Page 865 of 960
5
When trouble arises
8635-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) Raise 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.STEP 6
STEP 7
Page 866 of 960
8645-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) 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, and the tire may come off
the vehicle.
Install the spare tire and loosely
tighten each nut by hand to
approximately 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 illustration. Tightening torque:
97 ft•lbf (131 N•m, 13.4 kgf•m)STEP 1
STEP 2
Disc wheel Washer
STEP 3
STEP 4
Page 867 of 960
5
When trouble arises
8655-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) Reinstall the wheel ornament.
Stowing the flat/spare tire, jack and tools
Lay down the tire with the outer
side facing up, and install the hold-
ing bracket.
Raise the tire.
Stow the tools and jack secu rely, and replace all covers.STEP 5
STEP 1
■
After completing the tire change
The tire pressure warning system must be reset. ( P. 768)STEP 2
STEP 3
Page 868 of 960

8665-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) CAUTION■
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 other 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 jack s 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-Wheel AHC and stop the engine. ●
Do not put any part of your body un der the vehicle supported by a jack.●
Do not start or run the engine while your vehicle is supported by the jack. ●
Do not raise the vehicle while someone is in it. ●
When raising the vehicle, do not put an object on or under the jack. ●
Do not raise the vehicle to a height greate r 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 vehi cle to ensure that no one working on or
near the vehicle will be injured. ■
Using the jack handle
Tighten all the jack handle bolts securely using a Phillips-head screwdriver, to pre-
vent the extension parts from coming apart unexpectedly.
Page 869 of 960

5
When trouble arises
8675-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) CAUTION■
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 ti re, etc. may result in burns.
• Turn off the vehicle height control.
The vehicle height may change due to the automatic leveli ng function and
you may catch part of your body in th e vehicle, resulting in an accident.
( P. 320)●
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 97 ft
• lbf (131 N
• m,
13.4 kgf
• m) as soon as possible after changing wheels.
• When installing a tire, only use whee l 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.
Page 870 of 960

8685-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) CAUTION■
Replacing a flat tire for vehicles with power back door
In cases such as when replacing tires, ma ke sure to turn off the power back door
main switch ( P. 57). Failure to do so may cause the back door to operate unin-
tentionally if the power back door switch is accidentally touched, resulting in hands
and fingers being caught and injured.
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. ■
When stowing the flat tire
Ensure that there is no object caught between the tire and the vehicle underbody. ■
When replacing the tires ●
When removing or fitting the wheels, tires or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and
transmitter may be damaged if not handled correctly.●
Replace the grommets for th e tire pressure warning valves and transmitters as
well.■
To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid seal ants, the tire pressu re warning valve and
transmitter may not operate properly. If a liquid sealant is used, contact your Lexus
dealer or other qualified serv ice shop as soon as possible. Make sure to replace the
tire pressure warning valve and tran smitter when replacing the tire. ( P. 767)
Page 871 of 960

5
When trouble arises
8695-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) If the engine will not start If the engine still does not start afte r following the correct starting proce-
dure ( P. 177) or releasing the steering lock ( P. 179), confirm the fol-
lowing points.
■ The engine will not start even when the starter motor operates
normally
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( P. 177)
● There may be a malfunction in the engine immobilizer system.
( P. 119)
■ The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume
One of the following may be the cause of the problem.
● The battery may be discharged. ( P. 875)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over
The engine starting sy stem may be malfunctioning due to an electri-
cal problem such as an open ci rcuit or a blown fuse. However, an
interim measure is available to start the engine. ( P. 869)
Page 872 of 960

8705-2. Steps to take in an emergency
LX570_OM_OM60L96U_(U) Emergency start function
When the engine does no t start, the following s teps can be used as an
interim measure to start the engine if the “ENGINE START STOP”
switch is functioning normally.
Set the parking brake.
Put the shift lever in “P”.
Set the “ENGINE START STOP” switch to the ACCESSORY
mode.
Push and hold the “E NGINE START STOP” sw itch about 15 sec-
onds while dep ressing the brake pedal firmly.
Even if the engine can be started using the above step s, the system may
be malfunctioning. Have the vehi cle checked by your Lexus dealer.■ The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound
One of the following may be the cause of the problem.
● The battery terminal connections may be loose or corroded.
● The battery may be discharged. ( P. 875)
● There may be a malfunction in the steering lock system.Contact your Lexus dealer, if the problem cannot be repaired, or if
repair procedures are unknown.
STEP 1
STEP 2
STEP 3
STEP 4