Diagnostic Tips

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

Exhaust Fluid Low – Exhaust Fluid Empty – Exhaust Fluid Range and Service Exhaust Fluid Messages Difficult To Reset – Including Cold Weather Operation – 2015 Chevrolet & GMC

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2016 Chevrolet Silverado

NHTSA ID Number: 10114968 Manufacturer Communication Number: PIP4864Q   Summary This Preliminary Information communication provides information to the technician about vehicles that may have “Exhaust Fluid Low”, “Exhaust Fluid Empty – Refill Now”, “Exhaust Fluid Range: XXX” or “Service Exhaust Fluid – See Owners Now” on the Driver Information Center. If the technician is working on 2010 … Read more

Front Heated Seats – 2014-2019 Cadillac Chevrolet & GMC

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2019 Cadillac Escalade

NHTSA ID Number: 10154558 Manufacturer Communication Number: PIT5434C   Summary This Preliminary Information communication provides information to the technician only to provide additional tips when diagnosing a front heated seat concern and is not meant to be a diagnostic flow chart or replace Service Information.  Always, perform and refer to Service Information for the latest diagnostic information … Read more