flat tire Lexus GX460 2010 Using The Bluetooth Audio System / LEXUS 2010 GX460 (OM60E69U) User Guide

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2-4. Using other driving systems
2
When driving
GX460_U.S.A. (OM60E69U)
CAUTION
■TRAC/Active TRAC may not operate effectively when
Directional control and power may not be achievable while driving on slippery road
surfaces, even if the TRAC/Active TRAC is operating. 
Do not drive the vehicle in conditions where stability and power may be lost.
■Hill- start assist control does not operate effectively when
Do not overly rely on the hill-start assist co ntrol. The hill-start assist control may not
operate effectively on steep incl ines and roads covered with ice.
■When the VSC is activated
The slip indicator light flashes and a warning buzzer sounds. Always drive carefully. 
Reckless driving may cause an accident. Ex ercise particular care when the indica-
tor light flashes and a buzzer sounds.
■When the TRAC or Active TRAC/VSC systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As
these are the systems to ensure vehicle stability and driving force, do not turn the
TRAC or Active TRAC/VSC systems off unless necessary.
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load
capacity. In addition, make sure that the tires are inflated to the recommended tire
inflation pressure level.
The ABS/Multi Terrain ABS and VSC systems will not function correctly if different
tires are installed on the vehicle. 
Contact your Lexus dealer for further info rmation when replacing tires or wheels.

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2-5. Driving information
GX460_U.S.A. (OM60E69U)
■Before towing
Check that the following conditions are met:
●The vehicle’s tires are properly inflated. (P. 76 0 )
●Trailer tires are inflated according to the trailer manufacturer’s recommenda-
tion.
●All trailer lights work.
●All lights work each time you connect them.
●The trailer ball is set up at the proper height for the coupler on the trailer.
●The vehicle remains level when a loaded or unloaded trailer is hitched. Do not
drive if the vehicle is not level, and check for improper tongue load, overloading,
worn suspension, or other possible causes.
●The trailer cargo is securely loaded.
●The rear view mirrors conform to all applicable federal, state/provincial or local
regulations. If they do not, install rear view mirrors appropriate for towing pur-
poses.

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3-7. Other interior features
GX460_U.S.A. (OM60E69U)■
Stolen Vehicle Location
If your vehicle is stolen, Safety Co nnect can work with local authorities
to assist them in locating and recovering the vehicle. After filing a
police report, call the Safety Conn ect response center at 1-800-25-
LEXUS (1-800-255-3987) and follo w the prompts for Safety Con-
nect to initiate this service.
In addition to assisting law enforcemen t with recovery of a stolen vehi-
cle, Safety-Connect-equipped vehicl e location data may, under cer-
tain circumstances, be shared with th ird parties to locate your vehicle.
Further information is available at Lexus.com.
■ Emergency Assistance Button (“SOS”)
In the event of an emergency on th e road, push the “SOS” button to
reach the Safety Connect response center. The answering agent will
determine your vehicle’s location, as sess the emergency, and dispatch
the necessary assistance required.
If you accidentally press the “SOS” button, tell the resp onse-center agent
that you are not experiencing an emergency.
■ Enhanced Roadside Assistance
Enhanced Roadside Assistance ad ds GPS data to the already
included warranty-based Lexus roadside service. 
Subscribers can press the “SOS” button to reach a Safety Connect
response-center agent, who can help wi th a wide range of needs, such
as: towing, flat tire, fuel delivery, etc. For a description of the Roadside
Assistance services and their limita tions, please see the Safety Con-
nect Terms and Conditions, which are available at Lexus.com.

Maintenance and care4
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GX460_U.S.A. (OM60E69U)
4-1. Maintenance and careCleaning and protecting 
the vehicle exterior............ 588
Cleaning and protecting 
the vehicle interior .............. 592 4-2. Maintenance
Maintenance 
requirements........................ 595
General maintenance ........... 597
Emission inspection and 
maintenance (I/M) 
programs ................................ 601
4-3. Do-it-yourself maintenance Do-it-yourself service 
precautions ........................... 602
Hood .......................................... 607
Engine compartment ........... 608
Tires............................................. 627
Tire inflation pressure........... 634
Wheels ...................................... 638
Air conditioning filter ........... 640
Electronic key battery.......... 642
Checking and replacing 
fuses ........................................ 645
Headlight aim (vehicles with low 
beam halogen bulbs) ......... 658
Light bulbs ................................ 660

