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 ...

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Manual Transaxle Operation
The manual transaxle has five forward gears. Press the clutch pedal down fully while shifting, then release it slowly. A special safety feature prevents inadvertent shifting from 5 (Fifth) to R ( ...

Specifications
Specification Smart Key Unit Items Specification Rated voltage DC 12V Operating voltage DC 9 ~ 16V Operat ...

Air Intake Control Switch
This is used to select fresh outside air or recirculation of the inside air. WARNING Continued climate control system operation in the recirculated air position may allow humidity to incr ...