1996 Mercury Sable Owner's Manual - Page 168

If the key has been coded, the anti-theft indicator will come on for two seconds. The key can then be used to start the vehicle. Repeat until all spare keys have been coded. If the key coding failed, the anti-theft indicator will flash and the vehicle cannot be started with the new key. Coding failure can be caused by the following: u The new key was not inserted within 15 seconds, or u 16 keys have already been programmed, or u The key does not have an electronic code. Try the coding procedure again. If it fails again, see your dealer or a qualified technician. Windows Using the Power Windows Each door has a power control that opens and closes the window on that door. The driver's door has a master control panel that operates all four windows. The power windows only operate when the ignition key is in the ON or ACC position or when the ignition has been turned from the ON to the OFF position and/or the key has been removed and no front doors on the vehicle have been opened. The power window controls are illuminated. RWARNING Do not let children play with the power windows. They may seriously hurt themselves. 141