Info

Identifying Non-GM ECM Calibration Use and Power-up Hardware Detection in Duramax Diesel Engines Using GDS 2 – 2019-2023 Cadillac Chevrolet GMC

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General Motors

NHTSA ID Number: 10222660 Manufacturer Communication Number: 20-NA-090 Summary This informational bulletin provides a way for the technician to identify if the ECM has been modified.   General Motors Position on Aftermarket Power-Up Devices General Motors does not support or endorse the use of devices or modifications that when installed, increase the engine horsepower and torque. This … Read more

GF9 9T45/50/60/65 Transmission Fluid Leak – 2020 Buick Cadillac Chevrolet GMC

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2020 Chevrolet Blazer

NHTSA ID Number: 10178388 Manufacturer Communication Number: PIP5720A   Summary This Preliminary information communicates that a possible trans fluid leak found may only be residual fluid that was left during the assembly process with no repairs needed if no dye is detected after cleaning and re-evaluation.   10 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE 2020 BUICK … Read more

Information on Head-Up Display (HUD) on Model Year 2017 and Newer Vehicles – Rotational Feature that Allows for Adjusting of Angle of HUD Image – 2017-2020 Buick Cadillac Chevrolet GMC

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2020 Chevrolet Corvette

NHTSA ID Number: 10178255 Manufacturer Communication Number: 19NA010   Summary This informational bulletin provides information for dealers/technicians on Head-Up Display (HUD) on Vehicles Model Year 2017 and Newer Having Rotational Feature that Allows for Adjusting of Angle of HUD Image.   47 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2018-2020 CADILLAC ATS 2017-2019 CADILLAC CT6 2017-2019 … Read more

Premature or Accelerated Tire Wear On Vehicles Equipped with Various Sizes of Michelin Premier LTX Tires – 2017-2020 Buick Cadillac Chevrolet GMC

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2020 Chevrolet Blazer

NHTSA ID Number: 10178257 Manufacturer Communication Number: 19NA078   Summary This warranty administration bulletin provide policy information on tires are not meeting tread depth expectations, or wearing out (reaching 2/32)) too quickly.   18 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2017-2020 CADILLAC XT5 2018-2020 CHEVROLET BLAZER 2019-2020 CHEVROLET EQUINOX 2018-2020 GMC ACADIA 2017-2019 GMC TERRAIN … Read more

Side Blind Zone (SBZ) Module Part Restriction – 2020 Cadillac & Chevrolet

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2020 Chevrolet Corvette

NHTSA ID Number: 10178392 Manufacturer Communication Number: PIC6388B   Summary This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, and CT5 Side Blind Zone Module.   3 Affected Products Vehicles MAKE MODEL YEAR CADILLAC CT4 2020 CADILLAC CT5 2020 CHEVROLET CORVETTE 2020   Parts Information Quantity Description Part Number 1 Side Blind Zone … Read more