GMC Sierra Service Bulletins (2018)

1,723 manufacturer communications on file.

• October 12, 2020•Document ID: 10183202

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  20NA203

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin explains how the regen works for the DEF system and how it works at different levels.

  Associated Products (6)

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

  • DownloadMC-10183202-0001.pdf↗
• October 9, 2020•Document ID: 10183780

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  060089026Q

  Date Added:

  December 7, 2020

  Manufacturer:

  CADILLAC

  Summary

  This warranty administration bulletin provides information on Warranty Administration - Customer Concern Not Duplicated (CCND) Labor Operation Numbers.

  Associated Products (267)

  2021 Buick Enclave2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe+ 247 more
  Associated Documents

  • DownloadMC-10183780-0001.pdf↗
• October 8, 2020•Document ID: 10182545

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  PIP5628C

  Date Added:

  November 16, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

  Associated Products (801)

  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+ 781 more
  Associated Documents

  • DownloadMC-10182545-0001.pdf↗
• October 7, 2020•Document ID: 10182540

  Service Bulletin/Repair Instructions
  FORWARD COLLISION AVOIDANCE

  Mfr Comm. #:

  PIT5551F

  Date Added:

  November 16, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a "Forward Collision System Reduced" message displayed on the DIC when the Forward Automatic Braking has been set to the "Alert" setting.  This is normal when the FAB has been set to  "Alert".

  Associated Products (98)

  2021 Buick Enclave2021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon XL2020 Buick Enclave2020 Cadillac CT62020 Cadillac Escalade ESV2020 Cadillac XT4+ 78 more
  Associated Documents

  • DownloadMC-10182540-0001.pdf↗
• October 6, 2020•Document ID: 10183206

  Service Bulletin/Repair Instructions
  EXTERIOR LIGHTING; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA207

  Date Added:

  November 30, 2020

  Manufacturer:

  GMC

  Summary

  This service bulletin informs the technician to inspect for a possible electrical concern at the ECM X2 electrical connector to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated - DTC P0333 Set.

  Associated Products (45)

  2019 Chevrolet Suburban2019 Chevrolet Tahoe2018 Cadillac CTS2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Camaro2018 Chevrolet Corvette2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Cadillac CTS2017 Cadillac Escalade2017 Cadillac Escalade ESV2017 Chevrolet Camaro2017 Chevrolet Corvette2017 Chevrolet Silverado2017 Chevrolet Suburban+ 25 more
  Associated Documents

  • DownloadMC-10183206-0001.pdf↗
• October 1, 2020•Document ID: 10183213

  Service Bulletin/Repair Instructions
  ENGINE; SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES

  Mfr Comm. #:

  N182202780-02

  Date Added:

  November 30, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Special Coverage Adjustment - In some circumstances, some 2014-2018 model year Cadillac Escalade, Chevrolet Silverado, Chevrolet Suburban, Chevrolet Tahoe, GMC Sierra, and GMC Yukon vehicles may have a condition where customers may experience increased brake pedal effort, hard brake pedal, and/or potentially increased stopping distance. The condition is more prevalent at low speed when softly applying the brakes. The engine mounted mechanical vacuum pump output may decrease over time decreasing the amount of vacuum/power brake assist. Failure to follow recommended oil change intervals could contribute to this condition. The Driver?s Information Center, (DIC) ?Service brake assist? alert will activate 2-5 minutes after the vacuum level drops, and a Diagnostic Trouble Code, (DTC) will also be set. Even where this condition occurs, the hydraulic brake system remains functional but may require additional pedal force. Dealers are to replace the vacuum pump and vacuum pump belt. The repairs will be made at no charge to the customer.

  Associated Products (35)

  2019 Chevrolet Tahoe2018 Cadillac Escalade2018 Cadillac Escalade ESV2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Cadillac Escalade2017 Cadillac Escalade ESV2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon2017 GMC Yukon XL2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Silverado+ 15 more
  Associated Documents

  • DownloadMC-10183213-0001.pdf↗
• October 1, 2020•Document ID: 10182530

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5586E

  Date Added:

  November 16, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a customer concern of IPC gauges inoperative or fluctuate, No Start, No Crank, SIR Light / Service Airbag Message, Service Suspension Message, Radio display blank, Steering Wheel Controls (SWC) not illuminated, Turn Signal no audible feedback, HVAC controls inoperative. During diagnostics a technician may find any of the following DTC's: B1011, B1370, B3980, U0020, U0029, U007D, U0073, U0078, U0100, U0101, U0102, U0104, U0140, U0151, U0155, U0164, U0184, U0186, U0198, U0422. Dealer is instructed to check for logic lock of Serial Data Gateway Module or for Serial Data Gateway Module X1 and X2 connectors having terminal concerns and repair as needed.

  Associated Products (23)

  2020 Cadillac Escalade2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Yukon2019 Cadillac Escalade2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2018 Cadillac Escalade2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Cadillac Escalade2017 Chevrolet Silverado2017 Chevrolet Suburban+ 3 more
  Associated Documents

  • DownloadMC-10182530-0001.pdf↗
• September 30, 2020•Document ID: 10181724

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

  Mfr Comm. #:

  110089005P

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only).

