If a warning light turns on or a warning buzzer sounds...
Calmly perform the following actions if any of the warning lights turn on or flash. If a light turns on or flashes, but then turns off, this does not necessarily indicate a malfunction in the system.
Stop the vehicle immediately. Continuing to drive the vehicle may be dangerous.
The following warning indicates a possible problem in the brake system.
Immediately stop the vehicle in a safe place and contact your Lexus dealer.

*: Parking brake engaged warning buzzer:
A buzzer will sound if the vehicle is driven at a speed of approximately 3 mph (5 km/h) or more.
- Stop the vehicle immediately.
- Have the vehicle inspected by your Lexus dealer immediately.
- Have the malfunction repaired immediately.
See also:
Disabling the TRAC or Active TRAC/VSC systems
If the vehicle gets stuck in fresh snow or mud, the TRAC or Active TRAC/ VSC
systems may reduce power from the engine to the wheels. You may need to turn the
system off to enable you to rock the v ...
Maintenance and care
Cleaning and protecting the vehicle exterior
Perform the following to protect the vehicle and maintain it in prime
condition:
l Working from top to bottom, liberally apply water to the vehicle
bo ...
Using the interior lights
Interior lights list
1. Front personal lights.
2. Front interior lights.
3. Shift lever light (when the “POWER” switch is in ACCESSORY or
ON mode).
4. Rear personal lights.
5. Rear interio ...
