Kia Optima: Wheel Size Designation

Tire Size Designation

A tire’s sidewall is marked with a tire size designation. You will need this information when selecting replacement tires for your car. The following explains what the letters and numbers in the ...

Tire Speed Ratings

The chart below shows many of the different speed ratings currently being used for passenger car tires. The speed rating symbol is part of the tire size designation on the sidewall of the tire. Th ...

See also:

Highway driving
Tires Adjust the tire inflation pressures to specification. Low tire inflation pressures will result in overheating and possible failure of the tires. Avoid using worn or damaged tires which may r ...

Easy access function
With the shift lever in the P position, the system will move the driver's seat automatically as follows. Without smart key system - It will move the driver’s seat rearward when the igni ...

Trunk Lid
To open the trunk, insert the key into the lock and turn it clockwise until an audible “clickâ€� is heard. To close the trunk, use both hands to push the trunk lid down until the lock â ...