flat tire LEXUS LX570 2019 Owner's Guide

521
LX570_OM_OM60R07U_(U) 7
When trouble arises 7-2. Steps to take in an emergency
If you think something is wrong ●
Fluid leaks under the vehicle
(Water dripping from the air co nditioning after use is normal)●
Flat-looking tires or uneven tire wear ●
Engine coolant temperature gauge needle continually points higher than nor-
mal ●
Engine oil pressure gauge contin ually points lower than normal●
Voltmeter continually points higher or lower than normal●
Changes in exhaust sound ●
Excessive tire squeal when cornering ●
Strange noises related to the suspension system ●
Pinging or other noises related to the engine ●
Engine missing, stumbling or running roughly ●
Appreciable loss of power ●
Vehicle pulls heavily to one side when braking ●
Vehicle pulls heavily to one side when driving on a level road ●
Loss of brake effectiveness, spongy f eeling, pedal almost touches the floorIf you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact your Lexus dealer as soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

5257-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises (Flashes)
Low speed four-wheel drive indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. (  P. 309)
 Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
Center differential lock indicator light
Indicates a malfunction in the four -wheel drive system if the light
continues flashing. (  P. 309)
 Have the vehicle inspected by your Lexus dealer immediately.
Open door warning light (warning buzzer)
* 2
Indicates that a door is not fully closed
 Check that all the doors are closed.
Low fuel level warning light
Indicates that remaining fuel is approximately 4.0 gal. (15.0 L,
3.3 Imp.gal.) or less
 Refuel the vehicle.
Driver’s seat belt reminder light (warning buzzer)
* 3
Warns the driver to fast en his/her seat belt.
 Fasten the seat belt. (On the center panel)
Front passenger’s seat belt re minder light (warning buzzer)
* 3
Warns the front passenger to fasten his/her seat belt.
 Fasten the seat belt.
Master warning light
A buzzer sounds and the warning light comes on or flashes to indi-
cate that the master warning sy stem has detected a malfunction.
 P. 531
Tire pressure warning light
Indicates that:
•Flat tire
• Natural causes
• The tire pressure warnin g system is malfunctioning
 Immediately stop the vehicle in a safe place.
Handling method (  P. 528)
Power steering system warning light (warning buzzer)
Indicates a malfunction in the power steering system
 Have the vehicle inspected by your Lexus dealer immediately. (Flashes)
(U.S.A.)
(Flashes)
(Canada)
Parking brake indicator
Indicates that the parking brake is not fully engaged or released
 Operate the parking brake switch once again.
This light comes on when the parking brake is not released.
* 4
If the
light turns off after the parking brak e is fully released, the system is
operating normally.Warning light Warning light/Details/Actions

528 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) ■
When the tire pressure warning light comes on
Inspect the tires to check if a tire is punctured.
If a tire is punctured:  P. 535
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 lowere d sufficiently, check the inflation pressure
of each tire and adjust th em to the specified level.
If the warning light does not turn off even after several minutes have elapsed, check
that the inflation pressure of each tire is at the specified level an d perform initialization.
(  P. 489)
If the warning light does not turn off even after several minutes have elapsed, have the
vehicle inspected by your Lexus dealer immediately. 
If the tire pressure wa rning light flashes for 1 minute then stay on
There may be a malfunction in the tire pressure warnin g system. Have the vehicle
inspected by your Lexus dealer immediately. ■
The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on du e 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).■
When a tire is replaced with a spare tire
The spare tire is also equipped with the tire pressure warning valve and transmitter. The
tire pressure warning light will tu rn on if the tire inflation pressu re 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 the
proper tire inflation pressure. The tire pressu re warning light will tu rn off after a few min-
utes. ■
Conditions that the tire pressure wa rning system may not function properly
 P. 492 ■
Changing the engine oil
Make sure to reset oil change system ■
Warning buzzer
In some cases, the buzzer ma y not be heard due to being in a noisy location or audio
sound. 1
2

5297-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises WARNING ■
If both the ABS and the brake sy stem warning lights remain on
Stop your vehicle in a safe place immediat ely and contact your Lexus dealer. The vehi-
cle will become extremely unstable during br aking, and the ABS system may fail, which
could cause an accident resultin g in death or serious injury.■
If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of vehi-
cle control and result in death or serious injury. ●
Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
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 the tire is flat, change to
the spare tire and have the flat tire repaired by the nearest Lexus dealer. ●
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.

530 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) WARNING ■
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 label (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 ha s 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 st op and check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a si gnificantly under-inflat ed tire causes the
tire to overheat and can lead to tire failure . Under-inflation also reduces fuel efficiency
and tire tread life, and may 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 th e driver’s responsibility to ma intain correct tire pressure,
even if under-inflation has not reached the le vel to trigger illumina tion of the TPMS low
tire pressure telltale (tir e 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 mi nute and then remain continuously illumi-
nated. This sequence will cont inue upon subsequent vehicl e start-ups as long as the
malfunction exists. When the malfunction in dicator 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 system) 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 pressu re 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.

535
LX570_OM_OM60R07U_(U) 7
When trouble arises 7-2. Steps to take in an emergency
If you have a flat tire ●
Stop the vehicle in a safe pl ace on a hard, flat surface.●
Set the parking brake. ●
Shift the shift lever to “P”. ●
Turn off the 4-Wheel AHC. (  P. 301)●
Stop the engine. ●
Turn on the emergency flashers.Your vehicle is equipped with a spare tire. The flat tire can be replaced with
the spare tire.
For details about tires:  P. 488WARNING ■
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 re sult in an accident.
Before jacking up the vehicle
Location of the spare tire, jack and tools
Jack
Spare tire Tool box1
2 3

536 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) WARNING ■
Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack. ●
Do not use the tire jack for any purpose ot her than replacing tires or installing and
removing tire chains. ●
Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do no t use other tire jacks for replacing tires on
this vehicle. ●
Always check that the tire jack is securely set to the jack point.●
Be sure to turn off the 4-Wh eel AHC and stop the engine.●
Do not put any part of your body under the vehicle supported by a jack. ●
Do not start or run the engine while yo ur vehicle is supported by the jack.●
Do not raise the vehicle while someone is in it. ●
When raising the vehicle, do not pu t an object on or under the jack.●
Do not raise the vehicle to a height greater than that required to replace the tire. ●
Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the ve hicle to ensure that no one working on or
near the vehicle will be injured. ■
Using the jack handle
Tighten all the jack handle bo lts securely using a Phillips-he ad screwdriver, to prevent
the extension parts from co ming apart unexpectedly.

5397-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 7
When trouble arises 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 tire Wheel chock positions
Front Left-hand side Behind the rear right-hand side tire
Right-hand side Behind the rear left-hand side tire
Rear Left-hand side In front of the front right-hand side tire
Right-hand side In front of the front left-hand side tire

542 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) 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
WARNING ■
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 th e automatic leveling function and you may
catch part of your body in the ve hicle, resulting in an accident. (  P. 301)●
Failure to follow these precautions could cau se 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 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 or nament, 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. 130). Failure to do so may cause th e back door to operate unintentionally
if the power back door switch is accidental ly touched, resulting in hands and fingers
being caught and injured.

544 7-2. Steps to take in an emergency
LX570_OM_OM60R07U_(U) Reinstall the wheel ornament. 5 
20-inch tires 
21-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.