GMC Sierra Service Bulletins (2021)

1,650 manufacturer communications on file.

• March 23, 2021•Document ID: 10190421

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5791

  Date Added:

  April 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealership technicians to perform a sweep of the coolant flow control valve and test the circuits before replacing the Engine Coolant Flow Control Valve, and to assist engineering in root causing the P2B60.

  Associated Products (8)

  2021 Cadillac Escalade ESV2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon XL2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10190421-0001.pdf↗
• March 22, 2021•Document ID: 10190415

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIT5715A

  Date Added:

  April 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information provides information to the technician about a additional diagnostic tip for a check engine lamp for DTC P3055 and P3056 and the start/Stop being inoperative.

  Associated Products (6)

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

  • DownloadMC-10190415-0001.pdf↗
• March 22, 2021•Document ID: 10192031

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

  Mfr Comm. #:

  21NA061

  Date Added:

  May 10, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs (North America ONLY).

  Associated Products (74)

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  Associated Documents

  • DownloadMC-10192031-0001.pdf↗
• March 22, 2021•Document ID: 10190418

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; SERVICE BRAKES

  Mfr Comm. #:

  PIP5787A

  Date Added:

  April 19, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Sensor Performance), P0108 (Manifold Absolute Pressure Sensor Circuit High) and/or P00C7 (Intake Air Pressure Measurement System Sensor and Multiple Sensors Correlation) codes active or stored in history. This condition may be caused by a faulty Manifold Absolute Pressure (MAP) sensor.

  Associated Products (8)

  2021 Cadillac Escalade2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Savana2021 GMC Sierra2021 GMC Yukon
  Associated Documents

  • DownloadMC-10190418-0001.pdf↗
• March 22, 2021•Document ID: 10190416

  Service Bulletin/Repair Instructions
  POWER TRAIN; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIP5792

  Date Added:

  April 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that if a customer comments that their vehicle equipped with a 6L80, 6L90, 8L90, 10L80, or 10L1000 transmission has a harsh shift, shudder or stall concern they should inspect for a twisted transmission cooler line. Technicians are instructed to disconnect the cooler line and untwist it then reconnect the cooler line and inspect the cooler line for being misshaped. Technicians are instructed to replace the cooler line if it is misshaped.

  Associated Products (6)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon
  Associated Documents

  • DownloadMC-10190416-0001.pdf↗
• March 18, 2021•Document ID: 10190773

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  N212330530

  Date Added:

  April 26, 2021

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program. Certain vehicles may have had a double charge applied for the 20-inch aluminum wheels with accents at the time of vehicle purchase. Dealers will provide the customer with a reimbursement check in the amount of $1400 for 2500HD models OR $800 for 3500HD models.

  Associated Products (1)

  2021 GMC Sierra
  Associated Documents

  • DownloadMC-10190773-0001.pdf↗
• March 18, 2021•Document ID: 10191213

  Service Bulletin/Repair Instructions
  AIR BAGS

  Mfr Comm. #:

  21NA005

  Date Added:

  May 3, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to replace the air bag and air bag harness to correct a condition of Airbag Malfunction Warning and Airbag Malfunction Indicator Illuminated with DTC B0001-1B due to corrosion.

  Associated Products (16)

  2021 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 Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL
  Associated Documents

  • DownloadMC-10191213-0001.pdf↗
• March 17, 2021•Document ID: 10191229

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  21NA056

  Date Added:

  May 3, 2021

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to correct the condition of Information on Vehicles Engine Shuts Off After 30 or 60 Minutes of Idling.

  Associated Products (6)

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

  • DownloadMC-10191229-0001.pdf↗
• March 17, 2021•Document ID: 10192034

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER

  Mfr Comm. #:

  21NA068

  Date Added:

  May 10, 2021

  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 2021 and newer model year vehicles with RPO ATH (U.S. Only).

