Kia Optima: Tires and wheels / Tire pressure

Kia Optima DL3 2019-2021 Owner's Manual / Maintenance / Tires and wheels / Tire pressure

Always observe the following:

Check tire pressure when the tires are cold. (After vehicle has been parked for at least three hours or hasn't been driven more than 1.6 km (1 mile) since startup.)
Check the pressure of your spare tire each time you check the pressure of other tires.
Never overload your vehicle. Be careful not to overload a vehicle luggage rack if your vehicle is equipped with one.
Warm tires normally exceed recommended cold tire pressures by 28 to 41 kPa (4 to 6 psi). Do not release air from warm tires to adjust the pressure or the tires will be underinflated.

WARNING - Tire Inflation

Overinflation or underinflation can reduce tire life, adversely affect vehicle handling, and lead to sudden tire failure. This could result in loss of vehicle control and potential injury.

Recommended cold tire inflation pressures

All tire pressures (including the spare) should be checked when the tires are cold. “Cold Tires” means the vehicle has not been driven for at least three hours or driven less than 1.6 km (1 mi ...

Checking tire inflation pressure

Check your tires once a month or more. Also, check the tire pressure of the spare tire. How to check Use a good quality gauge to check tire pressure. You can not tell if your tires are properly i ...

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