GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• November 1, 2019•Document ID: 10169635

  Service Bulletin/Repair Instructions
  EQUIPMENT; FUEL SYSTEM, GASOLINE; ENGINE

  Mfr Comm. #:

  N192273400

  Date Added:

  December 30, 2019

  Manufacturer:

  CHEVROLET

  Summary

  N192273400 - Service Update. Certain LD vehicles may have a condition in which the right-hand side, positive crankcase ventilation (PCV) tube may not be fully seated (loose), allowing unrestricted blow-by gases to release to the atmosphere. Customers may experience a whistling sound, or there may be an audible air leak. Disconnection of this line is monitored through the fuel trim diagnostics, and in a worst-case scenario, the customer may experience a check engine light with DTC codes P0171 and/or P0174. Dealers are to inspect and ensure the PCV tube to the right-hand rocker is fully seated and secure.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10169635-0001.pdf↗
• October 30, 2019•Document ID: 10168210

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  120851002K

  Date Added:

  November 25, 2019

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides technicians and dealership personnel with spray-in bed liner general information and repair procedures.

  Associated Products (26)

  2020 Chevrolet Colorado2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Colorado2018 Chevrolet Silverado2018 GMC Canyon2018 GMC Sierra2017 Chevrolet Colorado2017 Chevrolet Silverado2017 GMC Canyon2017 GMC Sierra2016 Chevrolet Colorado2016 Chevrolet Silverado2016 GMC Canyon2016 GMC Sierra2015 Chevrolet Colorado2015 Chevrolet Silverado+ 6 more
  Associated Documents

  • DownloadMC-10168210-0001.pdf↗
• October 29, 2019•Document ID: 10168212

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  990420002K

  Date Added:

  November 25, 2019

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.

  Associated Products (428)

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  Associated Documents

  • DownloadMC-10168212-0001.pdf↗
• October 29, 2019•Document ID: 10167470

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

  Mfr Comm. #:

  PIP5670A

  Date Added:

  November 12, 2019

  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-10167470-0001.pdf↗
• October 29, 2019•Document ID: 10167468

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5668A

  Date Added:

  November 12, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician the coolant control valve is on restriction.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10167468-0001.pdf↗
• October 28, 2019•Document ID: 10167464

  Service Bulletin/Repair Instructions
  EQUIPMENT:APPLIANCE:AIR CONDITIONER

  Mfr Comm. #:

  PIP5686

  Date Added:

  November 12, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates A vehicle may come into the dealer with a rough idle, lean running concern and/or air leak noise from the PCV system. Upon inspection the technician may find the SES lamp is illuminated and/or DTC?s P0171 and/or P0174 may be in active or stored history. This condition may be caused by an incorrectly installed foul air PCV tube or tube may be damaged

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10167464-0001.pdf↗
• October 25, 2019•Document ID: 10168216

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0515A

  Date Added:

  November 25, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information for checking for DTCs and the voltage (relative to a ground) on BOTH sides of the 400A starter fuse in the Battery Distribution Engine Compartment Fuse Block.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10168216-0001.pdf↗
• October 25, 2019•Document ID: 10167461

  Service Bulletin/Repair Instructions
  VEHICLE SPEED CONTROL:ACCELERATOR PEDAL

  Mfr Comm. #:

  PIT5392D

  Date Added:

  November 12, 2019

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have a detent / click with a feel of increased resistance when the accelerator pedal is about ¾ of the way. The new accelerator pedal design has a built-in detent position near the last 1/4 of pedal travel. Dealer should communicate to the customer this is a normal operating characteristic of the vehicle and no repair attempts should be performed.

