wheel LEXUS RX450h 2021 Manual Online

4327-2. Steps to take in an emergency
Stop the vehicle in a safe place on a
hard, flat surface.
 Set the parking brake.
 Shift the shift lever to P.
 Stop the hybrid system.
 Turn on the emergency flashers.
( P.410)
If you have a flat tire
Your vehicle is equipped with a
spare tire. The flat tire can be
replaced with the spare tire.
For details about tires: P.380
WARNING
■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

4337-2. Steps to take in an emergency
7
When trouble arises
RX450hJack handle
Wheel nut wrench
Spare tire
Wheel lock key
* (if equipped)
Jack
*: Documentation relating to the wheel lock key, such as the registration and I.D. card, is
inside the glove box.
Location of the spare tire, jack and tools
A
B
C
D
E

4347-2. Steps to take in an emergency
RX450hLJack handle
Wheel nut wrench
Spare tire
Jack
Towing eyelet
Adapter socket
A
B
C
D
E
F
WARNING
■Using the tire jack
Observe the following precautions.
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 pur-
pose 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.
●Put the jack properly in its jack point.
●Do not put any part of your body under
the vehicle while it is supported by the
jack.
●Do not start the hybrid system or drive
the vehicle while the vehicle is sup-
ported by the jack.

4357-2. Steps to take in an emergency
7
When trouble arises
When replacing tires on a vehicle with
wheel lock nuts, use the following pro-
cedures to remove and install the
wheel lock nuts. The wheel lock key is
stored in the tray inside the luggage
compartment. Always return the wheel
lock key to its original position after
use, so that it does not get lost.
■Removal
For ease of removal, the wheel lock nut
should always be the first one loos-
ened.
1 Place the wheel lock key on top of
the wheel lock nut, turning until the
wheel lock key and wheel lock nut
patterns engage.
2 Place the wheel nut wrench on the
wheel lock key, and while applying
pressure on the wheel lock key,
loosen the wheel lock nut.
■Installation
For ease of installation, the wheel lock nut should always be the last one tight-
ened.
1
By hand, install a wheel lock nut on
each wheel.
2 Place the wheel lock key on top of
the wheel lock nut, turning until the
wheel lock key and wheel lock nut
patterns engage.
3 Place the wheel nut wrench on the
wheel lock key, and while applying
pressure on the wheel lock key,
tighten the wheel lock nut to the
recommended torque.
1 Secure the deck board using the
hook. ( P.331)
2 Disengage the hook and take out
the jack.
RX450h: Remove the wheel nut wrench
and then the jack.
RX450hL: Remove the jack handle and
then the jack.
WARNING
●Do not raise the vehicle while some-
one 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.
●When lowering the vehicle, make sure
that there is no-one near the vehicle. If
there are people nearby, warn them
vocally before lowering.
Wheel lock nut (if equipped)
NOTICE
Do not use an impact wrench. Using an
impact wrench may cause permanent
damage to wheel lock nut and wheel lock
key. If in doubt about wheel lock applica-
tion, contact your Lexus dealer.
Taking out the jack

4377-2. Steps to take in an emergency
7
When trouble arises
P.438
6 Pull out the spare tire and stand it
against the bumper.
7 Fully depress the secondary latch
and remove the holding bracket
from the hoist assembly . 8
Tilt the bracket and pass it
through the wheel opening. Then
remove the hoist assembly .
1 Chock the tires.
A
BC
WARNING
■When storing the spare tire
Be careful not to catch fingers or other
body parts between the spare tire and
the body of the vehicle.
Replacing a flat tire
B
C

4387-2. Steps to take in an emergency
2Slightly loosen the wheel nuts (one
turn).
For vehicles with wheel lock nuts, loosen
the wheel lock nut first.
3Turn the tire jack portion by
hand until the notch of the jack is in
contact with the jack point.
The jack point guides are located under
the rocker panel. They indicate the jack
point positions.
4Raise the vehicle until the tire is
slightly raised off the ground.
5 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.
■If the spare tire cannot be lowered
(RX450hL)
If the spare tire cannot be lowered, it may
not have been stowed properly. Perform the
following procedure:
1 Fully tighten the spare tire clamp bolt by
turning the jack handle clockwise until
two clicks are heard and the jack handle
skips.
Flat tireWheel chock posi-
tions
Front left-hand sideBehind the rear
right-hand side tire
Front right-hand
sideBehind the rear
left-hand side tire
Rear left-hand sideIn front of the front
right-hand side tire
Rear right-hand sideIn front of the front
left-hand side tire
A

