2015 Lexus GX460 ABS

GX460_OM_OM60L72U_(U)
3494-5. Using the driving support systems
4
Driving
CAUTION
■The ABS/Multi Terrain ABS does not operate effectively when
●The limits of tire gripping performance have been exceeded (such as excessively
worn tires on a snow covered road).
●The vehicle hydroplanes while driving at high speed on the wet or slick road.
■Stopping distance when the ABS/Multi Terrain ABS is operating may exceed that of
normal conditions
The ABS/Multi Terrain ABS is not designed to shorten the vehicle’s stopping distance.
Always maintain a safe distance from the vehicl e in front of you, especially in the follow-
ing situations:
●When driving on dirt, gravel or snow-covered roads
●When driving with tire chains
●When driving over bumps in the road
●When driving over roads with potholes or uneven surfaces
■TRAC/Active TRAC may not operate effectively when
Directional control and power may not be achievable while drivin g on slippery road
surfaces, even if the TRAC/Active TRAC system 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 control. The hill-start assist control may not
operate effectively on steep inclines and roads covered with ice.
■When the VSC/Trailer Sway Control is activated
The slip indicator light flashes and a warn ing buzzer sounds. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indicator
light flashes and a buzzer sounds.
■When the TRAC or Active TRAC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed ap propriate to the road conditions. As these
are the systems to help ensure vehicle stab ility and driving force, do not turn the TRAC
or Active TRAC/VSC/Trailer Sway Control systems off unless necessary.

350
GX460_OM_OM60L72U_(U)4-5. Using the driving support systems
CAUTION
■Replacing tires
Make sure that all tires are of the same size, brand, tread pattern and total load capac-
ity. In addition, make sure that the tires are inflated to the recommended tire inflation
pressure level.
The ABS/Multi Terrain ABS, TRAC/Active
TRAC and VSC/Trailer Sway Control will
not function correctly if different tires are installed on the vehicle.
Contact your Lexus dealer for further information when replacing tires or wheels.
■Handling of tires and the suspension
Using tires with any kind of problem or modi fying the suspension will affect the driving
assist systems, and may caus e the system to malfunction.
■Trailer Sway Control precaution
The Trailer Sway Control system is not able to reduce trailer sway in all situations.
Depending on many factors such as the condit ions of the vehicle, trailer, road surface,
and driving environment, the Trailer Sway Co ntrol system may not be effective. Refer to
your trailer owner’s manual for information on how to tow your trailer properly.
■If trailer sway occurs
Observe the following precautions.
Failing to do so may caus e death or serious injury.
●Firmly grip the steering wh eel. Steer straight ahead.
Do not try to control trailer swaying by turning the steering wheel.
●Begin releasing the accelera tor pedal immediately but very gradually to reduce
speed.
Do not increase speed. Do not apply vehicle brakes.
If you make no extreme correction with the steering or brakes, your vehicle and trailer
should stabilize. ( P. 1 8 0 )

368
GX460_OM_OM60L72U_(U)4-5. Using the driving support systems
CAUTION
■Limitations of the pre-collision system
Do not overly rely on the pre-collision system. Always drive safely, taking care to
observe your surroundings and checking for any obstacles or other road hazards.
Failure to do so may cause an accident resulting in death or serious injury.
■Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-
collision system is intended to assist the
driver in avoiding collisions through the process of LOOK-JUDGE-ACT. There are
limits to the degree of assistance the system can provide, so please keep in mind the
following important points.
●Assisting the driver in watching the road
The pre-collision system is only able to detect obstacles directly in front of the vehicle,
and only within a limited range. It is not a mechanism that allows careless or inatten-
tive driving, and it is not a system that can assist the driver in low-visibility conditions. It
is still necessary for the driver to pay cl ose attention to the vehicle’s surroundings.
●Assisting the driver in making correct judgment
When attempting to estimate the possibility of a collision, the only data available to
the pre-collision system is that from obstacle s it has detected directly in front of the
vehicle. Therefore, it is absolutely necess ary for the driver to remain vigilant and to
determine whether or not there is a possib ility of collision in any given situation.
●Assisting the driver in taking action
The pre-collision system’s braking assist feat ure is designed to help reduce the sever-
ity of a collision, and so only acts when the system has judged that a collision is
unavoidable. This system by itself is not capable of automatically avoiding a collision
or bringing the vehicle to a stop safety. Fo r this reason, when encountering a danger-
ous situation the driver must take direct and immediate action in order to ensure the
safety of all involved.

