GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• 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 7, 2020•Document ID: 10187740

  Service Bulletin/Repair Instructions
  EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0604

  Date Added:

  March 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  GSA Example: This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the service 4WD message illuminated on the drivers information center (DIC).

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187740-0001.pdf↗
• December 7, 2020•Document ID: 10187738

  Service Bulletin/Repair Instructions
  VISIBILITY:REAR WINDOW WIPER/WASHER:MOTOR

  Mfr Comm. #:

  PIE0603A

  Date Added:

  March 1, 2021

  Manufacturer:

  GMC

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187738-0001.pdf↗
• December 7, 2020•Document ID: 10186119

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0604

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  GSA Example: This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the service 4WD message illuminated on the drivers information center (DIC).

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10186119-0001.pdf↗
• December 7, 2020•Document ID: 10186117

  Service Bulletin/Repair Instructions
  VISIBILITY

  Mfr Comm. #:

  PIE0603A

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10186117-0001.pdf↗
• December 4, 2020•Document ID: 10187410

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  20NA198

  Date Added:

  February 22, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10187410-0001.pdf↗
• December 4, 2020•Document ID: 10186083

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  20NA198

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of seeing the trailer running lights shut off due to excessive load on the running lamp circuit.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10186083-0001.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 3, 2020•Document ID: 10187737

  Service Bulletin/Repair Instructions
  VISIBILITY:REAR WINDOW WIPER/WASHER:SWITCH/WIRING

  Mfr Comm. #:

  PIE0603

  Date Added:

  March 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10187737-0001.pdf↗
• December 3, 2020•Document ID: 10186116

  Service Bulletin/Repair Instructions
  VISIBILITY; EQUIPMENT

  Mfr Comm. #:

  PIE0603

  Date Added:

  February 1, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the rear sliding window leaking water.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10186116-0001.pdf↗
• December 1, 2020•Document ID: 10186046

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

  Mfr Comm. #:

  N202320510

  Date Added:

  February 1, 2021

  Manufacturer:

  CADILLAC

  Summary

  Customer Satisfaction Program. Certain vehicles, equipped with a gas engine, may have a condition in which the printed circuit board inside of the water pump may have been manufactured incorrectly potentially causing a water pump failure. The vehicle coolant system temperature is monitored and will display multiple warnings to the customer as coolant temperatures rise. At a set coolant temperature, the MIL will illuminate, DTC P2B85 will set in the engine control module (ECM), the oil pressure gauge will indicate high oil pressure and reduced torque with notification to the driver of reduced power will occur. If the customer continues to drive after this warning and the coolant temperature continues to rise, a chime will occur, the AC will be disabled and an additional message instructing the driver to idle will illuminate. If the customer continues to drive the vehicle after all previous warnings and the coolant temperature continues to rise a message the engine will shut down could occur, and the engine will be shut down. Dealers are to replace the water pump.

  Associated Products (8)

  2021 Cadillac CT42021 Cadillac CT52021 Chevrolet Silverado2021 GMC Sierra2020 Cadillac CT42020 Cadillac CT52020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10186046-0001.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: 10187383

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  19NA136

  Date Added:

  February 22, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.

  Associated Products (49)

  2021 Chevrolet Colorado2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Sierra2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Canyon2019 GMC Sierra2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Colorado2018 Chevrolet Silverado2018 Chevrolet Suburban+ 29 more
  Associated Documents

  • DownloadMC-10187383-0001.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: 10186069

  Service Bulletin/Repair Instructions
  PARKING BRAKE; EQUIPMENT; POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)

  Mfr Comm. #:

  19NA136

  Date Added:

  February 1, 2021

  Manufacturer:

  GMC

  Summary

  This service bulletin provides a diagnostic procedure to aid in correcting a customer concern of a Howling, Whining/Whirring Noise, Shudder/Vibration and/or Grinding Noise While in 4HI, 4HI Auto and/or During Parking Lot Maneuvers in Auto Mode.

  Associated Products (54)

  2021 Chevrolet Colorado2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Sierra2020 Chevrolet Colorado2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Sierra2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Canyon2019 GMC Sierra2019 GMC Yukon2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Colorado2018 Chevrolet Silverado+ 34 more
  Associated Documents

  • DownloadMC-10186069-0001.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 30, 2020•Document ID: 10184482

  Service Bulletin/Repair Instructions
  VISIBILITY; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; POWER TRAIN

  Mfr Comm. #:

  19NA076

  Date Added:

  December 21, 2020

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Blue or Black Screen and Service Rear Vision System Message on Radio Display Shifting into Reverse.

  Associated Products (24)

  2020 Buick Enclave2020 Buick Encore GX2020 Cadillac CT62020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Equinox2020 Chevrolet Silverado2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra2020 GMC Terrain2019 Buick LaCrosse2019 Cadillac CT62019 Cadillac XT42019 Chevrolet Blazer2019 Chevrolet Camaro+ 4 more
  Associated Documents

  • DownloadMC-10184482-0001.pdf↗
• November 30, 2020•Document ID: 10184142

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT

  Mfr Comm. #:

  PIT5161H

  Date Added:

  December 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that may have a bump feel or clunk noise at a stop or on launch. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle. The bump clunk issue may be due to fuel movement in the fuel tank when not completely full. The condition is eliminated after completely filling the fuel tank.

  Associated Products (30)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra2014 Chevrolet Silverado2014 GMC Sierra2013 Chevrolet Silverado2013 GMC Sierra2012 Chevrolet Silverado2012 GMC Sierra+ 10 more
  Associated Documents

  • DownloadMC-10184142-0001.pdf↗