Chevrolet Silverado Service Bulletins

10,441 manufacturer communications on file.

• July 29, 2020•Document ID: 10178408

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

  Mfr Comm. #:

  N192291660

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  Special Coverage Adjustment - certain vehicles with a 6.2L engine may have a condition that affects the electrical connection to the transmission oil temperature sensor. If this condition occurs, rough transmission shifts or hesitation during acceleration may occur. Additionally, the Malfunction Indicator Light (Check Engine Light) would illuminate and a diagnostic trouble code related to the temperature sensor would set. Dealers are to replace the transmission wiring harness as necessary. The repairs will be made at no charge to the customer.

  Associated Products (6)

  2016 Cadillac Escalade2016 Cadillac Escalade ESV2016 Chevrolet Silverado2016 GMC Sierra2016 GMC Yukon2016 GMC Yukon XL
  Associated Documents

  • DownloadMC-10178408-0001.pdf↗
• July 29, 2020•Document ID: 10178395

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5745

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates to technicians a possible cause and correction for a P026A

  Associated Products (4)

  2021 Chevrolet Silverado2021 GMC Sierra2020 Chevrolet Silverado2020 GMC Sierra
  Associated Documents

  • DownloadMC-10178395-0001.pdf↗
• July 29, 2020•Document ID: 10178390

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5742A

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates an issue with the engine wiring harness shorting on the ecm mounting bracket and provides repair instructions.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178390-0001.pdf↗
• July 29, 2020•Document ID: 10178394

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5733A

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

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

  Associated Products (20)

  2021 Cadillac Escalade2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Chevrolet Equinox2020 Chevrolet Malibu2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Sierra2020 GMC Terrain2020 GMC Yukon2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178394-0001.pdf↗
• July 28, 2020•Document ID: 10178949

  Service Bulletin/Repair Instructions
  ENGINE; POWER TRAIN

  Mfr Comm. #:

  16NA338

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns for Canadian Dealers only.

  Associated Products (653)

  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+ 633 more
  Associated Documents

  • DownloadMC-10178949-0001.pdf↗
• July 28, 2020•Document ID: 10178407

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  N202300240

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program - certain vehicles may have a condition of a transfer case fluid leak below the front input shaft bearing retainer or at the idler pulley bearing retainer. Dealers are to inspect and if necessary, replace two o-rings on the transfer case.

  Associated Products (1)

  2019 Chevrolet Silverado
  Associated Documents

  • DownloadMC-10178407-0001.pdf↗
• July 27, 2020•Document ID: 10178976

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  20NA142

  Date Added:

  August 31, 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-10178976-0001.pdf↗
• July 27, 2020•Document ID: 10178387

  Service Bulletin/Repair Instructions
  EQUIPMENT; ENGINE

  Mfr Comm. #:

  PIP5226D

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about finding needle bearings during an oil change. Technician will gain access to the roller rockers to inspect them. Only replace the roller rocker that is missing needle bearings. Be sure to clean the oil drains to retrieve the needle bearings. Each roller rocker has 66 bearings.

  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-10178387-0001.pdf↗
• July 27, 2020•Document ID: 10178385

  Service Bulletin/Repair Instructions
  VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

  Mfr Comm. #:

  PIT5099E

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

  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-10178385-0001.pdf↗
• July 24, 2020•Document ID: 10178384

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIC5650H

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies.

  Associated Products (501)

  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+ 481 more
  Associated Documents

  • DownloadMC-10178384-0001.pdf↗
• July 24, 2020•Document ID: 10178382

  Service Bulletin/Repair Instructions
  STRUCTURE; SUSPENSION

  Mfr Comm. #:

  PIT5533C

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have a creak, click, pop, and or crack type noise from the front suspension or front frame area while making tight turns. Technician will need to loosen and then re-torque the four front frame cross member nuts and bolts.

  Associated Products (34)

  2020 Cadillac Escalade2020 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 Suburban2017 Chevrolet Tahoe+ 14 more
  Associated Documents

  • DownloadMC-10178382-0001.pdf↗
• July 23, 2020•Document ID: 10178951

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE:DIESEL

  Mfr Comm. #:

  17NA374

  Date Added:

  August 31, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin advises the technician of how the Soot information has changed from grams to percentage.

  Associated Products (8)

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

  • DownloadMC-10178951-0001.pdf↗
• July 23, 2020•Document ID: 10178380

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIT5698A

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates additional information on how a LIN bus operates and diagnostic tips when working on a LIN bus.

