Kia Optima: Checking tire inflation pressureCheck your tires once a month or more.
Also, check the tire pressure of the spare tire.
How to check
Use a good quality gage to check tire pressure.You can not tell if your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they're underinflated.
Check the tire's inflation pressure when the tires are cold. - "Cold" means your vehicle has been sitting for at least three hours or driven no more than 1.6 km (1 mile).
Remove the valve cap from the tire valve stem. Press the tire gage firmly onto the valve to get a pressure measurement. If the cold tire inflation pressure matches the recommended pressure on the tire and loading information label, no further adjustment is necessary. If the pressure is low, add air until you reach the recommended amount.
If you overfill the tire, release air by pushing on the metal stem in the center of the tire valve. Recheck the tire pressure with the tire gage. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping out dirt and moisture.
WARNING
Recommended cold tire inflation
pressures
Tire rotationSafety Belt Warning Chime
If the driver's lap/shoulder belt is not fastened when the key is turned ON or
if it is unfastened after the key is turned ON, safety belt warning chime sounds
for approximately 6 seconds. ...
Removal
1.
Release the residual pressure in fuel line (Refer
to “Release Residual Pressure in Fuel Line” in this group).
2.
Remove the fuel pump service cover (A) in ...
With central door lock switch (if equipped)
Driver's door
Passenger’s door (if equipped)
Operate by pressing the central door lock switch.
Press the switch to the "Lock" position (1), all vehicle doors will lock.
Pre ...