2020 Lexus GX460 light

GX460_OM_OM60R27U_(U)
3494-5. Using the driving support systems
4
Driving
■Operating tips
The system will operate when the shift lever is in a position other than P, however to make
effective use of the system it is recommended to select a lower shift range.
■The system will not operate when
The transfer mode is in H4.
■If the downhill assist control system indicator flashes
●In the following situations, the indicator flashes and the system will not operate:
• The transfer mode is not in L4.
• The shift lever is in P.
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds approximately 15 mph (25 km/h).
• The brake system overheats.
●In the following situations, the indicator flas hes to alert the driver, but the system will
operate:
• The shift lever is in N.
• The “DAC” switch is turned of f while the system is operating.
The system will gradually ceas es operation. The indicator will flash during operation,
and then go off when the system is fully off.
■When the downhill assist control system is operated continuously
This may cause the brake actuator to overheat. In this case, the downhill assist control
system will stop operating, a buzzer will sound and the downhill assist control system
indicator will start flashing, and the “TRAC OFF” indicator light will come on. Refrain
from using the system until the downhill assi st control system indicator stays on and
“TRAC OFF” indicator light turns off. (The vehicle can be driven normally during this
time.)
■Sounds and vibrations caused by the downhill assist control system
●A sound may be heard from the engine compartment when the engine is started or just
after the vehicle begins to move. This soun d does not indicate that a malfunction has
occurred in downhill assist control system.
●Either of the following conditions may occur when the do wnhill assist control system is
operating. None of these are indicators that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard afte r the vehicle comes to a stop.
■System malfunction
In the following cases, have your vehicle checked by your Lexus dealer.
●The downhill assist control system indicator does not come on when the engine switch
is turned to IGNITION ON mode.
●The downhill assist control system indicator does not come on when the “DAC” switch
is shifted to ON.
●The slip indicator comes on.

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
◆Active TRAC (Traction Control) for L4 position*
Helps to maintain drive power and prevent the 4 wheels from spinning when starting
the vehicle or accelerating on slippe
ry roads, or in off-road conditions
*: The function only works in vehicles with Multi-terrain Sele ct when Multi-terrain
Select is switched on
◆Hill-start assist control
Helps to prevent the vehicle from rolling back ward when starting on an incline or slip-
pery slope
◆KDSS (Kinetic Dynamic Suspension System)
KDSS helps to enhance ride comfort and hand ling response by using a hydraulic con-
trol system to control the su spension stabilizer bars in response to road surface and
driving conditions during co rnering or off-road driving
◆Trailer Sway Control
Helps the driver to control trailer sway by selectively applying brake pressure for indi-
vidual wheels and reducing driving torque when trailer sway is detected.
The slip indicator light will flash while
the TRAC/Active TRAC/VSC/ABS/
Multi Terrain ABS/Trailer Sway Control
systems are operating.
When the TRAC/Active TRAC/VSC/ABS/Multi Terrain ABS/Trailer
Sway Control systems are operating

GX460_OM_OM60R27U_(U)
3534-5. Using the driving support systems
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Driving
If the vehicle gets stuck in mud, dirt or snow, the TRAC/Active TRAC system may
reduce power from the engine to the wheels. Pressing to turn the system off
may make it easier for you to rock the vehicle in order to free it.
To turn the TRAC/Active TRAC system
off, quickly press and release .
The “TRAC OFF” indicator light will
come on.
Press again to turn the system
back on.
■Turning off TRAC/Active TRAC, VSC and Trailer Sway Control systems
To turn the TRAC/Active TRAC, VSC and Trai ler Sway Control systems off, press and
hold for more than 3 second s while the vehicle is stopped.
The “TRAC OFF” indicator light and th e VSC OFF indicator light will come on
*.
Press again to turn the systems back on.
*: Pre-collision brake assist and pre-collisio n braking will also be disabled. The PCS
warning light will come on an d the message will be shown on the multi-information dis-
play. ( P. 245)
■When the “TRAC OFF” indicator light comes on even if has not been pressed
TRAC/Active TRAC is temporary deactivated. If the indicator light continues to remain
on, contact your Lexus dealer.
■Hill-start assist control operation conditions
●The shift lever is in D or S.
●The brake pedal is not depressed.
Disabling the TRAC/Active TRAC system

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
■Sounds and vibrations caused by the ABS/Mu
lti Terrain ABS, brake assist, VSC, Trailer
Sway Control, TRAC/Active TRAC and hill-start assist control systems
●A sound may be heard from the engine compartment when the brake pedal is
depressed repeatedly, when the engine is started or just after the vehicle begins to
move. This sound does not indicate that a malfunction has occurred in any of these sys-
tems.
●Any of the following conditions may occur when the above systems are operating.
None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard also after the vehicle comes to a stop.
• The brake pedal may pulsate slightly afte r the ABS/Multi Terrain ABS is activated.
• The brake pedal may move down slightly after the ABS/Multi Terrain ABS is acti-
vated.
■Automatic reactivation of TRAC/Active TR AC, Trailer Sway Control and VSC systems
After turning the TRAC/Activ e TRAC, Trailer Sway Control and VSC systems off, the
systems will be automatically re-ena bled in the following situations:
●When the engine switch is turned off
●If only the TRAC/Active TRAC system is turned off, the TRAC/Active TRAC will turn
on when vehicle speed increases
If both the TRAC/Active TRAC and VSC syst ems are turned off, automatic re-enabling
will not occur when vehicle speed increases.
■When the brake system operates continuously
The brake actuator may overheat. In this case, the TRAC/Active TRAC and hill-start
assist control systems will stop operating, a buzzer will sound and the “TRAC OFF” indi-
cator will come on. Refrain from using the system until the message goes off. (There is no
problem with continuing normal driving.)
■If the slip indicator comes on...
It may indicate a malfunction in the TRAC /Active TRAC, VSC/Trailer Sway Control or
hill-start assist control system. Consult your Lexus dealer.
■KDSS
Some difference of vehicle height between left and right side can appear. This does not
indicate a malfunction in the KDSS system. For more information, contact your Lexus
dealer.

