Get OPERATIONOFINSTRUMENTSANDCONTROLS -> Rear height control air suspension Guide for Toyota 4 Runner SUV Fourth Generation (2003-2009)

07 12.25

Rear height control air

suspension

D Vehicle stability control system

“HI” (high) mode—

D “AUTO LSD” system

The vehicle height is about 40 mm (1.6

in.) higher at rear than the “N” mode

height.

(two−wheel drive models)

“VSC OFF” warning light

This mode is suitable when driving on the

bumpy roads and through water.

When the system is normal and the en-

gine switch is turned to “ON”, the warning

light will come on and will go off after a

few seconds.

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However, when the vehicle speed exceeds

about 30 km/h (19 mph) or over in the

“HI” mode, the “N” mode is automatically

selected.

It is not a malfunction that the warning

light may stay on for 60 seconds after the

engine switch is turned to “ON”.

CAUTION

Depressing the brake pedal repeatedly

may turn on the light. It is normal if it

goes out after a few seconds.

This rear height control air suspension

controls the vehicle height depending

on the vehicle driving conditions. Select

your desired height among the “HI”

(high), “N” (normal) and “LO” (low)

modes with the height select switch.

The “HI” mode should be used for

severe off−road driving condition

only. Because the vehicle’s center of

gravity is higher in this setting, the

vehicle may become unstable when

turning abruptly, resulting in accident.

If the warning light flashes while driving,

the system does not work. However, as

normal braking operates when being ap-

plied, it is no problem to continue your

driving.

(a) Vehicle height modes

“N” (normal) mode—

In the following cases, contact your Toyota

dealer:

The vehicle height in this mode is stan-

dard. Regardless of the number of occu-

pants or the luggage loading condition, the

vehicle height is always automatically ad-

justed to a fixed height in this mode while

the engine is running.

D The warning light does not come on

after the engine switch is turned to

“ON”.

D The warning light remains on after the

engine switch is turned to “ON”.

D The warning light flashes while driving.

This mode is suitable for ordinary driving.

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07 12.25

“LO” (low) mode—

D When selecting a mode, there is a ve-

hicle speed limit. Refer to the following

table.

If the vehicle is moved to its usual loca-

tion or the ice is removed and the height

select switch is pressed, the vehicle

height control cannot be operated. In this

case, turn off and restart the engine, then

push the control switches.

The vehicle height is about 20 mm (0.8

in.) lower at rear than the “N” mode

height.

Yes = The mode can be selected.

No = The mode cannot be selected.

This mode allows you easy access to the

vehicle (getting in and out) and easy load-

ing and unloading operation.

“LO”

“N”

“HI”

mode

This mode is available when the vehicle

speed is under about 12 km/h (7 mph).

Under about

12 km/h

(7 mph)

Yes

NOTICE

Under about

30 km/h

(19 mph)

Use the “LO” mode when the vehicle

is stopped. Otherwise, when the ve-

hicle speed exceeds about 12 km/h (7

mph), “N” mode is selected automati-

cally. So be careful when you drive in

any place where the overhead height

is limited.

About

30 km/h

(19 mph) or

over

Yes

In the following cases, the rear height

control suspension will not operate.

(b) Vehicle height mode changing con-

dition

D The underbody of the vehicle has

To change the vehicle height, it is neces-

sary to meet the following conditions.

touched the surface on bumpy roads.

D The area around the rear suspension

D The engine should be running.

is coated with ice.

D The height control “OFF” indicator light

should go off.

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07 12.25

To change the “LO” mode to “HI”, push

the switch twice. It takes about 30 sec-

onds until the “LO” mode changes to the

“HI” mode.

NOTICE

z If the vehicle height is changed fre-

quently when the vehicle is heavily

loaded, the compressor may over-

heat, causing the vehicle height ad-

justment operation to stop.

Selecting the “N” mode—

To change the “HI” mode to “N”, push

the height select switch on the “Ɲ” side

once.

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z Before you lower the vehicle height

with the height select switch, check

under the vehicle to make sure

nothing to damage the vehicle or

no one to be injured is there and

that the underbody of the vehicle

does not touch the ground.

To change the “LO” mode to “N”, push

the height select switch on the “Ɯ” side

once.

Selecting the “LO” mode—

Push the height select switch on the “Ɲ”

side while the vehicle is stopped.

z After unloading, the height of a ve-

hicle equipped with the rear height

control air suspension becomes

slightly higher than the normal ve-

hicle height. Take sufficient care

where the overhead height is re-

stricted.

To change the mode, push the height

select switch on either side of “Ɯ”

(higher) or “Ɲ” (lower).

To change the “N” mode to “LO”, push

the switch once.

To change the “HI” mode to “LO”, push

the switch twice.

The height control indicator light indicates

which mode is selected. (See “(e) Height

control indicator light” described below.)

Even if the engine is stopped while the

vehicle height is being lowered, the opera-

tion continues for up to 25 seconds. If,

within this 25 seconds, any of the side

doors or the back door is opened, opera-

tion will continue for a further 15 seconds.

