Mercury 2002 Cougar Owner's Manual page 77

Locks and Security
1. Insert the first previously
programmed coded key into the
ignition switch and turn to position
No. 3.
2. Turn the key back to position No.
1 and remove from the ignition
within 5 seconds.
3. Insert the second previously
programmed coded key into the
ignition switch and turn to position
No. 3 within 3–5 seconds.
4. Turn the key back to position No. 1 and remove from the ignition
within 5 seconds, the key coding mode is now activated.
5. If an uncoded key is now inserted in the ignition switch and turned to
position No. 3 within 10 seconds, this key is coded to the system.
If coding is not completed correctly, indicator light flashes after the
ignition is switched on with the newly coded key. Repeat the coding
process. This process can be repeated after waiting 20 seconds.
If failure repeats, bring your vehicle to your dealership to have the new
spare key(s) programmed.
ANTI-THEFT SYSTEM (IF EQUIPPED)
When armed, the anti-theft system will help prevent your vehicle from
unauthorized entry.
If there is any potential perimeter anti-theft problem with your vehicle,
ensure ALL remote entry transmitters are brought to the dealership,
to aid in troubleshooting.
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