Trailer Towing - GMC XT5 2023 Owner's Manual

326 Driving and Operating
5. Release the brake pedal.
Leaving After Parking on
a Hill
1. Apply and hold the brake
pedal:
Start the engine.
Shift into the
desired gear.
Release the parking
brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer
is clear of the chocks.
4. Stop and have someone
pick up and store the
chocks.
Maintenance When Trailer
Towing
The vehicle needs service
more often when used to tow
trailers. See Maintenance
Schedule 0 429. It is especially
important to check the engine
oil, axle lubricant, belts, cooling
system, and brake system
before and during each trip.
Check periodically that all nuts
and bolts on the trailer hitch
are tight.
Engine Cooling When

Trailer Towing

The cooling system may
temporarily overheat during
severe operating conditions.
See Engine Overheating
0 356.
Trailer Towing
Caution
Towing a trailer improperly
can damage the vehicle and
result in costly repairs not
covered by the vehicle
warranty. To tow a trailer
correctly, follow the
directions in this section and
see your dealer for
important information about
towing a trailer with the
vehicle.
Trailer Weight
Warning
Never exceed the towing
capacity for your vehicle.
Safe trailering requires
monitoring the weight, speed,
altitude, road grades, outside
temperature, dimensions of
the front of the trailer, and
how frequently the vehicle is
used to tow a trailer.
Trailer Weight Ratings
When towing a trailer, the
combined weight of the
vehicle, vehicle contents,
trailer, and trailer contents
must be below all of the
maximum weight ratings for
the vehicle including:
Gross Combined Weight
Rating (GCWR)
Gross Vehicle Weight
Rating (GVWR)