Kia Optima: Tires and wheels / Tire replacement

Kia Optima DL3 2019-2025 Owner's Manual / Maintenance / Tires and wheels / Tire replacement

If the tire is worn evenly, a tread wear Indicator (A) will appear as a solid band across the tread. This shows there is less than 1.6 mm (1/16 inch) of tread left on the tire. Replace the tire when this happens.

Do not wait for the band to appear across the entire tread before replacing the tire.

The ABS works by comparing the speed of the wheels. The tire size affects wheel speed. When replacing tires, all 4 tires must use the same size originally supplied with the vehicle. Using tires of a different size can cause the ABS (Anti-lock Brake System) and ESC (Electronic Stability Control) to work irregularly.

✽ NOTICE

In order to maintain optimal driving performance, we recommend replacing tires with the same specification and type as originally installed in your vehicle. If not, driving performance could be altered.
When replacing tires (or wheels), it is recommended to replace the two front or two rear tires (or wheels) as a pair. Replacing just one tire can seriously affect your vehicle's handling.

Wheel alignment and tire balance

The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance. In most cases, you will not need to have your wheels al ...

Wheel replacement

When replacing the metal wheels for any reason, make sure the new wheels are equivalent to the original factory units in diameter, rim width and offset. A wheel that is not the correct size may adv ...

Other information:

Kia Optima DL3 2019-2025 Owner's Manual: If the engine will not start

If engine doesn't turn over or turns over slowly 1. If your vehicle has an automatic transmission, be sure the shift lever is in N (Neutral) or P (Park) and the emergency brake is set. 2. Check the battery connections to be sure they are clean and tight. 3. Turn on the interior light. If the li ...

Kia Optima DL3 2019-2025 Owner's Manual: Engine oil

Checking the engine oil level ■ THETA 2.4L - GDI 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 minutes (about 5 minutes) for the oil to return to the oil pan. 4. Pull the dipstic ...