NHTSA ID Number: 10161014 Manufacturer Communication Number: PIP5647 Summary This Preliminary information communicates A vehicle may have a concern of running poor and stalling. No trouble codes may be set referencing this condition. Fuel trims around -20% may be observed on both banks. Engine oil level  will be found over full and have a  fuel odor. It ... Read more

The post Low Mileage Running Poorly With Rich Fuel Trims and/or Crank Case Overfull – 2016-2019 Buick Chevrolet GMC first appeard on GM - OEMDTC and is written by oemdtc

NHTSA ID Number: 10138017 Manufacturer Communication Number: 14-07-30-001G   Summary This informational bulletin explains how to diagnosis and perform a transmission fast learn procedure to fix a harsh shift at low speeds. Shifts that feel too firm (harsh), slips or flares.   Low mileage vehicles equipped with the 8L90 automatic transmission with shifts that feel too firm ... Read more

The post Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts – 2015 Cadillac Chevrolet GMC first appeard on GM - OEMDTC and is written by oemdtc