If A Warning Light Turns On Or A Warning Buzzer Sounds - Lexus ES350 Manual

If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes
on or flashes. If a light comes on or flashes, but then goes off, this does
not necessarily indicate a malfunction in the system. However, if this
continues to occur, have the vehicle inspected by your Lexus dealer.
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.
Warning light
(U.S.A.)
(Canada)
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: Brake system warning buzzer (hybrid vehicles):
When there is a possible problem that could affect braking performance, the
warning light will come on and a warning buzzer will sound.
Parking brake engaged warning buzzer:
P. 776
Brake system warning light operation (hybrid vehicles)
■
Although depressing the brake pedal repeatedly may cause the red brake system
warning light to turn on and the buzzer to sound, this does not indicate a malfunction.
ES350_300h_OM_OM33A60U_(U)
7-2. Steps to take in an emergency
Warning light/Details
Brake system warning light (warning buzzer)
• Low brake fluid
• Malfunction in the brake booster system
This light also comes on when the parking brake is not released.
If the light turns off after the parking brake is fully released the
system is operating normally.
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