Kia Optima Hybrid Owner's Manual Quiz
Automatic Transmission

Underdrive Brake Control Solenoid Valve (UD/B_VFS) Description and Operation

In this manual: Automatic Transmission
General Information — 4Engine Mechanical System — 50Engine Electrical System — 20Emission Control System — 30Engine Control System/Fuel System — 84Automatic Transmission — 98Drive Shaft and Axle — 15Suspension System — 36Steering — 12Restraints — 50Brake System — 38Body (Interior and Exterior) — 54Body Electrical System — 233Heating, Ventilation, and Air Conditioning — 57
~1min read

Description

The underdrive brake control solenoid valve (UD/B_VFS) is attached to the valve body. This variable force solenoid valve directly controls the hydraulic pressure to the underdrive brake.

Test yourself

A quick Kia Optima Hybrid Owner's Manual quiz: every answer comes with an explanation and a link to the manual page.