Sierra

Unwanted Grade Braking, Low Power, and/or Transmission Busy Shifting / P057B, P057C, and/or P057D – 2012-2018 Cadillac Chevrolet GMC

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2018 Cadillac Escalade

NHTSA ID Number: 10123219 Manufacturer Communication Number: PIT5206F Summary This Preliminary Information communication provides information to the technician with the steps on diagnosing and repairing vehicles that may have unwanted grade braking, reduced engine power with no Driver Information Center messages “ Brake Pedal Override Feature “, transmission busy or frequent shifting up or down, and Diagnostic … Read more

Accessory Tonneau Cover Service Parts – 2014-2018 Chevrolet & GMC

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2018 Chevrolet Silverado

NHTSA ID Number: 10139281 Manufacturer Communication Number: 140879001C Summary This informational bulletin provides a list of parts/replacement parts for the tonneau covers.   13 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2017 CHEVROLET SILVERADO 1500 2014 CHEVROLET SILVERADO 2500 2015-2016, 2018 GMC SIERRA 2017 GMC SIERRA 1500 2014 GMC SIERRA 2500 2015-2016, 2018 GMC SIERRA DENALI … Read more

Various Engine Noises During Cold Start and Warm Engine Operation – 2014-2020 Cadillac Chevrolet GMC

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2019 Chevrolet Silverado

NHTSA ID Number: 10174305 Manufacturer Communication Number: 140604004F   Summary This informational bulletin explains the normal noises an engine may make when the ambient temperature outside is cold or the vehicle has sat for a few hours.   91 Affected Products Vehicles MAKE MODEL YEAR CADILLAC CTS 2016, 2018-2019 CADILLAC ESCALADE 2015-2020 CADILLAC ESCALADE ESV 2015-2020 CHEVROLET … Read more

Rough Harsh Ride – 2015 GMC Sierra 1500 Denali

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2015 GMC Sierra

NHTSA ID Number: 10115089 Manufacturer Communication Number: PIT5476   Summary This Preliminary Information communication provides information to the technician about vehicles that may have rough harsh ride. Technician will need to use the Pico Oscilloscope to evaluate the vehicle. If a rough/harsh/stiff ride has been determined to be the customer’s concern, following evaluation using the Pico Oscilloscope, … Read more

Disabling Or Removing CNG (Compressed Natural Gas) Fuel Systems – 1998-2016 Chevrolet & GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10115093 Manufacturer Communication Number: PIP5339 Summary This Preliminary Information communication provides information to the technician about a customer?s request to remove or disable the Bi-Fuel Compressed Natural Gas system. General Motors does not condone the removal of the original equipped Compressed Natural Gas systems.   Condition/Concern A dealer may receive a customer request to … Read more