OPERATIONOFINSTRUMENTSANDCONTROLS -> Four?wheel drive system for Your Toyota 4 Runner SUV Fourth Generation (2003-2009)

07 12.25  
Fourwheel drive system (fulltime  
fourwheel drive models)—  
(a) Fourwheel drive control  
(g) Good driving practice  
(h) If you cannot shift the selector le-  
ver out of “P” position  
D If the transmission repeatedly shifts up  
and down between fourth gear and  
overdrive when climbing a gentle slope,  
shift the selector lever to the “4” posi-  
tion. Be sure to shift the selector lever  
to the “D” position immediately after-  
ward.  
If you cannot shift the selector lever from  
the “P” position even though the brake  
pedal is depressed, use the shift lock  
override button. For instructions, see “If  
you cannot shift automatic transmission  
selector lever” on page 410 in Section 4.  
D When towing a trailer, in order to main-  
tain engine braking efficiency, do not  
use “D” position.  
CAUTION  
Fourwheel drive control switch knob  
Always keep your foot on the brake  
pedal while stopped with the engine  
running. This prevents the vehicle  
from creeping.  
NOTICE  
Always use the brake pedal or the  
parking brake to hold the vehicle on  
an upgrade. Do not attempt to hold  
the vehicle using the accelerator ped-  
al, as this can cause the transmission  
to overheat.  
Center differential lock switch  
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Use the fourwheel drive control switch  
knob and center differential lock switch  
to select the transfer and center differ-  
ential modes.  
“L4” (low speed position) and center  
differential unlocked: Fourwheel drive  
control switch knob at “L4”, center differ-  
ential unlocked  
NOTICE  
As soon as the center differential lock  
switch is turned on, the “VSC OFF”  
indicator light comes on. After the  
wheels are out of the ditch or off the  
slippery or bumpy surface, turn the  
center differential lock switch off.  
Make sure that the center differential  
lock indicator and “VSC OFF” indica-  
tor lights turn off.  
The “H4” and “L4” positions of the four−  
wheel drive control switch knob provide  
either lock or unlock mode of the center  
differential. The center differential can be  
locked or unlocked by pushing the center  
differential lock switch.  
The “4LO” (low speed fourwheel drive)  
indicator light comes on when the “L4”  
mode is selected.  
Use this for maximum power and traction.  
Use this for climbing or descending steep  
hills, offroad driving, and hard pulling in  
sand or mud.  
Use the center differential lock system if  
your wheels get stuck in a ditch, or when  
you are driving on a slippery or bumpy  
surface. When the center differential is  
locked, the vehicle stability control system  
is automatically turned off and the center  
differential lock and “VSC OFF” indicator  
lights come on because the function that  
controls engine performance interferes  
with the process of freeing your wheels.  
In this mode, the braking feeling that oc-  
curs when the wheels are negotiating a  
sharp corner is further reduced than in the  
“L4” (low speed position) and center differ-  
ential locked mode.  
“H4” (high speed position) and center  
differential unlocked: Fourwheel drive  
control switch knob at “H4”, center differ-  
ential unlocked  
Use this for normal driving on all types of  
roads, from dry hardsurfaced roads to  
wet, icy or snowcovered roads. This  
position gives greater economy, quietest  
ride, least wear and better vehicle control.  
“L4” (low speed position) and center  
differential locked: Fourwheel drive con-  
trol switch knob at “L4”, center differential  
locked  
The “4LO” (low speed fourwheel drive)  
indicator light comes on when the “L4”  
mode is selected.  
“H4” (high speed position) and center  
differential locked: Fourwheel drive con-  
trol switch knob at “H4”, center differential  
locked  
Use this for greater traction when you  
experience  
a
loss of power, such as  
wheel slipping, in the center differential  
unlock mode.  
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(b) Shifting procedure  
Use this for maximum power and traction.  
Use this for hard pulling in situations the  
vehicle cannot negotiate even in the “L4”  
(low speed position) and center differential  
unlocked mode. Also, using this mode  
when driving down steep offroad inclines  
will help contribute to increased vehicle  
stability.  
See “(b) Shifting procedure” for further in-  
structions.  
SHIFTING BETWEEN “H4” (UNLOCKED)  
AND “H4” (LOCKED)  
To shift between unlock and lock  
modes in “H4”, push the center differen-  
tial lock switch.  
SHIFTING BETWEEN “L4” (UNLOCKED)  
AND “L4” (LOCKED)  
To shift between unlock and lock  
modes in “L4”, push the center differen-  
tial lock switch.  
