Chevrolet Trailblazer Service Bulletins

2,563 manufacturer communications on file.

• February 27, 2024•Document ID: 10251350

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT; WHEELS; SERVICE BRAKES, HYDRAULIC; STRUCTURE

  Mfr Comm. #:

  20-NA-121

  Date Added:

  March 6, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides a procedure to locate and fix a possible leak in the roof area due to missing sealant to correct customer concerns of Various Electrical Issues, No Start, Stall, Brake Lamp Not Off, Radio Inoperative, Remote Key Inoperative, Malfunction Indicator Lamp (MIL) Illuminated with Possible DTCs.

  Associated Products (9)

  2024 Buick Encore GX2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10251350-0001.pdf↗
• February 26, 2024•Document ID: 10251351

  Service Bulletin/Repair Instructions
  POWER TRAIN; ELECTRICAL SYSTEM

  Mfr Comm. #:

  21-NA-003

  Date Added:

  March 6, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides a repair procedure to correct a customer concern of Loss of and/or Reduced Propulsion.

  Associated Products (15)

  2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Malibu2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Malibu2021 Chevrolet Trailblazer2020 Buick Encore GX2020 Chevrolet Malibu2019 Chevrolet Malibu
  Associated Documents

  • DownloadMC-10251351-0001.pdf↗
• February 22, 2024•Document ID: 10250775

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  22-NA-074

  Date Added:

  February 29, 2024

  Manufacturer:

  CADILLAC

  Summary

  This service bulletin provides service information to technicians on guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system.

  Associated Products (1146)

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  Associated Documents

  • DownloadMC-10250775-0001.pdf↗
• February 14, 2024•Document ID: 10251695

  Service Bulletin/Repair Instructions
  STEERING

  Mfr Comm. #:

  PIC6539

  Date Added:

  March 18, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates to the technician the normal operation of the heated steering wheel during a remote start event.

  Associated Products (4)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax
  Associated Documents

  • DownloadMC-10251695-0001.pdf↗
• February 13, 2024•Document ID: 10250572

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  20-NA-084

  Date Added:

  February 23, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on normal engine characteristics/noise produced by the LIH engine.

  Associated Products (8)

  2024 Buick Encore GX2023 Buick Encore GX2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Trailblazer2020 Buick Encore GX
  Associated Documents

  • DownloadMC-10250572-0001.pdf↗
• February 12, 2024•Document ID: 10251692

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; EQUIPMENT:ELECTRICAL:INFOTAINMENT

  Mfr Comm. #:

  PIC6486D

  Date Added:

  March 18, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealer that GM is aware of the issue and is working on a resolution.

  Associated Products (36)

  2024 Buick Encore GX2024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Acadia2024 GMC Sierra2024 GMC Terrain2023 Buick Encore GX2023 Chevrolet Blazer2023 Chevrolet Camaro2023 Chevrolet Equinox2023 Chevrolet Malibu2023 Chevrolet Silverado2023 Chevrolet Trailblazer2023 Chevrolet Traverse+ 16 more
  Associated Documents

  • DownloadMC-10251692-0001.pdf↗
• February 7, 2024•Document ID: 10250505

  Service Bulletin/Repair Instructions
  FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

  Mfr Comm. #:

  19-NA-044

  Date Added:

  February 21, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.

  Associated Products (629)

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  Associated Documents

  • DownloadMC-10250505-0001.pdf↗
• February 7, 2024•Document ID: 10250503

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  16-NA-222

  Date Added:

  February 21, 2024

  Manufacturer:

  GMC

  Summary

  This bulletin provides information on Engine Concerns that could result from lack of scheduled maintenance, improper service or aftermarket calibrations.

  Associated Products (595)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban+ 575 more
  Associated Documents

  • DownloadMC-10250503-0001.pdf↗
• February 2, 2024•Document ID: 10250347

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; POWER TRAIN

  Mfr Comm. #:

  16-NA-338

  Date Added:

  February 17, 2024

  Manufacturer:

  GMC

  Summary

  This Warranty Admin service 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 (733)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban+ 713 more
  Associated Documents

  • DownloadMC-10250347-0001.pdf↗
• January 31, 2024•Document ID: 10250006

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

  Mfr Comm. #:

  PIT6122

  Date Added:

  February 12, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary information communicates to dealers of a known issue with failed map update

  Associated Products (280)

  2020 Buick Enclave2020 Buick Encore2020 Buick Envision2020 Buick Regal2020 Cadillac CT42020 Cadillac CT52020 Cadillac CT62020 Cadillac Escalade2020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Bolt EV2020 Chevrolet Camaro2020 Chevrolet Colorado2020 Chevrolet Corvette2020 Chevrolet Equinox2020 Chevrolet Express2020 Chevrolet Impala2020 Chevrolet Malibu+ 260 more
  Associated Documents

  • DownloadMC-10250006-0001.pdf↗
• January 31, 2024•Document ID: 10250007

  Service Bulletin/Repair Instructions
  EQUIPMENT:ELECTRICAL

  Mfr Comm. #:

  PIT6097C

  Date Added:

  February 12, 2024

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary information communicates an issue where the vehicles wireless charger no longer works with certain ISO updates on Apple 15 phones and advises customer to update their phone to the lastest ISO update.

  Associated Products (99)

  2024 Buick Enclave2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Malibu2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 Chevrolet Trailblazer+ 79 more
  Associated Documents

  • DownloadMC-10250007-0001.pdf↗
• January 30, 2024•Document ID: 10250276

  Service Bulletin/Repair Instructions
  EQUIPMENT; ELECTRICAL SYSTEM

  Mfr Comm. #:

  23-NA-055

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs.

