GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• January 19, 2023•Document ID: 10231427

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN

  Mfr Comm. #:

  22-NA-187

  Date Added:

  February 7, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the tech to inspect the transfer case motor electrical connectors for possible damage or corrosion that might be caused by a damage grommet inside the electrical connector.

  Associated Products (26)

  2022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2022 GMC Yukon XL2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Silverado2020 Chevrolet Suburban+ 6 more
  Associated Documents

  • DownloadMC-10231427-0001.pdf↗
• January 18, 2023•Document ID: 10231650

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:CONDENSOR/EVAPORATOR; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  PIT5767A

  Date Added:

  February 13, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issue with poor a/c performance and to replace the a/c condenser.

  Associated Products (6)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10231650-0001.pdf↗
• January 17, 2023•Document ID: 10231646

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; BACK OVER PREVENTION

  Mfr Comm. #:

  PIT5386H

  Date Added:

  February 13, 2023

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that are found to have a back-up alarm inoperative during the Pre-Delivery Inspection. On trucks equipped with the Back Up Alarm (RPO 8S3), the alarm will be intentionally left disconnected from the assembly plant. Technician will reroute the harness and plug it in.

  Associated Products (20)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 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 Sierra
  Associated Documents

  • DownloadMC-10231646-0001.pdf↗
• January 17, 2023•Document ID: 10231649

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  PIT5868B

  Date Added:

  February 13, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an issues will low or poor heater performance on the drivers side.  Dealers are to inspect the HVAC temperature door linkage and if ok replace the heater core.

  Associated Products (16)

  2022 Cadillac Escalade ESV2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon XL2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon XL2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10231649-0001.pdf↗
• January 17, 2023•Document ID: 10231374

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  21-NA-068

  Date Added:

  February 7, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides policy information requirements applicable to key fob replacement under the New Vehicle Limited Warranty or under a Replacement Parts Warranty on 2017-2022 and newer model year vehicles with RPO ATH and AVJ.

  Associated Products (274)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express+ 254 more
  Associated Documents

  • DownloadMC-10231374-0001.pdf↗
• January 13, 2023•Document ID: 10231643

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5843B

  Date Added:

  February 13, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF  P30C7 P30CB Setting.

  Associated Products (14)

  2023 Cadillac CT42023 Chevrolet Silverado2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Silverado2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Silverado2021 GMC Sierra2020 Cadillac CT42020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10231643-0001.pdf↗
• January 13, 2023•Document ID: 10230612

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-135

  Date Added:

  January 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information to inform dealership personnel about Law Enforcement and Government vehicles that request to disable or enable content.

  Associated Products (184)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express+ 164 more
  Associated Documents

  • DownloadMC-10230612-0001.pdf↗
• January 12, 2023•Document ID: 10231640

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5743C

  Date Added:

  February 13, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates diagnostic tips when trying to root cause a SES MIL with DTC's B2B0D and B2B0E.  Main cause is aftermarket electrical devices spliced into the ignition main fuses.

  Associated Products (10)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10231640-0001.pdf↗
• January 12, 2023•Document ID: 10230609

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20-NA-187

  Date Added:

  January 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides a repair procedure to correct a customer concern of Delayed and/or Harsh Engagement of Transmission Shift After Vehicle Sitting with Engine Off.

  Associated Products (52)

  2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Savana2023 GMC Sierra2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Express2021 Chevrolet Silverado+ 32 more
  Associated Documents

  • DownloadMC-10230609-0001.pdf↗
• January 12, 2023•Document ID: 10230608

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20-NA-142

  Date Added:

  January 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.

  Associated Products (51)

  2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Savana2022 GMC Sierra2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Savana2021 GMC Sierra2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe+ 31 more
  Associated Documents

  • DownloadMC-10230608-0001.pdf↗
• January 11, 2023•Document ID: 10230611

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21-NA-081

  Date Added:

  January 25, 2023

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to locate a possible short in the engine wiring harness.

