GMC Sierra Service Bulletins (2021)
1,650 manufacturer communications on file.
- March 10, 2021•Document ID: 10191202Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- 20NA082
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis informational bulletin explains why more DEF is being used in diesel engines do to new emission standards.
Associated Products (10)Associated Documents - March 10, 2021•Document ID: 10191197Service Bulletin/Repair InstructionsSTRUCTURE
- Mfr Comm. #:
- 19NA255
- Date Added:
- May 3, 2021
- Manufacturer:
- GMC
SummaryThis 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 (115)2021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Chevrolet Express2021 Chevrolet Silverado2021 Chevrolet Suburban2021 Chevrolet Tahoe2021 GMC Savana2021 GMC Sierra2021 GMC Yukon2021 GMC Yukon XL2020 Cadillac Escalade2020 Cadillac Escalade ESV2020 Chevrolet Express2020 Chevrolet Silverado2020 Chevrolet Suburban2020 Chevrolet Tahoe2020 GMC Savana2020 GMC Sierra2020 GMC Yukon2020 GMC Yukon XL+ 95 moreAssociated Documents - March 9, 2021•Document ID: 10191217Service Bulletin/Repair InstructionsEQUIPMENT
- Mfr Comm. #:
- 21NA043
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis informational bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before sold (prepping) to the customer.
Associated Products (404)2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 4500XD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu+ 384 moreAssociated Documents - March 9, 2021•Document ID: 10191206Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- 20NA132
- Date Added:
- May 3, 2021
- Manufacturer:
- CADILLAC
SummaryThis warranty administration bulletin provides policy information on the requirements for battery testing and warranty replacements.
Associated Products (285)2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 4500XD2021 Chevrolet 6500XD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express+ 265 moreAssociated Documents - March 9, 2021•Document ID: 10190396Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING:ENGINE:CRANK/CAMSHAFT POSITION SENSOR
- Mfr Comm. #:
- PIP5712A
- Date Added:
- April 19, 2021
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates to the technician a service Diagnostic / Repair tip to avoid causing the crankshaft sprocket to disengage from the crankshaft during crankshaft balancer removal.
Associated Products (26)2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet Blazer2021 Chevrolet Silverado2021 Chevrolet Trailblazer2021 GMC Acadia2021 GMC Sierra2020 Buick Encore GX2020 Cadillac CT42020 Cadillac CT52020 Cadillac XT42020 Cadillac XT52020 Cadillac XT62020 Chevrolet Blazer2020 Chevrolet Silverado+ 6 moreAssociated Documents - March 8, 2021•Document ID: 10191244Service Bulletin/Repair InstructionsPOWER TRAIN
- Mfr Comm. #:
- PIE0615
- Date Added:
- May 3, 2021
- Manufacturer:
- GMC
SummaryThis engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards on a tick and/or ping type noise heard from the Propeller Shaft during acceleration and/or braking.
Associated Products (6)Associated Documents - March 8, 2021•Document ID: 10191212Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING
- Mfr Comm. #:
- 21NA002
- Date Added:
- May 3, 2021
- Manufacturer:
- GMC
SummaryThis informational bulletin provides a test procedure, for a possible faulty DEF Heater.
Associated Products (9)Associated Documents - March 8, 2021•Document ID: 10191163Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- 16NA109
- Date Added:
- May 3, 2021
- Manufacturer:
- CADILLAC
SummaryThis service bulletin provides a procedure inspecting for excess grease or Sealant on the Exterior of the steering gear due to seeing grease or sealant on certain locations on the gear.
Associated Products (511)2021 Buick Enclave2021 Buick Encore2021 Buick Encore GX2021 Buick Envision2021 Cadillac CT42021 Cadillac CT52021 Cadillac Escalade2021 Cadillac Escalade ESV2021 Cadillac XT42021 Cadillac XT52021 Cadillac XT62021 Chevrolet 4500XD2021 Chevrolet Blazer2021 Chevrolet Bolt EV2021 Chevrolet Camaro2021 Chevrolet Colorado2021 Chevrolet Corvette2021 Chevrolet Equinox2021 Chevrolet Express2021 Chevrolet Malibu+ 491 moreAssociated Documents - March 5, 2021•Document ID: 10191196Service Bulletin/Repair InstructionsSTEERING
- Mfr Comm. #:
- 19NA240
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis technical bulletin provides repair information to correct a customer concern of steering wheel oscillation, vibration, shake 50-80 mph.
