GMC Sierra Service Bulletins (2021)
1,650 manufacturer communications on file.
- September 16, 2024•Document ID: 11009093Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 21-NA-120
- Date Added:
- October 24, 2024
- Manufacturer:
- CHEVROLET
SummaryThis service bulletin provides a Diagnostic Tip for Noise, Vibration, and/or Harshness Issues/Clunk Noise Heard During Coast Down Event after the transfer case was removed from the transmission and reinstalled during a recent repair.
Associated Products (11)Associated Documents - September 16, 2024•Document ID: 11007807Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- PIT5689J
- Date Added:
- September 16, 2024
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates that some customers may comment that after an auto-stop event the engine does not restart and to inspect the engine ground strap. Temporarily on hold while PIE0572 is active. PIE0572 has now ended and reinstating the PI.
Associated Products (12)Associated Documents - September 16, 2024•Document ID: 11009088Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- 08-07-30-026I
- Date Added:
- October 24, 2024
- Manufacturer:
- CHEVROLET
SummaryThis service bulletin provides information on some vehicles that may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto-start feature, if equipped.
Associated Products (789)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 769 moreAssociated Documents - September 16, 2024•Document ID: 11007808Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5860C
- Date Added:
- September 16, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates and issue with a no crank, Key Learn Pending or Ready For FOB 3 Message, Unable To Exit RVS With Push To Start Button, Symptoms Of A Dead Battery and has dealership inspect to see if the vehicle is falsely entering the manual transmitter programming and if so to replace the drivers power window switch.
Associated Products (21)2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Silverado2022 Chevrolet Traverse2022 GMC Acadia2022 GMC Sierra2021 Chevrolet Silverado2021 Chevrolet Traverse2021 GMC Acadia2021 GMC Sierra2020 Chevrolet Silverado2020 Chevrolet Traverse2020 GMC Acadia2020 GMC Sierra2019 Chevrolet Silverado2019 Chevrolet Traverse2019 GMC Acadia2019 GMC Sierra2018 Chevrolet Traverse2018 GMC Acadia+ 1 moreAssociated Documents - September 16, 2024•Document ID: 11007805Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- PIP5949A
- Date Added:
- September 16, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates to the dealer, a potential rough running condition following an autostop event that is caused by the incorrect crankshaft position sensor.
Associated Products (26)2024 Chevrolet Suburban2023 Cadillac Escalade2023 Chevrolet Silverado2023 Chevrolet Suburban2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2022 Cadillac Escalade2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Sierra2021 GMC Yukon2020 Cadillac Escalade+ 6 moreAssociated Documents - September 14, 2024•Document ID: 11007795Service Bulletin/Repair InstructionsSTRUCTURE:BODY
- Mfr Comm. #:
- PIT5680A
- Date Added:
- September 14, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates an issues with water/ice building up on the door sill plate and advising dealership to inspect and reseal the door water deflector.
Associated Products (14)Associated Documents - September 14, 2024•Document ID: 11009039Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 18-NA-146
- Date Added:
- October 22, 2024
- Manufacturer:
- CHEVROLET
SummaryThis warranty administration bulletin provides policy information, proper labor operation selection and causal part identification for warranty transactions (U.S. Only).
Associated Products (648)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban+ 628 moreAssociated Documents - September 14, 2024•Document ID: 11007788Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- PIP6000A
- Date Added:
- September 14, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary Information communication advises the technician on a parts restriction on the Generation I 8 speed rear wheel drive valve bodies.
Associated Products (56)2023 Chevrolet Camaro2023 Chevrolet Silverado2023 GMC Sierra2022 Chevrolet Camaro2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Savana2022 GMC Sierra2021 Chevrolet Camaro2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Savana2021 GMC Sierra2020 Cadillac Escalade2020 Chevrolet Camaro2020 Chevrolet Express2020 Chevrolet Silverado2020 GMC Savana2020 GMC Sierra+ 36 moreAssociated Documents - September 14, 2024•Document ID: 11007787Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6132A
- Date Added:
- September 14, 2024
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates an issues with the HVAC making a hum buzz noise when the blower is set to a higher speed. Engineering is working on a new HVAC door seal material to correct the noise.
