2014 LEXUS RX270 tire pressure

548
5-2. Steps to take in an emergency
RX350/270_EE
■If the malfunction indicator lamp comes on while driving
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 malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Front passenger detection sensor, passenger seat belt reminder and warning
buzzer
●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 passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the 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
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.
■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,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).
RX350_270_EE_48D77E.book 548 ページ ２０１４年１月２４日　金曜日　午前１０時４分

5
549
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
■When a tire is replaced with a spare tire
Vehicles with a compact spare tire
The compact spare tire is not equipped with a tire pressure warning valve and trans-
mitter. 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. 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.
Vehicles with a full-size spare tire
The spare tire is also equipped with the tire pressure warning valve and transmitter.
The tire pressure warning light will turn on if the tire inflation pressure of the spare
tire is low. If a tire goes flat, even though the flat tire is replaced with the spare tire,
the tire pressure warning light does not turn off. Replace the spare tire with the
repaired tire and adjust to the proper tire inflation pressure. The tire pressure warn-
ing light will turn off after a few minutes.
■If the tire pressure warning system is not functioning
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 500 kPa (5.1 kgf/cm2 or bar, 73psi) 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.)
RX350_270_EE_48D77E.book 549 ページ ２０１４年１月２４日　金曜日　午前１０時４分

550
5-2. Steps to take in an emergency
RX350/270_EE
●If tire chains are used
●Vehicles with a full-size spare tire: If the spare tire is in a location subject to poor
radio wave signal reception
●Vehicles with a full-size spare tire: If a large metallic object which can interfere
with signal reception is put in the luggage compartment
■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 any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 6 2 2 )
CAUTION
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
RX350_270_EE_48D77E.book 550 ページ ２０１４年１月２４日　金曜日　午前１０時４分

5
551
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warn-
ing system may not operate properly.
RX350_270_EE_48D77E.book 551 ページ ２０１４年１月２４日　金曜日　午前１０時４分

5
581
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EEFirmly tighten each wheel nut two
or three times in the order shown
in the illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
Stow the flat tire, tire jack and all tools.
STEP4
■The compact spare tire (if equipped)
●The compact spare tire is identified by the label “TEMPORARY USE ONLY”
on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(→P. 6 1 7 )
■When using the compact spare tire (if equipped)
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you replace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■If you have a flat front tire on a road covered with snow or ice (vehicles with a
compact spare tire)
Install the compact spare tire on one of the rear wheels of the vehicle. Perform the
following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
■After completing the tire change (vehicles with tire pressure warning system)
The tire pressure warning system must be reset. (→P. 4 8 5 )
STEP5
STEP1
STEP2
STEP3
RX350_270_EE_48D77E.book 581 ページ ２０１４年１月２４日　金曜日　午前１０時４分

586
5-2. Steps to take in an emergency
RX350/270_EE
NOTICE
■Do not drive the vehicle with a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the wheel
beyond repair.
■Be careful when driving over bumps with the compact spare tire installed on the
vehicle.
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires. Be careful when driving over uneven road sur-
faces.
■Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving performance.
■When replacing the tires (vehicles with tire pressure warning system)
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact any authorized Lexus dealer or repairer, or another duly quali-
fied and equipped professional as the tire pressure warning valve and transmitter
may be damaged if not handled correctly.
■To avoid damage to the tire pressure warning valves and transmitters (vehicles
with tire pressure warning system)
When a tire is repaired with liquid sealants, the tire pressure warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional
or other qualified service shop as soon as possible. Make sure to replace the tire
pressure warning valve and transmitter when replacing the tire. (→P. 4 8 4 )
RX350_270_EE_48D77E.book 586 ページ ２０１４年１月２４日　金曜日　午前１０時４分

617
6-1. Specifications
6
Vehicle specifications
RX350/270_EE
Tires and wheels
Type A
Type B
Ti r e s i z e235/60R18 103V, T165/90D18 107M (spare)
Tire inflation pressure
(front and rear)
(recommended cold tire
inflation pressure)
Vehicle speedFront wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 160
km/h (100 mph)240 (2.4, 35)260 (2.6, 38)
160 km/h (100
mph) or less220 (2.2, 32)220 (2.2, 32)
Tire inflation pressure
(spare)
(recommended cold tire
inflation pressure)
420 kPa (4.2 kgf/cm2 or bar, 60 psi)
Wheel size18 × 7 1 /2J, 18 × 4T (spare)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Ti r e s i z e235/60R18 103V
Tire inflation pressure
(recommended cold tire
inflation pressure)
Vehicle speedFront wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 160
km/h (100 mph)240 (2.4, 35)260 (2.6, 38)
160 km/h (100
mph) or less220 (2.2, 32)220 (2.2, 32)
Wheel size18 × 7 1 /2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
RX350_270_EE_48D77E.book 617 ページ ２０１４年１月２４日　金曜日　午前１０時４分

618
6-1. Specifications
RX350/270_EEType C
Type D
Ti r e s i z e235/55R19 101V, T165/90D18 107M (spare)
Tire inflation pressure
(front and rear)
(recommended cold tire
inflation pressure)
Vehicle speedFront wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 160
km/h (100 mph)250 (2.5, 36)280 (2.8, 41)
160 km/h (100
mph) or less220 (2.2, 32)220 (2.2, 32)
Tire inflation pressure
(spare)
(recommended cold tire
inflation pressure)
420 kPa (4.2 kgf/cm2 or bar, 60 psi)
Wheel size19 × 7 1 /2J, 18 × 4T (spare)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Ti r e s i z e235/55R19 101V
Tire inflation pressure
(recommended cold tire
inflation pressure)
Ve h i c l e s p e e dFront wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 160
km/h (100 mph)250 (2.5, 36)280 (2.8, 41)
160 km/h (100
mph) or less220 (2.2, 32)220 (2.2, 32)
Wheel size19 × 7 1 /2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
RX350_270_EE_48D77E.book 618 ページ ２０１４年１月２４日　金曜日　午前１０時４分