wheel LEXUS RX270 2014 Owners Manual

540
5-1. Essential information
RX350/270_EE
CAUTION
■While towing
●When towing using a rope, avoid sudden starts, etc. which place excessive stress
on the towing hook and rope.
The towing hook or rope may become damaged, broken debris may hit people
and cause serious damage.
●Do not turn the “ENGINE START STOP” switch off.
There is a possibility that the steering wheel is locked and can not be operated.
■Installing towing eyelet to the vehicle
Make sure that towing eyelet is installed securely.
If not securely installed, towing eyelet may come loose during towing.
NOTICE
■To prevent damage to the vehicle when towing using a wheel-lift type truck
When raising the vehicle, ensure adequate ground clearance for towing at the
opposite end of the raised vehicle. Without adequate clearance, the vehicle could
be damaged while being towed.
■To prevent body damage when towing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
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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.)
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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.
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5
571
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
Sounds
once
(Flashes)
The steering lock
could not be
released within 3
seconds of the
“ENGINE START
STOP” switch
being pressed. Press the
“ENGINE START
STOP” switch
while depressing
the brake pedal
and moving the
steering wheel left
and right.
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-
to-vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
Interior
buzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
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573
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
■Location of the spare tire, jack and tools
Vehicles with a compact spare tire
Vehicles with a full-size spare tire
Towing eyelet
Tool bag
Jack handle
Wheel nut
wrench
JackSpare tireSpare tire
cover
Towing eyelet
Tool bag
JackSpare tire Jack handle
Wheel nut
wrenchSpare tire
cover
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578
5-2. Steps to take in an emergency
RX350/270_EE
Replacing a flat tire
Chock the tires.
Slightly loosen the wheel nuts (one
turn).
Turn the tire jack portion “A” by
hand until the notch of the jack is in
contact with the jack point.
STEP1
Flat tireWheel chock
positions
Front
Left-
hand sideBehind the
rear right-
hand side tire
Right-
hand sideBehind the
rear left-
hand side tire
Rear
Left-
hand sideIn front of the
front right-
hand side tire
Right-
hand sideIn front of the
front left-
hand side tire
STEP2
STEP3
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5
579
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EERaise the vehicle until the tire is
slightly raised off the ground.
Remove all the wheel nuts and the
tire.
When resting the tire on the
ground, place the tire so that the
wheel design faces up to avoid
scratching the wheel surface.
Installing the spare tire
Remove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel
contact surface, the wheel nuts
may loosen while the vehicle is in
motion, causing the tire to come
off.
STEP4
STEP5
STEP1
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580
5-2. Steps to take in an emergency
RX350/270_EEInstall the spare tire and loosely tighten each wheel nut by hand
by approximately the same amount.
Vehicles with a compact spare tire
Tighten the nuts until the tapered
portion comes into loose contact
with the disc wheel seat.
Vehicles with a full-size spare tire
Turn the nuts until the washers
come into contact with the wheel.
Lower the vehicle.
STEP2
Disc wheel
seat
Tapered portion
Wheel nut
Disc wheel
Wa s h e r
STEP3
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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
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584
5-2. Steps to take in an emergency
RX350/270_EE
CAUTION
■Replacing a flat tire
●Observe the following precautions.
Failure to do so may result in serious injury:
• Do not touch the disc wheels or the area around the brakes immediately after
the vehicle has been driven.
After the vehicle has been driven the disc wheels and the area around the
brakes will be extremely hot. Touching these areas with hands, feet or other
body parts while changing a tire, etc. may result in burns.
• Do not attach a heavily damaged wheel ornament, as it may fly off the wheel
while the vehicle is moving.
●Failure to follow these precautions could cause the wheel nuts to loosen and the
tire to fall off, resulting in death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened, leading
to bolt or disc wheel damage. In addition, the oil or grease can cause the
wheel nuts to loosen and the wheel may fall off, causing a serious accident.
Remove any oil or grease from the wheel bolts or wheel nuts.
• Have the wheel nuts tightened with a torque wrench to 103 N
•m (10.5 kgf•m,
76 f t
•lbf) as soon as possible after changing wheels.
• When installing a tire, only use wheel nuts that have been specifically
designed for that wheel.
• If there are any cracks or deformations in the bolt screws, nut threads or bolt
holes of the wheel, have the vehicle inspected by your Lexus dealer or
repairer, or another duly qualified and equipped professional immediately.
■Replacing a flat tire for vehicles with power back door
In cases such as when replacing tires, make sure to turn off the power back door
main switch (→P. 62). Failure to do so may cause the back door to operate uninten-
tionally if the power back door switch is accidentally touched, resulting in hands and
fingers being caught and injured.
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