2-3 Upshift Slip or Flare – 2006-2023 Cadillac Chevrolet GMC Hummer

General Motors

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

Diagnostic Tips For Direct Injected Engines Hard Start Cold – 2008-2020 Buick Cadillac Chevrolet GMC Saturn

2020 Chevrolet Camaro

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

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

Chevrolet GMC Cadillac

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

Repeat P228C Setting On High Feature V6 Engines While Using E85 Fuel – 2011-2017 Buick Cadillac Chevrolet GMC

2017 Chevy Equinox

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

Information on Normal Characteristic – Vehicle Unable to Move After Being Parked for an Extended Period of Time – 2010-2019 Cadillac & Chevrolet

2019 Chevrolet Corvette

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.     [comment type=”hidden”] Service Bulletin Bulletin No.: 17-NA-239 Date: October, 2020 INFORMATION Subject: Information on Normal Characteristic – Vehicle Unable to Move After Being Parked for … Read more