Chevrolet Silverado Service Bulletins (2018)

1,747 manufacturer communications on file.

• 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: 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: 10178336

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5740

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to the dealer an issue where a customer may have incorrectly received a notification advising of a starting syetem issue with their veihcle. Dealer advised to inspect for a legitimate issue, if one found, diagnose accordingly.

  Associated Products (35)

  2020 Cadillac Escalade2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Yukon2019 Cadillac Escalade2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Acadia2019 GMC Sierra2019 GMC Yukon2018 Cadillac Escalade2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Cadillac Escalade2017 Chevrolet Equinox2017 Chevrolet Silverado+ 15 more
  Associated Documents

  • DownloadMC-10178336-0001.pdf↗
• June 22, 2020•Document ID: 10178289

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA139

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure to check and tighten the B+ at the starter for proper torque.

  Associated Products (6)

  2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL
  Associated Documents

  • DownloadMC-10178289-0001.pdf↗
• June 15, 2020•Document ID: 10178293

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  990089019T

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.

  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-10178293-0001.pdf↗
• June 12, 2020•Document ID: 10178324

  Service Bulletin/Repair Instructions
  EQUIPMENT; EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  PIT5564C

  Date Added:

  August 10, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue with aftermarket USB chargers causing SIR DTC's to set.

  Associated Products (99)

  2020 Cadillac Escalade ESV2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac Escalade ESV2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL2018 Cadillac Escalade ESV2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Cadillac Escalade ESV+ 79 more
  Associated Documents

  • DownloadMC-10178324-0001.pdf↗
• June 12, 2020•Document ID: 10178323

  Service Bulletin/Repair Instructions
  EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION; ELECTRICAL SYSTEM; SERVICE BRAKES; EQUIPMENT ADAPTIVE/MOBILITY

  Mfr Comm. #:

  PIT5206G

  Date Added:

  August 10, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages ? Brake Pedal Override Feature ?, transmission busy or frequent shifting up or down, and Diagnostic Trouble Codes P057B, P057C, and/or P057D may or may not be set. Technician will use this preliminary information to find the brake pedal position data parameters in the scan tool, and also to provide some additional diagnostic help. These issues may be caused by an incorrect brake pedal position sensor input to the engine control module. Technician will verify with the scan tool if the engine control module has the correct parameters for the brake pedal position sensor. If an engine control module brake pedal position sensor relearn is performed, the truck may be temporarily repaired until the intermittent wiring issue between the engine control module and brake pedal position sensor occurs again. On 2014 and newer trucks inspect and repair any damage to X115 and X119. On the 2014 and previous trucks inspect and repair any damage to X205.

  Associated Products (68)

  2020 Cadillac Escalade ESV2020 Chevrolet Express2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Yukon XL2019 Cadillac Escalade ESV2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2018 Cadillac Escalade ESV2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Savana+ 48 more
  Associated Documents

  • DownloadMC-10178323-0001.pdf↗
• June 11, 2020•Document ID: 10178320

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  PIP5733

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history.  Under Investigation

  Associated Products (15)

  2020 Cadillac Escalade2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Terrain2020 GMC Yukon2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra
  Associated Documents

  • DownloadMC-10178320-0001.pdf↗
• June 11, 2020•Document ID: 10178270

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE

  Mfr Comm. #:

  20NA110

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump.

  Associated Products (33)

  2020 Chevrolet Colorado2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2020 GMC Terrain2019 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 Express+ 13 more
  Associated Documents

  • DownloadMC-10178270-0001.pdf↗
• June 8, 2020•Document ID: 10178309

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:GEARS

  Mfr Comm. #:

  PIP5175D

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump cover bolts causing a leak at the stator support to pump cover gasket. Technician will check for the bolts to be loose. If any of the bolts are loose or the gasket is misaligned or leaking, the transmission pump cover must be replaced and the 1234 clutch plates should be inspected for being distressed and repaired as needed.

  Associated Products (50)

  2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Yukon XL2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Sierra2019 GMC Yukon2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Chevrolet Caprice2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra+ 30 more
  Associated Documents

  • DownloadMC-10178309-0001.pdf↗
• June 8, 2020•Document ID: 10178252

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE

  Mfr Comm. #:

  16NA380

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This informational bulletin provides a procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.

