air suspension Lexus GX460 2013 Owner's Manual

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2-1. Driving proceduresDriving the vehicle ......................... 172
Engine (ignition) switch .............. 183
Automatic transmission.............. 190
Turn signal lever ............................ 196
Parking brake ................................. 197
Horn.................................................... 198
2-2. Instrument cluster Gauges and meters ..................... 199
Indicators and warning lights................................................ 202
Multi-information display (Optitron meters) .................... 208
Multi-information display (Accessory meters)................... 216
2-3. Operating the lights and windshield wipers
Headlight switch ........................... 223
Automatic High Beam .............. 230
Fog light switch ............................. 237
Windshield wipers and washer............................................ 240
Rear window wiper and washer............................................ 246
Headlight cleaner switch .......... 249 2-4. Using other driving systems
Cruise control .............................. 250
Dynamic radar cruise control............................................ 254
Intuitive parking assist ................ 270
LDA (Lane Departure Alert) .............................................. 279
Rear view monitor system ....... 285
Wide view front & side monitor .......................................... 290
Multi-terrain Select .................... 300
Multi-terrain Monitor ................ 308
Rear height control air suspension ................................... 320
AVS (Adaptive Variable Suspension System) ................. 325
Four-wheel drive system........... 326
Crawl Control ............................... 332
DAC (Downhill Assist Control system) ......................... 336
Driving assist systems................. 339
PCS (Pre-Collision System).......................................... 347
2-5. Driving information Off-road precautions ................ 358
Cargo and luggage ..................... 363
Vehicle load limits........................ 369
Winter driving tips ........................ 371
Trailer towing ................................. 375
Dinghy towing ............................... 394
2When driving
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1-7. Safety information
GX460_OM_OM60J63U_(U)
CAUTION
■Modification and disposal of SRS airbag system components
Do not dispose of your vehicle or perform any of the following modifications with-
out consulting your Lexus dealer. The SRS airbag may malfunction or deploy
(inflate) accidentally, causing death or serious injury.
●Installation, removal, disassembly and repair of the SRS airbags
●Repairs, modifications, removal or replacement of the steering wheel, instrument
panel, dashboard, seats or seat upholstery, front, center and rear pillars or roof
side rail
●Repairs or modifications of the front fender, front bumper, or side of the occupant
compartment
●Installation of snow plows, winches, etc. to the front grille (bull bars or kangaroo
bar etc.)
●Modifications to the vehicle’s suspension system
●Installation of electronic devices such as mobile two-way radios and CD players
●Modifications to your vehicle for a person with a physical disability
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2-4. Using other driving systemsCruise control ........................ 250
Dynamic radar cruise control .................................... 254
Intuitive parking assist .......... 270
LDA (Lane Departure Alert)....................................... 279
Rear view monitor system .................................... 285
Wide view front & side monitor ................................... 290
Multi-terrain Select ............. 300
Multi-terrain Monitor.......... 308
Rear height control air suspension ............................ 320
AVS (Adaptive Variable Suspension System)........... 325
Four-wheel drive system ...... 326
Crawl Control ........................ 332
DAC (Downhill Assist Control system) ................... 336
Driving assist systems ........... 339
PCS (Pre-Collision System) ................................... 347 2-5. Driving information
Off-road precautions ........... 358
Cargo and luggage ............... 363
Vehicle load limits .................. 369
Winter driving tips .................. 371
Trailer towing .......................... 375
Dinghy towing......................... 394
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2-2. Instrument cluster
Gauges and meters
Tachometer
Displays the engine speed in revolutions per minute.
Engine coolant temperature gauge
Displays the engine coolant temperature.
Multi-information display
→P. 2 0 8
Fuel gauge
Displays the quantity of fuel remaining in the tank.
Speedometer
Displays the vehicle speed.
Rear height control air suspension display (if equipped)
→P. 3 2 0
Shift position and shift range display
→P. 1 9 0
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2-4. Using other driving systems
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■Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect the
ability of a sensor to correctly detect an obstacle. Particular instances where this
may occur are listed below.
• There is dirt, snow or ice on a sensor.
•A sensor is frozen.
• A sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle engines,air brakes of large vehicles, or other loud noises producing ultrasonic waves.
• There is another vehicle equipped with parking assist sensors in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• Towing eyelets are installed.
• A bumper or sensor receives a strong impact.
• The vehicle is approaching a tall or right-angled curb.
• In harsh sunlight or intense cold weather.
• A non-genuine Lexus suspension (lowered suspension etc.) is installed.
In addition to the examples above, there are instances in which, because of their
shape, signs and other objects may be judged by a sensor to be closer than they
are.
●The shape of the obstacle may prevent a sensor from detecting it. Pay particular
attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb sound waves
• Sharply-angled objects
•Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction of your vehicle
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2-4. Using other driving systems
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CAUTION
■Turn the LDA off while driving in any of the following situations
Do not use LDA in any of the following situations.
