GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• July 23, 2020•Document ID: 10178951

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:DIESEL

  Mfr Comm. #:

  17NA374

  Date Added:

  August 31, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.

  Associated Products (8)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra
  Associated Documents

  • DownloadMC-10178951-0001.pdf↗
• July 22, 2020•Document ID: 10178959

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  19NA255

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

  Associated Products (103)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL+ 83 more
  Associated Documents

  • DownloadMC-10178959-0001.pdf↗
• July 22, 2020•Document ID: 10178378

  Service Bulletin/Repair Instructions
  POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; EQUIPMENT

  Mfr Comm. #:

  PIP5653G

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178378-0001.pdf↗
• July 16, 2020•Document ID: 10178373

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

  Mfr Comm. #:

  PIP5655B

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that the 10L1000 transmission have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178373-0001.pdf↗
• July 15, 2020•Document ID: 10179529

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0562A

  Date Added:

  September 8, 2020

  Manufacturer:

  GMC

  Summary

  This engineering information (EI) revision ends the need for information from the field regarding Check Trailer Message on Drivers Information Center (DIC) and/or F74, F82 Fuses Blown.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10179529-0001.pdf↗
• July 15, 2020•Document ID: 10179407

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM

  Mfr Comm. #:

  070842006O

  Date Added:

  September 8, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides technicians with information on available BCM calibrations to restore bulb outage detection on vehicles produced by a second stage manufacturer (Upfitter), and/or turn signals flash fast after factory box removed.

  Associated Products (28)

  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 Sierra2013 Chevrolet Silverado2013 GMC Sierra2012 Chevrolet Silverado2012 GMC Sierra2011 Chevrolet Silverado2011 GMC Sierra+ 8 more
  Associated Documents

  • DownloadMC-10179407-0001.pdf↗
• July 13, 2020•Document ID: 10179536

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; ENGINE

  Mfr Comm. #:

  PIE0574

  Date Added:

  September 8, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from technicians to inspect for engine oil leak and contact the engineer listed.

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10179536-0001.pdf↗
• July 13, 2020•Document ID: 10179535

  Service Bulletin/Repair Instructions
  STRUCTURE; SUSPENSION

  Mfr Comm. #:

  PIE0573

  Date Added:

  September 8, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering information (EI) is requesting information from technicians to perform the inspection and verify that the rear axle dampener (TVA) is loose after a loud banging noise is heard from the rear of the vehicle while in motion and contact the engineer listed.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10179535-0001.pdf↗
• July 13, 2020•Document ID: 10178370

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

  Mfr Comm. #:

  PIP5684B

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the use of air leak diagnostic test tool CH-52250 in addition to the information found in the service manual.

  Associated Products (361)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Buick Cascada2018 Buick Enclave2018 Buick Encore2018 Buick Envision2018 Buick LaCrosse2018 Buick Regal2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Cadillac XT52018 Cadillac XTS2018 Chevrolet 4500HD+ 341 more
  Associated Documents

  • DownloadMC-10178370-0001.pdf↗
• July 10, 2020•Document ID: 10179408

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

  Mfr Comm. #:

  150089002B

  Date Added:

  September 8, 2020

  Manufacturer:

  GMC

  Summary

  This bulletin provides information to dealers regarding transportation damage repair claim submission requirements.

  Associated Products (238)

  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+ 218 more
  Associated Documents

  • DownloadMC-10179408-0001.pdf↗
• July 10, 2020•Document ID: 10178367

  Service Bulletin/Repair Instructions
  POWER TRAIN; ENGINE

  Mfr Comm. #:

  PIP5504F

  Date Added:

  August 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 (40)

  2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe+ 20 more
  Associated Documents

  • DownloadMC-10178367-0001.pdf↗
• July 9, 2020•Document ID: 10178963

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, AIR:DISC:PADS

  Mfr Comm. #:

  20NA020

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulleti provides a procedure to replace the front and rear brake pads if the brakes are squealing.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178963-0001.pdf↗
• July 9, 2020•Document ID: 10178366

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5737B

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates an XM service concern of no audio at startup until a channel change and directs to contact XM for direct support.

  Associated Products (11)

  2020 Buick Enclave2020 Buick Encore2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Silverado2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178366-0001.pdf↗
• July 8, 2020•Document ID: 10179531

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0566A

  Date Added:

  September 8, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the Malfunction Indicator Lamp (MIL) Illuminated and/or functional failures of the Airflow Shutter.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10179531-0001.pdf↗
• July 8, 2020•Document ID: 10179530

  Service Bulletin/Repair Instructions
  ENGINE; ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIE0563B

  Date Added:

  September 8, 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 to oil leaking from the oil pan.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10179530-0001.pdf↗
• July 8, 2020•Document ID: 10178975

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  20NA141

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of the Tri-Fold Tonneau paint finish fading or discolored.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178975-0001.pdf↗
• July 1, 2020•Document ID: 10179532

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  PIE0567A

  Date Added:

  September 8, 2020

  Manufacturer:

  BUICK

  Summary

  This engineering information (EI) ends the needs for information from the field regarding SD Code messages displayed on the Radio Screen and/or Instrument Cluster - Navigation System Malfunction.

  Associated Products (11)

  2020 Buick Enclave2020 Buick Encore2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Silverado2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra
  Associated Documents

  • DownloadMC-10179532-0001.pdf↗
• June 30, 2020•Document ID: 10178360

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM:WIRING

  Mfr Comm. #:

  PIT5751A

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates and issue with the SES MIL on setting DTC's P0201/P0202/P0203/P0204/P0205/P0206/P0216 and instructing dealership to inspect the engine wiring harness for damage.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178360-0001.pdf↗
• June 26, 2020•Document ID: 10178357

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5756

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with the underhood electrical center bolts being loose which can cause any of the following symptoms: - No crank - No start - Starter grinds or reengages after engine running - Headlights flicker or flash - SES MIL - IPC gauges sweep/fluctuate and various IPC warning lights or messages - High or low system voltage Some of these concerns may be notices with powertrain movement, like when either accelerating or braking.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178357-0001.pdf↗
• June 26, 2020•Document ID: 10178356

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5755

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with the Electronic Brake Control Module incorrectly mapping DTC U0126 as a U0131 and directs the dealership to follow the diagnostics for the U0126.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178356-0001.pdf↗