Malfunction Indicator Lamp (MIL) Illuminated – DTC P026A Set – 2017-2023 Chevrolet Silverado & GMC Sierra

2023 Chevrolet Silverado

NHTSA ID Number: 10222655 Manufacturer Communication Number: 18-NA-011 Summary Informational bulletin explaining how a plow may cause overheating and engine damage when traveling over 45 mph.   Condition Some customers may comment that the MIL is illuminated Some technicians may find DTC P026A set on vehicles with a snow plow installed.   Information Note: When a snow … Read more

Identify Engine Misfiring and/or Malfunction Indicator Lamp (MIL) Illuminated – DTC P0300 Setting – 2017-2023 Chevrolet Silverado & GMC Sierra

2023 Chevrolet Silverado

NHTSA ID Number: 10222659 Manufacturer Communication Number: 19-NA-187 Summary This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.   Condition Some customers may comment on one or more of the following conditions: MIL illuminated Engine misfire Some technicians may find DTC P0300 set in the Engine Control Module (ECM). … Read more

Malfunction Indicator Lamp (MIL) Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set – 2000-2022 GM Passenger Cars and Trucks

Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10219266 Manufacturer Communication Number: 20-NA-065 Summary This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.   Condition Some customers may comment that the MIL is illuminated. Technicians may find one or … Read more

Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set – 2020-2022 Cadillac Chevrolet

Cadillac & Chevrolet

NHTSA ID Number: 10222797 Manufacturer Communication Number: 22-NA-019 Summary This service bulletin provides repair information to correct a customer concern of Malfunction Indicator Lamp (MIL) Illuminated with DTC P2251 and/or DTC P2254 Set.   Condition Some customers may comment on a MIL illuminated in the driver information center (DIC). Technicians may find DTC P2251 (Heated Oxygen Sensor … Read more

A/C Compressor Normal Noise and Vibration – 2019-2022 Chevrolet Colorado

2022 Chevrolet Colorado

NHTSA ID Number: 10222800 Manufacturer Communication Number: 22-NA-154 Summary This informational bulletin is for Korea to see normal operation of A/C compressor.   Condition Some customers may comment on the following: A/C compressor may intermittently exhibit higher than usual levels of noise and vibration Occasionally a booming sound may be heard between 1500 to 2000 engine RPM … Read more