Chevrolet Trailblazer Service Bulletins

2,563 manufacturer communications on file.

• September 15, 2020•Document ID: 10181712

  Service Bulletin/Repair Instructions
  PARKING BRAKE:ELECTRICAL

  Mfr Comm. #:

  20NA186

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides repair information to correct a customer concern of an Unwanted Electric Park Brake Setting.

  Associated Products (1)

  2021 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-10181712-0001.pdf↗
• September 10, 2020•Document ID: 10181684

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  19NA200

  Date Added:

  October 26, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a repair procedure to correct a customer concern of start/stop inoperative, MIL illuminated w/DTC P2797.

  Associated Products (3)

  2021 Chevrolet Trailblazer2020 Chevrolet Malibu2019 Chevrolet Malibu
  Associated Documents

  • DownloadMC-10181684-0001.pdf↗
• September 8, 2020•Document ID: 10181697

  Service Bulletin/Repair Instructions
  ENGINE; ELECTRICAL SYSTEM:SOFTWARE; STRUCTURE:BODY

  Mfr Comm. #:

  20NA165

  Date Added:

  October 26, 2020

  Manufacturer:

  BUICK

  Summary

  This technical bulletin provides repair information to correct a customer concern of Flutter or Boom Noise at 1200 RPM- Service Calibration.

  Associated Products (2)

  2021 Buick Encore GX2021 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-10181697-0001.pdf↗
• September 2, 2020•Document ID: 10181728

  Service Bulletin/Repair Instructions
  EQUIPMENT; SUSPENSION:REAR

  Mfr Comm. #:

  PIE0558A

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards a loud bang and/or grinding type noise heard coming from the rear axle area.

  Associated Products (13)

  2020 Chevrolet Colorado2020 GMC Canyon2019 Chevrolet Colorado2019 GMC Canyon2018 Chevrolet Colorado2018 Chevrolet Trailblazer2018 GMC Canyon2017 Chevrolet Colorado2017 GMC Canyon2016 Chevrolet Colorado2016 GMC Canyon2015 Chevrolet Colorado2015 GMC Canyon
  Associated Documents

  • DownloadMC-10181728-0001.pdf↗
• September 2, 2020•Document ID: 10181660

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  16NA019

  Date Added:

  October 26, 2020

  Manufacturer:

  GMC

  Summary

  This informational bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.

  Associated Products (225)

  2021 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 Trailblazer2021 GMC Acadia2021 GMC Canyon2021 GMC Savana2021 GMC Sierra+ 205 more
  Associated Documents

  • DownloadMC-10181660-0001.pdf↗
• August 26, 2020•Document ID: 10179653

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM:SOFTWARE

  Mfr Comm. #:

  PIP5746

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates the possibility of the vehicle having dtc P2B95 in history and possibly P2B96 P2B0A, P2B08, or P2B09  due to a software anomally.

  Associated Products (2)

  2021 Chevrolet Trailblazer2020 Buick Encore
  Associated Documents

  • DownloadMC-10179653-0001.pdf↗
• August 21, 2020•Document ID: 10180695

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  100601007E

  Date Added:

  October 5, 2020

  Manufacturer:

  GMC

  Summary

  This Technical bulletin provides a procedure to correct a condition of Active Fuel Management (AFM) Engine Valve Lifter Tick Noise at Start Up When Engine Has Been Off for 2 Hours or More.

  Associated Products (54)

  2011 Cadillac Escalade2011 Cadillac Escalade ESV2011 Chevrolet Avalanche2011 Chevrolet Camaro2011 Chevrolet Silverado2011 Chevrolet Suburban2011 Chevrolet Tahoe2011 GMC Sierra2011 GMC Yukon2011 GMC Yukon XL2010 Cadillac Escalade2010 Cadillac Escalade ESV2010 Chevrolet Avalanche2010 Chevrolet Camaro2010 Chevrolet Silverado2010 Chevrolet Suburban2010 Chevrolet Tahoe2010 GMC Sierra2010 GMC Yukon2010 GMC Yukon XL+ 34 more
  Associated Documents

  • DownloadMC-10180695-0001.pdf↗
• August 19, 2020•Document ID: 10213750

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EQUIPMENT

  Mfr Comm. #:

  A202304840 02

  Date Added:

  June 13, 2022

  Manufacturer:

  BUICK

  Summary

  Service Update Bulletin. Certain vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that could have been set by this condition, and repair vehicles that fail the inspection.

