2009 Lexus GS 450h Owners Manual - Page 277

2-4. Using other driving systems n PCS (Pre-Collision System) (if equipped) →P. 221 n VGRS (Variable Gear Ratio Steering) Adjusts the wheel turning angle in accordance with the vehicle speed and steering wheel movement. n VDIM (Vehicle Dynamics Integrated Management) Provides integrated control of the ABS, Enhanced VSC, TRAC, hill-start assist control, VGRS and EPS systems. Helps to maintain vehicle stability when swerving on slippery road surfaces by controlling the brakes, hybrid output, and the movement of the front wheels. 2 When driving When the Enhanced VSC/TRAC/hill-start assist control systems are operating If the vehicle is in danger of slipping, rolling backwards when starting on an incline, or if the rear wheels spin, the slip indicator light flashes to indicate that the Enhanced VSC/TRAC/hill-start assist control systems have been engaged. A buzzer (intermittent) sounds to indicate that Enhanced VSC is operating. The stop lights and high mounted stoplight turn on when the hill-start assist control system is operating. The slip indicator light flashes as well when ABS is operating. 215 GS_HV_U (OM30B44U) March 8, 2010 10:03 am