2008 Pontiac Grand Prix Owner's Manual - Page 270

When You Are Ready to Leave After Parking on a Hill 1. Apply the regular brakes and hold the pedal down while you: Maintenance When Trailer Towing The vehicle will need service more often when it pulls a trailer. See Scheduled Maintenance on page 6-4 for more information. Things that are especially important in trailer operation are automatic transmission fluid, which should not be overfilled, engine oil, drive belts, cooling, and brake systems. Each of these is covered in this manual, and the Index will help locate them quickly. If trailering, it is a good idea to review this information before starting on a trip. Check periodically to see that all hitch nuts and bolts are tight. • Start the engine • Shift into a gear • 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. Engine Cooling When Trailer Towing The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 5-27. 4-36