GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• January 21, 2020•Document ID: 10172285

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  20NA016

  Date Added:

  March 9, 2020

  Manufacturer:

  BUICK

  Summary

  This Warranty Administration bulletin provides information on customer vehicles concern results in a manufacturer repurchase from the customer, GM depends on the dealership to host and administer the repurchase closing and intake of the returning vehicle.

  Associated Products (412)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 392 more
  Associated Documents

  • DownloadMC-10172285-0001.pdf↗
• January 17, 2020•Document ID: 10172298

  Service Bulletin/Repair Instructions
  POWER TRAIN; EQUIPMENT

  Mfr Comm. #:

  PIE0538A

  Date Added:

  March 9, 2020

  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 8 speed transmission shift quality.

  Associated Products (8)

  2020 Cadillac CT42020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172298-0001.pdf↗
• January 17, 2020•Document ID: 10171888

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

  Mfr Comm. #:

  18NA306

  Date Added:

  March 2, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (372)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet 35002020 Chevrolet 4500HD2020 Chevrolet 5500HD2020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette+ 352 more
  Associated Documents

  • DownloadMC-10171888-0001.pdf↗
• January 17, 2020•Document ID: 10171298

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIT5636A

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issues with a SES MIL and DTC P1005 and to replace the fuel pump driver control module with an updated part number.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171298-0001.pdf↗
• January 17, 2020•Document ID: 10171297

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  PIT5387G

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician how to repair vehicles that Instrument Panel Cluster, Radio, and Heater-Vent-Air Conditioning display blanks out, Bluetooth phone or Pandora connection dropped, the radio station or volume changes when operating the snow plow. Please advise the customer that engineering is aware of this concern and working on this issue.

  Associated Products (14)

  2020 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-10171297-0001.pdf↗
• January 17, 2020•Document ID: 10171294

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5700A

  Date Added:

  February 10, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the information provided in this document to obtain the internal wiring harness part numbers by application.

  Associated Products (53)

  2020 Cadillac CT42020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Cadillac ATS2019 Cadillac CTS2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2018 Cadillac ATS2018 Cadillac CT6+ 33 more
  Associated Documents

  • DownloadMC-10171294-0001.pdf↗
• January 17, 2020•Document ID: 10171293

  Service Bulletin/Repair Instructions
  WHEELS

  Mfr Comm. #:

  PIP5646C

  Date Added:

  February 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that some customers may comment the rear wheels locked up at low speeds after a hot soak. Technicians may find DTC's P2724, P2727 or P2729 set. Technician's are advised to replace the TCM to address this concern.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171293-0001.pdf↗
• January 17, 2020•Document ID: 10171290

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5504C

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information and definitions to the technician about vehicles that have fishbite, chuggle, misfire, AFM disturbances or torque converter shudder/vibration concerns. Technician are advised to use PICO software to determine root cause of the concern. If torque converter shudder is confirmed technicians are referred to Torque Converter Diagnosis in SI.

  Associated Products (25)

  2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon+ 5 more
  Associated Documents

  • DownloadMC-10171290-0001.pdf↗
• January 17, 2020•Document ID: 10171289

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5650B

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates the possibility of DTC P3075 being set current or history due to low coolant level or air trapped in cooling system.

  Associated Products (6)

  2020 Cadillac XT42020 Chevrolet Silverado2020 GMC Sierra2019 Cadillac XT42019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171289-0001.pdf↗
• January 17, 2020•Document ID: 10171288

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5675A

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history.  That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results.

  Associated Products (6)

  2020 Cadillac XT42020 Chevrolet Silverado2020 GMC Sierra2019 Cadillac XT42019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171288-0001.pdf↗
• January 14, 2020•Document ID: 10171905

  Service Bulletin/Repair Instructions
  EQUIPMENT ADAPTIVE/MOBILITY; STEERING

  Mfr Comm. #:

  20NA006

  Date Added:

  March 2, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin explains there is another steering hose that can be used for cold weather drivers that experience a steering hose leak.

