Towing and Accessories Note: Always remove the ball mount before 1. Remove the dust cover from the hitch installing or removing the hitch receiver from housing. the vehicle (see Attaching and Removing the Ball Mount on page 94). Warning: You must use the Model X trailer hitch when towing a trailer. Never attempt to attach a different type of trailer hitch. Note: Always attach safety chains when towing. Cross the chains under the trailer tongue and attach to the trailer eyelets to ensure the security of the trailer load. To install the trailer hitch receiver: Note: Newer versions of Model X have two push clips that secure the dust cover to the vehicle. To open, use a sharp object, such as a flat screwdriver, to carefully pry the clips open. Remove the dust cover. 2. Insert the key into the locking cylinder on the hitch, and turn the cylinder so the top of the key is aligned with the “unlocked” position. 92 Model X Owner's Manual