See also:

Tire pressure monitoring system (TPMS)
(1) TPMS malfunction indicator (2) Low tire pressure telltale Each tire, including the spare (if provided), should be checked monthly when cold and inflated to the inflation pressure recommende ...

Engine oil and oil filter
Checking the engine oil level 1. Be sure the vehicle is on level ground. 2. Start the engine and allow it to reach normal operating temperature. 3. Turn the engine off and wait for a few min ...

By the numbers
The Kia Optima is a five-seat mid-size segment passenger car that has an interior that the EPA will probably consider a full size interior. Longer, lower and wider than the vehicle it replaces, it ...