2008 Mercury Mountaineer Owner Guide 1st Printing - Page 151

Locks and Security 8. Turn the ignition from the 1 (OFF/LOCK) position to the 3 (ON) position. Keep the ignition in the 3 (ON) position for at least three seconds, but not more than 10 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 the theft indicator light will illuminate for three seconds and then go out. If the key was not successfully programmed, it will not start your vehicle's engine and the theft indicator light will flash on and off, and you may repeat Steps 1 through 5. 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. 151 2008 Mountaineer (mnt) Owners Guide (post-2002-fmt) USA (fus)