Electric Trailer Brake Control Wiring Provisions
These wiring provisions for an electric trailer brake controller are included with the vehicle as part of the trailer wiring package.
The instrument panel contains blunt cut wires behind the steering column for the electric trailer brake controller. The harness contains the following wires:
• Red/Black: Power Supply
• White: Brake Switch Signal
• Gray: Illumination
• Dark Blue: Trailer Brake Signal
• Black: Ground
The electric trailer brake controller should be installed by your dealer or a qualified service center.
See also:
Brake Assist
This vehicle has a brake assist feature designed to assist the driver in stopping
or decreasing vehicle speed in emergency driving conditions. This feature uses the
stability system hydraulic brak ...
Reactivation for Subsequent Owners
Push and follow the prompts to speak
to an Advisor as soon as possible after acquiring the vehicle. The Advisor will
update vehicle records and will explain the OnStar service offers and options ...
Auxiliary Battery
The auxiliary battery provision can be used to supply electrical power to additional equipment that may be added, such as a slide-in camper.
If the vehicle has this provision, this relay will be loca ...