600
4-2. Maintenance
GX460_U.S.A. (OM60E69U)
Vehicle exterior
ItemsCheck points
Doors• Do the doors operate smoothly?
Engine hood• Does the engine hood lock system work properly?
Fluid leaks
• There should not be any signs of fluid leakage after the vehicle has
been parked.
Ti r e
• Is the tire inflation pressure cor-
rect?
• The tires should not be damaged or excessively worn.
• Have the tires been rotated according to the maintenance
schedule?
• The wheel nuts should not be loose.
CAUTION
■If the engine is running
Turn off the engine and ensure that there is adequate ventilation before performing
maintenance checks.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
ItemsPa r t s a n d t o o l s
Fuses( P. 6 4 5 )• Fuse with same amperage rating as
original
Headlight aim ( P. 6 5 8 )• Phillips-head screwdriver
Light bulbs( P. 6 6 0 )
• Bulb with same number and watt-
age rating as original
• Phillips-head screwdriver
•Flathead screwdriver
•Wrench
Power steering fluid level 
( P. 6 2 0 )
• Automatic transmission fluid
DEXRON® II or III
•Rag or paper towel
• Clean funnel
Radiator and condenser ( P. 6 1 7 )
Tire inflation pressure ( P. 6 3 4 )• Tire pressure gauge
• Compressed air source
Wa s h e r f l u i d ( P. 6 2 6 )
• Water washer fluid containing anti-
freeze (for winter use)
• Funnel (used only for adding water or washer fluid)

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
■When to replace your vehicle’s tires
Tires should be replaced if:
●You have tire damage such as cuts, splits, cracks deep enough to expose the
fabric or bulges indicating internal damage
●A tire goes flat repeatedly or cannot be properly repaired due to the size or
location of a cut or other damage
If you are not sure, consult with your Lexus dealer.
■Replacing tires and wheels
If the ID code of the tire pressure warn ing valve and transmitter is not registered,
the tire pressure warning system will not work properly. After driving for about 20
minutes, the tire pressure warning light comes on after blinking for 1 minute to indi-
cate a system malfunction.
■Tire life
Any tire over 6 years old must be checked by a qualified technician even if they
have seldom or never been used or damage is not obvious.
■If the tread on snow tires wears down below 0.16 in. (4 mm) on snow tires
The effectiveness of the tire as snow tires is lost.
■Maximum load of tire
Check that the number given by dividing the maximum load by 1.10 of the replace-
ment tire is greater than 1 /2 of the Gros s Axle Weight Ratings (GAWR) of either
the front axle or the rear axle, whichever is greater.
For the GAWR, see the Certification Label. 
For the maximum load of the tire, see the load
limit at maximum cold tire inflation pressure
mentioned on the sidewall of the tire. 
(  P. 76 5 )

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
’■Tire types
1 Summer tiresSummer tires are high-speed performance tires best suited to highway driving
under dry conditions. Since summer tires do not have the same traction perfor-
mance as snow tires, summer tires are in adequate for driving on snow-covered
or icy roads. For driving on snow-covered roads or icy roads, the use of snow tires
is recommended. When installing snow tires, be sure to replace all four tires.
2 All season tires All season tires are designed to provide better traction in snow and to be ade-
quate for driving in most winter conditions , as well as for use year round. All sea-
son tires, however, do not have adequa te traction performance compared with
snow tires in heavy or loos e snow. Also, all season tires fall short in acceleration
and handling performance compared with summer tires in highway driving.
3Snow tires For driving on snow-covered roads or icy roads, we recommend using snow tires.
If you need snow tires, select tires of the same size, construction and load capac-
ity as the originally installed tires. Since your vehicle has radial tires as original
equipment, make sure your snow tires also have radial construction. Do not install
studded tires without first checking loca l regulations for possible restriction.
Snow tires should be installed on all wheels. ( P. 3 6 1 )
■Routine tire inflation pressure checks
The tire pressure warning system does not replace routine tire inflation pressure
checks. Make sure to check tire inflation pressure as part of your routine of daily
vehicle checks.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
GX460_U.S.A. (OM60E69U)
NOTICE
■Repairing or replacing tires, wheels and tire pressure warning valves and trans-
mitters
When removing or fitting the wheels, tire s or the tire pressure warning valve and
transmitter, contact your Lexus dealer as the tire pressure warning valve and trans-
mitter may be damaged if not handled correctly.
■To avoid damaging the tire pressu re warning valves and transmitters
Do not use liquid sealants on flat tires.
■Driving on rough roads
Take particular care when driving on roads with loose surfaces or potholes. 
These conditions may cause losses in tire inflation pressure, reducing the cushion-
ing ability of the tires. In addition driving on rough roads may cause damage to the
tires themselves, as well as the vehicle’s wheels and body.
■If tire inflation pressures become low while driving
Do not continue driving, or your tires and/or wheels may be ruined.

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4-3. Do-it-yourself maintenance
GX460_U.S.A. (OM60E69U)
Tire inflation pressure
■Tire inflation pressure
The recommended cold tire inflation pressure and tire size is dis-
played on the tire and loading information label. ( P. 760)