1995 GMC Sonoma Owner's Manual - Page 183

A CAUTION: It can be dangerous to get out of your vehicle if the shift lever is set. not fully in PARK (P) with the parking brake firmly Your vehicle can roll. If you have left engine running, the vehicle can move the o suddenly. You or others could beinjured. T be sure your vehicle won't move, even when you're on fairly level ground, use the steps that follow. If you have four-wheel drive with a manual transfercase shift NEUTRAL (N), your vehicle lever and your transfer case is in PARK (P). So, be will be free to roll, evenif your shift lever is in sure the transfer case isin a drive gear not in NEUTRAL (N). When You Are Ready to Leave After Parking on Hill a 1. Apply your regular brakesand 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 the Maintenance Schedule for more on Things that are especially this. important in trailer operation are automatic transmission fluid (don't overfill), engine oil, axlelubricant, 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 toreview these sections before you start your trip. Check periodically to see that all hitch nuts and bolts are tight. Trailer Lighting Systems Wiring See "Trailer Wiring Harness" in the Index. 4-49