  Associated Products (30)

  2020 Cadillac Escalade ESV2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon XL2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2018 Cadillac Escalade ESV2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Cadillac Escalade ESV2017 Chevrolet Silverado+ 10 more
  Associated Documents

  • DownloadMC-10167461-0001.pdf↗
• October 25, 2019•Document ID: 10167458

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  PIT5161G

  Date Added:

  November 12, 2019

  Manufacturer:

  GMC

  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 (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-10167458-0001.pdf↗
• October 23, 2019•Document ID: 10167457

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIP5685

  Date Added:

  November 12, 2019

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates A vehicle with a customer concern of a SES P0128, Engineering is aware of the concern and working on the a repair.  At this time clear the codes and do not replace the thermostat for this concern. There will be a calibration released for the concern in this near future. This PI will be updated when the calibration is released.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10167457-0001.pdf↗
• October 21, 2019•Document ID: 10168200

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  19NA240

  Date Added:

  November 25, 2019

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of steering wheel oscillation, vibration, shake 50-80 mph.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10168200-0001.pdf↗
• October 17, 2019•Document ID: 10168197

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, DIESEL

  Mfr Comm. #:

  19NA237

  Date Added:

  November 25, 2019

  Manufacturer:

  GMC

  Summary

  This informational bulletin explains how to identify possible DEF contamination.

  Associated Products (63)

  2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2020 GMC Terrain2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Express2018 Chevrolet Silverado2018 GMC Canyon+ 43 more
  Associated Documents

  • DownloadMC-10168197-0001.pdf↗
• October 17, 2019•Document ID: 10167450

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5715

  Date Added:

  November 12, 2019

  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 (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10167450-0001.pdf↗
• October 17, 2019•Document ID: 10167449

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5702A

  Date Added:

  November 12, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communication provides information to the technician on installing Regular Production Option Code 9L7 Up-fitter Auxiliary Switches. Technician will need to reference the latest version of General Motors Up-fitter Integration Bulletin 153. The information can be found at http://www.gmupfitter.com/ under the "Technical Bulletin" Tab and then "Show all bulletins."

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10167449-0001.pdf↗
• October 17, 2019•Document ID: 10167448

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5370E

  Date Added:

  November 12, 2019

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that some vehicle may have an ?Exhaust Fluid Quality Poor? on the Driver Information Center or a diesel exhaust fluid warning lamp on or other exhaust fluid quality related concerns. Technician will inspect the diesel exhaust fluid for contamination. Technician should use Service Information for Contaminants in Diesel Exhaust Fluid Diagnosis and use special tool J26568 or EN50422 Diesel Exhaust Fluid Refractometer for fluid testing.

  Associated Products (64)

  2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Express2018 Chevrolet Silverado+ 44 more
  Associated Documents

  • DownloadMC-10167448-0001.pdf↗
• October 16, 2019•Document ID: 10168237

  Service Bulletin/Repair Instructions
  EQUIPMENT:APPLIANCE:AIR CONDITIONER

  Mfr Comm. #:

  19NA231

  Date Added:

  November 25, 2019

  Manufacturer:

  GMC

  Summary

  This informational bulletin informs the technician of a possible low A/C charge in a low milage vehicle from the factory.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10168237-0001.pdf↗
• October 16, 2019•Document ID: 10168207

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

  Mfr Comm. #:

  100089006G

  Date Added:

  November 25, 2019

  Manufacturer:

  PONTIAC

  Summary

  This informational bulletin provides information for dealers how to submit a product information report (PIR) (Canada Only).

  Associated Products (811)

  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 Express2020 Chevrolet Impala+ 791 more
  Associated Documents

  • DownloadMC-10168207-0001.pdf↗
• October 15, 2019•Document ID: 10167438

  Service Bulletin/Repair Instructions
  PARKING BRAKE

  Mfr Comm. #:

  PIT5657B

  Date Added:

  November 12, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates how to repair a loose shift cable bracket.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10167438-0001.pdf↗
• October 14, 2019•Document ID: 10168238

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

  Mfr Comm. #:

  19NA232

  Date Added:

  November 25, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides tips for showing a way to confirm if its a mechanical engine issue or not.

  Associated Products (8)

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

  • DownloadMC-10168238-0001.pdf↗
• October 14, 2019•Document ID: 10168209

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

  Mfr Comm. #:

  100605002H

  Date Added:

  November 25, 2019

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information on Clean Exhaust Filter See Owners Manual Now or Cleaning Exhaust Filter Keep Driving Until Message is Cleared messages Displayed on DIC, DTC P2463 May Be Set.

  Associated Products (75)

  2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Express2018 Chevrolet Silverado+ 55 more
  Associated Documents

  • DownloadMC-10168209-0001.pdf↗