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Check your radiator fans. It sounds like one or both fans are not working. When you are driving you get airflow over the radiator and A/C...
Have you checked the engine oil level?
Check the position of the smart key switch where the steering column meets the dash panel. If that doesn't fix it you might have gotten a bad fob...
I had this problem and traced it to one of the radiator fan motors. I replaced the radiator fan assembly and the problem went away.
Was the NAPA battery the same size as your Optima? If so, it looks like your car got converted from JIS (thinner) to SAE (fatter) posts. You...
The icon indicates that you have one or more doors or the hatch is open. It does not tell you which one is open. Sounds like you might have a...
As JC91006 said, I'd replace the bulbs first. If you didn't notice that both bulbs were out you probably didn't notice when the first one burned...
I replaced my 9 year old Optima with the NAPA battery in January 2021. The battery was in stock at my local NAPA store and after my AAA discount...
Costco will sell the sensors for about $45 each and install them for $15 each. If you're buying new tires from them at the same time the install...
Is your 12v battery dead? If that is the problem it would be better to use jumper cables, a jump pack, or a battery charger to apply 12 volts to...
Sounds like you need to check the multimeter. I know that the car is not 100% accurate, but .65 volts is a pretty big swing on a 12v battery....
It doesn't really matter when you add air, but is does matter when you check it. If you don't have an tire inflator at home, add air to about 8...
First, 12.2 is low for a 12V battery. A fully charged 12V will be in the 12.7-12.9V range. However, this isn't causing your issue. The engine...
You need a new tire immediately. I'd drive it to the tire store if I didn't have to go more than a few miles on local roads at low speed, but no...
If your headlights don't work you have a problem with the 12V system in the car. The 12V battery will allow the headlights to turn on regardless...
