2004 Buick Century Owner's Manual - Page 210

Turn Signals When Towing a Trailer When towing a trailer, the vehicle may need a different turn signal flasher and/or extra wiring. Check with your dealer. The arrows on the instrument panel will flash whenever signaling a turn or lane change. Properly hooked up, the trailer lamps will also flash, telling other drivers you are about to turn, change lanes or stop. When towing a trailer, the arrows on the instrument panel will flash for turns even if the bulbs on the trailer are burned out. You may think drivers behind you are seeing your signal when they are not. It is important to check occasionally to be sure the trailer bulbs are still working. Parking on Hills {CAUTION: 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 the rig ever has to be parked on a hill, here is how to do it: 1. Apply the regular brakes, but do not shift into PARK (P) yet. 2. Have someone place chocks under the trailer's wheels. 3. When the wheel chocks are in place, release the regular brakes until the chocks absorb the load. 4. Reapply the regular brakes. Then apply the parking brake, and shift to PARK (P). 5. Release the regular brakes. Driving On Grades Reduce speed and shift to a lower gear before starting down a long hill or steep downgrade. If the vehicle is not shifted down, the brakes might have to be used so much that they would get hot and no longer work well. On a long uphill grade, shift down and reduce the vehicle's speed to around 45 mph (70 km/h) to reduce the possibility of engine and transaxle overheating. If towing a trailer, you may want to drive in THIRD (3) instead of AUTOMATIC OVERDRIVE (X). Shift to a lower gear as needed. 4-44