2004 Pontiac Sunfire Owner's Manual - Page 228
2004 Pontiac Sunfire Manual
Page 228 highlights
Maintenance When Trailer Towing Your vehicle will need service more often when you are pulling a trailer. See Part A: Scheduled Maintenance Services on page 6-4 for more on this. Things that are especially important in trailer operation are automatic transaxle fluid (don't overfill), engine oil, 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. Engine Cooling When Trailer Towing Your cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 5-24. Towing a Trailer (Manual Transaxle) Do not tow a trailer if your vehicle is equipped with a manual transaxle. 4-46