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475
GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Wheels
When replacing wheels, care should be taken to ensure that they are equivalent
to those removed in load capacity
, diameter, rim width, and inset
*.
Replacement wheels are available at your Lexus dealer.
*: Conventionally referred to as “offset”.
Lexus does not recommend using the following:
●Wheels of different sizes or types
●Used wheels
●Bent wheels that have been straightened
●Use only Lexus wheel nuts and wrenches designed for use with your alumi-
num wheels.
●When rotating, repairing or changing your tires, check that the wheel nuts are
still tight after driving 1000 miles (1600 km).
●Be careful not to damage the aluminum wheels when using tire chains.
●Use only Lexus genuine balance weights or equivalent and a plastic or rubber
hammer when balancing your wheels.
■When replacing wheels
The wheels of your vehicle are equipped with tire pressure warning valves and transmit-
ters that allow the tire pressure warning system to provide advance warning in the event
of a loss in tire inflation pressure. Whenever wheels are replaced, tire pressure warning
valves and transmitters must be installed. ( P. 4 6 5 )
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of handling
control.
Wheel selection
Aluminum wheel precautions
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GX460_OM_OM60K80U_(U)6-3. Do-it-yourself maintenance
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in the Owner’s
Manual, as this may result in a loss of handling control.
●Never use an inner tube in a leaking wheel which is designed for a tubeless tire. Doing
so may result in an accident,
causing death or serious injury.
■Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing an accident.
NOTICE
■Replacing tire pressure warning valves and transmitters
●Because tire repair or replacement may affect the tire pressure warning valves and
transmitters, make sure to have tires servic ed by your Lexus dealer or other qualified
service shop. In addition, make sure to pu rchase your tire pressure warning valves
and transmitters at your Lexus dealer.
●Ensure that only genuine Lexus wheels are used on your vehicle.
Tire pressure warning valves and transmitte rs may not work properly with non-genu-
ine wheels.
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GX460_OM_OM60K80U_(U)
7
When trouble arises
7-1. Essential information
If your vehicle has to be stopped in an emergency
Steadily step on the brake pedal with both feet and firmly depress it.
Do not pump the brake pedal repeatedly as this will increase the effort required to
slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehicle speed as
much as possible.
To stop the engine, press and hold
the engine switch for 2 consecutive
seconds or more, or press it briefly 3
times or more in succession.
Stop the vehicle in a safe place by the road.
Only in an emergency, such as if it becomes impossible to stop the vehicle in
the normal way, stop the vehicle using the following procedure:
1
2
3
4
3
Press and hold for 2 seconds or more,
or press briefly 3 times or more
4
CAUTION
■If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake pedal
harder to depress and the steering wheel heavier to turn. Decelerate as much as possi-
ble before turning off the engine.
5
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500
GX460_OM_OM60K80U_(U)7-2. Steps to take in an emergency
If your vehicle needs to be towed
The following may indicate a problem with your transmission. Contact your
Lexus dealer before towing.
●The engine is running but the vehicle will not move.
●The vehicle makes an abnormal sound.
If a tow truck is not available in an emergency, your vehicle may be temporarily
towed using an elastic towing rope secured to the emergency towing hooks. This
should only be attempted on hard su rfaced roads for short distances at low
speeds.
A driver must be in the vehicle to steer and operate the brakes. The vehicle’s
wheels, drive train, axles, steering an d brakes must be in good condition.
To w i n g h o o k
If towing is necessary, we recommend having your vehicle towed by your
Lexus dealer or a commercial towing service, using a lift-type truck or a flat
bed truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
Before towing
Emergency towing
Page 501 of 622
5017-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
7
When trouble arises
Do not tow with a sling type truck to
prevent body damage.
Towing with a sling-type truck
Towing with a wheel lift-type truck
From the frontFrom the rear
Use a towing dolly under the rear
wheels. Use a towing dolly under the front
wheels.
Page 502 of 622
5027-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
If your Lexus is transported by a flat bed
truck, it should be tied down at the
locations shown in the illustration.
If you use chains or cables to tie down
your vehicle, the angles shaded in black
must be 45.
Do not overly tighten the tie downs or
the vehicle may be damaged.
■Before emergency towing The engine switch must be in the ACCESSORY mode (engine off) or IGNITION ON
mode (engine running).
Put the four-wheel drive control switch in H4 and push the center differential lock/
unlock switch to unlock the center differential. ( P. 3 3 2 )
Vehicles with the rear height control air suspension: Put the vehicle height in the N
mode and press the height control OFF button to turn off the rear height control air
suspension. ( P. 3 2 7 )
Shift the shift lever in N.
Release the parking brake.
Using a flat bed truck
1
2
3
4
5
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5037-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
7
When trouble arises
CAUTION
Observe the following precautions.
Failure to do so may result in death or serious injury.
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving mane uvers which place excessive stress on the
emergency towing hook and the elastic towing rope. Always be cautious of the sur-
roundings and other vehicles while towing.
●Do not turn the engine switch off.
Doing so will lock the steering wheel and pr event operation, possibly causing an acci-
dent and resulting in death or serious injury.
●If the engine is not running, the power assist for the brakes and steering will not func-
tion, making steering and braking more difficult.
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5047-2. Steps to take in an emergency
GX460_OM_OM60K80U_(U)
NOTICE
■To prevent causing serious damage to the transmission and transfer when towing
using a wheel-lift type truck
Never tow this vehicle with any of th e wheels in contact with the ground.
■To avoid serious damage to your vehicle
■To prevent damage to the vehicle when towing using a wheel-lift type truck
When raising the vehicle, ensure adequate ground clearance for towing at the oppo-
site end of the raised vehicle. Without adequate clearance, the vehicle could be dam-
aged while being towed.
■To prevent damage to the vehicle during emergency towing
Observe the following precautions.
●Do not use cables or chains.
●Do not tow the vehicle at a speed higher than 19 mph (30 km/h) and more than a dis-
tance of 50 miles (80 km).
●Do not tow the vehicle from the rear.
●Do not secure elastic towing ropes to the suspension components.
If the vehicle is towed at a speed higher than 19 mph (30 km/h) or for more than
50 miles (80 km), or if the vehicle is towed from the rear, the transmission may be
damaged. In such cases, transport the vehicle using a flat bed truck with all four wheels
raised off the ground.
■To prevent body damage when to wing with a sling-type truck
Do not tow with a sling-type truck, either from the front or rear.
■To prevent causing serious damage to the transmission and transfer in emergency
towing
Never tow a vehicle from the rear with four wheels on the ground. This may cause seri-
ous damage to the transmission and transfer.
Do not use the rear emergency towing hook.