2008 GMC Acadia Owner's Manual - Page 312

Parking on Hills When You Are Ready to Leave After Parking on a Hill 1. Apply your regular brakes and hold the pedal down while you: {CAUTION: You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could start to move. People can be injured, and both your vehicle and the trailer can be damaged. But if you ever have to park your rig on a hill, here is how to do it: 1. Apply your regular brakes, but do not shift into PARK (P). When parking uphill, turn your wheels away from the curb. When parking downhill, turn your wheels into the curb. 2. Have someone place chocks behind the trailer wheels. 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. 4-40 • 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 are pulling a trailer. See Scheduled Maintenance on page 6-4 for more information. Things that are especially important in trailer operation are automatic transmission fluid (do not 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 are trailering, it is a good idea to review this information before you start your trip. Check periodically to see that all hitch nuts and bolts are tight.