2012 Lexus LS 460 Owners Manual - Page 728

734

5-2. Steps to take in an emergency

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If the tire pressure warning system is inoperative

The tire pressure warning system will be disabled in the following conditions:

(When the condition becomes normal, the system will work properly.)

●

If tires not equipped with tire pressure warning valves and transmitters are used.

●

If the ID code on the tire pressure warning valves and transmitters is not regis-

tered in the tire pressure warning computer.

●

If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm

2

or bar) or higher.

The tire pressure warning system may be disabled in the following conditions:

(When the condition becomes normal, the system will work properly.)

●

If electronic devices or facilities using similar radio wave frequencies are nearby.

●

If a radio set at similar frequencies is in use in the vehicle.

●

If a window tint that affects the radio wave signals is installed.

●

If there is a lot of snow or ice on the vehicle, in particular around the wheels or

wheel housings.

●

If non-genuine Lexus wheels are used. (Even if you use Lexus wheels, the tire

pressure warning system may not work properly with some types of tires.)

●

If tire chains are used.

●

If the spare tire is in a location subject to poor radio wave signal reception.

●

If a large metallic object which can interfere with signal reception is put in the

trunk.

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If the tire pressure warning light frequently comes on after blinking for 1 minute

If the tire pressure warning light frequently comes on after blinking for 1 minute

when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have

it checked by your Lexus dealer.

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Customization

The vehicle speed linked seat belt reminder buzzer can be disabled.

(Customizable features

→

P. 794)