A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
C159C ← What does this code mean?3 Results
CADILLAC, CHEVROLET, GMC · 2023-02-14
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 released an updated trailer brake switch, See Customer Satisfaction Program N222384930.
CADILLAC, CHEVROLET, GMC · 2022-10-06
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 fix.
CADILLAC, CHEVROLET, GMC · 2022-09-27
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 fix.