Selecting the “HI” mode—

z Do not select the “LO” mode in the

bumpy roads. If the underbody of

the vehicle touches the rugged road

surface, the vehicle may be dam-

aged.

Push the height select switch on the “Ɯ”

side when the vehicle speed is under

about 30 km/h (19 mph).

To change the “N” mode to “HI”, push

the switch once.

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(d) Turning off the rear height control

air suspension

CAUTION

To turn off the rear height control air

suspension with the vehicle stopped,

push the “HEIGHT CONTROL OFF”

switch. The height control “OFF” indi-

cator light comes on and the vehicle

height is fixed in the same mode as the

height control switch is pushed.

If you drive through deep water over

about 700 mm (28 in.) in depth, put

the vehicle height in the “HI” mode

with the height select switch and then

turn off the rear height control air

suspension by pushing the “HEIGHT

CONTROL OFF” switch.

This status is memorized in the system

even after the engine is stopped.

NOTICE

If you push the switch again, the height

control “OFF” indicator light goes out and

the rear height control air suspension is

turned on.

z When jacking up or installing tire

chains, be sure to turn off the rear

height control air suspension by

pushing the “HEIGHT CONTROL

OFF” switch and stop the engine.

Otherwise, the vehicle height may

change because of the automatic

leveling function, resulting in an un-

expected accident.

CY16015

Even after the rear height control air sus-

pension is turned off with the “HEIGHT

CONTROL OFF” switch, if the vehicle

speed exceeds 30 km/h (19 mph), the

rear height control air suspension automat-

ically selects the “N” mode.

z If your vehicle must be towed, put

the vehicle height in the “N” mode

and turn off the rear height control

air suspension. Otherwise, the ve-

hicle height may change because of

the automatic leveling function, re-

sulting in an unexpected accident.

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z If your vehicle gets ditched, turn off

the rear height control air suspen-

sion with the “HEIGHT CONTROL

OFF” switch. Otherwise, the vehicle

height may change because of the

automatic leveling function resulting

in an unexpected accident.

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CY16019

(e) Height control indicator lights

1. Height control indicator lights

If you change the vehicle height mode,

the indicator lights change as follows:

When changing the vehicle height from

the “N” mode to “HI”:

2. Height control “OFF” indicator light

When the engine switch is turned on, all

the indicator lights come on. The indicator

light showing the present mode only re-

mains on and all other lights go off after

a few seconds. This means the system

operates correctly.

1. The “N” mode indicator light goes off

and the “HI” mode indicator light blinks.

2. After the vehicle height control reaches

the “HI” mode, the “HI” mode indicator

light remains on.

If the underbody of the vehicle has

touched the surface on bumpy roads or

the area around the rear suspension is

coated with ice, the vehicle height cannot

be lowered with the height select switch.

The height control indicator lights change

as follows:

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1. The present mode indicator light goes

off and the selected mode indicator

light blinks.

D The height control “OFF” indicator light

does not come on when the engine

switch is turned on.

(g) Rear height control failure warning

If there is a problem somewhere in the

rear height control air suspension, the “N”

mode is automatically selected. If this oc-

curs, the height control “OFF” indicator

light blinks and the vehicle height control

cannot be activated until the malfunction

is corrected. If this is the case, bring your

vehicle to your Toyota dealer as soon as

possible and have it checked.

2. The selected mode indicator light goes

off. (The vehicle height does not

change.) The present mode indicator

light comes on again.

D The height control “OFF” indicator light

blinks.

(f) Parking and stopping tips

If you immediately stop the engine to park

the vehicle after off−road driving, the ve-

hicle height is lowered slightly as the ve-

hicle becomes cool. When parking, make

sure there is nothing that will be in con-

tact with the underbody of the vehicle.

When you start the engine, the vehicle

returns to the previous height.

In this case, even if the vehicle is moved

to its usual location or the ice is removed

and the height select switch is pressed,

vehicle height control cannot be operated.

Turn off the engine once and then restart

it.

Height control “OFF” indicator light:

When the engine switch is turned on, this

light comes on. If it goes out after a few

seconds, the rear height control air sus-

pension operates correctly. If you push the

“HEIGHT CONTROL OFF” switch, the rear

height control air suspension is turned off.

The height control “OFF” indicator light

comes on.

If you park the vehicle for a long time,

the vehicle height may be gradually low-

ered. When parking for a long time, make

sure there is nothing that will be in con-

tact with the underbody of the vehicle.

When you start the engine, the vehicle

returns to the previous height.

If you stop the engine, the vehicle height

may change in accordance with the

change in the temperature. When you

start the engine, the vehicle returns to the

previous height.

In the following cases, there is a problem

somewhere in the rear height control air

suspension. Although there is no problem

to continue normal driving, have the rear

height control air suspension checked by

your Toyota dealer as soon as possible.

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OPERATIONOFINSTRUMENTSANDCONTROLS -> Rear height control air suspension for Your Toyota 4 Runner SUV Fourth Generation (2003-2009)

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