1997 Lincoln Town Car Owner's Manual - Page 71

After approximately 10 minutes, the defroster will turn off. If the window or mirrors are still not clear, turn the defroster on again. The defroster will turn off when the ignition key is turned to the OFF or START position. The heating elements are bonded to the inside of the rear window. Do not use sharp objects to scrape the inside of the rear window or use abrasive cleaners to clean it. Doing so could damage the heating elements. 3-Way Steering Assist Switch (If Equipped) Your Town Car is equipped with a speed sensitive steering system that changes steering effort with vehicle speed. As the vehicle speed increases, this system automatically increases the steering effort (i.e., it takes more force to move the steering wheel) to provide better road feel. At lower speeds the steering effort is decreased, making it easier to perform turns or other slow speed maneuvers such as parking. 3-way steering assist switch 67