462
GX460_OM_OM60L72U_(U)6-3. Do-it-yourself maintenance
■Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use only
newly opened brake fluid.
CAUTION
■When filling the reservoir
Take care because brake fluid can harm yo
ur hands or eyes and damage painted sur-
faces. If fluid gets on your eyes, flush the affected area with clean water immediately. If
you still experience discomfort, see a doctor.
NOTICE
■If the fluid level is low or high
It is normal for the brake fluid level to go down slightly as the brake pads wear or when
the fluid level in the accumulator is high. If the reservoir needs frequent refilling, it may
indicate a serious problem.

GX460_OM_OM60L72U_(U)
4936-3. Do-it-yourself maintenance
6
Maintenance and care
Replace the light bulb, and install
the bulb base.
Align the 3 tabs on the light bulb with
the mounting, and insert.
Turn and secure the bulb base.
Shake the bulb base gently to check
that it is not loose, turn the headlights
on once and visually confirm that no
light is leaking through the mounting.
When installing the cover, conduct in reverse.
4
5
61

511
GX460_OM_OM60L72U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer
sounds
Calmly perform the following actions if any of the warning lights comes on or
flashes. If a light comes on or flashes, but then goes off, this does not necessar-
ily indicate a malfunction in the system. However, if this continues to occur,
have the vehicle inspected by your Lexus dealer.
Warning light and warning buzzer list
Warning lightWarning light/Details/Actions
(U.S.A.)
(Canada)
Brake system warning light (warning buzzer) Indicates that:
• The brake fluid level is low; or
• The brake system is malfunctioning.
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer. Continuing to drive the vehicle may be dangerous.
Charging system warning light
Indicates a malfunction in the vehicle’s charging system
 Immediately stop the vehicle in a safe place and contact your
Lexus dealer.
(U.S.A.)
(Canada)
Malfunction indicator lamp Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
 Have the vehicle inspected by your Lexus dealer immediately.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
 Have the vehicle inspected by your Lexus dealer immediately.
(U.S.A.)
(Canada)
ABS warning light Indicates a malfunction in:
• The ABS; or
• The brake assist system
 Have the vehicle inspected by your Lexus dealer immediately.

5167-2. Steps to take in an emergency
GX460_OM_OM60L72U_(U)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact your Lexus dealer. The vehi-
cle will become extremely unstable during braking, and the ABS system may fail, which
could cause an accident resulting in death or serious injury.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of vehi-
cle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pressure
immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If the tire is flat, change to
the spare tire and have the flat tire repaired by the nearest Lexus dealer.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could lose
control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.

618Alphabetical index
GX460_OM_OM60L72U_(U)
Alphabetical index
A/C ................................................ 380, 390Air conditioning filter......................... 481
ABS (Anti-lock Brake System)....... 345 Function ..................................................345
Warning light .......................................... 511
Active Traction Control .................... 346
Air conditioning filter ........................... 481
Air conditioning system ......... 380, 390 Air conditioning filter......................... 481
Micro dust and pollen filter .......... 385
Airbags ........................................................ 34 Airbag operating conditions ........... 42
Airbag precautions for your child........................................ 37
Airbag warning light ............................ 511
Correct driving posture .................... 26
Curtain shield airbag operating conditions........................ 42
Curtain shield airbag precautions ........................................... 37
General airbag precautions............ 37
Locations of airbags ............................ 34
Modification and disposal of airbags ..............................41
Side airbag operating conditions .............................................. 42
Side airbag precautions..................... 37
Side and curtain shield airbags operating conditions........................ 42
Side and curtain shield airbags precautions ........................................... 37
SRS airbags.............................................. 34
SRS warning light.................................. 511
Alarm Alarm........................................................... 70
Warning buzzer .................................... 511 Anchor brackets....................................... 57
Antennas (smart access system
with push-button start) ........................ 111
Anti-lock brake system (ABS) ..................................................... 345 Function .................................................. 345
Warning light .......................................... 511
Armrest ...................................................... 421
Assist grip .................................................422
Audio input
*
Audio system*
Automatic headlight leveling system .....................................198
Automatic High Beam ......................... 199
Automatic light control system ........ 196
Automatic transmission.......................190 If the shift lever cannot be shifted from P ...................................548
S mode...................................................... 192
AUX port
*
Auxiliary boxes ..................................... 404
AVS ........................................................... 335
Back door ................................................... 101
Back-up lights Replacing light bulbs ....................... 497
Wattage ................................................... 571
Battery .......................................................464 Battery checking ................................ 464
If the vehicle battery is discharged......................................... 552
Preparing and checking before winter ...................................... 371
Warning light .......................................... 511
Bluetooth
®*
A
B