2012 Kia Optima Repair and Maintenance

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

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2012 Kia Optima Problems

Battery Weak Due to Inadiquate Alternator Output

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.

No Sound from Speakers

The navigation unit in the Kia Optima may suddenly stop playing audio from all speakers. This includes sound from CD players, radio, navigation, satellite radio, and telephone calls. All other features may still function properly.

This fault requires no parts replacement, and is a software glitch that can be rectified by a 'hard reset'.

To perform the hard reset, simply disconnect the vehicles negative battery terminal, wait 15 minutes, and reconnect the negative battery terminal.

Software Update Available Which May Correct Transmission Issues

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.

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2012 Kia Optima Questions

my kia has the push button start and will not start (1 answer)

I have a 2012 kia it has the push start button the brake is hard and when you push the start button it will go threw its steps but will not start it doesn't even turn over

My a/c stopped working. And it doesn't blow any air, not even hot air. (1 answer)

I was out and parked my car, turned off the a/c. And right there and then it smelled like something burned. After that I tried to turn it back on and nothing happen. It doesn't even blow hot air, it does nothing. What do you recommend? What should I look for?

Noise coming from behind fuze box. Especially on rough roads. (1 answer)

Sounds like a loose bolt vibrating against metal. I tightened two screws behind the take out side panel but still making noise. Thank you

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