  Associated Products (24)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 GMC Canyon2021 GMC Savana2020 Chevrolet Colorado2020 Chevrolet Express2020 GMC Canyon2020 GMC Savana2019 Chevrolet Colorado2019 Chevrolet Express2019 GMC Canyon2019 GMC Savana2018 Chevrolet Colorado2018 Chevrolet Express2018 GMC Canyon2018 GMC Savana2017 Chevrolet Colorado2017 Chevrolet Express2017 GMC Canyon2017 GMC Savana+ 4 more
  Associated Documents

  • DownloadMC-10183139-0001.pdf↗
• October 23, 2020•Document ID: 10183782

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  1308116001F

  Date Added:

  December 7, 2020

  Manufacturer:

  CHEVROLET

  Summary

  The intent of this technical 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.

  Associated Products (620)

  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+ 600 more
  Associated Documents

  • DownloadMC-10183782-0001.pdf↗
• October 23, 2020•Document ID: 10183153

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP

  Mfr Comm. #:

  18NA103

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to correct a customer concern of an in-tank fuel pump whining noise, engine hard to start and/or stalls and Malfunction Indicator Lamp (MIL) is illuminated.

  Associated Products (85)

  2021 Cadillac Escalade2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Malibu2020 Chevrolet Silverado2020 GMC Canyon+ 65 more
  Associated Documents

  • DownloadMC-10183153-0001.pdf↗
• October 23, 2020•Document ID: 10183126

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  16NA222

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

  Associated Products (440)

  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 Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe+ 420 more
  Associated Documents

  • DownloadMC-10183126-0001.pdf↗
• October 21, 2020•Document ID: 10183779

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL

  Mfr Comm. #:

  050604022R

  Date Added:

  December 7, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on the TOP TIER Detergent Gasoline Licensed Brands and the TOP TIER Diesel Fuel Licensed Brands that are recommended for use in all GM vehicles and the TOP TIER FUELS website URL.

  Associated Products (527)

  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+ 507 more
  Associated Documents

  • DownloadMC-10183779-0001.pdf↗
• October 21, 2020•Document ID: 10183135

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

  Mfr Comm. #:

  17NA114

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to Tighten the Charge Air Cooler Duct Clamp to correct a condition of an oil leak originating from either the inlet or outlet duct of the turbocharger due to the charge air cooler pipe clamp not being tightened properly.

  Associated Products (24)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 GMC Canyon2021 GMC Savana2020 Chevrolet Colorado2020 Chevrolet Express2020 GMC Canyon2020 GMC Savana2019 Chevrolet Colorado2019 Chevrolet Express2019 GMC Canyon2019 GMC Savana2018 Chevrolet Colorado2018 Chevrolet Express2018 GMC Canyon2018 GMC Savana2017 Chevrolet Colorado2017 Chevrolet Express2017 GMC Canyon2017 GMC Savana+ 4 more
  Associated Documents

  • DownloadMC-10183135-0001.pdf↗
• October 20, 2020•Document ID: 10183173

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  19NA233

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides tips for showing a way to confirm if its a mechanical engine issue or not.

  Associated Products (21)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 GMC Canyon2021 GMC Savana2020 Chevrolet Colorado2020 Chevrolet Express2020 GMC Canyon2020 GMC Savana2019 Chevrolet Colorado2019 Chevrolet Express2019 GMC Canyon2019 GMC Savana2018 Chevrolet Colorado2018 Chevrolet Express2018 GMC Canyon2018 GMC Savana2017 Chevrolet Colorado2017 GMC Canyon2017 GMC Savana2016 Chevrolet Colorado+ 1 more
  Associated Documents

  • DownloadMC-10183173-0001.pdf↗
• October 19, 2020•Document ID: 10183149

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

  Mfr Comm. #:

  17NA352

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains how the SOOT readings went from grams to percentage. 2-1-18 Change Subject to reflect the test procedure. 5-1-18 Updated the Information section.

  Associated Products (22)

  2021 Chevrolet Colorado2021 Chevrolet Express2021 GMC Canyon2021 GMC Savana2020 Chevrolet Colorado2020 Chevrolet Express2020 GMC Canyon2020 GMC Savana2019 Chevrolet Colorado2019 Chevrolet Express2019 GMC Canyon2019 GMC Savana2018 Chevrolet Colorado2018 Chevrolet Express2018 GMC Canyon2018 GMC Savana2017 Chevrolet Colorado2017 Chevrolet Express2017 GMC Canyon2017 GMC Savana+ 2 more
  Associated Documents

  • DownloadMC-10183149-0001.pdf↗
• October 16, 2020•Document ID: 10183796

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  PIE0591

  Date Added:

  December 7, 2020

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards a front door that can not be opened from the inside or outside.

  Associated Products (4)

  2021 Chevrolet Express2021 GMC Savana2020 Chevrolet Express2020 GMC Savana
  Associated Documents

  • DownloadMC-10183796-0001.pdf↗
• October 13, 2020•Document ID: 10183168

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL; FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP

  Mfr Comm. #:

  20NA110

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  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-10183168-0001.pdf↗