Mercury Mariner 2008, Owner'S Manual

Page: 94 / 304

5. Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position.
Keep the ignition in the 3 (RUN) position for at least three seconds, but
no more than 10 seconds.
6. Turn the ignition to the 1 (LOCK) position and remove the second
previously programmed
coded key from the ignition.
7. Within twenty seconds of turning the ignition to the 1 (LOCK)
position and removing the previously programmed
coded key,
insert the
new unprogrammed key (new key/valet key) into the ignition.
8. Turn the ignition from the 1 (LOCK) position to the 3 (RUN) position.
Keep the ignition in the 3 (RUN) position for at least six seconds.
9. Remove the newly programmed coded key from the ignition.
If the key has been successfully programmed it will start the vehicle’s
engine and will operate the remote entry system (if the new key is an
Integrated Keyhead Transmitter). The theft indicator light will illuminate
for three seconds and then go out to indicate successful programming.
If the key was not successfully programmed, it will not start your
vehicle’s engine and/or will not operate the remote entry features. The
theft indicator light may flash on and off. Wait 20 seconds and you may
repeat Steps 1 through 8. If failure repeats, bring your vehicle to your
authorized dealer to have the new key(s) programmed.
To program additional new unprogrammed key(s), wait twenty seconds
and then repeat this procedure from Step 1.
2008 Mariner (mrn)
Owners Guide (post-2002-fmt)
USA
(fus)
Locks and Security
94