1996 GMC Safari Owner's Manual - Page 190

Parking on Hills 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's how to do it: 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. 1. Apply your regular brakes, but don't shift into PARK (P) yet. Turn your wheels into the curb when facing downhill and away from the curb when facing uphill. 2. Let up on the brake pedal. 3. Drive slowly until the trailer is clear of the chocks. 2. Have someone place chocks under the trailer wheels. 3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load. 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 the Maintenance Schedule for more on this. Things that are especially important in trailer operation are automatic transmission fluid (don't overfill), engine o i l , axle lubricant, belt, cooling system and brake adjustment. 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 these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. 4. Reapply the regular brakes. Then apply your parking brake, and shift to PARK (P). 5 . Release the regular brakes. 4-36