Diagnostic Tips

Service 4wd Message With DTC C0392 or C0396 Stored In TCCM – 2014-2018 Chevrolet GMC Cadillac

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2016 Chevrolet Silverado

NHTSA ID Number: 10144458 Manufacturer Communication Number: PIP5304B Summary This Preliminary Information communication provides information to the technician about vehicles that have a “Service 4WD Message” displayed in the Driver Information Center. Technician may find Diagnostic Trouble Codes C0392 or C0396. Technician should check the terminal tension on the Transfer Case Control Module X1 connector. Technician should … Read more

Slip or No Reverse or 3rd Gear, No Forward, DTC P0776 – 2008-2011 Buick Chevrolet GMC Pontiac Saturn

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2011 Chevrolet Equinox

NHTSA ID Number: 10113718 Manufacturer Communication Number: PI0780A   Summary This preliminary informational bulletin provides repair information to correct a customer concern of slip or no reverse or 3rd gear, no forward, MIL illuminated, DTC P0776 set.   16 Affected Products Vehicles BUICK LACROSSE 2010-2011 BUICK REGAL 2011 CHEVROLET CAPTIVA 2011 CHEVROLET CRUZE 2011 CHEVROLET EQUINOX 2010-2011 … Read more

Security Light on Intermittently / No Crank/No Start or Start Stall / Keyless Access Vehicles May Display No Remote/Fob Detected / Poor or No RKE Range / Service TPM – GM

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2018 Chevrolet Camaro ZL1

NHTSA ID Number: 10201176 Manufacturer Communication Number: PIC5650J   Summary This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this … Read more

Engine Misfire/Tick Noise. Malfunction Indicator Lamp (MIL) Illuminated with DTC P0300 Set – 2014-2018 Cadillac Chevrolet & GMC

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2018 Cadillac Escalade

NHTSA ID Number: 10187628 Manufacturer Communication Number: 150601002K   Summary This service bulletin provides a procedure to repair the valve lifter oil manifold and/or lifters to correct the customers concern of engine misfire, ticking noise and/or MIL Illuminated.   64 Affected Products Vehicles MAKE MODEL YEAR CADILLAC CTS 2016-2019 CADILLAC ESCALADE 2015-2019 CADILLAC ESCALADE ESV 2015-2019 CHEVROLET … Read more

Poor Engine Performance P0089 P228D P0171 Whine Noise – 2010-2011 Buick Chevrolet & GMC

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2011 Chevrolet Equinox

NHTSA ID Number: 10114592 Manufacturer Communication Number: PIP5203C   Summary This Preliminary Information communication provides information to the technician about a service engine soon light on. Technician will find diagnostic trouble codes P0089 and P228D set in the engine control module. This concern could be due to an incorrect intake camshaft or camshaft actuator sprocket. A diagnostic … Read more