One problem related to anti-theft controller has been reported for the 2003 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2003 Kia Motor Optima based on all problems reported for the 2003 Optima.
Locking system failure causing all doors to lock on the vehicle with no means to get out of the vehicle. Can not get out by the windows and the motor will not shut down for quit some time. We believe it also triggered or malfunctioned the anti-theft causing it to ingage which would prevent you exiting the vehicle as well.