LTD II, Cougar, Fairmont, Zephyr & Lincoln Continental
Disconnect battery ground cable. Reach under instrument panel and press and release button on switch and pull knob with shaft from switch.
NOTE:
On Fairmont and Zephyr with air conditioning, gain access to release button by disconnecting left duct from register connector, loosening two nuts retaining register to shelf, and removing connector from register.
Remove bezel nut from switch. Detach switch from panel. Lower switch, disconnect wiring and remove switch. To install, reverse removal procedure.