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Driving
WARNING
■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 wet or slick roads.
■Stopping distance when the ABS/Multi Terra in 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 vehicle in front of you, especially in the follow-
ing situations:
●When driving on dirt, grav el 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/VSC may no t operate effectively when
Directional control an d power may not be achievable wh ile driving on slippery road
surfaces, even if the TRAC/Active TRAC/VSC system is operating.
Drive the vehicle carefully 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 TRAC/Active TRAC/VSC/Tra iler Sway Control is activated
The slip indicator light flas hes. Always drive carefully.
Reckless driving may cause an accident. Exercise particular care when the indicator
light flashes.
■When the TRAC/Active TRAC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed appropriate to the road conditions. As these
are the systems to help ensure vehicle stab ility and driving force, do not turn the
TRAC/Active TRAC/VSC/Trailer Sway Co ntrol systems off unless necessary.
Trailer Sway Control is part of the VSC syst em and will not operate if VSC is turned off
or experiences a malfunction.

GX460_OM_OM60R27U_(U)
3594-5. Using the driving support systems
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Driving
■The outside rear view mirror indicators visibility
When under strong sunlight, the outside rear view mirror indicator may be difficult to
see.
■The Rear Cross Traffic Alert buzzer hearing
The Rear Cross Traffic Alert buzzer may be difficult to hear over loud noises such as high
audio volume.
■When “BSM NOT AVAILABLE”/“ BSM not available” is shown on the multi-informa-
tion display
The sensor voltage has become abnormal, water, snow mud, etc., may be built up in the
vicinity of the sensor area of bumper ( P. 360). Removing the water, snow, mud, etc.,
from the vicinity of the sensor area bumper should return it to normal. Also, the sensor
may not function normally when used in extremely hot or cold weather.
■When “CHECK BSM SYSTEM”/“Check BSM sy stem” is shown on the multi-informa-
tion display
There may be a sensor malfunction or misa ligned. Have the vehicle inspected by your
Lexus dealer.
■Certification for the Blind Spot Monitor
For vehicles sold in the U.S.A., Hawaii, Guam, Puerto Rico and Saipan
For vehicles sold in Canada

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GX460_OM_OM60R27U_(U)4-5. Using the driving support systems
WARNING
■Handling the radar sensor
One Blind Spot Monitor sensor is installed in
side the left and right side of the vehicle
rear bumper respectively. Observe the follow ing to ensure the Blind Spot Monitor can
function correctly.
●Do not subject the sensor or surrounding area on the bumper to a strong impact. If
the sensor moves even slight ly off position, the system may malfunction and vehicles
that enter the detection area may not be detected. If the sensor or surrounding area is
subject to a strong impact, always have the area inspected by your Lexus dealer.
●Do not disassemble the sensor.
●Do not attach accessories or stickers to the sensor or surrounding area on the
bumper.
●Do not modify the sensor or su rrounding area on the bumper.
●Do not paint the rear bumper any colo r other than an official Lexus color.
●If the sensor needs to be replaced, contact your Lexus dealer.
●Keep the sensor and its surrounding area on
the bumper clean at all times.

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GX460_OM_OM60R27U_(U)4-6. Driving tips
4
Driving
Winter driving tips
●Use fluids that are appropriate to
the prevailing outside temperatures.
•Engine oil
• Engine coolant
• Washer fluid
●Have a service technician inspect the condition of the battery.
●Have the vehicle fitted with four snow tires or purchase a set of tire chains for
the rear tires.
Ensure that all tires are the same size and br and, and that chains match the size of the
tires.
Perform the following according to the driving conditions:
●Do not try to forcibly open a window or move a wiper that is frozen. Pour
warm water over the frozen area to me lt the ice. Wipe away the water imme-
diately to prevent it from freezing.
●To ensure proper operation of the c limate control system fan, remove any
snow that has accumulated on the air inlet vents in front of the windshield.
●Check for and remove any excess ice or snow that may have accumulated on
the exterior lights, vehicle’s roof, chassi s, around the tires or on the brakes.
●Remove any snow or mud from the bottom of your shoes before getting in the
vehicle.
Carry out the necessary preparations an d inspections before driving the vehi-
cle in winter. Always drive the vehicle in a manner appropriate to the prevail-
ing weather conditions.
Pre-winter preparations
Before driving the vehicle