Brake Override System- Page 336

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7-2. Steps to take in an emergency

●

Is the fuel tank empty?

If it is, fill the fuel tank immediately.

●

Is the fuel tank cap loose?

If it is, tighten it securely.

The light will go off after several driving 

trips.
If the light does not go off even after several 

trips, contact your Lexus dealer as soon as 

possible.

■

Electric power steering system warning 

light (warning buzzer)

When the battery charge becomes insuffi-

cient or the voltage temporarily drops, the 

electric power steering system warning 

light may come on and the warning buzzer 

may sound.

■

When the tire pressure warning light 

comes on

Inspect the tires to check if a tire is punc-

tured.
If a tire is punctured: 



P.341

If none of the tires are punctured:

Turn the engine switch off then turn it to 

IGNITION ON mode. Check if the tire 

pressure warning light comes on or blinks.



If the tire pressure warning light blinks for 

approximately 1 minute then stays on

There may be a malfunction in the tire 

pressure warning system. Have the vehicle 

inspected by your Lexus dealer immedi-

ately.



If the tire pressure warning light comes 

on

1

After the temperature of the tires has 

lowered sufficiently, check the inflation 

pressure of each tire and adjust them to 

the specified level.

2

If the warning light does not turn off 

even after several minutes have 

elapsed, check that the inflation pres-

sure of each tire is at the specified level 

and perform initialization. (



P.301)

■

The tire pressure warning light may 

come on due to natural causes

The tire pressure warning light may come 

on due to natural causes such as natural air 

leaks and tire inflation pressure changes 

caused by temperature. In this case, adjust-

ing the tire inflation pressure will turn off the 

warning light (after a few minutes).

■

When a tire is replaced with the spare 

tire

The spare tire is not equipped with a tire 

pressure warning valve and transmitter. If a 

tire goes flat, the tire pressure warning light 

will not turn off even though the flat tire has 

been replaced with the spare tire.

■

Conditions that the tire pressure warn-

ing system may not function properly



P.299

WARNING

■

If both the ABS and the brake system 

warning lights remain on

Stop your vehicle in a safe place immedi-

ately and contact your Lexus dealer.

The vehicle will become extremely 

unstable during braking, and the ABS 

system may fail, which could cause an 

accident resulting in death or serious 

injury.

■

When the electric power steering 

system warning light comes on

When the light comes on yellow, the 

assist to the power steering is restricted. 

When the light comes on red, the assist 

to the power steering is lost and handling 

operations of the steering wheel become 

extremely heavy.

When steering wheel operations are 

heavier than usual, grip the steering 

wheel firmly and operate it using more 

force than usual.

■

If the tire pressure warning light 

comes on

Be sure to observe the following precau-

tions.

Failure to do so could cause a loss of 

vehicle control and result in death or 

serious injury.

●

Decelerate to the lowest appropriate 

speed as soon as possible. Do not 

drive over 50 mph (80 km/h).