A key is needed to enter, lock, and unlock many Mercury Sable cars. A key is also needed to start the engine.
look in the glove box
I have read via Google that they do, however I can personally attest that mine does not.
I believe that wire is for the key is in the ignition warning buzzer! Not 100%, but 90%.
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.
Your Ford/Mercury dealer can get the code. See "Related Questions" below for instructions on changing the lock cylinder
Can't you just use the door key?
Go to ford dealer with your vin number and they can cut you a key. or call a locksmith.
In 1999 it may or may not have one. If it has a thick black head with the hole in the head of the key being offset, then it is probably a chip key. If the hole is in the center top of the key or completely metal then it is not a chip key.
Sometimes it is correct but not all of the time. Its worth a try.
Might e be time for a batteryMight have lost its programmingSee "Related Questions" below for more about both
look under the dash on the drivers side. there should be a little plaque that says the code for your car.
call a lock smith