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

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 …

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