Table 1 shows one common electrical system related problems of the 2012 Chevrolet Silverado 3500.
| Problem Category | Number of Problems |
|---|---|
| Integrated Trailer Brake Control problems |
2012 Silverado 3500hd with dealer installed dejana rugby dump body the dump body hoist makes contact with the electronic trailer brake/body control module eventually cracking open or damaging the top of the module and allowing moisture/water inside damaging the module. This causes a no start condition and or erratic gauges, door locks, abs & brake lights to come on, drivability issues truck can go into a limp mode with no shifting etc. Test equipment shows no communication to ecm errors and drivetrain- problem will occur while driving. When the trailer brake control module is unplugged all symptoms will go away and truck will function normal. This problem started with a service trailer brake warning from the vehicle information center in the dash.