Trailer Wiring Harness
Heavy-Duty Trailer Wiring Harness Package
The vehicle has a seven-pin universal heavy-duty trailer connector attached to the rear bumper beam next to the integrated trailer hitch.
The seven-wire harness contains the following trailer circuits:
- Yellow: Left Stop/Turn Signal
- Dark Green: Right Stop/Turn Signal
- Brown: Taillamps
- White: Ground
- Light Green: Back-up Lamps
- Red: Battery Feed*
- Dark Blue: Trailer Brake*
*The fuses for these two circuits are installed in the underhood electrical center, but the wires are not connected. They should be connected by your dealer or a qualified service center.
If charging a remote (non-vehicle) battery, press the tow/haul mode button located at the end of the shift lever. This will boost the vehicle system voltage and properly charge the battery. If the trailer is too light for tow/haul mode, turn on the headlamps as a second way to boost the vehicle system and charge the battery.
See also:
License Plate Lamp
1. Remove the two screws holding each of the license plate lamps to the molding
that is part of the liftgate.
2. Twist and pull the license plate lamp assembly forward through the molding
openi ...
General Information
For service and parts needs, visit your dealer. You will receive genuine GM
parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:
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Vehicle Information Menu Items
(Vehicle Information): Press to
scroll through the following menu items:
Oil Life
Press the vehicle information button until OIL LIFE REMAINING displays. This
display shows an estimate of the o ...