CT4

Super Cruise Enhancement: Trailering and Active Lane Change – 2021-2022 Cadillac

by
Cadillac

NHTSA ID Number: 10222835 Manufacturer Communication Number: 22-NA-191 Summary This service bulletin provides repair information to correct a customer concern of Super Cruise Enhancement: Trailering and Active Lane Change failed installation.   Condition Some customers may comment that the Super Cruise enhancement purchased through OnStar application has failed installation. Note: This is a customer pay enhancement through … Read more

Information On Vehicles Built With Heated And Vented Seats Disabled / Heated Steering Wheel Disabled / Front Rear Park Assist Disabled / Wheel Well Liners / Column Lock / Rocker Protectors / Express Up Rear Windows – 2022 Buick Cadillac Chevrolet GMC

by
Chevrolet Buick GMC Cadillac

NHTSA ID Number: 10224283 Manufacturer Communication Number: PIT5883E Summary This Preliminary information communicates vehicles being built without certain options due to a parts shortage.   Condition This is an informational PI to bring awareness to certain vehicle options being disabled. Please be aware that some vehicles, identified by an RPO code, are built with the following option(s) … Read more

2015-2022 Cadillac Chevrolet GMC

by
Chevrolet GMC Cadillac

NHTSA ID Number: 10222670 Manufacturer Communication Number: 22-NA-184 Summary This informational bulletin advises the technician of possibly installing the incorrect 1-2-7-8-R clutch fluid passage seal and which seal should be used with measurements of the seal.   Condition Technician’s may find a no movement condition after replacement of the valve body on the 8L45 or 8L90 automatic … Read more

8L45 8L90 No Movement After Valve Body Replacement – 2015-2023 Cadillac Chevrolet GMC

by
Chevrolet GMC Cadillac

NHTSA ID Number: 10220314 Manufacturer Communication Number: 22-NA-176 Summary This technical bulletin provides information on a possible bolt and guide pin that may be missing from the control valve which will need to be installed to correct the repair.   Condition Some technicians may comment on no movement after the valve body replacement.   Cause This may … Read more

Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when Lightly or Moderately Accelerating, Forcing an 8-7 or 8-6 Downshift – 2019-2021 Cadillac Chevrolet GMC

by
Chevrolet GMC Cadillac

NHTSA ID Number: 10219291 Manufacturer Communication Number: 21-NA-275 Summary This service bulletin provides repair information to correct customer concerns of Rear Wheel Lock Up, ABS Event, Loud Bang and a Flashing “D” on Driver Information Center (DIC) when Lightly or Moderately Accelerating Forcing an 8-7 or 8-6 Downshift.   Condition Some customers may comment on the following … Read more