4397-2. Steps to take in an emergency
7
When trouble arises
2Turn the jack handle counterclockwise
to lower the spare tire.
If the spare tire still cannot be lowered,
attempt to fully tighten the spare tire clamp
bolt again by turning the jack handle clock-
wise. Then turn it coun terclockwise at least
2 turns to lower the spare tire.
If the spare tire still ca nnot be lowered, the
wire cable may be seve red. Have the vehi-
cle inspected by your Lexus dealer.
1 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
WARNING
■Replacing a flat tire
●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 wheel nuts to loosen
and the tire to fall of f, 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, lead-
ing 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 an accident and
resulting in death or serious injury.
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.
• 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.
●Observe the following precautions.
(RX450hL)
Failure to do so may result in serious
injury:
• Do not try to remove the wheel orna- ment by hand. Take due care in han-
dling the ornament to avoid
unexpected personal injury.
• Lower the spare tire completely to the ground before removing it from under
the vehicle.
■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.480). Failure to
do so may cause the back door to oper-
ate unintentionally if the power back
door switch is accidentally touched,
resulting in hands and fingers being
caught and injured.
Installing the spare tire

4407-2. Steps to take in an emergency
come off.
2Install the spare tire and loosely
tighten each wheel nut by hand by
approximately the same amount.
Tighten the wheel nuts until the tapered
portion comes into loose contact with the
disc wheel seat.
Tapered portion
Disc wheel seat
3 Lower the vehicle.
4 Firmly tighten each wheel nut two
or three times in the order shown in
the illustration.
For vehicles with wheel lock nuts, tighten the wheel lock nut last.
Tightening torque:
76 ft•lbf (103 N•m, 10.5 kgf•m)
5
RX450h: Stow the flat tire, tire jack
and all tools.
RX450hL:  P.440
1 Remove the center wheel orna-
ment by pushing from the reverse
side.
Be careful not to lose the wheel ornament.
2Stand the tire against the bumper
with the inner surface facing
toward you. Pass the hoist assembly
A
B
WARNING
■Stowing the flat tire
Failure to follow st eps listed under stow-
ing the tire may result in damage to the
spare tire carrier and loss of the tire,
which could result in serious injury or
death.
Stowing the flat tire, jack and all
tools (RX450hL)

4417-2. Steps to take in an emergency
7
When trouble arises
and holding bracket through
the wheel opening.
3 Fully depress the secondary latch
and install the bracket to the
hoist assembly . 4
Lay the tire on the ground with the
outer surface (valve stem) facing
up.
5 Before raising the tire, make sure
that the hoist assembly is perpen-
dicular to the wheel opening. (Try to
place the tire directly beneath the
vehicle, near where the wire cable
is hanging from.)
Valve stem
6 Using the jack handle and adapter
socket, tighten the tire clamp bolt
by turning it clockwise until the tire
is in the correct position and two
clicks are heard as the jack handle
skips.CB
AB
C
A

4427-2. Steps to take in an emergency
7Confirm it is not loose after tighten-
ing:
1 Push and pull the tire
2 Try rotating
Visually check to ensure tire is not hung on
surrounding parts.
If looseness or misassembly exists, repeat
steps 2 to 7.
8 Repeat step 7, any time the tire is
lowered or disturbed.
9 Stow the jack and all tools.
■The compact spare tire
●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 emer-
gency.
●Make sure to check the tire inflation pres-
sure of the compact spare tire. ( P.466)
■When using the compact spare tire
As the compact spare tire is not equipped
with a tire pressure warning valve and trans-
mitter, 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.
■When the compact spare tire is
equipped
When driving with the compact spare tire
installed, the vehicle he ight will be different
than when driving with standard tires.
■If you have a flat front tire on a road cov-
ered with snow or ice
Install the compact spare tire on one of the
rear wheels of the vehicle. Perform the fol-
lowing steps and fit tire chains to the front
tires:
1 Replace a rear tire with the compact
spare tire.
2 Replace the flat front tire with the tire
removed from the rear of the vehicle.
3 Fit tire chains to the front tires.
WARNING
■When using the compact spare tire
●Remember that the compact spare tire
provided is specific ally designed for
use with your vehicle. Do not use your
compact spare tire on another vehicle.
●Do not use more than one compact
spare tire simultaneously.
●Replace the compact spare tire with a
standard tire as soon as possible.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shifting
operations that cause sudden engine
braking.
■When the compact spare tire is
attached
The vehicle speed may not be correctly
detected, and the following systems may
not operate correctly:
• ABS & Brake assist
•VSC
•TRAC
• Trailer Sway Control
•EPS
•VDIM
• Adaptive Variable Suspension System (if equipped)
• Dynamic radar cruise control with full-speed range