GMC Sierra Service Bulletins

10,018 manufacturer communications on file.

• 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 29, 2020•Document ID: 10178359

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:WIRING; ELECTRICAL SYSTEM: INTEGRATED TRAILER BRAKE CONTROL

  Mfr Comm. #:

  PIT5311F

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have an intermittent "Check Trailer Wiring" or "Service Trailer Brake" message on the Driver Information Center. Technician will inspect and clean the ground wire (normally white wire) connection on the trailer side of the 7-pin connector. Inspect that the wires inside the trailer side connector are clean and securely fastened. If the vehicle?s 7-way connector socket terminals are deformed or have excessive wear, it will be necessary to replace the truck side connector with part number 23404450.

  Associated Products (36)

  2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Yukon2020 GMC Yukon XL2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra+ 16 more
  Associated Documents

  • DownloadMC-10178359-0001.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↗
• June 26, 2020•Document ID: 10178353

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  PIT3665J

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication advises the technician that the Hydro-Boost is not serviceable and will need to be replaced if the brake pedal moves or applies on its own at a full turn.

  Associated Products (120)

  2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Savana2020 GMC Sierra2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 GMC Savana2019 GMC Sierra2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 GMC Savana2018 GMC Sierra2017 Chevrolet Express2017 Chevrolet Silverado2017 Chevrolet Suburban2017 GMC Savana2017 GMC Sierra2016 Chevrolet Express+ 100 more
  Associated Documents

  • DownloadMC-10178353-0001.pdf↗
• June 26, 2020•Document ID: 10178352

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  PIP4902N

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (355)

  2018 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 4500HD2018 Chevrolet 5500HD2018 Chevrolet Aveo2018 Chevrolet Bolt EV2018 Chevrolet Camaro2018 Chevrolet Colorado2018 Chevrolet Corvette+ 335 more
  Associated Documents

  • DownloadMC-10178352-0001.pdf↗
• June 26, 2020•Document ID: 10178350

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP4912G

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician on vehicles that may have an intermittent high idle. If a technician has duplicated, or the customer description aligns with the speeds mentioned in the idle speed description tables, the idle speed should be considered a normal characteristic of current vehicle design.

  Associated Products (34)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Express2016 Chevrolet Silverado2016 GMC Savana2016 GMC Sierra2015 Chevrolet Express2015 Chevrolet Silverado2015 GMC Savana2015 GMC Sierra2014 Chevrolet Express2014 Chevrolet Silverado2014 GMC Savana2014 GMC Sierra+ 14 more
  Associated Documents

  • DownloadMC-10178350-0001.pdf↗
• June 25, 2020•Document ID: 10178345

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5504E

  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 (35)

  2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Savana2018 GMC Sierra+ 15 more
  Associated Documents

  • DownloadMC-10178345-0001.pdf↗
• June 25, 2020•Document ID: 10178282

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA132

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.

  Associated Products (241)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 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 Equinox2020 Chevrolet Express2020 Chevrolet Malibu+ 221 more
  Associated Documents

  • DownloadMC-10178282-0001.pdf↗
• June 25, 2020•Document ID: 10178253

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

  Mfr Comm. #:

  17NA166

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to measure vibration and install engine mounts to correct a Rough Idle in Drive concern.

  Associated Products (42)

  2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Suburban2019 Chevrolet Tahoe2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2017 Cadillac Escalade2017 Cadillac Escalade ESV2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon2017 GMC Yukon XL2016 Cadillac Escalade2016 Cadillac Escalade ESV+ 22 more
  Associated Documents

  • DownloadMC-10178253-0001.pdf↗
• June 24, 2020•Document ID: 10207730

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  N192285071

  Date Added:

  February 7, 2022

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program. As part of equipment recall N192285070, GM instructed dealers to remove recalled tri-fold tonneau covers on certain vehicles prior to delivery to the customer. GM is conducting this customer satisfaction field action to provide these customers with the improved tonneau cover system for their vehicle. Dealers will replace the tonneau rails and clamps and add a tether to prevent the tonneau from detaching onto the roadway even if improperly installed. If the vehicle was covered by equipment recall 19E031 (N192217500), the dealer will also confirm that the repair for equipment recall 19E031 (N192217500) was correctly performed.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10207730-0001.pdf↗
• June 24, 2020•Document ID: 10178268

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; ENGINE

  Mfr Comm. #:

  20NA100

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information for dealers/technicians on Engine Control Module Calibration for T1 L3B Engine with DTC P26BB Set.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178268-0001.pdf↗
• June 23, 2020•Document ID: 10178343

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5509G

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician on how to diagnose and repair vehicle that may have a "Check Trailer Wiring" or "Service Trailer Brake System? message on the Driver Information Center when a trailer is connected to the vehicle. Diagnostic Trouble Code C1114 set in the Chassis Control Module. Chassis Control Module has to determine the type of trailer brake system that is being used. The Chassis Control Module can be sensitive to a variety of trailer wiring issues. The technician will need to make a trailer tester using Electric Trailer Brake Magnets and 7-way trailer connector to determine if it is a vehicle or trailer issue. If the concern is not duplicated with the tester installed, the vehicle is operating correctly and the focus should be on the trailer wiring or 7 way connector.

  Associated Products (44)

  2020 Chevrolet Colorado2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Canyon2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Colorado2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Canyon2019 GMC Sierra2019 GMC Yukon2018 Chevrolet Colorado2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Canyon2018 GMC Sierra+ 24 more
  Associated Documents

  • DownloadMC-10178343-0001.pdf↗
• June 23, 2020•Document ID: 10178341

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5742

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technicians that a belt chirp or rubbing noise may be caused by the harmonic balancer out ring moving backward on the pulley and contacting the front cover.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178341-0001.pdf↗
• June 23, 2020•Document ID: 10178288

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20NA138

  Date Added:

  August 10, 2020

  Manufacturer:

  PONTIAC

  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 (651)

  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 Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Impala2020 Chevrolet Malibu+ 631 more
  Associated Documents

  • DownloadMC-10178288-0001.pdf↗
• June 22, 2020•Document ID: 10178340

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5741

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that if after replacing the valve body on an 8L45 or 8L90 transmission the vehicle will not move the valve body may be missing a plug and retainer bolt. Technician's are instructed to obtain and install a plug and retainer bolt kit from the GM Warranty Parts Center to address this concern.

  Associated Products (38)

  2018 Cadillac ATS2018 Cadillac CT62018 Cadillac CTS2018 Cadillac Escalade2018 Chevrolet Camaro2018 Chevrolet Corvette2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Tahoe2018 GMC Savana2018 GMC Sierra2018 GMC Yukon2017 Cadillac ATS2017 Cadillac CT62017 Cadillac CTS2017 Cadillac Escalade2017 Chevrolet Camaro2017 Chevrolet Corvette2017 Chevrolet Express2017 Chevrolet Silverado+ 18 more
  Associated Documents

  • DownloadMC-10178340-0001.pdf↗
• June 22, 2020•Document ID: 10178337

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIT5689B

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarly on hold while PIE0572 is active. Will review for deletion or update when PIE0572 ends.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178337-0001.pdf↗