  Associated Products (3)

  2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10213750-0001.pdf↗
• August 14, 2020•Document ID: 10180317

  Service Bulletin/Repair Instructions
  TIRES

  Mfr Comm. #:

  20NA159

  Date Added:

  September 28, 2020

  Manufacturer:

  CADILLAC

  Summary

  This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).

  Associated Products (345)

  2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Camaro2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Canyon+ 325 more
  Associated Documents

  • DownloadMC-10180317-0001.pdf↗
• August 12, 2020•Document ID: 10180315

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA157

  Date Added:

  September 28, 2020

  Manufacturer:

  CADILLAC

  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 (158)

  2021 Buick Encore2021 Buick Encore GX2021 Cadillac XT42021 Chevrolet Camaro2021 Chevrolet Equinox2021 Chevrolet Malibu2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 Chevrolet Trailblazer2021 GMC Sierra2021 GMC Terrain2021 GMC Yukon2021 GMC Yukon XL2020 Buick Encore2020 Buick Encore GX2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT5+ 138 more
  Associated Documents

  • DownloadMC-10180315-0001.pdf↗
• August 10, 2020•Document ID: 10180293

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION

  Mfr Comm. #:

  16NA361

  Date Added:

  September 28, 2020

  Manufacturer:

  CADILLAC

  Summary

  This informational bulletin explains possible normal condition of a flare from 1st to 2nd, even if the trans had been repaired for the flare and its still noticed.

  Associated Products (93)

  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+ 73 more
  Associated Documents

  • DownloadMC-10180293-0001.pdf↗
• August 5, 2020•Document ID: 10180299

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

  Mfr Comm. #:

  18NA099

  Date Added:

  September 28, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.

  Associated Products (853)

  2020 Buick Enclave2020 Buick Encore2020 Buick Encore GX2020 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 Colorado+ 833 more
  Associated Documents

  • DownloadMC-10180299-0001.pdf↗
• August 5, 2020•Document ID: 10179623

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  PIT5411U

  Date Added:

  September 14, 2020

  Manufacturer:

  CADILLAC

  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 (6)

  2020 Cadillac CT42020 Cadillac CT52020 Chevrolet Corvette2020 Chevrolet Trailblazer2020 Chevrolet Traverse2020 GMC Acadia
  Associated Documents

  • DownloadMC-10179623-0001.pdf↗
• August 3, 2020•Document ID: 10179620

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP5632C

  Date Added:

  September 14, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician that General Motors Technical Assistance Center may ask for Global Diagnostic System 2 Session Log. Technician will need use Global Diagnostic System 2 to send the session logs to General Motors Technical Assistance Center for further assistance on the vehicle in question.

  Associated Products (355)

  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+ 335 more
  Associated Documents

  • DownloadMC-10179620-0001.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: 10178983

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  20NA151

  Date Added:

  August 31, 2020

  Manufacturer:

  CHEVROLET

  Summary

  This technical bulletin provides a procedure to correct conditions of Engine Idle Unstable, Malfunction Indicator Lamp (MIL) Illuminated - DTC P0011, P0014, P0016, P0017, P05CC and/or P05CE Set.

  Associated Products (2)

  2021 Chevrolet Trailblazer2020 Buick Encore
  Associated Documents

  • DownloadMC-10178983-0001.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: 10207729

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; ENGINE

  Mfr Comm. #:

  A202304840 01

  Date Added:

  February 7, 2022

  Manufacturer:

  CHEVROLET

  Summary

  Service Update. Certain vehicles may have a condition where the camshaft actuator oil control valve (OCV) center bolt could stick or bind. If this were to happen, it could cause a MIL light to illuminate on the dash (Service Engine Soon), setting diagnostic trouble codes (DTC?s) P0011 or P0014, the engine could run rough and have reduced power. Dealers will inspect for these DTC?s that could have been set by this condition, and repair vehicles that fail the inspection.

  Associated Products (3)

  2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10207729-0001.pdf↗