2013 Lincoln Navigator Owner Manual Printing 1 - Page 244
2013 Lincoln Navigator Manual
Page 244 highlights
244 Towing 5. With the ignition on and all doors closed, let the vehicle with trailer sit for a few minutes to let the air suspension re-settle. 6. With the trailer connected, but without weight distributing bars connected, measure the height of the top of the front wheel opening on the fender a second time, this is H2. 7. Install and adjust the tension in the weight distributing bars so that the height of the front fender is approximately halfway between H1 and H2. 8. With the ignition on and all doors closed, let the vehicle, now with trailer and weight distributing bars connected, sit for a few minutes to let the air suspension re-settle. 9. Re-measure the height of the top of the front wheel opening, repeating Steps 7-9 as necessary to obtain a fender height approximately halfway between H1 and H2 after the air suspension has settled. 10. Check that the trailer is level. If not level, remove the trailer, adjust the ball height accordingly, and repeat Steps 4-10. Safety Chains Note: Do not attach safety chains to the bumper. 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 enough slack for turning tight corners. Do not allow the chains to drag on the ground. Trailer Brakes 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. 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. The braking system of the tow vehicle is rated for operation at the GVWR not GCWR. Separate functioning brake systems are required for safe control of towed vehicles and trailers weighing more than 1500 pounds (680 kilograms) when loaded. 2013 Navigator (nav) Owners Guide gf, 1st Printing USA (fus)