Associated Products (4)Associated Documents - March 5, 2021•Document ID: 10190365Service Bulletin/Repair InstructionsBACK OVER PREVENTION; VISIBILITY
- Mfr Comm. #:
- PIT5744A
- Date Added:
- April 19, 2021
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates information on how to disable the Side Blind Zone Detection and Park Assist systems when a customer removes the pickup box from the vehicle to install an aftermarket bed or body.
Associated Products (6)Associated Documents - March 5, 2021•Document ID: 10190364Service Bulletin/Repair InstructionsEQUIPMENT
- Mfr Comm. #:
- PIT5820
- Date Added:
- April 19, 2021
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates an issues with an SES MIL and DTC P2B87 setting. Engineering has releasing updated cals to correct the concern.
Associated Products (2)Associated Documents - March 5, 2021•Document ID: 10190362Service Bulletin/Repair InstructionsSTEERING; POWER TRAIN; BACK OVER PREVENTION
- Mfr Comm. #:
- PIT5544D
- Date Added:
- April 19, 2021
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.
Associated Products (12)Associated Documents - March 5, 2021•Document ID: 10190361Service Bulletin/Repair InstructionsENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
- Mfr Comm. #:
- PIT5819
- Date Added:
- April 19, 2021
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates in temperatures below freezing, it may be noticed that exhaust is only exiting from the right hand exhaust tailpipe. The cause of this condition is a low point in left side tailpipe which results in condensation building up at the low point in the tailpipe. In low temperatures the condensation can freeze and form ice limiting the flow of exhaust out of the left tailpipe. Dealers are to drill a small hole in the left tailpipe to allow condensation to drain.
Associated Products (6)Associated Documents - March 5, 2021•Document ID: 10191240Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- PIE0610A
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to Loss of Power, Instrument Panel Cluster (IPC) Gauges are Inoperative and/or Fluctuate, Multiple Warning Lights on DIC.
Associated Products (10)Associated Documents - March 4, 2021•Document ID: 10191209Service Bulletin/Repair InstructionsFUEL SYSTEM, GASOLINE
- Mfr Comm. #:
- 20NA197
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis technical bulletin provides a procedure to inspect and repair the fuel pressure sensor if found the cause of the customers concern.
Associated Products (10)Associated Documents - March 4, 2021•Document ID: 10190764Service Bulletin/Repair InstructionsPOWER TRAIN:AUTOMATIC TRANSMISSION
- Mfr Comm. #:
- N212328090
- Date Added:
- April 26, 2021
- Manufacturer:
- GMC
SummaryCustomer Satisfaction Program. Certain 2021 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, equipped with an 8 speed automatic transmission, (RPO MQE), may have a broken reaction carrier in the transmission. Dealers will replace the transmission.
Associated Products (2)Associated Documents - March 4, 2021•Document ID: 10190358Service Bulletin/Repair InstructionsSTRUCTURE
- Mfr Comm. #:
- PIP5655E
- Date Added:
- April 19, 2021
- Manufacturer:
- GMC
SummaryThis Preliminary information communicates to the dealer technician that the 10L1000 transmission and valve body assembly part restriction has ended. Dealers are advised that these transmissions and valve bodies can now be ordered through the regular GM CCA parts process or PQC process for required dealers (Canada).
Associated Products (4)Associated Documents - March 4, 2021•Document ID: 10190356Service Bulletin/Repair InstructionsSTRUCTURE
- Mfr Comm. #:
- PIP5776B
- Date Added:
- April 19, 2021
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary information communicates that a vehicle may exhibit a misfire condition resulting in misfire codes P0300-P308. Upon diagnosis it may be discovered the lifter has come apart. It is recommended to replace the lifter guide and the four lifters.
Associated Products (10)Associated Documents - March 3, 2021•Document ID: 10191242Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- PIE0612A
- Date Added:
- May 3, 2021
- Manufacturer:
- CHEVROLET
SummaryThis engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to a Dead Battery and/or Shift to Park Lamp Illuminated On Driver Information Center (DIC).
Associated Products (6)Associated Documents - March 1, 2021•Document ID: 10191231Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- 100310001F
- Date Added:
- May 3, 2021
- Manufacturer:
- GMC
SummaryThis informational bulletin provides information on Wheel Balancer Mounting Instructions.
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