1993 Buick Park Avenue Owner's Manual - Page 208

the trailer lights will also flash,telling other drivers you're about toturn, change lanes or stop. When towing a trailer, the green arrows on your instrument panel will flash for turns even if the bulbs on the trailer are burned out. Thus, you may think drivers behind you are seeing your signal when they are not. It's important to check occasionally tobe sure the trailer bulbs are still working. Your vehicle has bulb warning lights. When you plug trailer lights into your vehicle's lighting system, its bulb warning lights may not let you know if one of your lights goes out. So, when you have trailer lights plugged in, be sure to check your vehicle and trailer lights from time to time to be sure they're-allworking. Once you disconnect the trailer lights, the bulb warning lights again can tell you if one of your vehicle lights is out. On a long uphill grade, shift down to "D or 3" (Drive) and reduce your speed to around 45 mph (70 km/h) to reduce the possibility of engine and transaxle overheating. Parking on Hills 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 you ever have to park your rig on a hill, here's how to do it: 1. Apply your regular brakes, but don't shift into "F'" (Park) yet. 2. Have someone place chocks under the trailer wheels. Driving On Grades Reduce speed and shift to a lower gear before you start down a longor steep downgrade. If you don't shift down, you might have to use your brakes so much that they would get hot and no longer work well. 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 your parking brake, and then shift to " P ' (Park). 5. Release the regular brakes.