Diagnostic Tips

Engine Misfire, Malfunction Indicator Lamp (MIL) Illuminated – DTC P0300 Set – 2017-2022 Buick Chevrolet GMC Holden

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2022 Chevrolet Equinox

NHTSA ID Number: 10205575 Manufacturer Communication Number: 21NA255   Summary This service bulletin provides repair information to correct a customer concern of an Engine Misfire, Malfunction Indicator Lamp (MIL) Illuminated – DTC P0300 Set.     22 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE 2021-2022 CHEVROLET CRUZE 2018-2019 CHEVROLET EQUINOX 2018-2022 CHEVROLET MALIBU 2018-2022 CHEVROLET TRAX … Read more

Malfunction Indicator Lamp (MIL) Illuminated with DTC P26BB Set – 2019-2022 Buick Cadillac Chevrolet GMC

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2022 Chevrolet Trailblazer

NHTSA ID Number: 10205576 Manufacturer Communication Number: 21NA256   Summary This service bulletin provides repair information for dealers/technicians to correct a customer concern of a Malfunction Indicator Lamp Illuminated with DTC P26BB Set.     29 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCORE 2019-2022 BUICK ENCORE GX 2020-2022 CADILLAC CT4 2020-2022 CADILLAC CT5 2020-2022 CADILLAC XT4 … Read more

TCC Shudder Surge Fishbite Chuggle – 2019-2022 Buick Cadillac Chevrolet GMC

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2022 Chevrolet Trailblazer

NHTSA ID Number: 10202384 Manufacturer Communication Number: PIP5608H   Summary This Preliminary information communicates to perform a transmission fluid drain and fill to correct a TCC shudder concern.     21 Affected Products Vehicles MAKE MODEL YEAR BUICK ENCLAVE 2019-2022 CADILLAC XT5 2020-2022 CADILLAC XT6 2020-2022 CHEVROLET BLAZER 2019-2022 CHEVROLET TRAVERSE 2019-2022 GMC ACADIA 2020-2022   Condition … Read more

MIL illuminated with DTC P1098 and/or P26BB – 2020 Buick Cadillac Chevrolet GMC

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2020 Chevrolet Blazer

NHTSA ID Number: 10206730 Manufacturer Communication Number: PIP5675G   Summary This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history.  That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing … Read more

2022 Chevrolet GMC

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2022 Chevrolet Suburban

NHTSA ID Number: 10206731 Manufacturer Communication Number: PIT5876   Summary This Preliminary information communicates to GM dealer that GM engineering is aware of and working on a solution to the map pop up concern     5 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SUBURBAN 2022 CHEVROLET TAHOE 2022 GMC HUMMER EV 2022 GMC YUKON 2022 GMC … Read more