  Associated Products (12)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra
  Associated Documents

  • DownloadMC-10171905-0001.pdf↗
• January 14, 2020•Document ID: 10171279

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION

  Mfr Comm. #:

  PIP5700

  Date Added:

  February 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that the part numbers for the internal wiring harnesses for the 8 speed RWD transmissions are not listed in the Electronic Parts Catalog. Technicians are to refer to the information provided in this document to obtain the internal wiring harness part numbers by application.

  Associated Products (53)

  2020 Cadillac CT42020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Cadillac ATS2019 Cadillac CTS2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2018 Cadillac ATS2018 Cadillac CT6+ 33 more
  Associated Documents

  • DownloadMC-10171279-0001.pdf↗
• January 13, 2020•Document ID: 10172292

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  030846004W

  Date Added:

  March 9, 2020

  Manufacturer:

  GMC

  Summary

  This bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar® Vehicle Communication Interface Modules (VCIM) (GMNA Only).

  Associated Products (19)

  2020 Buick Enclave2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Spark2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra2020 GMC Terrain
  Associated Documents

  • DownloadMC-10172292-0001.pdf↗
• January 10, 2020•Document ID: 10171266

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

  Mfr Comm. #:

  PIP5670B

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This preliminary information communicates the part restriction for the diesel turbocharger and EGR components. Updated to provide instruction on gathering additional data.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171266-0001.pdf↗
• January 10, 2020•Document ID: 10171264

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV)

  Mfr Comm. #:

  PIP5503B

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer additional information on checking for the engne crankcase being overfull on oil causing an engine vibration concern. The technician is advised to inspect for contaminnants and adjust the engine oil level as needed.

  Associated Products (53)

  2020 Cadillac Escalade2020 Chevrolet Camaro2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2019 Cadillac CTS2019 Cadillac Escalade2019 Chevrolet Camaro2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2018 Cadillac CTS+ 33 more
  Associated Documents

  • DownloadMC-10171264-0001.pdf↗
• January 8, 2020•Document ID: 10171898

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

  Mfr Comm. #:

  19NA216

  Date Added:

  March 2, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides the tech with a procedure to check the t-case for loose fasteners and to re-torque if the cause of the concern.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171898-0001.pdf↗
• January 8, 2020•Document ID: 10171889

  Service Bulletin/Repair Instructions
  VISIBILITY:GLASS, SIDE/REAR; STRUCTURE:FRAME AND MEMBERS

  Mfr Comm. #:

  18NA383

  Date Added:

  March 2, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of water found in rear interior of cab due to water leak at rear sliding window.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171889-0001.pdf↗
• January 7, 2020•Document ID: 10171258

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

  Mfr Comm. #:

  PIP5689B

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the technician to reprogram the engine control module and, if necessary, diagnose and repair P24B0.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171258-0001.pdf↗
• January 6, 2020•Document ID: 10171893

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:HORN

  Mfr Comm. #:

  19NA160

  Date Added:

  March 2, 2020

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Intermittent or Continuous Horn Blowing, Horn Activation Sensitive to the Touch.

  Associated Products (8)

  2020 Cadillac XT42020 Chevrolet Blazer2020 Chevrolet Silverado2020 GMC Sierra2019 Cadillac XT42019 Chevrolet Blazer2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171893-0001.pdf↗
• January 6, 2020•Document ID: 10171256

  Service Bulletin/Repair Instructions
  SERVICE BRAKES; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5730

  Date Added:

  February 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates repair information on Service Brake System, Reduced Engine Power, and Speed Limited messages on the DIC.  Along with these messages, a SES MIL will be on and the brake pedal may feel hard.  When checking for DTC's the Brake System Control Module (BSCM) with have set a P0606 and C0021. Dealers are to reprogram the BSCM with updated calibrations to correct the concern.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171256-0001.pdf↗