CHEVROLET 2010 Suburban - Manual (Page 433)

Black plate (69,1) Chevrolet Tahoe/Suburban Owner Manual - 2010
Heavy-Duty Trailer Wiring Harness Package
The vehicle is equipped with the seven-wire trailer
towing harness. This harness with a seven-pin universal
trailer connector is attached to a bracket on the hitch
platform.
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.
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