The indicator light tells when the differen-  
tial lock is engaged. Note that the differ-  
ential is not still locked as long as the  
indicator light remains off.  
SHIFTING BETWEEN “H4” AND “L4”  
When the operation is not completed, the  
indicator blinks. If the indicator light does  
not go off when you push the center  
differential lock switch to unlock the cen-  
ter differential, drive straight ahead while  
accelerating or decelerating, or drive in  
reverse.  
To shift from “H4” to “L4”, bring the  
vehicle to a complete stop with the brake  
pedal held down with your foot, shift the  
automatic transmission selector lever into  
“N” and push and turn the fourwheel  
drive control switch knob fully clockwise.  
To shift from “L4” to “H4”, bring the  
vehicle to a complete stop with the brake  
pedal held down with your foot, shift the  
automatic transmission selector lever into  
“N” and turn the fourwheel drive control  
switch knob fully counterclockwise.  
If the center differential lock system op-  
eration is not completed within 5 seconds  
while the cruise control system is set,  
cancel the cruise control system. To can-  
cel the cruise control system, see “Cruise  
control” on page 203 in Section 17.  
If the indicator blinks even if doing so,  
contact your Toyota dealer as soon as  
possible. There may be a trouble in the  
center differential lock system.  
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Fourwheel drive system  
(multimode fourwheel drive  
models)—  
(a) Multimode control  
If the “4LO” (low speed fourwheel drive)  
indicator light continues to blink and the  
buzzer sounds when you operate the four−  
wheel drive control switch knob to the  
“H4” or “L4” position, drive forward or  
backward in a short distance, then stop  
the vehicle completely, shift the automatic  
transmission selector lever securely into  
“N” and operate the switch knob again.  
If the indicator continues to blink even if  
doing so, contact your Toyota dealer as  
soon as possible. There may be a trouble  
in the fourwheel drive system.  
Center differential lock switch  
CAUTION  
Use the multimode control switch  
knob and center differential lock switch  
to select the transfer and center differ-  
ential modes.  
Never operate the fourwheel drive  
control switch knob if the wheels are  
slipping. Stop the slipping or spin-  
ning before operating.  
The “H4” and “L4” positions of the multi−  
mode control switch knob provide either  
lock or unlock mode of the center differen-  
tial.  
Multimode control switch knob  
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The center differential can be locked or  
unlocked by pushing the center differential  
lock switch.  
“H2” (high speed position, twowheel  
drive): Multimode control switch knob at  
“H2”  
“L4” (low speed position, fourwheel  
drive) and center differential unlocked:  
Multimode control switch knob at “L4”,  
center differential unlocked  
Use the center differential lock system if  
your wheels get stuck in a ditch, or when  
you are driving on a slippery or bumpy  
surface. When the center differential is  
locked, the vehicle stability control system  
is automatically turned off and the center  
differential lock and “VSC OFF” indicator  
lights come on because the function that  
controls engine performance interferes  
with the process of freeing your wheels.  
Use this for normal driving on dry hard−  
surfaced roads. This position gives greater  
economy, quietest ride, least wear and  
better vehicle control.  
The fourwheel drive and “4LO” (low  
speed fourwheel drive) indicator lights  
come on when the “L4” mode is selected.  
“H4” (high speed position, fourwheel  
drive) and center differential unlocked:  
Multimode control switch knob at “H4”,  
center differential unlocked  
Use this for maximum power and traction.  
Use this for climbing or descending steep  
hills, offroad driving, and hard pulling in  
sand or mud.  
The fourwheel drive indicator light comes  
on when the “H4” mode is selected.  
In this mode, the braking feeling that oc-  
curs when the wheels are negotiating a  
sharp corner is further reduced than in the  
“L4” (low speed position, fourwheel drive)  
and center differential locked mode.  
NOTICE  
Use this for greater traction than two−  
wheel drive. (When you experience a loss  
of power, such as wheel slipping.) This  
position provides greater traction than  
twowheel drive.  
As soon as the center differential lock  
switch is turned on, the “VSC OFF”  
indicator light comes on. After the  
wheels are out of the ditch or off the  
slippery or bumpy surface, turn the  
center differential lock switch off.  
Make sure that the center differential  
lock indicator light and “VSC OFF”  
indicator light turn off.  