  Associated Products (200)

  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+ 180 more
  Associated Documents

  • DownloadMC-10178380-0001.pdf↗
• July 22, 2020•Document ID: 10178965

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  20NA026

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Loss of Radio Audio Shortly After an OnStar In-Vehicle Voice Message Is Heard.

  Associated Products (231)

  2016 Chevrolet Silverado2015 Buick Enclave2015 Cadillac Escalade2015 Cadillac Escalade ESV2015 Chevrolet Camaro2015 Chevrolet Express2015 Chevrolet Impala2015 Chevrolet Silverado2015 Chevrolet Spark2015 Chevrolet Suburban2015 Chevrolet Tahoe2015 Chevrolet Traverse2015 GMC Acadia2015 GMC Savana2015 GMC Sierra2015 GMC Yukon2015 GMC Yukon XL2014 Buick Enclave2014 Buick Encore2014 Buick LaCrosse+ 211 more
  Associated Documents

  • DownloadMC-10178965-0001.pdf↗
• July 22, 2020•Document ID: 10178959

  Service Bulletin/Repair Instructions
  STRUCTURE; EQUIPMENT

  Mfr Comm. #:

  19NA255

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This preliminary informational bulletin provides frame coating repair information to correct a customer concern of wax coating on frame peeling, metal shows corrosion/rusting (U.S. and Canada Only).

  Associated Products (103)

  2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL2019 Cadillac Escalade2019 Cadillac Escalade ESV2019 Chevrolet Express2019 Chevrolet Silverado2019 Chevrolet Suburban2019 Chevrolet Tahoe2019 GMC Savana2019 GMC Sierra2019 GMC Yukon2019 GMC Yukon XL+ 83 more
  Associated Documents

  • DownloadMC-10178959-0001.pdf↗
• July 22, 2020•Document ID: 10178378

  Service Bulletin/Repair Instructions
  POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT; EQUIPMENT

  Mfr Comm. #:

  PIP5653G

  Date Added:

  August 10, 2020

  Manufacturer:

  GMC

  Summary

  This Preliminary information communicates that engineering has developed a repair for a chirp noise associated with the front axle assembly.

  Associated Products (4)

  2020 Chevrolet Silverado2020 GMC Sierra2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178378-0001.pdf↗
• July 22, 2020•Document ID: 10178376

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

  Mfr Comm. #:

  PIC5453D

  Date Added:

  August 10, 2020

  Manufacturer:

  CADILLAC

  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-10178376-0001.pdf↗
• July 21, 2020•Document ID: 10178960

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; EQUIPMENT

  Mfr Comm. #:

  19NA277

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to replace the fuel tank, sending unit and install a piece of fuel hose to the vent and route down the fuel feed line and secure with zip ties.

  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-10178960-0001.pdf↗
• July 20, 2020•Document ID: 10178978

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA145

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of Heated Seat Switch Indicators Inoperative or 110v Power Receptacle Switch Indicator Dimly Lit.

  Associated Products (2)

  2019 Chevrolet Silverado2019 GMC Sierra
  Associated Documents

  • DownloadMC-10178978-0001.pdf↗
• July 20, 2020•Document ID: 10178403

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM

  Mfr Comm. #:

  N192291640

  Date Added:

  August 10, 2020

  Manufacturer:

  CHEVROLET

  Summary

  Special Coverage. On some vehicles, equipped with a 6.6L diesel engine, an exhaust gas temperature sensor, at the position 2 location, may fail. If this occurs, the control system will inhibit diesel particulate filter regeneration and selective catalyst reductant (Diesel Exhaust Fluid) dosing. The Service Exhaust Fluid System or Service Emission System message will be displayed, the Malfunction Indicator Light (Check Engine Light) will illuminate, and a diagnostic trouble code related to the position 2 exhaust gas temperature sensor will be set. This special coverage covers the condition described above for a period of 10 years or 120,000 miles (193,000 km), whichever occurs first, from the date the vehicle was originally placed in service, regardless of ownership. Dealers are to replace the position 2 exhaust gas temperature sensor as necessary. The repairs will be made at no charge to the customer.

  Associated Products (2)

  2016 Chevrolet Silverado2016 GMC Sierra
  Associated Documents

  • DownloadMC-10178403-0001.pdf↗