1994 GMC Suburban Owner's Manual - Page 203

Parking on Hills You really should not park your vehicle, with a trailer attached, on a hill. If something goes wrong, your rig could startto move. People can be injured, and both your vehicle and the trailercan be damaged. park your rig on a hill, here's how to do it: But if you ever have to I . Apply your regular brakes, but don't shift into " P ' (Park) yet, or in gear for a manual transmission. 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. Re-apply the regular brakes.Then apply your parking brake, and then shift to "P"(Park), or (Reverse) fora manual transmission. " R 7 5. If you have a four-wheel-drive vehicle, be sure the transfer case in a is drive gear-not in (Neutral). " N 7 6. Release the regular brakes. I . , , , ,, . .I .. . ...I . . . . ... .. 4-43