Diagnostic Tips

Diagnostic Tip – Outside Temperature Will Not Update Or Inaccurate – 2014-2019 Buick Cadillac Chevrolet GMC

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General Motors

NHTSA ID Number: 10143456 Manufacturer Communication Number: PIT5232E Summary This Preliminary Information communication provides information to the technician the steps to diagnose and repair the concern of the display is showing 32° F (0° C) after a battery or reprogramming a module. The outside temperature will begin to update if driven above 20 mph for at least … Read more

Engine Vibration – Resonance/Boom Between 40 To 60 MPH – 2010-2017 Chevrolet Equinox & GMC Terrain

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2017 Chevrolet Equinox

NHTSA ID Number: 10080685 Manufacturer Communication Number: PIP5277B   Summary THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR VEHICLES THAT HAVE A RESONANCE TYPE VIBRATION OCCURS BETWEEN 40 TO 60 MPH. IN MOST CASES THE ENGINE MUST BE UNDER A SLIGHT LOAD SUCH AS A/C COMPRESSOR ENGAGEMENT, LIGHT THROTTLE, … Read more

Unwanted Content Theft Alarm Sounds – 2015-2019 Cadillac Chevrolet & GMC

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2019 Cadillac Escalade

NHTSA ID Number: 10156946 Manufacturer Communication Number: PIT5379E   Summary This Preliminary Information communication provides information to the technician about vehicles that may have a content theft alarm sounding for no apparent reason. Technician may use all published Service Information diagnostics and has not found the cause of the unwanted content theft alarm sounding. Technician should use … Read more

Intermittent Crank/No Start with DTC P1682 Set – 2012-2015 Buick Verano & 2011-2015 Chevrolet Cruze

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2015 Chevrolet Cruze

NHTSA ID Number: 10113563 Manufacturer Communication Number: PI1422   Summary This preliminary informational bulletin provides repair information to correct a customer concern on an intermittent crank/no start in cold climate conditions, or a technician finding DTC P1682 set as current or in history.     9 Affected Products Vehicles MAKE MODEL YEAR BUICK VERANO 2012-2015 CHEVROLET CRUZE … Read more

Excessive Oil Consumption – Perform Oil Consumption Test and/or Install Piston and Piston Ring Kit – 2010-2013 Buick Chevrolet GMC

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2013 Buick LaCrosse

NHTSA ID Number: 10163271 Manufacturer Communication Number: 130601003I   Summary This technical bulletin provides Correction information to find the cause of oil consumption. Techs should perform an oil consumption test first, check for oil leaks and if rate of oil consumption is high, then replace the pistons and the rings.     20 Affected Products Vehicles MAKE … Read more