Kia Optima: Applying the parking brake
Foot type
To engage the parking brake, first apply the foot brake and then depress the parking brake pedal down as far as possible.

Hand type
To engage the parking brake, first apply the foot brake and then pull up the parking brake lever as far as possible.
In addition it is recommended that when parking the vehicle on a incline, the shift lever should be in a low gear on manual transaxle vehicles or in the P (Park) position on automatic transaxle vehicles.
CAUTION
Parking brake
Releasing the parking brakePeriodic inspection
All seat belts should be inspected periodically for wear or damage of any kind.
Any damaged parts should be replaced as soon as possible. ...
Fuel Pressure Test
1.
Release the residual pressure in fuel line (Refer
to “Release Residual Pressure in Fuel Line” in this group).
...
Replacement
1.
Remove the front wheel & tire.
Tightening torque:88.3
~ 107.9N.m(9.0 ~ 11.0kgf.m, 65.1 ~ 79.6lb-ft)
...