Yukon

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

Creak Click Pop Crack Type Noise From Front Suspension/Frame Area While Making Turns – 2015-2020 Cadillac Chevrolet GMC

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2020 Chevrolet Tahoe

NHTSA ID Number: 10178382 Manufacturer Communication Number: PIT5533C   Summary This Preliminary Information communication provides information to the technician about vehicles that have a creak, click, pop, and or crack type noise from the front suspension or front frame area while making tight turns. Technician will need to loosen and then re-torque the four front frame cross … 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

Intermittent Parasitic Battery Draw Below 40 Degrees F / Dead Battery / Slow Crank – 2018-2020 Buick Cadillac Chevrolet GMC

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2020 Chevrolet Camaro

NHTSA ID Number: 10178303 Manufacturer Communication Number: PIT5745   Summary This Preliminary information communicates and issue with the memory seat module waking up the low speed GM lan bus and causing a battery draw.   72 Affected Products Vehicles MAKE MODEL YEAR BUICK ENVISION 2018-2020 BUICK LACROSSE 2018-2019 CADILLAC ATS 2018-2019 CADILLAC CT6 2018-2020 CADILLAC CTS 2018-2019 … Read more

Service Safety Restraints System With DTC B14DC – 2021 Chevrolet Tahoe & GMC Yukon

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2021 GMC Yukon

NHTSA ID Number: 10185715 Manufacturer Communication Number: PIT5759J   Summary This Preliminary information communicates an issue with the SIR MIL turning on and DTC B14DC setting caused by high resistance at the F106DA Driver’s front seat inboard air bag connector.  Dealers are to replace the F106DA Driver’s front seat inboard air bag connector pigtail.   4 Affected Products Vehicles MAKE … Read more