Service Trailer Brake Message With DTC C159C – 2022 Cadillac Chevrolet GMC
NHTSA ID Number: 10224300 Manufacturer Communication Number: PIT5948 Summary This Preliminary information communicates that when they connect a trailer to the truck that there is a Service Trailer Brake message displayed in the DIC. When checking for DTC’s a C159C sym49 maybe set for the Trailer Brake Control Switch. GM Engineering is aware of the issue and working on a … Read more