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636
4-3. Do-it-yourself maintenance
GX460_OM_OM60J63U_(U)
Tires
Replace or rotate tires in accordance with maintenance schedules and
treadwear.
■Checking tires
New tread
Treadwear indicator
Worn tread
The location of treadwear indi-
cators is shown by the “TWI” or
“∆ ” marks, etc., molded on the
sidewall of each tire.
Check spare tire condition and
pressure if not rotated.
■ Tire rotation
Rotate the tires in the order
shown.
To equalize tire wear and extend
tire life, Lexus recommends that
tire rotation is carried out at the
same interval as tire inspection.
■The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure warning valves and transmitters to detect low tire infla-
tion pressure before serious problems arise. ( →P. 6 9 8 )
Front
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5
When trouble arises
701
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
The tire pressure warning system may become inoperative in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings.
●If non-genuine Lexus wheels are used. (Even if you use genuine Lexus wheels,
the tire pressure warning system may not work properly with some types of
tires.)
●If tire chains are used.
●If the spare tire is in a location subject to poor radio wave signal reception.
● If a large metallic object which can interfere with signal reception is put in the
luggage compartment.
■If the tire pressure warning light comes on after blinking for 1 minute frequently
If the tire pressure warning light comes on after blinking for 1 minute frequently
when the engine switch is turned to the “ON” position, have it checked by your
Lexus dealer.
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5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
If you have a flat tire
Remove the flat tire and replace it with the spare provided.
■Before jacking up the vehicle
●Stop the vehicle on a hard, flat surface.
● Set the parking brake.
● Shift the shift lever to P.
● Vehicles with rear height control air suspension: Turn off the
height control. ( →P. 320)
● Stop the engine.
● Turn on the emergency flashers. (→ P. 6 8 4 )
■ Location of the spare tire, jack and tools
Spare tire
Jack
Tool box
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738
5-2. Steps to take in an emergency
GX460_OM_OM60J63U_(U)
CAUTION
■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 off, resulting in death or serious injury.
• Lower the spare tire completely to the ground before removing it from underthe vehicle.
• Do not try to remove the wheel ornament by hand. Take due care in handling the ornament to avoid unexpected personal injury.
• Have the wheel nuts tightened with a torque wrench to 83 ft•lbf (112 N•m, 11.4 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.
• When installing the wheel nuts, be sure to install them with the tapered ends facing inward. ( →P. 6 4 8 )
■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
braking.
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834
Alphabetical index
GX460_OM_OM60J63U_(U)
SeatsAdjustment................................67, 71, 82
Adjustment precautions ....................... 70, 80, 85
Child seats/child restraint system installation ........................... 155
Cleaning.................................................. 601
Driver’s seat position memory....... 82
Folding down the second seatbacks ...................................... 73, 74
Folding down the third seats .......... 76
Head restraint......................................... 86
Properly sitting in the seat ............... 124
Seat heaters .......................................... 557
Seat position memory ........................ 82
Ventilated seats .................................. 557
Service reminder indicators ............202
Shift lever Automatic transmission................... 190
If the shift lever cannot be shifted from P ....................................742
Shift lever lighting .................................525
Shift lock system .................................... 742
Side airbags.............................................. 126
Side marker lights Replacing light bulbs............ 675, 677
Switch ...................................................... 223
Wattage.................................................. 769 Side mirror
Adjusting and folding ..........................101
Mirror position memory ....................82
Side turn signal lights
Replacing light bulbs .......................680
Smart access system with
push-button startAntenna location ...................................34
Entry functions ......................................... 31
Starting the engine.............................. 183
Spare tire Inflation pressure ............................... 768
Storage location .................................726
Spark plug ............................................... 763
Specifications ......................................... 758
Speedometer ...........................................199
Steering Column lock release ......................... 187
Fluid .......................................................... 768
Steering wheel
Adjustment ............................................... 97
Audio switches ................................... 466
Heated steering wheel ................... 555
Steering wheel position memory ..................................................82
Stop light
Replacing light bulbs .......................680
Storage feature ..................................... 529
Stuck If your vehicle becomes stuck .....752
Sun visors ................................................. 544
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