NHTSA ID Number: 10222832 Manufacturer Communication Number: 22-NA-185 Summary This informational bulletin explains how the trans slip or flare can be a normal condition.   Condition Some customers may comment on a 2-3 upshift slip or flare.   Cause This condition is a NORMAL characteristic of the transmission, it will not cause durability concerns and no repair ... Read more

The post 2-3 Upshift Slip or Flare – 2006-2023 Cadillac Chevrolet GMC Hummer first appeard on GM - OEMDTC and is written by oemdtc

NHTSA ID Number: 10178389 Manufacturer Communication Number: PIP5180C   Summary This Preliminary Information communication provides information to the technician about vehicles that have hard start, extended crank, or black smoke from the exhaust when starting. Technician will need to perform fuel quality test, spark test, and a compression test. Technician should also install a vacuum gauge prior ... Read more

The post Diagnostic Tips For Direct Injected Engines Hard Start Cold – 2008-2020 Buick Cadillac Chevrolet GMC Saturn first appeard on GM - OEMDTC and is written by oemdtc

cNHTSA ID Number: 10226384 Manufacturer Communication Number: PIP5175E Summary This Preliminary Information communication provides information to the technician about vehicles that may have a delayed engagement into drive, shudder at a launch, or the transmission is slipping when shifting into 1st, 2nd, 3rd or 4th gears. This may be due to loose stator support to pump ... Read more

The post Slip Or Shudder During A Launch In First Second Third Or Fourth Gears Delayed Engagement Into Drive Clunk Or Bump During The 1-2 Shift – 2013-2021 Cadillac Chevrolet GMC first appeard on GM - OEMDTC and is written by oemdtc

NHTSA ID Number: 10129104 Manufacturer Communication Number: PIP5385D Summary This Preliminary Information communication advises the technician on the steps to diagnose the concern, and the steps to repair the concern of Diagnostic Trouble Code P228C setting. The technician is to inspect the fuel and readings for the High Pressure Fuel Pump. The technician is to drain and ... Read more

The post Repeat P228C Setting On High Feature V6 Engines While Using E85 Fuel – 2011-2017 Buick Cadillac Chevrolet GMC first appeard on GM - OEMDTC and is written by oemdtc

NHTSA ID Number: 10183141 Manufacturer Communication Number: 17NA239   Summary This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time.   SEOCONTENT-START Service Bulletin Bulletin No.: 17-NA-239 Date: October, 2020 INFORMATION Subject: Information on Normal Characteristic – Vehicle Unable to Move After Being Parked for an Extended ... Read more

The post Information on Normal Characteristic – Vehicle Unable to Move After Being Parked for an Extended Period of Time – 2010-2019 Cadillac & Chevrolet first appeard on GM - OEMDTC and is written by oemdtc