Lexus ES 300h Owner's Manual page 455

454
7-2. Steps to take in an emergency
Warning buzzer
■
In some cases, the buzzer may not be heard
due to being in a noisy location or audio
sound.
Speed warning buzzer (for India)
■
The buzzer sounds when your vehicle
speed reaches or exceeds 80km/h (50
mph).
Then, the buzzer sounds when your vehicle
speed reaches or exceeds 120km/h (75
mph) in a different tone.
If the malfunction indicator lamp comes
■
on while driving (except for Korea)
For some models, the malfunction indicator
lamp will come on if the fuel tank becomes
completely empty. If the fuel tank is empty,
refuel the vehicle immediately. The malfunc-
tion indicator lamp will go off after several
trips.
If the malfunction indicator lamp does not
go off, contact your Lexus dealer as soon as
possible.
■ Electric power steering system warning
light (warning buzzer)
When the 12-volt battery charge becomes
insufficient 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 (vehicles with tire pressure
warning system)
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured: P.460
If none of the tires are punctured:
Turn the power switch off then turn it to 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 pres-
sure 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.418)
The tire pressure warning light may
■
come on due to natural causes (vehicles
with tire pressure warning system)
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 a spare tire
■
(vehicles with compact spare tire)
The compact spare tire is not equipped with
a tire pressure warning valve and transmit-
ter. If a tire goes flat, the tire pressure warn-
ing light will not turn off even though the flat
tire has been replaced with the spare tire.
Replace the spare tire with the repaired tire
and adjust the tire inflation pressure. The
tire pressure warning light will go off after a
few minutes.
Conditions that the tire pressure warn-
■
ing system may not function properly
(vehicles with tire pressure warning sys-
tem)
P.415