GMC 2007 Acadia Owner's Manual page 381

3. When the chocks are in place, release the
regular brakes until the chocks absorb
the load.
4. Reapply the regular brakes. Then apply your
parking brake and shift into PARK (P).
5. Release the regular brakes.
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal
down while you:
•
start your engine,
•
shift into a gear, and
•
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
Your vehicle will need service more often
when you're pulling a trailer. See Scheduled
Maintenance on page 502 for more information.
Things that are especially important in trailer
operation are automatic transmission fluid
(don't overfill), engine oil, axle lubricant, drive
belt, cooling system and brake system. Each of
these is covered in this manual, and the Index will
help you find them quickly. If you're trailering,
it's a good idea to review this information before
you start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
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