2008 TOYOTA 4RUNNER suspension

viii
Installation of a mobiletwo−way radio system
As the installation of a mobile two−way radio system in
your vehicle could affect electronic systems such as fol-
lows, be sure to check with your Toyota dealer for precau-
tionary measures or special instructions regarding installa-
tion.
Multiport fuel injection system/sequential multiport
fuel injection system
 SRS airbag system
 Seat belt pretensioner system
 Traction control system (two−wheel drive models)
 Active traction control system
(four−wheel drive models)
 AUTO LSD" system (two−wheel drive models)
 Vehicle stability control system
 Downhill assist control system
(four−wheel drive models)
 Hill−start assist control system
 Rear height control air suspension
Tire pressure warning system
 Cruise control system
 Anti−lock brake system
 Electronic throttle control system
Tires and loading on your
To y o t a
Underinflated or overinflated tire pressure and the
excess load may result in the deterioration of
steering ability and braking ability, leading to an
accident. Check the tire inflation pressure periodi-
cally and be sure to keep the load limits given in
this Owner ’s Manual. For details about tire inflation
pressure and load limits, see pages 441 and 364.

2
1. Side vents
2. Side defroster outlets
3. Instrument cluster
4. Center vents
5. Personal lights
6. Electric moon roof switch
7. Garage door opener
8. Auxiliary boxes
9. Glove box
10. Automatic transmission selector lever
11. Power door lock switches
12. Power window switches
13. Seat heater switches
14. Rear height control air suspension switch
15. Rear vents
16. Trash holder
17. Toyota electronic modulated suspension mode select switch
18. Downhill assist control switch
19. Front cup holders
20. Tilt steering lock release lever
Instrument panel overview
CY11050y

10
∗1: For details, see Service reminder indicators and warning
buzzers" on page 149 in Section 1−6.
∗2: For details, see Roll sensing of curtain shield airbags off
switch" on page 95 in Section 1−3.
∗3: If this light flashes, see Four−wheel drive system" on page
168 in Section 1−7.
∗4: If this light flashes, see Rear height control air suspension"
on page 191 in Section 1−7.
∗5: If this light flashes, see Cruise control" on page 203 in
Section 1−7.

79
CY13114
Do not put anything or any part of
your body on or in front of the
dashboard or steering wheel pad
that houses the front airbag sys-
tem. They might restrict inflation or
cause death or serious injury as
they are projected rearward by the
force of the deploying airbags. Like-
wise, the driver and front passenger
should not hold objects in their
arms or on their knees.
Do not modify or remove any wir-
ing. Do not modify, remove, strike
or open any components such as
the steering wheel pad, steering
wheel, column cover, dashboard
near the front passenger airbag,
front passenger airbag or airbag
sensor assembly. Doing so may pre-
vent the front airbag system from
activating correctly, cause sudden
activation of the system or disable
the system, which could result in
death or serious injury.
Failure to follow these instructions
can result in death or serious injury.
Consult your Toyota dealer about any
repair and modification.
If you wish to modify your vehicle for
a person with physical disability, con-
sult your Toyota dealer. It may dan-
gerously interfere with the SRS front
airbags operation.NOTICE
Do not perform any of the following
changes without consulting your
Toyota dealer. Such changes can in-
terfere with proper operation of the
SRS front airbag system in some
cases.
 Installation of electronic devices
such as a mobile two−way radio,
cassette tape player or compact
disc player
 Modification of the suspension sys-
tem
 Modification of the front end struc-
ture
 Attachment of a grille guard (bull
bar, kangaroo bar, etc.), snowplow,
winches or any other equipment to
the front end
 Repairs made on or near the front
fenders, front end structure, con-
sole, steering column, steering
wheel or dashboard near the front
passenger airbag

161
OPERATION OF INSTRUMENTS AND
CONTROLS
Engine (ignition) switch, Transmission and Parking
brake
Engine (ignition) switch162
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Automatic transmission 163
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
Four−wheel drive system 168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Traction control system 175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Active traction control system 178
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUTO LSD" system 180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
Vehicle stability control system 183
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 186
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill−start assist control system 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension 191
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 197
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 202
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Cruise control 203
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
SECTION 1− 7

191

Vehicle stability control system
AUTO LSD" system
(two−wheel drive models)
VSC OFF" warning light
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.
It is not a malfunction that the warning
light may stay on for 60 seconds after the
engine switch is turned to ON".
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
goes out after a few seconds.
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.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the engine switch is turned to
ON".
The warning light remains on after the
engine switch is turned to ON".
The warning light flashes while driving.
CY16008
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.
(a) Vehicle height modes
N" (normal) mode
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.
This mode is suitable for ordinary driving. HI" (high) mode
The vehicle height is about 40 mm (1.6
in.) higher at rear than the N" mode
height.
This mode is suitable when driving on the
bumpy roads and through water.
However, when the vehicle speed exceeds
about 30 km/h (19 mph) or over in the
HI" mode, the N" mode is automatically
selected.
CAUTION
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.
Rear height control air
suspension

192
LO" (low) mode
The vehicle height is about 20 mm (0.8
in.) lower at rear than the N" mode
height.
This mode allows you easy access to the
vehicle (getting in and out) and easy load-
ing and unloading operation.
This mode is available when the vehicle
speed is under about 12 km/h (7 mph).
NOTICE
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.
(b) Vehicle height mode changing con-dition
To change the vehicle height, it is neces-
sary to meet the following conditions.
The engine should be running.
The height control OFF" indicator light
should go off.
When selecting a mode, there is a ve-
hicle speed limit. Refer to the following
table.
Yes =The mode can be selected.
No =The mode cannot be selected.
LO"
modeN"
modeHI"
mode
Under about
12 km/h
(7 mph)
Ye sYe sYe s
Under about
30 km/h
(19 mph)
NoYe sYe s
About
30 km/h
(19 mph) or
over
NoYe sNo
In the following cases, the rear height
control suspension will not operate.
The underbody of the vehicle has
touched the surface on bumpy roads.
The area around the rear suspension
is coated with ice. 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.

193
CY16014
(c) Vehicle height adjustment
To change the mode, push the height
select switch on either side of "
(higher) or  " (lower).
The height control indicator light indicates
which mode is selected. (See (e) Height
control indicator light" described below.)
Selecting the HI" mode
Push the height select switch on the  "
side when the vehicle speed is under
about 30 km/h (19 mph).
To change the N" mode to HI", push
the switch once. 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.
Selecting the N" mode
To change the HI" mode to N", push
the height select switch on the  " side
once.
To change the LO" mode to N", push
the height select switch on the  " side
once.
Selecting the LO" mode
Push the height select switch on the  "
side while the vehicle is stopped.
To change the N" mode to LO", push
the switch once.
To change the HI" mode to LO", push
the switch twice.
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.
NOTICE
 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.
 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.
 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.
 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.