2011 Mercury Grand Marquis Owner Guide 1st Printing - Page 169

Tires, Wheels and Loading Safety chains Always connect the trailer's safety chains to the frame or hook retainers of the vehicle hitch. To connect the trailer's safety chains, cross the chains under the trailer tongue and allow slack for turning corners. If you use a rental trailer, follow the instructions that the rental agency gives to you. Do not attach safety chains to the bumper. Trailer brakes Electric brakes and manual, automatic or surge-type trailer brakes are safe if installed properly and adjusted to the manufacturer's specifications. The trailer brakes must meet local and Federal regulations. WARNING: Do not connect a trailer's hydraulic brake system directly to your vehicle's brake system. Your vehicle may not have enough braking power and your chances of having a collision greatly increase. The braking system of the tow vehicle is rated for operation at the GVWR not GCWR. Trailer lamps Trailer lamps are required on most towed vehicles. Make sure all running lights, brake lights, turn signals and hazard lights are working. Contact your authorized dealer or trailer rental agency for proper instructions and equipment for hooking-up trailer lamps. Driving while you tow When towing a trailer: • Do not drive faster than 70 mph (113 km/h) during the first 500 miles (800 km) of trailer towing and don't make full-throttle starts. • Turn off the speed control. The speed control may shut off automatically when you are towing on long, steep grades. • Use a lower gear to eliminate excessive shifting and assist in transmission cooling. For additional information, refer to Automatic transmission operation in the Driving chapter. • Allow more distance for stopping with a trailer attached; anticipate stops and brake gradually. 169 2011 Crown Victoria (cro) Owners Guide, 1st Printing USA (fus)