Express

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

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

Reduced Acceleration at Low Speed and/or Transmission Slipping from a Launch, DTC P0751 – 2010-2019 Cadillac Chevrolet GMC

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2019 Chevrolet Suburban

NHTSA ID Number: 10163902 Manufacturer Communication Number: PI1344C Summary This preliminary informational bulletin adds the 2016 model year to diagnostic tips and repair information to correct a customer concern of reduced acceleration at low speed and/or transmission slipping from a launch, DTC P0751 set.   151 Affected Products Vehicles MAKE MODEL YEAR CADILLAC ATS 2013-2015 CADILLAC CTS … Read more

Normal Mode Powertrain Grade Braking Feature – 2013-2019 Cadillac Chevrolet GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10162108 Manufacturer Communication Number: PIT5202E Summary This Preliminary Information communication provides information to the technician about vehicles that are equipped with 6L80 Regular Production Option Code (MYC), 6L90 Regular Production Option Code (MYD) or 8L90 Regular Production Option Code (M5U) Automatic Transmission, now have Powertrain Grade Braking. Powertrain grade braking assists when driving on … Read more

Exhaust Fluid Quality Poor Message Displayed, Reductant Fluid Quality Test Status will Pass, Time Out, Fail or Interrupt – 2010-2016 Chevrolet & GMC with Duramax Diesel 6.6L Engine

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2016 Chevrolet Silverado

NHTSA ID Number: 10126345 Manufacturer Communication Number: PI1214B   Summary This preliminary informational bulletin provides service personnel with a guide to determine which SI documents and scan tool parameters to reference when encountering an: Exhaust Fluid Quality Poor message displayed, and a Reductant Fluid Quality Test status that will Pass, Time Out, Fail or Interrupt and other … Read more