How do you reset the alarm system for a 2002 explorer?

Answer 1

If the security light is blinking and the remote starter does not work, it will beep twice instead.

First use the panic button to set off the alarm, it will go off then stop by itself.

Next put the key in the driver door and lock and unlock twice then remove. On the controller lock and unlock the doors twice to three times, just back and forth locking and unlocking.

Next try the remote starter and it should start and its reset.

It is now back to normal.

A few things that may have gotten it to this point......someone tried to steal it, faulty remote, someone held the buttons down on the remote too long.

My son used my truck and gave it back with the alarm active, he had my keys in his back pocket and probably sat on it so the buttons were pressed and activated the alarm.

This only works with the original key, the secondary key used for valet parking will not work. Once the alarm is active only the original key will start the truck, the remote and valet key will not work either. This is not bypassable because the key, remote are connected to the vehicle computer with programming on the computer.