Associated Products (24)2025 Chevrolet Silverado2024 Cadillac Escalade2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2023 Cadillac Escalade2023 Chevrolet Silverado2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2022 Cadillac Escalade2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Silverado+ 4 moreAssociated Documents - September 14, 2024•Document ID: 11007786Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5966D
- Date Added:
- September 14, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
Associated Products (57)2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 37 moreAssociated Documents - September 13, 2024•Document ID: 11007779Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- PIP5990A
- Date Added:
- September 13, 2024
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates a part restriction for certain MY 2.7 L3B service engines
Associated Products (11)Associated Documents - September 13, 2024•Document ID: 11007773Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6110C
- Date Added:
- September 13, 2024
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates an issue with the SES MIL and DTC P062B and engineering is working on a fix.
Associated Products (23)2024 Cadillac Escalade2024 Chevrolet Silverado2024 Chevrolet Suburban2024 Chevrolet Tahoe2024 GMC Sierra2024 GMC Yukon2023 Cadillac Escalade2023 Chevrolet Silverado2023 Chevrolet Tahoe2023 GMC Sierra2023 GMC Yukon2022 Cadillac Escalade2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 GMC Sierra2022 GMC Yukon2021 Cadillac Escalade2021 Chevrolet Silverado2021 Chevrolet Suburban+ 3 moreAssociated Documents - September 13, 2024•Document ID: 11007771Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- PIP5996A
- Date Added:
- September 13, 2024
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates diagnostic information for vehicles with transmission noise.
Associated Products (89)2024 Cadillac CT42024 Chevrolet Silverado2024 GMC Canyon2024 GMC Savana2024 GMC Sierra2023 Cadillac CT42023 Chevrolet Camaro2023 Chevrolet Colorado2023 Chevrolet Silverado2023 GMC Canyon2022 Cadillac CT42022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Canyon2022 GMC Savana2022 GMC Sierra2021 Cadillac CT4+ 69 moreAssociated Documents - September 12, 2024•Document ID: 11009032Service Bulletin/Repair InstructionsSTRUCTURE:BODY; ENGINE
- Mfr Comm. #:
- 24-NA-186
- Date Added:
- October 22, 2024
- Manufacturer:
- GMC
SummaryThis bulletin advises the tech that if the wrong mounts are installed, this may be the cause of the engine vibration.
Associated Products (8)Associated Documents - September 12, 2024•Document ID: 11007739Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP5901A
- Date Added:
- September 12, 2024
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates that the tool for the HD transfer cases to measure clutch pack shim selection is in development.
Associated Products (10)Associated Documents - September 12, 2024•Document ID: 11007736Service Bulletin/Repair InstructionsSUSPENSION
- Mfr Comm. #:
- PIT6177A
- Date Added:
- September 12, 2024
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
Associated Products (10)Associated Documents - September 12, 2024•Document ID: 11007868Service CampaignENGINE
- Mfr Comm. #:
- N242450631
- Date Added:
- September 18, 2024
- Manufacturer:
- CADILLAC
SummaryService Update. Certain vehicles equipped with a 2.7L engine (RPO L3B), may have an Engine Control Module (ECM) that does not sufficiently control fuel injector flow rate under certain driving conditions. Dealers are to reprogram the ECM.
Associated Products (12)Associated Documents - September 12, 2024•Document ID: 11007744Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5099H
- Date Added:
- September 12, 2024
- Manufacturer:
- CHEVROLET
SummaryThis 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 (834)2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 814 moreAssociated Documents - September 12, 2024•Document ID: 11007743Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5099H
- Date Added:
- September 12, 2024
- Manufacturer:
- CHEVROLET
SummaryThis 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 (834)2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 814 moreAssociated Documents - September 11, 2024•Document ID: 11007717Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT6220
- Date Added:
- September 11, 2024
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates that a dealer may find the underhood beauty covers missing. The dealer is advised that these are missing by design and should not be ordered for the vehicle.
Associated Products (10)Associated Documents