  Associated Products (75)

  2020 Chevrolet Colorado2020 Chevrolet Equinox2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Canyon2020 GMC Savana2020 GMC Sierra2020 GMC Terrain2019 Chevrolet Colorado2019 Chevrolet Cruze2019 Chevrolet Equinox2019 Chevrolet Express2019 Chevrolet Silverado2019 GMC Canyon2019 GMC Savana2019 GMC Sierra2019 GMC Terrain2018 Chevrolet Colorado2018 Chevrolet Cruze2018 Chevrolet Equinox+ 55 more
  Associated Documents

  • DownloadMC-10178252-0001.pdf↗
• June 5, 2020•Document ID: 10178306

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

  Mfr Comm. #:

  PIC5453C

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician that General Motors and General Motors of Canada Company do not support cross border sales. The General Motors of Canada Customer Care Centre is the sole authorized provider of a certification confirmation letter which helps our customers identify if their vehicles meets the required USA regulatory standards necessary for importation into the USA.

  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-10178306-0001.pdf↗
• June 2, 2020•Document ID: 10178303

  Service Bulletin/Repair Instructions
  SEATS; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5745

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.

  Associated Products (69)

  2020 Buick Envision2020 Cadillac CT62020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Camaro2020 Chevrolet Equinox2020 Chevrolet Impala2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra2020 GMC Terrain2020 GMC Yukon+ 49 more
  Associated Documents

  • DownloadMC-10178303-0001.pdf↗
• June 2, 2020•Document ID: 10178291

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  110089005O

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (340)

  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+ 320 more
  Associated Documents

  • DownloadMC-10178291-0001.pdf↗
• May 29, 2020•Document ID: 10176634

  Service Bulletin/Repair Instructions
  SERVICE BRAKES

  Mfr Comm. #:

  20NA101

  Date Added:

  June 22, 2020

  Manufacturer:

  GMC

  Summary

  This technical bulletin provides a procedure for pad replacement due to on premature and/or uneven brake pad wear.

  Associated Products (10)

  2019 Chevrolet Silverado2019 GMC Sierra2018 Chevrolet Silverado2018 GMC Sierra2017 Chevrolet Silverado2017 GMC Sierra2016 Chevrolet Silverado2016 GMC Sierra2015 Chevrolet Silverado2015 GMC Sierra
  Associated Documents

  • DownloadMC-10176634-0001.pdf↗
• May 28, 2020•Document ID: 10176645

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  030601023D

  Date Added:

  June 22, 2020

  Manufacturer:

  GMC

  Summary

  This information bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

  Associated Products (139)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 GMC Savana2019 GMC Sierra2019 GMC Yukon XL2018 Chevrolet Express2018 Chevrolet Silverado2018 Chevrolet Suburban2018 GMC Savana2018 GMC Sierra2018 GMC Yukon XL2017 Chevrolet Express2017 Chevrolet Silverado2017 Chevrolet Suburban2017 GMC Savana2017 GMC Sierra2017 GMC Yukon XL+ 119 more
  Associated Documents

  • DownloadMC-10176645-0001.pdf↗
• May 28, 2020•Document ID: 10176642

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; STEERING

  Mfr Comm. #:

  20NA113

  Date Added:

  June 22, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Action Required Steering Assist is Reduced Drive with Care Or Service Power Steering Message And Or Current Power Steering Control Module DTCs.

  Associated Products (11)

  2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2018 GMC Yukon XL2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon
  Associated Documents

  • DownloadMC-10176642-0001.pdf↗
• May 28, 2020•Document ID: 10176334

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; POWER TRAIN; STEERING

  Mfr Comm. #:

  PIT5593B

  Date Added:

  June 15, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates a power steering control module calibration error that does not allow its DTC's to transition to history and they always stay current, which can mislead a technician diagnosis. Dealers are to reprogram the power steering control module with updated calibration which will allow DTC's to transition to history if the issue that caused the DTC(s) are now longer present.

  Associated Products (10)

  2018 Chevrolet Silverado2018 Chevrolet Suburban2018 Chevrolet Tahoe2018 GMC Sierra2018 GMC Yukon2017 Chevrolet Silverado2017 Chevrolet Suburban2017 Chevrolet Tahoe2017 GMC Sierra2017 GMC Yukon
  Associated Documents

  • DownloadMC-10176334-0001.pdf↗
• May 27, 2020•Document ID: 10176823

  Service Bulletin/Repair Instructions
  EQUIPMENT; FUEL SYSTEM, DIESEL: PRE-HEATER; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

  Mfr Comm. #:

  N192264210-02

  Date Added:

  June 29, 2020

  Manufacturer:

  GMC

  Summary

  Customer Satisfaction Program - Certain vehicles equipped with the 6.6l Duramaxdiesel engine (RPO L5P) and optional engine-block heater cord, may have a condition in which the block heater cable function was disabled. Dealers will replace the engine block heater and cord.

  Associated Products (6)

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

  • DownloadMC-10176823-0001.pdf↗