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The center brake light, sometimes referred to as the third brake light or stoplight, on your 2004 Kia Optima lights up when you hit the brake pedal and helps prevent you from being rear ended by the cars behind you. See how to change the center brake light (CBL) on your Kia Optima in the video above. Be careful not to touch the bulb directly with your fingers when you replace the center brake light bulb on your Optima, touching the bulb causes the it to burn out quicker.
A burnt out center brake light bulb in your Optima is an excuse for a police officer to pull you over. Check your bulbs frequently and change burnt bulbs promptly.
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2004 Kia Optima EX 2.7L V6
White light when you back up - yup, they burn out and you can replace them with bright LEDs2004 Kia Optima EX 2.7L V6
Minor transmission fluid leaks can often be fixed with the right sealant - see how to do this2004 Kia Optima EX 2.7L V6
If your battery has green or white cruddy deposits, it is probably not getting enough juice from and will likely wear out sooner2004 Kia Optima EX 2.7L V6
Many cars will burn or leak a little bit of oil. Over time, this adds up and you might need to add some - learn how to here!2004 Kia Optima EX 2.7L V6
Harsh downshifts? Slipping gears? You might be low on transmission fluid2004 Kia Optima EX 2.7L V6