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GX 460 _O M_ OM6 0F 6 8U _(U )
3794-6. Driving tips
4
Driving
■Tire chain installation
Observe the following precautions when installing and removing chains:
●Install and remove tire chains in a safe location.
●Install tire chains on the rear tires. Do not install tire chains on the front tires.
●Install tire chains on rear tires as tightly as possible. Retighten chains after driving 1 /4 -
1 /2 mile (0.5 - 1.0 km).
●Install tire chains following the instructions provided with the tire chains.
CAUTION
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of ve hicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive in excess of 75 mph (120 km/h), regardless of the type of snow tires
being used.
●Use snow tires on all, not just some wheels.
●Do not use LDA (Lane Departure Alert) system. (if equipped)
■Driving with tire chains
Observe the following precautions to reduce the risk of accidents.
Failing to do so may result in the vehicle being unable to be driven safely, and may
cause death or serious injury.
●Do not drive in excess of the speed limit specified for the tire chains being used, or 30
mph (50 km/h), whichever is lower.
●Avoid driving on bumpy road surfaces or over potholes.
●Avoid sudden acceleration, abrupt steering, sudden braking and shifting operations
that cause sudden engine braking.
●Slow down sufficiently before entering a cu rve to ensure that vehicle control is main-
tained.
●Do not use LDA (Lane Departure Alert) system. (if equipped)
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from Lexus dealers or legitimate tire
retailers.
This is because the removal and attachment of snow tires affects the operation of the
tire pressure warning valves and transmitters.
■Fitting tire chains
The tire pressure warning valves and transmitters may not function correctly when tire
chains are fitted.
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480
GX 460 _O M_ OM6 0F 6 8U _(U )6-3. Do-it-yourself maintenance
■If the tread on snow tires wears down below 0.16 in. (4 mm)
The effectiveness of the tires as snow tires is lost.
■Situations in which the tire pressure warning system may not operate properly
●In the following cases, the tire pressure warning system may not operate properly.
• If non-genuine Lexus wheels are used.
• A tire has been replaced with a tire that is not an OE (Original Equipment) tire.
• A tire has been replaced with a tire that is not of the specified size.
• Tire chains etc. are equipped.
• An auxiliary-supported run-flat tire is equipped.
• If a window tint that affects the radio wave signals is installed.
• If there is a lot of snow or ice on the vehicle, particularly around the wheels or wheel
housings.
• If the tire inflation pressure is extremely higher than the specified level.
• If the spare tire is in a location subject to poor radio wave signal reception.
• If a large metallic object which can interf ere with signal reception is put near the
spare tire.
• If tires not equipped with the tire pressure warning valves and transmitters are used.
• If the ID code on the tire pressure warning valves and transmitters is not registered
in the tire pressure warning computer.
●Performance may be affected in the following situations.
• Near a TV tower, electric power plant, gas station, radio station, large display, air-port or other facility that generates st rong radio waves or electrical noise
• When carrying a portable radio, cellular phone, cordless phone or other wireless
communication device
●When the vehicle is parked, the time taken for the warning to start or go off could be
extended.
●When tire inflation pressure declines rapidly for example when a tire has burst, the
warning may not function.
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635Alphabetical index
GX 460 _O M_ OM6 0F 6 8U _(U )
Door lock switches ............................ 105
Driving position memory switches ................................................ 135
Emergency flashers switch ............ 510
Engine switch ........................................ 189
Fog light switch .................................... 210
Four-wheel drive control switch.................................................... 342
Headlight cleaner switch ................ 219
Height control button ...................... 337
LDA switch .......................................... 238
Light switches ...................................... 202
Moon roof switches........................... 153
Multi-terrain Monitor switch ......... 313
Multi-terrain Select switch............ 308
“ODO TRIP” button ............................84
Outside rear view mirror switches .................................................147
Parking assist........................................ 244
PCS off switch .................................... 369
Power door lock switch .................. 105
Power window switch ...................... 150
Rear window wiper and washer switch..................................... 217
Rear window and outside rear view mirror
defoggers switch ............................. 391
Seat heater switches........................ 400
Talk switch
*
Tilt and telescopic steering control switch..................................... 143
Vehicle-to-vehicle distance button ................................................... 229
VSC OFF switch ............................... 353
Window lock switch ......................... 150
Windshield wipers and washer switch .................................... 212
Tachometer ............................................... 83
Tail lights .................................................. 202 Light switch........................................... 202
Talk switch
*
Telephone switch
*
Theft deterrent system
Alarm ...........................................................74
Engine immobilizer system .............. 72
Tire inflation pressure......................... 484 Maintenance data.............................. 578
Tires ............................................................476 Chains ......................................................377
Checking ............................................... 476
If you have a flat tire .......................... 542
Inflation pressure................................ 484
Information............................................583
Replacing ............................................... 542
Rotating tires ........................................ 476
Size ........................................................... 578
Snow tires .............................................. 379
Spare tire................................................ 542
Tire pressure warning
system ...................................................477
T
*: For vehicles with a navigation system or a multimedia system, refer to the “NAVIGATION SYSTEM OWNER’S MANUAL” or“MULTIMEDIA OWNER’S MANUAL”.
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