“L4” (low speed position, fourwheel  
drive) and center differential locked:  
Multimode control switch knob at “L4”,  
center differential locked  
“H4” (high speed position, fourwheel  
drive) and center differential locked:  
Multimode control switch knob at “H4”,  
center differential locked  
The fourwheel drive and “4LO” (low  
speed fourwheel drive) indicator lights  
come on when the “L4” mode is selected.  
The fourwheel drive indicator light comes  
on when the “H4” mode is selected.  
Use this for greater traction when you  
experience  
a
loss of power, such as  
wheel slipping, in the center differential  
unlock mode.  
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07 12.25  
(b) A.D.D.  
(automatic disconnecting  
differential)  
Use this for maximum power and traction.  
Use this for hard pulling in situations the  
vehicle cannot negotiate even in the “L4”  
(low speed position, fourwheel drive) and  
center differential unlocked mode. Also,  
using this mode when driving down steep  
offroad inclines will help contribute to in-  
creased vehicle stability.  
See “(c) Shifting procedure” for further in-  
structions.  
The A.D.D. can be engaged or disen-  
gaged by the shifting operations de-  
scribed in “(c) Shifting procedure”.  
You should drive in fourwheel drive for  
at least 16 km (10 miles) each month.  
This will assure that the front drive com-  
ponents are lubricated.  
The indicator light tells when the differen-  
tial lock is engaged. Note that the differ-  
ential is not still locked as long as the  
indicator light remains off.  
When the operation is not completed, the  
indicator blinks. If the indicator light does  
not go off when you push the center  
differential lock switch to unlock the cen-  
ter differential, drive straight ahead while  
accelerating or decelerating, or drive in  
reverse.  
If the center differential lock system op-  
eration is not completed within 5 seconds  
while the cruise control system is set,  
cancel the cruise control system. To can-  
cel the cruise control system, see “Cruise  
control” on page 203 in Section 17.  
If the indicator blinks even if doing so,  
contact your Toyota dealer as soon as  
possible. There may be a trouble in the  
center differential lock system.  
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07 12.25  
(c) Shifting procedure  
SHIFTING BETWEEN “H2” AND “H4”  
(UNLOCKED)  
To shift from “H4” (unlocked) to “H2”,  
turn the multimode control switch knob  
fully counterclockwise.  
SHIFTING BETWEEN “H4” (UNLOCKED)  
AND “H4” (LOCKED)  
To shift from “H2” to “H4” (unlocked),  
reduce the vehicle speed to less than 100  
km/h (62 mph) and turn the multimode  
control switch knob fully clockwise.  
To shift between unlock and lock  
modes in “H4”, push the center differen-  
tial lock switch.  
This can be done at any speed.  
If the fourwheel drive indicator light con-  
tinues to blink when you operate the mul-  
timode control switch knob from the “H4”  
to the “H2” position, this reminds you that  
the transfer mode is not securely in “H2”  
mode. Drive straight ahead while acceler-  
ating or decelerating, or drive forward or  
backward in a short distance.  
SHIFTING BETWEEN “L4” (UNLOCKED)  
AND “L4” (LOCKED)  
If the fourwheel drive indicator light con-  
tinues to blink when you operate the mul-  
timode control switch knob from the “H2”  
to the “H4” position, this reminds you that  
the transfer mode is not securely in “H4”  
mode. Drive straight ahead while acceler-  
ating or decelerating.  
To shift between unlock and lock  
modes in “L4”, push the center differen-  
tial lock switch.  
SHIFTING BETWEEN “H4” AND “L4”  
To shift from “H4” to “L4”, bring the  
vehicle to a complete stop with the brake  
pedal held down with your foot, shift the  
automatic transmission selector lever into  
“N” and push and turn the multimode  
control switch knob fully clockwise.  
If the indicator light continues to blink  
even if doing so, contact your Toyota  
dealer as soon as possible. There may be  
a trouble in the fourwheel drive system.  
If the fourwheel drive indicator and the  
center differential lock indicator lights con-  
tinue to blink and the buzzer sounds when  
you operate the multimode control switch  
knob from the “H2” to the “H4” position,  
this reminds you that the vehicle speed is  
above 100 km/h (62 mph). Reduce the  
vehicle speed to less than 100 km/h (62  
mph). Operate the switch knob again.  
CAUTION  
To shift from “L4” to “H4”, bring the  
vehicle to a complete stop with the brake  
pedal held down with your foot, shift the  
automatic transmission selector lever into  
“N” and turn the multimode control switch  
knob counterclockwise.  
Never operate the multimode control  
switch knob if the wheels are slip-  
ping. Stop the slipping or spinning  
before operating.  
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