vehicle height control Lexus GX460 2021 Owner's Manual /

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GX460_OM_OM60T19U_(U)
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4-1. Before driving Driving the vehicle ..................... 168
Cargo and luggage .................... 176
Vehicle load limits ...................... 180
Trailer towing (with towing hitch) ..................... 181
Dinghy towing ...............................199
4-2. Driving procedures Engine (ign ition) switch ...........200
Automatic transmission .......... 206
Turn signal lever ............................ 211
Parking brake ................................ 212
4-3. Operating the lights and wipers
Headlight switch ..........................213
Automatic High Beam...............216
Fog light switch .............................221
Windshield wipers and washer ......................................... 222
Rear window wiper and washer ......................................... 226
Headlight cleaner switch........ 228
4-4. Refueling Opening the fuel tank cap ..... 229 4-5. Using the driving support
systems
Lexus Safety System + ............. 233
PCS (Pre-Collision System) ....................................... 239
LDA (Lane Departure Alert) ............................................ 250
Dynamic radar cruise control ......................................... 258
Intuitive parking assist.............. 270
Rear view monitor system...... 278
Multi-terrain Select...................288
Multi-terrain Monitor............... 292
Rear height control air suspension ................................. 339
AVS (Adaptive Variable Suspension System) .............. 343
Four-wheel drive system ........ 344
Crawl Control............................. 348
Downhill assist control system.......................................... 352
Driving assist systems .............. 355
BSM (Blind Spot Monitor).......361 • The Blind Spot Monitor function .................................... 366
• The Rear Cross Traffic Alert function......................... 369
4-6. Driving tips Winter driving tips..................... 374
Off-road precautions................377
4Driving

GX460_OM_OM60T19U_(U)
912. Instrument cluster
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Instrument cluster
Odometer, trip meter and maintenance required information display
Odometer:
Displays the total distance the vehicle has been driven
Trip meter:
Displays the distance the vehicle has been driven since the meter was last reset. Trip
meters A and B can be used to record an d display different distances independently.
Maintenance required information: • Displays the maintenance requ ired information when the engine switch is in IGNI-
TION ON mode.
• It can be reset from of th e multi-information display. (P. 93)
Rear height control air suspension display (if equipped)
Displays the rear height mode selected ( P. 339)
Switches between odometer, trip meter
and maintenance required information
displays. When the trip meter is dis-
played, pressing and holding the button
will reset the trip meter.
The brightness of the instrument cluster lights can be adjusted.
Brighter
Darker
Changing the display
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Instrument cluster light control switch
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GX460_OM_OM60T19U_(U)
4Driving
4-1. Before drivingDriving the vehicle ...................... 168
Cargo and luggage .................... 176
Vehicle load limits .......................180
Trailer towing (with towing hitch) .................... 181
Dinghy towing .............................. 199
4-2. Driving procedures Engine (ignition) switch .......... 200
Automatic transmission.......... 206
Turn signal lever.............................211
Parking brake ............................... 212
4-3. Operating the lights and wipers
Headlight switch .......................... 213
Automatic High Beam .............. 216
Fog light switch ............................ 221
Windshield wipers and washer.......................................... 222
Rear window wiper and washer.......................................... 226
Headlight cleaner switch ........228
4-4. Refueling Opening the fuel tank cap......229 4-5. Using the driving support
systems
Lexus Safety System + ............. 233
PCS (Pre-Collision System)........................................ 239
LDA (Lane Departure Alert) ............................................250
Dynamic radar cruise control .........................................258
Intuitive parking assist .............. 270
Rear view monitor system ...... 278
Multi-terrain Select .................. 288
Multi-terrain Monitor ............... 292
Rear height control air suspension ................................. 339
AVS (Adaptive Variable Suspension System)............... 343
Four-wheel drive system ........ 344
Crawl Control .............................348
Downhill assist control system .......................................... 352
Driving assist systems ..............355
BSM (Blind Spot Monitor) ...... 361 • The Blind Spot Monitor function .................................... 366
• The Rear Cross Traffic Alert function ......................... 369
4-6. Driving tips Winter driving tips ..................... 374
Off-road precautions ............... 377

