Diagnostic Tips

Intermittent Extended Crank or Intermittent Crank No Start and DTC P0341 Set – 2021 Cadillac Chevrolet GMC

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NHTSA ID Number: 10202403 Manufacturer Communication Number: PIP5822 Summary This Preliminary information communicates to technicians to advise dealership technicians to inspect the camshaft exciter wheel and replace it if necessary.   Condition: Some customers may experience an intermittent extended crank or intermittent crank/no start. The technician may find DTC P0341 set with the MIL illuminated. The vehicle will crank … Read more

P0300 Setting After Bulletin 21-NA-154 Was Performed – 2021 Chevrolet Silverado & GMC Sierra

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2021 Chevrolet Silverado

NHTSA ID Number: 10202406 Manufacturer Communication Number: PIP5816A Summary This Preliminary information communicates    A customer vehicle may have a concern of a P0300 setting after bulletin 21-NA-154 has been performed. Unknown Engineering is looking it to this concern   Condition A customer vehicle may have a concern of a P0300 setting after bulletin 21-NA-154 has been performed.   … Read more

Adaptive Cruise Inoperative with Adaptive Cruise Control Temporarily Unavailable Message and code U0422 – 2019-2021 Cadillac Chevrolet GMC

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NHTSA ID Number: 10201294 Manufacturer Communication Number: PIT5845 Summary This Preliminary information communicates information to diagnose adaptive cruse with DTC U0422 in the EBCM.   Condition Customer may comment that the adaptive cruise is inoperative with adaptive cruise control temporarily unavailable message and DTC U0422 in the EBCM. The regular cruise may work when this happens.   Cause Concerns … Read more

Service Front Camera Message – 2017-2021 Chevrolet GMC Cadillac

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NHTSA ID Number: 10201296 Manufacturer Communication Number: PIT5700C Summary This Preliminary information communicates that a vehicle may come to the dealer with a “service front camera” message. The technician is instructed to use the data bus tool to determine if the front view camera module and active safety module are both communicating on the low speed bus. … Read more

DTC P0300 Engine Misfire Detected Not Felt – 2020-2021 Chevrolet Silverado & GMC Sierra 1500

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2021 Chevrolet Silverado 1500

NHTSA ID Number: 10201300 Manufacturer Communication Number: PIP5809A Summary This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off. During inspection Technician may notice DTC P0300 (Engine Misfire Detected) active or stored in history. Customers may also comment that the check engine light was flashing while driving up … Read more