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:
How does the arbitration process work?
When NCDS receives your request, it will be forwarded to the Lexus area office
for response.
At the request of either party or the arbitrators, NCDS may schedule a technical
inspection. This may ...
Reporting safety defects for U.S. owners
If you believe that your vehicle has a defect which could cause a
crash or could cause injury or death, you should immediately
inform the National Highway Traffic Safety Administration
(NHTSA) in a ...
Selecting tire chains
Use the correct tire chain size when mounting the tire chains.
Chain size is regulated for each tire size.
Side chain:
1. Side chain
(0.20 in. [5 mm] in diameter)
2. Cross chain
(0.25 in ...
