U2099

Power Door Locks Cycle or Intermittently Inoperative – Loss of Data With Multiple U-Codes –Unwanted Seat or Memory Mirror Movement or Doesn’t Function –Intermittent No Crank/No Start or Reduced Power – 2017-2021 GMC Acadia & Cadillac XT5

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2019 GMC Acadia

NHTSA ID Number: 10185718 Manufacturer Communication Number: PIT5606J   Summary This Preliminary information communicates an Intermittent No Crank, No Start, or Reduced Power loss of data multiple U codes or Intermittent Power Door Locks inoperative, unwanted seat or mirror movement.  Inspect harness for chaffed by the I-shaft at the base of the steering column. If chaffed, repair damaged wires … Read more

Instrument Panel Cluster (IPC) Warning Lamps And / Or MIL Are Illuminated Diesel Exhaust Fluid (DEF) Message Displayed Various DTCs Set (Inspect Wiring Harnesses for Chafing) – 2016-2021 Chevrolet Colorado & GMC Canyon

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2018 Chevrolet Colorado

NHTSA ID Number: 10184101 Manufacturer Communication Number: PIP5416D   Summary This Preliminary Information communicates to the technician the potential areas of concern in which the engine wiring harness may chafe. It describes in detail what to look for. If you encounter any of these specific described chafes, inspect, repair (as necessary) and route the wiring harness away from … Read more

Diagnosing High Speed LAN Concerns – 2007-2014 Cadillac Chevrolet GMC Hummer

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2014 Cadillac Escalade

NHTSA ID Number: 10114600 Manufacturer Communication Number: PIT4667D Summary This Preliminary Information communication advises the technician of additional steps for diagnosing General Motors high speed local area network. This should only be used if normal service information doesn’t lead to a diagnosis this is not a replacement for normal service information.   107 Affected Products Vehicles MAKE … Read more