  Associated Products (18)

  2023 Cadillac Escalade2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Yukon2022 Cadillac Escalade2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10230611-0001.pdf↗
• January 9, 2023•Document ID: 10231632

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIT5161J

  Date Added:

  February 13, 2023

  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 (34)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 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 Sierra+ 14 more
  Associated Documents

  • DownloadMC-10231632-0001.pdf↗
• January 6, 2023•Document ID: 10228951

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

  Mfr Comm. #:

  N222372592

  Date Added:

  January 7, 2023

  Manufacturer:

  GMC

  Summary

  Service Update. Certain vehicles may have a condition in which ice or sludge can accumulate in the Charge Air Cooler (CAC) or Closed Crankcase Ventilation (CCV) system when driving in extremely cold weather conditions (-18°C (0°F) or less). Dealers will install a radiator air front lower baffle and, if necessary, reprogram the Engine Control Module.

  Associated Products (7)

  2022 Chevrolet Silverado2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10228951-0001.pdf↗
• January 6, 2023•Document ID: 10230603

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  22-NA-115

  Date Added:

  January 25, 2023

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information for U.S. dealers ONLY to refer to the Battery Maintenance Report to identify vehicles in dealer inventory that require attention.

  Associated Products (161)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express+ 141 more
  Associated Documents

  • DownloadMC-10230603-0001.pdf↗
• January 5, 2023•Document ID: 10231625

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

  Mfr Comm. #:

  PIT5819A

  Date Added:

  February 13, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates in temperatures below freezing, it may be noticed that exhaust is only exiting from the right hand exhaust tailpipe.  The cause of this condition is a low point in left side tailpipe which results in condensation building up at the low point in the tailpipe.  In low temperatures the condensation can freeze and form ice limiting the flow of exhaust out of the left tailpipe.  Dealers are to drill a small hole in the left tailpipe to allow condensation to drain.

  Associated Products (10)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10231625-0001.pdf↗
• January 4, 2023•Document ID: 10230604

  Service Bulletin/Repair Instructions
  WHEELS; POWER TRAIN

  Mfr Comm. #:

  22-NA-251

  Date Added:

  January 25, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to replace the front wheel drive shaft if found the cause of the custmers concern.

  Associated Products (16)

  2022 Cadillac Escalade2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10230604-0001.pdf↗
• December 23, 2022•Document ID: 10228912

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  22-NA-257

  Date Added:

  January 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on Dealer Installed LPO Wheel Installation and Return Process.

  Associated Products (274)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express+ 254 more
  Associated Documents

  • DownloadMC-10228912-0001.pdf↗
• December 21, 2022•Document ID: 10228907

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  19-NA-136

  Date Added:

  January 6, 2023

  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 (72)

  2023 Cadillac Escalade2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2022 Cadillac Escalade2022 Chevrolet Colorado2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Canyon2022 GMC Sierra2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Colorado2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Canyon+ 52 more
  Associated Documents

  • DownloadMC-10228907-0001.pdf↗
• December 21, 2022•Document ID: 10228906

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

  Mfr Comm. #:

  09-00-89-008F

  Date Added:

  January 6, 2023

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support the Personal Property Damage process.

  Associated Products (982)

  2023 Buick Enclave2023 Buick Encore2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT42023 Cadillac CT52023 Cadillac Escalade2023 Cadillac Escalade ESV2023 Cadillac Lyriq2023 Cadillac XT42023 Cadillac XT52023 Cadillac XT62023 Chevrolet Blazer2023 Chevrolet Bolt EUV2023 Chevrolet Bolt EV2023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Corvette2023 Chevrolet Equinox2023 Chevrolet Express+ 962 more
  Associated Documents

  • DownloadMC-10228906-0001.pdf↗
• December 15, 2022•Document ID: 10228893

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21-NA-228

  Date Added:

  January 6, 2023

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides a procedure to program the BCM to correct the customers concern of RKE idle Time-out.

  Associated Products (10)

  2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 GMC Sierra2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10228893-0001.pdf↗