Page 544 of 644
542
GX 460 _O M_ OM6 0F 6 8U _(U )7-2. Steps to take in an emergency
If you have a flat tire
●Stop the vehicle in a safe place on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Turn off the rear height control air suspension (if equipped). (
→P. 337)
●Stop the engine.
●Turn on the emergency flashers. ( →P. 5 1 0 )
Your vehicle is equipped with a spare tire. The flat tire can be replaced with
the spare tire.
For details about tires: →P. 4 76
CAUTION
■If you have 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, which could result in an accident.
Before jacking up the vehicle
GX460_OM_OM60F68U_(U).book Page 542 Wednesday, June 8, 2016 6:37 PM
Page 546 of 644

5447-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
CAUTION
■Using the tire jack
Improper use of the tire jack may cause the vehicle to suddenly fall off the jack, leading
to death or serious injury.
●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 not use other tire jacks for replacing tires on
this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported by the jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is inside.
●When raising the vehicle, do not put 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.
●Be sure to turn off the height control and stop the engine.
Take particular care when lowering the vehicle 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 us ing a Phillips-head screwdriver, to prevent
the extension parts from coming apart unexpectedly.
GX460_OM_OM60F68U_(U).book Page 544 Wednesday, June 8, 2016 6:37 PM
Page 549 of 644
5477-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
7
When trouble arises
Insert the jack handle extension into
the lowering socket. Lower
Raise
Place a rag under the jack handle
extension to protect the rear bumper.
Lower the spare tire completely to
the ground.
If the spare tire becomes caught on the suspension components, raise the tire,
pull it towards the rear of the vehicle, and begin lowering it again. Pull out the spare tire and remove
the holding bracket.
3
1
2
4
5
GX460_OM_OM60F68U_(U).book Page 547 Wednesday, June 8, 2016 6:37 PM
Page 552 of 644
5507-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
Position the jack at the jack points as
shown.Front
Under the chassis frame side rail
Rear
Under the rear axle housing
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.
5
1
2
6
7
GX460_OM_OM60F68U_(U).book Page 550 Wednesday, June 8, 2016 6:37 PM
Page 553 of 644

5517-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
7
When trouble arises
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 tire, etc. may result in burns.
●Failure to follow these precautions could cause the nuts to loosen and the wheel may
fall off, which could lead to an accid ent causing 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 76 ft•lbf (103 N•m,
10.5 kgf•m) as soon as possible after changing wheels.
• Do not attach a heavily damaged wheel ornament, as it may fly off the wheel while the vehicle is moving.
• 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.
GX460_OM_OM60F68U_(U).book Page 551 Wednesday, June 8, 2016 6:37 PM
Page 554 of 644
5527-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(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 lug nuts until the washers come
into contact with the disc wheel.
Lower the vehicle.
Installing the spare tire
1
Wheel nut
Wa s h e r
Disc wheel2
3
GX460_OM_OM60F68U_(U).book Page 552 Wednesday, June 8, 2016 6:37 PM
Page 556 of 644

5547-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
Lay down the tire with the valve stem
facing up and install the holding
bracket, inserting the claw into the
wheel lug nut hole. Turn the jack
handle extension clockwise to take
up slack in the chain.
Then, check to ensure the claw is in the
wheel lug nut hole and the holding
bracket is centered in the wheel hub.
Claw
Holding bracket
Raise the tire.
While raising, pull the tire towards the
rear of the vehicle, taking care that the
tire goes up without catching on any
surrounding part, to prevent it from fly-
ing forward during a collision or sudden
braking.
After the tire goes half way up, check
that the suspended chain is able to enter
the tire hole, for proper storage.
Tightening torque:
34.4 ft•lbf (46.6 N•m, 4.8 kgf•m)
Confirm that the tire is not loose
after tightening: Push and pull the tire
Tr y r o t a t i n g
Visually check to ensure the tire is
not hung on surrounding parts.
If looseness or misassembly exists, repeat step and step .
Repeat step , any time the tire is lowered or disturbed.
Stow the tools and jack securely.
Stowing the flat tire, jack and all tools
incorrect
correct
1
1
2
2
3
1
2
23
43
5
GX460_OM_OM60F68U_(U).book Page 554 Wednesday, June 8, 2016 6:37 PM
Page 557 of 644
5557-2. Steps to take in an emergency
GX 460 _O M_ OM6 0F 6 8U _(U )
7
When trouble arises
CAUTION
■After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in their storage
location to reduce the possibility of personal injury during a collision or sudden brak-
ing.
NOTICE
■When stowing the flat tire
Ensure that there is no object caught between the tire and the vehicle underbody.
GX460_OM_OM60F68U_(U).book Page 555 Wednesday, June 8, 2016 6:37 PM