Vsa Warning Light On problems of the 2012 Kia Motor Optima

Issue started 2 months ago. Noticed that vehicle acceleration is sluggish. Sometimes I have to take foot off the acceleration pedal then depress it again in order for vehicle to accelerate. Acceleration is unreliable and dangerous. Electronic stability sensor also started lighting up and cruise control became inoperable. Also noticed that my tail lights lit up on its own (and did not turn off) while vehicle is parked and fob not near vehicle, draining the battery. Police came by in the middle of the night to report that my tail lights were on. Tail light did not turn off when pressing the fob unlock/lock button. Had to restart the engine, drive around the block then turn off engine before the tail lights came off. . . But it turned back on again on its own that same night (in the middle of the night) and had to repeat the process. My battery was drained and had to replace it 3 days ago. I thought it was a battery problem (and was informed by dealer that it was probably a battery related issue) but problem persisted. Read reviews and this seems to be a running complaint with issues on brake pedal stopper or brake sensor stopper. Will bring vehicle to dealer in the morning.

My electronic stability control light on dash came on and remains on. I took to martin kia in newark delaware for diagnostic and they said the codes were c1259 and c1260 and that I need to have clock spring assembly, steering angle sensor and the steering column assembly replaced because it looked like my car had been in an accident. (I did strike a small deer, but damage was cosmetic to left front fender and did not affect steering or drivability, and was repaired in a professional body shop). The esc did not come on until months after my accident. Dealer would not certify that the vehicle is safe to drive with this condition, nor did they offer another less expensive repair such as just replacing sensors. They wanted an estimated $1370 to hold my safety hostage. Since the light has been on, I have experienced a few episodes of instability when driving in inclement weather. I now leave esc off when weather is bad.

I was accelerating vehicle an stability light came on and car would not accellerate. When I tried a loud noise came from the front. Dealer says nothing was wrong.