Trailer towing, Trailer towing -47, Driving and operating 9-47 – GMC 2012 Acadia User Manual

Page 301

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GMC Acadia/Acadia Denali Owner Manual - 2012

Driving and Operating

9-47

3. When the wheel chocks are in

place, release the brake pedal
until the chocks absorb the load.

4. Reapply the brake pedal. Then

apply the parking brake and shift
into P (Park).

5. Release the brake pedal.

Leaving After Parking on a Hill

1. Apply and hold the brake pedal

while you:

1.1. Start the engine.

1.2. Shift into a gear.

1.3. 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 pulling a trailer. See
Maintenance Schedule on
page 11‑2
.
Things that are
especially important in trailer
operation are automatic
transmission fluid, engine oil,
axle lubricant, belts, cooling
system and brake system. Inspect
these before and during the trip.

Check periodically to see that all
hitch nuts and bolts are tight.

Engine Cooling When Trailer
Towing

The cooling system may temporarily
overheat during severe operating
conditions. See Engine Overheating
on page 10‑18
.

Trailer Towing

Three important considerations
have to do with weight:

.

The weight of the trailer

.

The weight of the trailer tongue

.

The total weight on the vehicle's
tires

Weight of the Trailer

How heavy can a trailer safely be?

Speed, altitude, road grades,
outside temperature, special
equipment, and the amount of
tongue weight the vehicle can carry
must be considered. See “Weight of
the Trailer Tongue” later in this
section for more information.

Maximum trailer weight is
calculated assuming only the driver
is in the tow vehicle and it has all
the required trailering equipment.
The weight of additional optional
equipment, passengers and cargo in
the tow vehicle must be subtracted
from the maximum trailer weight.

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