GX460_OM_OM60T19U_(U)
1894-1. Before driving
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Driving
Vehicles without rear height control
air suspension
Weight carrying ball position:
50.4 in. (1280.6 mm)
*
Hitch receiver pin hole position:
41.1 in. (1044.2 mm)
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Vehicles with rear height control air
suspension
Weight carrying ball position: 50.5 in. (1282.7 mm)
*
Hitch receiver pin hole position: 41.2 in. (1046.6 mm)*
*
: Unladen vehicles
Use the wire harness stored in the rear
end under the vehicle body.
Please consult your dealer when installin g trailer lights, as incorrect installation
may cause damage to the vehicle’s lights. Please take care to comply with your
state’s laws when installing trailer lights.
Positions for towing hitch receiver and hitch ball
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Connecting trailer lights
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GX460_OM_OM60T19U_(U)4-1. Before driving
Stop your vehicle and a trailer
in line and perform the following:
●Connecting a trailer
Set the rear height control air su spension (if equipped) to N mode.
Turn off the engine switch or the re ar height control air suspension (if
equipped).
Connect the trailer.
Turn on the switch that was turned off on step .
●Disconnecting a trailer
Set the rear height control air su spension (if equipped) to N mode.
Turn off the rear height control air suspension (if equipped).
Turn off the engine switch.
Set the supporting leg of the trailer on the ground and raise the hitch by
4 in. (100 mm)
Turn on the engine switch.
Turn on the rear height control air suspension (if equipped).
Wait until vehicle height is stabilized.
Make sure the hitch is disconnected. If the hitch does not disconnect, raise the
hitch higher and repeat steps through .
Connecting and disconnecting a trailer
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GX460_OM_OM60T19U_(U)4-1. Before driving
●After the trailer sw
aying has stopped:
• Stop in a safe place. Get all occupants out of the vehicle.
• Check the tires of the vehicle and the trailer.
• Check the load in the trailer. Make sure the load has not shifted.
Make sure the tongue weight is appropriate, if possible.
• Check the load in the vehicle. Make sure the vehicle is not ov erloaded after occupants get in.
If you cannot find any problems, the speed at which trailer swaying occurred is beyond
the limit of your particular vehicle-trailer combination.
Drive at a lower speed to prevent instability. Remember that swaying of the towing vehi-
cle-trailer increases as speed increases.
WARNING
■Trailer towing precautions
●To tow a trailer safely, use extreme care an d drive the vehicle in accordance with the
trailer’s characteristics and operating condit ions. Failure to do so could cause an acci-
dent resulting in death or serious injury. Vehicle stability and braking performance are
affected by trailer st ability, brake setting and performanc e, and the hitch. Your vehicle
will handle differently when towing a trailer.
●Set the vehicle height to the LO mode and turn off the rear height control air suspen-
sion when you connect a trailer, otherwise the vehicle height may change due to the
automatic leveling function, and you may ca tch part of your body in the vehicle,
resulting in an accident.

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
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Driving
Rear height control air suspension
Height control OFF button
Height control switch
Operating the switch changes ve hicle 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 multi-information 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 condit ions. Select the desired height with the
height control switch.
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Selecting vehicle height
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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
■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).
When the height control OFF button is
pressed with the vehicle stopped, the
vehicle height is fixed at the current
height.
This status is memorized in the system
even after the engine is stopped.
The height can be adjusted by pressing
the height control OFF button again.
When vehicle speed exceeds 18 mph (30 km/h), the rear height control air suspen-
sion turns on automatically.
Disabling the height control

GX460_OM_OM60T19U_(U)
3414-5. Using the driving support systems
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Driving
■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 un der 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 un der 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 th e 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.
■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 automati-
cally selected. However, the system may not switch to N mode depending on the loca-
tion of the malfunction.
●The “CHECK AIR SUSPENSION SYSTEM”/“C heck air suspension system” is dis-
played on the multi-information display, and the rear height control air suspension can-
not be activated until the malfunction is corrected.
Stop the engine and start it again. If the warning message turns off, the system is operat-
ing correctly. If the warning message continues to be displayed, have your vehicle
inspected by your Lexus dealer as soon as possible.

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GX460_OM_OM60T19U_(U)4-5. Using the driving support systems
WARNING
■The rear height control air suspension must be turned off
Be sure to observe the following precautions. Otherwise, the automatic leveling func-
tion may cause vehicle height to change, an
d 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 flatbed truck, tu rn off the rear height control air suspen-
sion and stop the engine.
●When the vehicle must be towed or disconnect ing a trailer, put the vehicle height in N
mode and turn off the rear he ight control air suspension.
●When the vehicle is stuck, turn off the rear height control air suspension.
■Selecting the correct height mode
●HI mode should only be used when drivin g on rough roads, for example when driving
off-road.
Because the vehicle’s center of gravity will become higher when in the mode, the
vehicle may become unstable when turnin g abruptly, resulting in an accident.
●Do not select HI mode when loading cargo on the roof luggage carrier.
Because the vehicle’s center of gravity will become higher when in the mode, the
vehicle may become unstable when turnin g abruptly, resulting in an accident.
●Before lowering vehicle height, check that there is no one under the vehicle.
NOTICE
■Be careful in any place where overhead space is limited
The vehicle height will rise when a higher mode is selected or cargo is unloaded. This
may cause damage to the vehicle.
■Do not select LO mode when driving on bumpy roads
If the underbody of the vehicle touches a rugged road surface, the vehicle may be
damaged.
■Changing vehicle height
Do not change vehicle height frequently.
The compressor may overheat and stop operation.
■When on the extremely uneven roads with rocks
Sometimes the vehicle height is not adjusted because it is judged as uneven road driv-
ing.