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

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

Squeak Noise Heard Coming from Front Passenger Side of Vehicle While Driving Over Bumps When Vehicle at Normal Operating Temperature – 2019-2023 Chevrolet Camaro

2023 Chevrolet Camaro

NHTSA ID Number: 10220316 Manufacturer Communication Number: 22-NA-178 Summary This service bulletin provides repair information to correct a customer concern of a squeak noise heard coming from the front passenger side of the vehicle while driving over bumps when vehicle is at normal operating temperature.   Condition Some customers may comment on hearing a squeak noise coming … Read more

Right Rear Door Alignment – 2021-2023 Cadillac Chevrolet GMC

Chevrolet GMC Cadillac

NHTSA ID Number: 10220317 Manufacturer Communication Number: 22-NA-179 Summary This technical bulletin provides the procedure to align the right rear door to correct the condition of Right Rear Door Alignment.   Condition Some customers may comment on the right rear door not sitting flush and/or the right rear door sticks out excessively at the bottom when closed. … Read more

TCCM Drivability DTCs and Possible Low Battery Charge – 2019-2023 Chevrolet Silverado 4500 HD, 5500HD, 6500HD

2023 Chevrolet Silverado 6500HD

NHTSA ID Number: 10224305 Manufacturer Communication Number: PIP5853B Summary This PI communicates to dealers and technicians a possible diode issue in the TCCM, and how to properly diagnose for a diode issue.   Condition The vehicle may have a concern with the TCCM. causing DTC to set (see below) and possible a discharged battery. DTCs setting in … Read more

Appearance of Surface Cracks on Rotors – 2022-2023 Cadillac CT5

2023 Cadillac CT5

NHTSA ID Number: 10224306 Manufacturer Communication Number: PIC6476 Summary This Preliminary information communicates that the appearance of cracks on carbon ceramic rotors is normal and does not impact the performance or durability of the brake system.   Condition A customer may comment that the carbon ceramic rotors on their vehicle appear to have cracks on the surface of … Read more