FORD 2010 Transit Connect v.3 - Manual (Page 70)

9. After three seconds but within twenty seconds of removing the
previously programmed coded key, insert the unprogrammed key
(new/valet key) into the ignition.
10. Turn the ignition from the O (off) position to the II (on) position.
Keep the ignition in the II (on) position for at least one second, but no
more than 10 seconds.
11. Your new, unprogrammed key is now programmed.
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, or stay
on for more than three seconds. If failure repeats, bring your vehicle to
your authorized dealer to have the new key(s) programmed.
To program additional new unprogrammed key(s), repeat this procedure
from Step 1 for each additional key.
Locks and Security
70
2010 Transit Connect (tst)
Owners Guide, 3rd Printing
USA (fus)