2003 Lincoln Navigator Owner Guide 1st Printing (Spanish) - Page 646

Driving Your vehicle is equipped with a heavy duty trailer tow wiring. An electrical connector is provided under the instrument panel for installing a customer-supplied electric brake controller. A Class I and IV connector is provided at the hitch. These connectors provide power to the trailer for taillamps, stop and turn lamps, back up lamps, battery charge, electric brakes (when a customer provided controller is installed) and ground. A kit containing a wiring harness/adapter and installation instructions to attach an electric brake controller may be obtained from any Ford or Lincoln/Mercury dealer (part number 2L1Z-14A348-AB). Before towing a trailer, make sure the trailer brakes (if equipped) and lamps are properly connected and functional. Refer to the brake controller instructions to check for trailer brake functionality. Rear axle ratio Maximum GCWR kg (lbs.) Trailer weight range (0 maximum) kg (lbs.) Engine 4x2 5.4L All 6577 (14500) 0-3901 (0-8600) Maximum frontal area of trailer is 5.6 square meters (60 square feet) Rear axle ratio Maximum GCWR kg (lbs.) Trailer weight range (0 maximum) kg (lbs.) Engine 4x4 5.4L All 6577 (14500) 0-3765 (0-8300) Maximum frontal area of trailer is 5.6 square meters (60 square feet) Do not exceed the maximum loads listed on the Safety Compliance Certification label. For load specification terms found on the label, refer to Vehicle loading in this chapter. Remember to figure in the tongue load of your loaded trailer when figuring the total weight. Towing trailers beyond the maximum recommended gross trailer weight exceeds the limit of the vehicle and could result in engine damage, transmission damage, structural damage, loss of control and personal injury. 255