Brake Override System- Page 335

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7-2. Steps to take in an emergency

7

When trouble

 ari

ses

■

Slip indicator

■

Parking brake indicator (warning buzzer)

■

Brake hold operated indicator (warning buzzer)

■

Warning buzzer

In some cases, the buzzer may not be heard 

due to being in a noisy location or audio 

sound.

■

Front passenger detection sensor, seat 

belt reminder and warning buzzer

●

If luggage is placed on the front passen-

ger seat, the front passenger detection 

sensor may cause the warning light to 

flash and the warning buzzer to sound 

even if a passenger is not sitting in the 

seat.

●

If a cushion is placed on the seat, the sen-

sor may not detect a passenger, and the 

warning light may not operate properly.

■

SRS warning light

This warning light system monitors the air-

bag sensor assembly, front impact sensors, 

side impact sensors (front door), side 

impact sensors (front), side impact sensors 

(rear), driver’s seat position sensor, driver’s 

seat belt buckle switch, front passenger 

occupant classification system (ECU and 

sensors), “AIR BAG ON” indicator light, 

“AIR BAG OFF” indicator light, front pas-

senger’s seat belt buckle switch, seat belt 

pretensioners and force limiters, airbags, 

interconnecting wiring and power sources. 

(



P.28)

■

If the malfunction indicator lamp comes 

on while driving

First check the following:

Warning light

Details/Actions

Indicates a malfunction in:



The VSC system;



The TRAC system; or



The hill-start assist control system



Have the vehicle inspected by your Lexus dealer immediately.

Warning light

Details/Actions

(flashes)

(U.S.A.)

or

(flashes)

(Canada)

It is possible that the parking brake is not fully engaged or released



Operate the parking brake switch once again.

This light 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.

Warning light

Details/Actions

(flashes)

Indicates a malfunction in the brake hold system



Have the vehicle inspected by your Lexus dealer immediately.