1999 Cadillac DeVille Owner's Manual - Page 234

yellowblue Safety Chains You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer so that the tongue will not drop to the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the hitch manufacturer or by the trailer manufacturer. Follow the manufacturer's recommendation for attaching safety chains and do not attach them to the bumper. Always leave just enough slack so you can turn with your rig. And, never allow safety chains to drag on the ground. Trailer Wiring Harness If your vehicle is equipped with the 3,000-lb. (1 360 kg) trailer towing package option, your vehicle comes with a pouch containing a trailer towing jumper harness and a trailer stub. To attach the jumper harness, remove the trunk trim near the left rear wheel well and connect it to the main body harness connector which is taped down. The trailer stub will attach to the trailer and connect to the jumper harness. These trailer-wiring harness color codes should be followed when connecting it to your trailer: D BLACK: Direct trailer ground for trailer lamps. D BROWN: Parking lamps. D YELLOW: Left turn and stoplamps. D GREEN: Right turn and stoplamps. D BLUE: Auxiliary circuit. Trailer Brakes Because you have anti-lock brakes, don't try to tap into your vehicle's hydraulic brake system. If you do, both brake systems won't work well, or at all. If you tow more than 1,000 lbs. (450 kg), use trailer brakes. Be sure to follow the instructions that come with the trailer or from the brake manufacturer. Be sure to read and follow the instructions for the trailer brakes so you'll be able to maintain them properly. Driving with a Trailer Towing a trailer requires a certain amount of experience. Before setting out for the open road, you'll want to get to know your rig. Acquaint yourself with the feel of handling and braking with the added weight of the trailer. And always keep in mind that the vehicle you are driving is now a good deal longer and not nearly as responsive as your vehicle is by itself. 4-36