2012 Kia Optima Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2012 Kia Optima

Reprogramming the transmission control module with the latest Kia transmission software may fix abnormalities in the automatic transmission and erroneous transmission-related Check Engine Light illumination. Software updates are commonly most effective on newer vehicles. Higher mileage vehicles may exhibit a similar symptom caused by a component failure. However, whenever major transmission repairs are performed the transmission software should be checked and updated as necessary.

After the vehicle has been operated with electrical loads (lights, air conditioning), a weak alternator can cause starting difficulties. In some cases, the original alternator could not sufficiently charge the battery; Kia released a new alternator which can correct this concern.

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My Sirius Radio goes out with a sharp right, back on with a sharp turn left, or does not acquire a signal at all. what is causing this? Paying for membership that i am having problems using. Radio works.

I just had my 45k service done and the price without the spark plug change was $160 which is close the estimate posted here. The service advisor has quoted me a price of $475 plus tax to replace the spark plugs - saying it needs other things in the "tune up" package that are not listed ...

I am not sure if I should replace the radio or the amp or a fuse. The radio lights up and looks as if it functions properly however, no sound at all. Advice?

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