Kia Optima: Underdrive Brake Control Solenoid Valve(UD/B_VFS). Description and OperationDescription
Underdrive brake control solenoid valve(UD/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure inside the underdrive brake.

Removal
Underdrive Brake Control Solenoid Valve(UD/B_VFS). SpecificationsCenter High-Mounted Stoplight Bulb Replacement
1. Remove the cover and turn the bulb socket counterclockwise and remove it from
the housing.
2. Push the bulb in, then rotate it one- quarter turn counterclockwise and remove
the bulb from the ...
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 ( ...
Changing tires
1. Park on a level surface and apply
the parking brake firmly.
2. Shift the shift lever into R
(Reverse) for manual transaxle or
P (Park) for automatic transaxle.
3. Activate the hazard wa ...