When the VSC/TRAC or Active TRAC/hill-start assist control systems are operating
If the vehicle is in danger of slip- ping or rolling backward when starting on an incline, or if any of the drive wheels spins, the slip indi- cator light flashes to indicate that the VSC/TRAC or Active TRAC/ hill-start assist control systems are operating.
A buzzer (intermittent) sounds to indicate that VSC is operating.
The stop lights and high mounted stoplight turn on when the hill-start assist control system is operating.

See also:
Replacement parts
To ensure optimum performance
and maintain the quality built into
your vehicle’s emission control systems,
Lexus recommends the use of
Genuine Lexus Parts when servicing
or repairing the system ...
Rear window defogger switch
Defoggers are used to defog the rear window, and to remove raindrops, dew
and frost from the outside rear view mirrors.
Vehicles with a navigation system
Refer to the “Navigation System Owner’ ...
Light bulbs
A: HB3 halogen bulbs
B: D4S discharge bulbs
C: H11 halogen bulbs
D: Wedge base bulb (amber)
E: Wedge base bulb (clear)
*: If equipped ...
