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You can disarm your 1997 Mercury Cougar alarm system by removing the alarm system fuse. The alarm system fuse can be found in the fuse box.
To disable a factory installed alarm on a 1999 Mercury Cougar, place the key in the ignition. Turn the key only halfway and let it sit in that position for 10 minutes before starting the vehicle.
Plug in your seatbelt.
Why, are you going to steal one?
put the key in the door and turn it to unlock
you have to unlock the passenger door from the outside with the key
Insert your key into your door then turn and hold it for about 5 seconds. That should do it!
it could be something wrong with the ignition switch, and or alarm
Had the same problem. You can reset it by unlocking either door with the key.
For a 99 it is behind the right rear quarter trim panel.
to reset the alarm system for a Mercury Sable when the alarm is causing the car not to start, place the key in the ignition. Turn the key only about halfway and leave it in this spot for 10 minutes before trying to start the car.
Aliens!!!!!!!