Otherwise, the system may not function correctly and could result in an accident.
●When driving with snow tires, tire chains, a spare tire, or similar equipment.
●When driving with non-standard parts or aftermarket equipment installed
(including modified tires and suspensions, etc.).
●When towing a trailer.
●When there are objects or structures along the roadside that might be misinter-
preted as lane markers (such as guardrails, curbs, reflector posts, etc.).
●When there is snow in the wheel tracks of the road.
●When there are shadows on the road running parallel with lane markers, or if a
shadow is covering the lane markers.
●When there are visible lines on the pavement from road repairs, or if the remains
of old lane markers are still visible on the road.
●When driving in a lane other than the driving or passing lanes on a freeway or
highway.
●When driving on a road with lane closures due to maintenance, or when driving
in a temporary lane.
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2-4. Using other driving systems
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Rear height control air suspension∗
Selecting vehicle heightOperating the switch changes vehicle rear height as follows: Higher
Lower
Vehicle height can be adjusted
only when the engine is running.
The selected height mode will be
shown on the rear height control
air suspension display.
The selected mode will flash while
the height mode is being changed.
∗: If equipped
The rear height control air suspension allows the driver to control vehicle
rear height in order to adjust driving conditions. Select the desired height
with the height control switch.
Height control OFF switch
Height control switch
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2-4. Using other driving systems
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Height modes
● N mode (normal mode): For ordinary driving
Normal height
● HI mode (high mode): For driving on bumpy roads
1.6 in. (40 mm) higher than the normal rear height
HI mode cannot be selected when vehicle speed exceeds 18 mph
(30 km/h).
● LO mode (low mode): For the ease of egress/ingress and loading
luggage
0.8 in. (20 mm) lower than the normal rear height
LO mode cannot be selected when vehicle speed exceeds 7 mph
(12 km/h).
Disabling the height control
When the height control OFF
switch is pressed with the vehicle
stopped, the vehicle height is fixed
at the current height.
This status is memorized in the sys-
tem even after the engine is
stopped.
The height can be adjusted by
pressing the height control OFF
switch again.
When vehicle speed exceeds
18 mph (30 km/h), the rear height
control air suspension turns on
automatically.
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2-4. Using other driving systems
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■When HI mode is selected
The vehicle height will change to N mode when driving at the speeds of 18 mph (30
km/h).
Even if vehicle speed is then reduced to under 18 mph (30 km/h), height will not
return to HI mode.
■When LO mode is selected
The vehicle height will change to N mode when vehicle speed exceeds 7 mph
(12 km/h).
Even if vehicle speed is then reduced to under 7 mph (12 km/h), height will not
return to LO mode.
■Automatic leveling function
Regardless of the number of occupants and the luggage load, vehicle height in any
mode is always adjusted to a fixed height by the automatic leveling function.
■The rear height control air suspension will not operate in the following cases:
●The underbody of the vehicle is touching the surface of the road.
●The area around the suspension is covered with ice.
■Even if you hear an operating noise
This does not indicate a problem in the rear height control air suspension.
■Parking and stopping tips
●If you immediately stop the engine after off-road driving, or park the vehicle for
a long time, the vehicle height may gradually lower. When parking, make sure
there is nothing under the vehicle that may come in contact with the underbody.
The vehicle will return to the set height when the engine is started.
●The vehicle height may change as the temperature changes when the engine is
stopped. The vehicle will return to the set height when the engine is started.
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2-4. Using other driving systems
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■When lowering the vehicle
In order to prevent the vehicle height from rising as occupants leave the vehicle,
lowering control will occur for a short while after the engine has been stopped.
■The rear height control air suspension failure warning
●If a malfunction occurs in the rear height control air suspension, N mode is auto-
matically selected. However, the system may not switch to N mode depending
on the location of the malfunction.
●The warning message is displayed on the multi-information display, and the rear
height control air suspension cannot be activated until the malfunction is cor-
rected.
Stop the engine and start it again. If the warning message turns off, the system is
operating correctly. If the warning message continues to be displayed, have
your vehicle inspected by your Lexus dealer as soon as possible.
CAUTION
■The rear height control air suspension must be turned off
Be sure to observe the following precautions. Otherwise, the automatic leveling
function may cause vehicle height to change, and you may catch part of your body
in the vehicle, resulting in an accident:
●When jacking up the vehicle, installing tire chains or tying the vehicle with chains/
wires for transportation via flat bed truck, turn off the rear height control air sus-
pension and stop the engine.
●When the vehicle must be towed or disconnecting a trailer, put the vehicle height
in N mode and turn off the rear height control air suspension.
●When the vehicle is stuck, turn off the rear height control air suspension.
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