GMC Sierra Service Bulletins (2020)

1,991 manufacturer communications on file.

• February 6, 2020•Document ID: 10172312

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; LANE DEPARTURE: LANE KEEP: STEERING ASSIST

  Mfr Comm. #:

  PIT5721A

  Date Added:

  March 9, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have Lane Keep Assist inoperative with the lane keep assist switch LED is always on and the lane keep assist Icon is not illuminated on the IPC after a programming event. Technician will need to ensure that the Front View Camera Module has been properly SPS programmed and SPS configured. Technician will also perform the "Front View Camera Module Calibration" procedure using Global Diagnostic System 2.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10172312-0001.pdf↗
• February 5, 2020•Document ID: 10172308

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

  Mfr Comm. #:

  PIT5636B

  Date Added:

  March 9, 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-10172308-0001.pdf↗
• February 4, 2020•Document ID: 10172304

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  PIT5411S

  Date Added:

  March 9, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.

  Associated Products (19)

  2020 Buick Enclave2020 Cadillac CT42020 Cadillac CT52020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Sonic2020 Chevrolet Traverse2020 Chevrolet Trax2020 GMC Acadia2020 GMC Canyon2020 GMC Sierra2020 GMC Terrain
  Associated Documents

  • DownloadMC-10172304-0001.pdf↗
• February 4, 2020•Document ID: 10172303

  Service Bulletin/Repair Instructions
  EQUIPMENT; POWER TRAIN

  Mfr Comm. #:

  PIP5677B

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

  Associated Products (6)

  2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Chevrolet Camaro2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172303-0001.pdf↗
• January 31, 2020•Document ID: 10171316

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5689C

  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-10171316-0001.pdf↗
• January 31, 2020•Document ID: 10172883

  Service Bulletin/Repair Instructions
  VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM

  Mfr Comm. #:

  DOR-D8C4T-03

  Date Added:

  March 30, 2020

  Manufacturer:

  GMC

  Summary

  This SKU is a Power Window Regulator and Motor Assembly. The customer communication requested return of unsold inventory to inspect the software. The software may be too sensitive to the position of a locating magnet in the assembly causing the activation of the pinch point threshold prematurely. The window will stay open when it should have closed.

  Associated Products (53)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Silverado2018 Chevrolet Suburban+ 33 more
  Associated Documents

  • DownloadMC-10172883-0001.pdf↗
• January 29, 2020•Document ID: 10172294

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  110089002D

  Date Added:

  March 9, 2020

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides information on GM Accessories ? Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.

  Associated Products (245)

  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 Equinox+ 225 more
  Associated Documents

  • DownloadMC-10172294-0001.pdf↗
• January 29, 2020•Document ID: 10172290

  Service Bulletin/Repair Instructions
  BACK OVER PREVENTION; WHEELS

  Mfr Comm. #:

  20NA022

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to re-torque the leaf spring u bolts to correct a condition of Clunking Noise from Rear of Vehicle (Re-torque Leaf Spring Bolts).

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10172290-0001.pdf↗
• January 29, 2020•Document ID: 10172289

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  20NA021

  Date Added:

  March 9, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides repair information to correct a customer concern of Intermittent "Service Steering Column Lock" message displayed with U0155 Set.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10172289-0001.pdf↗
• January 29, 2020•Document ID: 10171312

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5706

  Date Added:

  February 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to the dealer a condition with the throttle body that may illuminate the service engine soon light, cause the engine to run rough and/or display reduced engine power message. Dealers are instructed to replace the throttle body assembly and install a grounding wire from the throttle body to the valve cover to prevent future failures.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171312-0001.pdf↗
• January 28, 2020•Document ID: 10172297

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0515B

  Date Added:

  March 9, 2020

  Manufacturer:

  GMC

  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-10172297-0001.pdf↗
• January 28, 2020•Document ID: 10172288

  Service Bulletin/Repair Instructions
  SERVICE BRAKES, HYDRAULIC

  Mfr Comm. #:

  20NA020

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin 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-10172288-0001.pdf↗
• January 28, 2020•Document ID: 10171896

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  19NA212

  Date Added:

  March 2, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This diagnostic tip provides a procedure to aid in performing a diagnostic test to verify if the camshaft alignment pin has been sheared away to correct a crank/No Start condition.

