• Close-up photo of 2008-2009 Chevrolet Silverado 1500 trailer brake control module 20850923, VIN-programmed to resolve DTC C1112 and stabilize towing brakes with visible connectors and frame mount.
  • VIN-programmed 2008-2009 Silverado TBCM 20850923 with electrical connectors. A direct-fit solution for 'Service Trailer Brake' errors.
  • Programmed 2008-2009 Silverado TBCM, part 25788981. This trailer brake control module resolves 'Service Trailer Brake' warnings and ensures towing safety.
  • Front view of a 2007-2009 Silverado 2500 TBCM, part 25907533, showing the two black electrical connectors. This module fixes the 'Service Trailer Brake System' warning.
  • Front view of a 2007-2009 Silverado 2500 TBCM, part 25854535, showing the black plastic housing and electrical connection ports for a plug-and-play fix.
  • Programmed 2007-2009 Silverado 2500 TBCM, part 25788981. Shows the module housing and electrical connectors, ready for installation to fix 'Service Trailer Brake System' warnings.
  • Programmed 2007-2009 Silverado Trailer Brake Module 20850923. This TBCM fixes "Service Trailer Brake System" errors and restores safe towing for GM trucks.
  • 2007-2009 Silverado 3500 Trailer Brake Module 25907533. Pre-programmed unit to fix 'Service Trailer Brake System' warnings and ensure safe towing.
  • 2007-2009 Silverado Trailer Brake Module 25854535. VIN-programmed TBCM to fix 'Service Trailer Brake' warnings and restore towing safety.
  • Programmed 2007-2009 Silverado TBCM 25788981, showing electrical connectors. A direct-fit solution to clear trailer brake system warnings and restore towing safety.
  • Programmed 2007-2009 Silverado 3500 TBCM, part 20850923. Shows connectors; a direct fix for trailer brake system errors.

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