Lexus LX 570 Owner's Manual page 584

Front passenger detection sensor, seat belt reminder and warning buzzer
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If luggage is placed on the front passenger seat, the front passenger detection sensor
●
may cause the warning light to flash and the warning buzzer to sound even if a passen-
ger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger, and the warn-
●
ing light may not operate properly.
If the malfunction indicator lamp comes on while driving
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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 malfunction 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.
If the low speed four-wheel drive indicator light or the center differential lock indicator
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light blinks
Take the specified steps. (P. 335)
If the brake system warning light or the malfunction indicator light also comes on, or the
low speed four-wheel drive indicator light or the center differential lock indicator light
continues to blink after taking the specified steps, there may be a malfunction in the
engine, the brake system or the four-wheel drive system. In this case, you may not be able
to transfer between "H4" and "L4" modes, and the center differential lock may not be
able to be locked or unlocked. Have the vehicle inspected by your Lexus dealer, immedi-
ately.
When the tire pressure warning light comes on (vehicles with the tire pressure warning
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system)
Inspect the tires to check if a tire is punctured.
If a tire is punctured: P. 591
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 flashes.
If the tire pressure warning light comes on

After the temperature of the tires has lowered sufficiently, check the inflation pressure
1
of each tire and adjust them to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
2
that the inflation pressure of each tire is at the specified level and perform initialization.
(P. 538)
If the tire pressure warning light blinks for 1 minute then stay on

There may be a malfunction in the tire pressure warning system. Have the vehicle
inspected by your Lexus dealer immediately.
The tire pressure warning light may turn on due to natural causes (vehicles with the tire
■
pressure warning system)
The tire pressure warning light may turn on due to natural causes such as natural air leaks
or tire inflation pressure changes caused by temperature. In this case, adjusting the tire
inflation pressure will turn off the warning light (after a few minutes).
LX570_450d_OM_OM60R63E_(GE)
7-2. Steps to take in an emergency
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