Chevrolet Colorado 2024 Owner's Manual page 230

Cross the safety chains under the tongue of
the trailer to help prevent the tongue from
contacting the road if it becomes separated
from the hitch. Always leave just enough
slack so the combination can turn. Never
allow safety chains to drag on the ground.
Trailer Brakes
Loaded trailers over 900 kg (2,000 lb) must
be equipped with brake systems and with
brakes for each axle. Trailer braking
equipment conforming to Canadian
Standards Association (CSA) requirement
CAN3-D313, or its equivalent, is
recommended.
State or local regulations may require
trailers to have their own braking system if
the loaded weight of the trailer exceeds
certain minimums that can vary from state
to state. Read and follow the instructions for
the trailer brakes so they are installed,
adjusted, and maintained properly.
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Warning
Never attempt to tamper with the
hydraulic brake system for your trailer
brakes. Do not connect a trailer's
hydraulic brake system directly to your
vehicle's hydraulic brake system. If you
do, both the vehicle antilock brakes and
the trailer brakes may not function,
which could result in a crash.
Trailer Wiring Harness
If the vehicle is not equipped with a trailer
connector on the rear bumper, a seven-wire
trailering harness is tied to the vehicles
frame. The harness requires the installation
of a trailer connector, which is available
through your dealer.
Use only a round, seven-wire connector with
flat blade terminals meeting SAE J2863
specifications for proper electrical
connectivity.
The seven-wire harness contains the
following trailer circuits:
. Yellow: Left stop/turn signal
.
Green: Right stop/turn signal
Driving and Operating
.
Brown: Tail lamps/parking lamps
. White: Ground
. Gray: Back-up lamps
. Orange: Battery feed
. Blue: Trailer brake
If equipped, the trailer wiring harness, with
a seven-pin connector and a four-pin
connector, is mounted on the vehicle's rear
bumper.
The trailer connectors contain the following
circuits.
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