No A/C – A/C Blows Warm Air – DTC P0534 – 2021 Chevrolet Bolt

2021 Chevrolet Bolt

NHTSA ID Number: 10193463 Manufacturer Communication Number: PIC6436   Summary This Preliminary information communicates to technician’s if they have a low mileage vehicle with an Air Conditioning inoperative condition with a P0534 to inspect the Air Compressor for leak and the possible area of the leak. Once verified of the leak in the compressor area to replace … Read more

MIL/Service Engine Soon Light Illuminated with DTC P11D5 set – 2021 Chevrolet Silverado & GMC Sierra 2500HD/3500HD

2021 Chevrolet Silverado

NHTSA ID Number: 10193464 Manufacturer Communication Number: PIP5775B   Summary This Preliminary information communicates to dealership technicians that a P11D5  may be cause by a software anomaly,  check to see if campaign N212331790 applies, reflash the ECM and release the vehicle.     4 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 2500 2021 CHEVROLET SILVERADO 3500 2021 … Read more

Park Assist Off Message / Unwanted Or False Park Assist Alerts / No DTCs – 2019-2021 Chevrolet Silverado & GMC Sierra

2021 Chevrolet Silverado

NHTSA ID Number: 10193466 Manufacturer Communication Number: PIT5836   Summary This Preliminary information communicates and issue with the park assist off message or unwanted/false parking assist alerts and provide diagnostics tip for dealership to inspect the parking assist sensor/bezel mounting in the front and rear bumpers     6 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO … Read more

Belt Chirp Noise and-or Harmonic Balancer Rubbing on Timing Cover – 2019-2020 Chevrolet Silverado & GMC Sierra & Silverado 4500HD, 5500HD, 6500HD

2020 Chevrolet Silverado

NHTSA ID Number: 10193467 Manufacturer Communication Number: PIP5742A   Summary This Preliminary information communicates to the dealer technicians that a belt chirp or rubbing noise may be caused by the harmonic balancer out ring moving backward on the pulley and contacting the front cover.     10 Affected Products Vehicles MAKE MODEL YEAR CHEVROLET SILVERADO 1500 2019-2020 … Read more

History DTCs To Ignore / NO SES / NO Malfunction Indicator Lamps / NO Warning Messages – 2021 Buick Envision

2021 Buick Envision

NHTSA ID Number: 10193468 Manufacturer Communication Number: PIT5837   Summary This Preliminary information communicates an issues with false codes setting in vehicles due to timing issues between the modules.     1 Affected Product Vehicle MAKE MODEL YEAR BUICK ENVISION 2021   Condition A technician may find any number of the following DTCs set in History. These history … Read more