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.

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.

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.

CAUTION

Selecting the correct height mode

• HI mode should only be used when driving 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 turning 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 turning 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 driving.