Page 531 of 632

5317-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
WA R N I N G
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold and
inflated to the inflation pressure recomm ended by the vehicle manufacturer on the
vehicle placard or tire inflation pressure la bel (tire and load information label). (If your
vehicle has tires of a different size than the size indicated on the vehicle placard or tire
inflation pressure label [tire and load in formation label], you should determine the
proper tire inflation pressure for those tires.)
As an added safety feature, your vehicle has been equipped with a tire pressure moni-
toring system (TPMS-tire pressure warning system) that illuminates a low tire pressure
telltale (tire pressure warning light) when on e or more of your tires is significantly
under-inflated. Accordingly, when the low ti re pressure telltale (tire pressure warning
light) illuminates, you should stop and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a significantly under-inflated tire causes the
tire to overheat and can lead to tire failure. Under-inflation also reduces fuel efficiency
and tire tread life, and ma y affect the vehicle’s handling and stopping ability.
Please note that the TPMS (tire pressure wa rning system) is not a substitute for proper
tire maintenance, and it is the driver’s resp onsibility to maintain correct tire pressure,
even if under-inflation has no t reached the level to trigger illumination of the TPMS low
tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system) mal-
function indicator to indicate when the system is not operating properly. The TPMS
(tire pressure warning system) malfunction indi cator is combined with the low tire pres-
sure telltale (tire pressure warning light). When the system detects a malfunction, the
telltale will flash for approximately one minu te and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicle start-ups as long as the
malfunction exists. When the malfunction indicator is illuminated, the system may not
be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfun ctions may occur for a variety of reasons,
including the installation of replacement or alternate tires or wheels on the vehicle that
prevent the TPMS (tire pressure warning system) from functioning properly. Always
check the TPMS (tire pressure warning syst em) malfunction telltale after replacing one
or more tires or wheels on your vehicle to ensure that the replacement or alternate
tires and wheels allow the TPMS (tire pressure warning system) to continue to function
properly.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specificatio ns or makers, as the tire pressure warning
system may not operate properly.
Page 536 of 632
536
LX570_OM_OM60N01U_(U)7-2. Steps to take in an emergency
If you have a flat tire
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to “P”.
●Turn off the 4-Wheel AHC. (
P. 2 9 7 )
●Stop the engine.
●Turn on the emergency flashers.
Your vehicle is equipped with a spare ti re. The flat tire can be replaced with
the spare tire.
For details about tires: P. 4 8 6
WA R N I N G
■If you have a flat tire
Do not continue driving with a flat tire.
Driving even a short distance with a flat ti re can damage the tire and the wheel beyond
repair, which could result in an accident.
Before jacking up the vehicle
Location of the spare tire, jack and tools
Jack
Spare tire To o l b o x1
2
3
Page 539 of 632
5397-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
Assembling the jack handle.
Remove the jack handle and the jack extens ion bar from the tool box and assemble by
following these steps.
Loosen the screw using a screw-
driver.
Assemble the jack handle and the
jack handle extension bar and
tighten the screw.
Check that the scre w is firmly tight-
ened.
Open the cover.
Insert the jack handle extension into
the lowering screw.
Lower
Raise
Place a rag under the jack handle
extension to protect the back door.
Taking out the spare tire
1
1
2
2
3
1
2
Page 540 of 632
5407-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
Lower the spare tire completely to
the ground.
Pull out the spare tire and remove
the holding bracket and spare wheel
cover.
Chock the tires.4
5
Replacing a flat tire
1
Flat tireWheel chock positions
FrontLeft-hand sideBehind the rear right-hand side tire
Right-hand sideBehind the rear left-hand side tire
RearLeft-hand sideIn front of the front right-hand side tire
Right-hand sideIn front of the front left-hand side tire
Page 543 of 632

5437-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
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.
7
WA R N I N G
■Replacing a flat tire
●Observe the following precautions.
Failure to do so may result in serious injury:
• Lower the spare tire completely to the ground before removing it from under the vehicle.
• Do not try to remove the wheel ornament by hand. Take due care in handling the
ornament to avoid unexpected personal 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.
• Turn off the vehicle height control. The vehicle height may change due to the automatic leveling function and you may
catch part of your body in the vehicle, resulting in an accident. ( P. 2 9 7 )
●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, caus ing 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 97 ft
•lbf (131 N•m, 13.4
kgf
•m) 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.
• Do not attach a heavily damaged wheel ornament, as it may fly off the wheel while
the vehicle is moving.
■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. 124). Failure to do so may cause the back door to operat e unintentionally if
the power back door switch is accidentally touched, resulting in hands and fingers
being caught and injured.
Page 544 of 632
5447-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
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, and the
tire may come off the vehicle.
Install the spare tire and loosely
tighten each nut by hand to approxi-
mately the same amount.
Turn the nut washers until they come
into contact with the disc wheel.
Lower the vehicle.
Firmly tighten each nut two or three
times in the order shown in the illus-
tration.
Tightening torque:
97 ft•lbf (131 N•m, 13.4 kgf•m)
Installing the spare tire
1
Disc wheel
Wa s h e r
2
3
4
Page 545 of 632
5457-2. Steps to take in an emergency
LX570_OM_OM60N01U_(U)
7
When trouble arises
Reinstall the wheel ornament.
Lay down the tire with the outer side
facing up, and install the spare wheel
cover and holding bracket.
Raise the tire.
Stow the tools and jack securely, and replace all covers.
■After completing the tire change
The tire pressure warning system must be reset. ( P. 4 8 7 )
5
20-inch tires21-inch tires
Remove the center wheel ornament
from the flat tire by pushing from the
reverse side, and reinstall it. Make sure to push the center part of
the wheel ornament.
Stowing the flat/spare tire, jack and tools
1
2
3
Page 569 of 632
LX570_OM_OM60N01U_(U)
5698-1. Specifications
8
Vehicle specifications
20-inch tires
21-inch tires
Suspension
Fluid typeSuspension fluid AHC
Tires and wheels
Ti r e s i z e285/50R20 112V
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Normal drivingFront:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Trailer towing
Add 2 psi (10 kPa, 0.1 kgf/cm
2 or bar) to the rear
tires.
Wheel size20 8 1 /2J
Wheel nut torque97 ft•lbf (131 N•m, 13.4 kgf•m)
Ti r e s i z e275/50R21 113V XL
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Normal driving
Front:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Spare:
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Trailer towing Add 6 psi (40 kPa, 0.4 kgf/cm
2 or bar) to the
rear tires.
Wheel size21 X 8 1 /2J
Wheel nut torque97 ft•lbf (131 N•m, 13.4 kgf•m)