  Associated Products (369)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe+ 349 more
  Associated Documents

  • DownloadMC-10181724-0001.pdf↗
• September 29, 2020•Document ID: 10181675

  Service Bulletin/Repair Instructions
  STRUCTURE:BODY; EQUIPMENT

  Mfr Comm. #:

  18NA306

  Date Added:

  October 26, 2020

  Manufacturer:

  CADILLAC

  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 (400)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer+ 380 more
  Associated Documents

  • DownloadMC-10181675-0001.pdf↗
• September 23, 2020•Document ID: 10181720

  Service Bulletin/Repair Instructions
  EQUIPMENT; FUEL SYSTEM, GASOLINE:STORAGE:EVAPORATIVE EMISSIONS:HOSES/VALVES/SENSORS

  Mfr Comm. #:

  20NA197

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern.

  Associated Products (8)

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

  • DownloadMC-10181720-0001.pdf↗
• September 23, 2020•Document ID: 10181672

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  18NA161

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure for testing the battery cables for voltage drop, Checking for a bad ground at g218, Inspecting for a short at the starter B+ to shield and testing for a faulty battery.

  Associated Products (48)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 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 Suburban2018 Chevrolet Tahoe2018 GMC Sierra+ 28 more
  Associated Documents

  • DownloadMC-10181672-0001.pdf↗
• September 22, 2020•Document ID: 10181707

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

  Mfr Comm. #:

  20NA181

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to program the ECM if found the cause of the customers complaint.

  Associated Products (6)

  2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra
  Associated Documents

  • DownloadMC-10181707-0001.pdf↗
• September 18, 2020•Document ID: 10181687

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA055

  Date Added:

  October 26, 2020

  Manufacturer:

  CADILLAC

  Summary

  This technical bulletin provides a procedure to correct customer concerns of Instrument Panel Cluster (IPC) Gauges Inoperative, Numerous Driver information Center (DIC) Error Messages, No Brake or Electric Power Steering Assist, Transmission in Default Gear, No Reverse and/or Back Up Lights, No Daytime Running Lights (DRL), No Cruise or Adaptive Cruise and/or No Trailer Brake Lights.

  Associated Products (31)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Camaro2020 Chevrolet Express2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac ATS2019 Cadillac CTS2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Camaro2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL+ 11 more
  Associated Documents

  • DownloadMC-10181687-0001.pdf↗
• September 17, 2020•Document ID: 10181695

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA157

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.

  Associated Products (168)

  2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Canyon+ 148 more
  Associated Documents

  • DownloadMC-10181695-0001.pdf↗
• September 10, 2020•Document ID: 10181711

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

  Mfr Comm. #:

  20NA185

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This technical procedure provides a procedure to replace the front oil crank seal on remanufactured engines only, if found the cause of the customers concern.

  Associated Products (13)

  2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 Chevrolet Tahoe2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL2014 Chevrolet Silverado2014 GMC Sierra
  Associated Documents

  • DownloadMC-10181711-0001.pdf↗
• September 9, 2020•Document ID: 10181693

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

  Mfr Comm. #:

  20NA142

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This Technical bulletin provides a repair to correct a condition of Shudder/Surging While Driving.

  Associated Products (35)

  2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 GMC Savana2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Chevrolet Express2017 Chevrolet Silverado2017 Chevrolet Suburban2017 GMC Savana2017 GMC Sierra2017 GMC Yukon+ 15 more
  Associated Documents

  • DownloadMC-10181693-0001.pdf↗
• September 9, 2020•Document ID: 10181676

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  18NA361

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to flush the cooler lines to validate if there is excessive debris in the fuel system caused by a failed part.

  Associated Products (18)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Silverado2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Cruze2018 Chevrolet Equinox2018 Chevrolet Silverado2018 GMC Sierra2018 GMC Terrain2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Cruze2014 Chevrolet Cruze
  Associated Documents

  • DownloadMC-10181676-0001.pdf↗
• September 9, 2020•Document ID: 10181674

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  18NA253

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin advised the technician to take the vehicle for a test drive to validate a possible normal TCC performance while under heavy specific driving maneuvers.

  Associated Products (18)

  2020 Chevrolet Express2020 GMC Savana2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Savana2019 GMC Sierra2018 Chevrolet Express2018 Chevrolet Silverado2018 GMC Savana2018 GMC Sierra2017 Chevrolet Express2017 Chevrolet Silverado2017 GMC Savana2017 GMC Sierra2016 Chevrolet Express2016 Chevrolet Silverado2016 GMC Savana2016 GMC Sierra
  Associated Documents

  • DownloadMC-10181674-0001.pdf↗
• September 9, 2020•Document ID: 10181713

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20NA187

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a repair procedure to correct a customer concern of Delayed and/or Harsh Engagement of Transmission Shift After Vehicle Sitting with Engine Off.

  Associated Products (33)

  2021 Cadillac CT42021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Silverado2021 GMC Canyon2021 GMC Savana2021 GMC Sierra2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Sierra2019 Cadillac ATS2019 Cadillac CT62019 Cadillac CTS2019 Chevrolet Camaro2019 Chevrolet Colorado2019 Chevrolet Corvette2019 Chevrolet Express+ 13 more
  Associated Documents

  • DownloadMC-10181713-0001.pdf↗
• September 3, 2020•Document ID: 10181704

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA176

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to update the GPCM if found the cause of the customers concern.

  Associated Products (8)

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

  • DownloadMC-10181704-0001.pdf↗