Table 1 shows eleven common electrical system related problems of the 2004 Kia Motor Optima. The number one most common problem is related to the electrical system (31 problems). The second most common problem is related to the alternator/generator/regulator (two problems).
Unable to open passenger door due to door lock actuator stopped working. Unsafe to drive. Read details...
First my passenger side door would not unlock (cannot get the door open at all) - my passengers have to crawl in through the window to sit in passenger seat and my 78 year old grandma can't do that so she has to sit in the back. Read details...
I was commuting. I gave my car regular oil changes and tune ups. Then the engine coils went out. The car would not go over forty. Replaced that. Heard funny noises coming from the engine. The car was at 70k at this point. The manufacturers warranty said to replace the timing belt at 110k. Read details...