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:
Loading a CD
Press the “LOAD” button.
“WAIT” is shown on the display.
When the indicator on the slot turns
from amber to green, insert a CD.
The display changes from “WAIT” to “LOAD”.
  ...
Consumption
The average fuel consumption of the last 30 minutes will be shown in one−minute
blocks.
1. Push the “INFO/PHONE” button.
2. Touch “Fuel Consumption” on the “Information” screen.
...
Front differential
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at
the factory.
Use Lexus approved “Toyota Genuine Differential Gear Oil” or an equivalent of
matching qualit ...