  Associated Products (35)

  2022 Chevrolet Bolt EV2021 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 Express+ 15 more
  Associated Documents

  • DownloadMC-10192034-0001.pdf↗
• March 17, 2021•Document ID: 10191233

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  110089005Q

  Date Added:

  May 3, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

  Associated Products (380)

  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 6500XD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express+ 360 more
  Associated Documents

  • DownloadMC-10191233-0001.pdf↗
• March 17, 2021•Document ID: 10190408

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; BACK OVER PREVENTION

  Mfr Comm. #:

  PIP5787

  Date Added:

  April 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC, P0106 (Manifold Absolute Pressure Sensor Performance), P0108 (Manifold Absolute Pressure Sensor Circuit High) and/or P00C7 (Intake Air Pressure Measurement System Sensor and Multiple Sensors Correlation) codes active or stored in history. This condition may be caused by a faulty Manifold Absolute Pressure (MAP) sensor.

  Associated Products (6)

  2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon
  Associated Documents

  • DownloadMC-10190408-0001.pdf↗
• March 16, 2021•Document ID: 10192032

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  21NA062

  Date Added:

  May 10, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin directs dealers to the correct path needed to correct a vehicle with the condition of Add-On Equipment Inoperative, Sulfur/Acid Smell During Vehicle Operation based on the correct cause.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10192032-0001.pdf↗
• March 16, 2021•Document ID: 10190772

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  N202324120

  Date Added:

  April 26, 2021

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program. On certain vehicles may experience brake function issues over time based on feedback received from the supplier concerning the condition of certain eBoost brake unit assemblies. Dealers are to replace the eBoost brake unit assembly.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10190772-0001.pdf↗
• March 16, 2021•Document ID: 10190406

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

  Mfr Comm. #:

  PIP5788

  Date Added:

  April 19, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off, with no driveabilty concerns. During inspection Technician may notice DTC P2635. Unknown at this time engineering is working on this concern

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10190406-0001.pdf↗
• March 16, 2021•Document ID: 10190407

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION:SOFTWARE

  Mfr Comm. #:

  PIC6425C

  Date Added:

  April 19, 2021

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates A list of software concerns and advises that engineering is working on a resolution. This PI will be changed to a bulletin once the Software is released.

  Associated Products (9)

  2021 Buick Envision2021 Cadillac XT42021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Malibu2021 Chevrolet Silverado2021 GMC Acadia2021 GMC Sierra
  Associated Documents

  • DownloadMC-10190407-0001.pdf↗
• March 11, 2021•Document ID: 10191247

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIE0617

  Date Added:

  May 3, 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 why is Engineering seeking more details on what is driving Engine Oil Cooler replacements through the warranty system.

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10191247-0001.pdf↗
• March 11, 2021•Document ID: 10191232

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  1008110001I

  Date Added:

  May 3, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on proper use of floor mats.

  Associated Products (552)

  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+ 532 more
  Associated Documents

  • DownloadMC-10191232-0001.pdf↗
• March 11, 2021•Document ID: 10191207

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN

  Mfr Comm. #:

  20NA138

  Date Added:

  May 3, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.

  Associated Products (685)

  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+ 665 more
  Associated Documents

  • DownloadMC-10191207-0001.pdf↗
• March 10, 2021•Document ID: 10191225

  Service Bulletin/Repair Instructions
  ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

  Mfr Comm. #:

  21NA052

  Date Added:

  May 3, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of False Traction Control or Stability Event During Slow Speed Sharp Turns.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10191225-0001.pdf↗
• March 10, 2021•Document ID: 10190397

  Service Bulletin/Repair Instructions
  AIR BAGS

  Mfr Comm. #:

  PIT5803A

  Date Added:

  April 19, 2021

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealers there is a known condition with being able to set the Teen Driver PIN and that General Motors Engineering team is working on a correction

  Associated Products (2)

  2021 Chevrolet Silverado2021 GMC Sierra
  Associated Documents

  • DownloadMC-10190397-0001.pdf↗