  Associated Products (201)

  2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 181 more
  Associated Documents

  • DownloadMC-10250276-0001.pdf↗
• January 30, 2024•Document ID: 10250272

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING; EQUIPMENT

  Mfr Comm. #:

  20-NA-024

  Date Added:

  February 14, 2024

  Manufacturer:

  BUICK

  Summary

  This service bulletin provides a information and diagnostic steps/tips for vehicles that are slow to heat up in cold temperatures.

  Associated Products (58)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax2023 Buick Encore GX2023 Chevrolet Trailblazer2023 Chevrolet Trax2022 Buick Encore2022 Buick Encore GX2022 Chevrolet Trailblazer2022 Chevrolet Trax2021 Buick Encore2021 Buick Encore GX2021 Chevrolet Trailblazer2021 Chevrolet Trax2020 Buick Encore2020 Buick Encore GX2020 Chevrolet Sonic2020 Chevrolet Spark2020 Chevrolet Trax+ 38 more
  Associated Documents

  • DownloadMC-10250272-0001.pdf↗
• January 29, 2024•Document ID: 10250278

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; EQUIPMENT

  Mfr Comm. #:

  23-NA-189

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin assists technicians in setting up PicoScope hardware/software to monitor CAN bus traffic (voltage patterns) to aid Technical Assistance (TAC) and Field Service Engineers (FSEs) in diagnosing electrical issues present on network communication circuits.

  Associated Products (201)

  2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express+ 181 more
  Associated Documents

  • DownloadMC-10250278-0001.pdf↗
• January 29, 2024•Document ID: 10249998

  Service Bulletin/Repair Instructions
  SEATS

  Mfr Comm. #:

  PIT6117

  Date Added:

  February 12, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates what actions the technician should take when the heated seat enabling feature is missing from the personalization menu.

  Associated Products (4)

  2024 Buick Encore GX2024 Buick Envista2024 Chevrolet Trailblazer2024 Chevrolet Trax
  Associated Documents

  • DownloadMC-10249998-0001.pdf↗
• January 26, 2024•Document ID: 10250258

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  23-NA-214

  Date Added:

  February 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides Information on Purge Pump Part Replacement and Purge pump Part Number Interchangeability.

  Associated Products (69)

  2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Colorado2024 Chevrolet Silverado2024 Chevrolet Trailblazer2024 Chevrolet Traverse2024 Chevrolet Trax2024 GMC Acadia2024 GMC Canyon2024 GMC Sierra2023 Buick Encore GX2023 Buick Envision2023 Cadillac CT4+ 49 more
  Associated Documents

  • DownloadMC-10250258-0001.pdf↗
• January 23, 2024•Document ID: 10249170

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

  Mfr Comm. #:

  A232425160

  Date Added:

  January 23, 2024

  Manufacturer:

  CHEVROLET

  Summary

  Customer Satisfaction Program - Certain vehicles may have a condition in which customers were charged for a front fascia bowtie that did not fit the vehicle. Dealers will provide the customer with a reimbursement check in the amount of $225.00 USD.

  Associated Products (1)

  2024 Chevrolet Trailblazer
  Associated Documents

  • DownloadMC-10249170-0001.pdf↗
• January 18, 2024•Document ID: 10250244

  Service Bulletin/Repair Instructions
  STRUCTURE

  Mfr Comm. #:

  PI0281K

  Date Added:

  February 14, 2024

  Manufacturer:

  GMC

  Summary

  This preliminary informational (PI) bulletin provides information to dealership personnel which may be helpful when addressing underbody component corrosion with customers.

  Associated Products (642)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express2024 Chevrolet Malibu+ 622 more
  Associated Documents

  • DownloadMC-10250244-0001.pdf↗
• January 16, 2024•Document ID: 10249983

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  PIP5958

  Date Added:

  February 12, 2024

  Manufacturer:

  BUICK

  Summary

  This Preliminary information communicates the process for recording transmission noises using the PicoScope For review

  Associated Products (15)

  2024 Buick Encore GX2024 Chevrolet Malibu2024 Chevrolet Trailblazer2023 Buick Encore GX2023 Chevrolet Malibu2023 Chevrolet Trailblazer2022 Buick Encore GX2022 Chevrolet Malibu2022 Chevrolet Trailblazer2021 Buick Encore GX2021 Chevrolet Malibu2021 Chevrolet Trailblazer2020 Buick Encore GX2020 Chevrolet Malibu2019 Chevrolet Malibu
  Associated Documents

  • DownloadMC-10249983-0001.pdf↗
• January 16, 2024•Document ID: 10249590

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

  Mfr Comm. #:

  18-NA-099

  Date Added:

  February 2, 2024

  Manufacturer:

  CADILLAC

  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 (979)

  2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX2024 Buick Envision2024 Buick Envista2024 Cadillac CT42024 Cadillac CT52024 Cadillac Escalade2024 Cadillac Lyriq2024 Cadillac XT42024 Cadillac XT52024 Cadillac XT62024 Chevrolet Blazer2024 Chevrolet Bolt EV2024 Chevrolet Camaro2024 Chevrolet Colorado2024 Chevrolet Corvette2024 Chevrolet Equinox2024 Chevrolet Express2024 Chevrolet Malibu+ 959 more
  Associated Documents

  • DownloadMC-10249590-0001.pdf↗