  Associated Products (93)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet 4500HD2020 Chevrolet Camaro2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet 35002019 Chevrolet 4500HD2019 Chevrolet Camaro2019 Chevrolet Corvette2019 Chevrolet Express+ 73 more
  Associated Documents

  • DownloadMC-10171896-0001.pdf↗
• January 28, 2020•Document ID: 10171431

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  N192278640

  Date Added:

  February 18, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Service Update Bulletin - Certain 2020 model year Chevrolet Silverado and GMC Sierra vehicles equipped with a 2.7L Engine (RPO ENL), Engine Control Disable Start/Stop (RPO L3B), and a 3.5? Driver?s Information Center Display (RPO UDC), may have a condition where the start/stop disabling function does not work. Dealers will reprogram the engine control module (ECM) with an updated calibration.

  Associated Products (2)

  2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10171431-0001.pdf↗
• January 27, 2020•Document ID: 10172300

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIE0549A

  Date Added:

  March 9, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This engineering informational bulletin is requesting information from the field on no crank / no start issue resulting in a starter replacement due to the solenoid overheating.

  Associated Products (6)

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

  • DownloadMC-10172300-0001.pdf↗
• January 27, 2020•Document ID: 10172293

  Service Bulletin/Repair Instructions
  EQUIPMENT; WHEELS

  Mfr Comm. #:

  050307009I

  Date Added:

  March 9, 2020

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin provides retail, wholesale and fleet personnel with General Motors recommendations for customer concerns related to wheel alignment.

  Associated Products (640)

  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+ 620 more
  Associated Documents

  • DownloadMC-10172293-0001.pdf↗
• January 24, 2020•Document ID: 10171305

  Service Bulletin/Repair Instructions
  STRUCTURE; POWER TRAIN

  Mfr Comm. #:

  PIP5705

  Date Added:

  February 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates A vehicle may have a concern of a vibration or drone around 40 MPH and 1200 RPM under a light load.  Debris in the tranmission mount. Inspect the transmission mount for debris. If debris is found, clean the mount, reinstall and evaluate for the concern.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10171305-0001.pdf↗
• January 23, 2020•Document ID: 10171875

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

  Mfr Comm. #:

  15NA010

  Date Added:

  March 2, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides information to dealership personnel for new vehicles with less than 1,000 miles that may not pass California smog inspection or smog inspection in other states.

  Associated Products (234)

  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 Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox+ 214 more
  Associated Documents

  • DownloadMC-10171875-0001.pdf↗
• January 23, 2020•Document ID: 10171300

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5411R

  Date Added:

  February 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.

  Associated Products (19)

  2020 Buick Enclave2020 Cadillac CT42020 Cadillac CT52020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Sonic2020 Chevrolet Traverse2020 Chevrolet Trax2020 GMC Acadia2020 GMC Canyon2020 GMC Sierra2020 GMC Terrain
  Associated Documents

  • DownloadMC-10171300-0001.pdf↗
• January 22, 2020•Document ID: 10171887

  Service Bulletin/Repair Instructions
  LATCHES/LOCKS/LINKAGES:DOORS:LATCH; STRUCTURE:BODY:DOOR

  Mfr Comm. #:

  18NA279

  Date Added:

  March 2, 2020

  Manufacturer:

  BUICK

  Summary

  This informational bulletin provides information for dealers/technicians on the process to disable and enable passive unlocking.

  Associated Products (45)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Spark2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 Chevrolet Traverse2020 Chevrolet Trax+ 25 more
  Associated Documents

  • DownloadMC-10171887-0001.pdf↗