Diagnostic Tips

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

A/C Blows Warm – Evaporator Freeze up Intermittent – 2017-2019 Chevrolet Colorado & GMC Canyon

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2019 Chevrolet Colorado

NHTSA ID Number: 10163680 Manufacturer Communication Number: PIT5625B Summary This preliminary information is to alert the service technician of a potential A/C evaporator freezing concern , engineering is investigating.   6 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET COLORADO 2017-2019 GMC CANYON 2017-2019     SEOCONTENT-START Bulletin No.: PIT5625B Published date: 07/29/2019 Preliminary Information PIT5625B A/C Blows … Read more

SES Lamp P208E Set – 2016-2019 Chevrolet LCF

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2019 Chevrolet Low Cab Forward

NHTSA ID Number: 10163676 Manufacturer Communication Number: PIP5662 Summary This Preliminary information communicates A vehicle may have a concern of a MIL illuminated with a P208E set in the DEF control module. Possible stuck DEF injector If the diagnostic leads to the DEF injector, replace the DEF injector and the DEF Supply Pump Filter Element   11 Affected Products Vehicles … Read more

Vehicle Will Not Charge DTC P0D26 – 2011-2016 Cadillac Chevrolet

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2015 Chevrolet Volt

NHTSA ID Number: 10163672 Manufacturer Communication Number: PIP4905E Summary This Preliminary Information communication provides information to the technician about vehicles that have a no charge condition when using either the stationary 240V or the 120V charger. Technician may find Diagnostic Trouble Code P0D26 set in the Hybrid Powertrain Control Module 2. Technician will need to check the … Read more

Service Park Assist Message /Hands Free Lift Gate Inoperative – 2019 Chevrolet Blazer

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2019 Chevrolet Blazer

NHTSA ID Number: 10160976 Manufacturer Communication Number: PIT5679 Summary This Preliminary information communicates that a vehicle may be encountered with a “service park assist system” message or a rear lift gate that will not open passively. The technician is instructed to inspect connector X400 for evidence of water intrusion. The technician is instructed to replace the harness … Read more