Service Update N202316880 Transmission Control Module (TCM) Software Error/Mismatch – 2020 Chevrolet Corvette

2020 Chevrolet Corvette

NHTSA ID Number: 10184524 Manufacturer Communication Number: N202316880   Summary Service Update – Certain 2020 model year Chevrolet Corvette vehicles may have a condition where diagnostic trouble codes (DTC’s) P1967 and/or P1968 may falsely set in the transmission control module (TCM) due to an internal software misalignment. GM will update the software in the TCM. Owners who … Read more

Customer Satisfaction Program N202315510 Incorrect Trailering Label – 2021 Chevrolet Tahoe & Yukon

2021 Chevrolet Tahoe

NHTSA ID Number: 10184525 Manufacturer Communication Number: N202315510   Summary Customer Satisfaction program. Certain vehicles may have a condition in which the trailering label has zeroed out information on the label. Information such as Gross Combined Weight Rating (GCWR), Conventional Trailering Weight Rating (TWR) and Max Tongue Weight may show a zero instead of the proper amounts. … Read more

Customer Satisfaction Program N202313960 Daytime Running Lamp (DRL) Color Change – 2021 Chevrolet Suburban & Tahoe

2021 Chevrolet Suburban

NHTSA ID Number: 10184526 Manufacturer Communication Number: N202313960   Summary Customer Satisfaction Program – Certain 2021 model year Chevrolet Suburban and Tahoe vehicles, may have a condition in which the daytime running lamps may shift to a bluer shade of white in its lit appearance. This will remain in effect until the headlamp cools. Replace left and … Read more

Service Update N202319660 Valve Spring Failure – 2021 Cadillac Chevrolet GMC

2021 Chevrolet Tahoe

NHTSA ID Number: 10187618 Manufacturer Communication Number: N202319660 01   Summary Service Update. Certain vehicles may present a broken engine valve spring. This may cause the engine to run rough, an engine knocking or ticking noise, a check engine light illumination, or a possible vehicle stall. Dealers are to perform the inspection procedure contained within this bulletin. … Read more

Service Update N202313620 Incorrect Torque Badge on Vehicle Decklid – 2020 Cadillac CT4

2020 Cadillac CT4

NHTSA ID Number: 10184528 Manufacturer Communication Number: N202313620   Summary Service Update. On vehicles equipped with a 2.7L turbo engine (RPO L3B), the incorrect 450T badge was applied to the decklid. Dealers are to remove the incorrect 450T badge and replace with the correct 500T badge.   SEOCONTENT-START GLOBAL SAFETY FIELD INVESTIGATIONS DCS5581 URGENT – DISTRIBUTE IMMEDIATELY … Read more