Information on Excessive Diesel Exhaust Fluid (DEF) Usage – 2019-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10222782 Manufacturer Communication Number: 20-NA-082 Summary This informational bulletin explains why more DEF is being used in diesel engines due to new emission standards.   Condition Some customers may comment that excessive DEF is being used. Some technicians may find no codes set or messages on the DIC.   Information The current 2020 Silverado/Sierra … Read more

Excessive Wind Noise Heard Coming from Sunroof Front Edge Area, Front Length of Sunroof Window Inner Seal May Become Loose or Detached – 2022-2023 Chevrolet Bolt EUV

2023 Chevrolet Bolt EUV

NHTSA ID Number: 10222840 Manufacturer Communication Number: 22-NA-197 Summary This service bulletin provides repair information to correct a customer concern of excessive wind noise heard coming from the sunroof front edge area, front length of sunroof window inner seal may become loose or detached.   Condition Some customers may comment on hearing excessive wind noise from the … Read more

N222390180 Half-Shaft Separation – 2023 Chevrolet Blazer & Traverse

Chevrolet

February 2, 2023 NHTSA CAMPAIGN NUMBER: 23V042000 Half-Shaft Assembly Missing Retaining Ring A missing retaining ring on the half-shaft can cause half-shaft inner joint separation, resulting in a loss of drive power or vehicle rollaway when the vehicle is placed in park. Either of these scenarios can increase the risk of a crash.   NHTSA Campaign … Read more

N222379820 Essential Operating and Safety Info Manual Not Installed – 2023 Chevrolet & GMC

Chevrolet & GMC

NHTSA ID Number: 10222803 Manufacturer Communication Number: N222379820 Summary Customer Satisfaction Program – Certain vehicles may have the Essential Operating and Safety Info Manual missing from the vehicle. Dealers are to place the Essential Operating and Safety Info Manual into the vehicle’s glovebox. Because this manual can be easily placed in the glovebox by the customer, and … Read more

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