2010 TOYOTA 4RUNNER lock

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Downhill assist control system
With the downhill assist control system, the vehicle is able to
descend a steep hill while maintaining a constant low speed of about
3 mph (5 km/h) without brake pedal operation.
■ Activating the system
The system will activate when
●The vehicle is traveling under 15 mph (25 km/h) with the
accelerator and brake pedals released.
● Part-time 4WD models: The front-wheel drive control lever is
in L4.
Full-time 4WD models: The fou r-wheel drive control switch is
in L4L.
● The rear differential is unlocked (if equipped).
Press the “DAC” switch.
The downhill assist control sys-
tem indicator will come on to
indicate that the downhill assist
control system is activated.
Pressing the switch again turns
the system off.

: If equipped

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While the downhill assist control system is operating
The slip indicator will flash to
indicate that the downhill assist
control system is operating, and
the stop lights and high mounted
stoplight will turn on.
CTH24AS047
■Operating tips
The system will operate when the shift lever is in any position other than P.
However, to make effective use of the system it is recommended that the
shift lever be shifted to the “2” or “1” range of S.
■ If the downhill assist control system indicator flashes
● In the following situations, the indicator flashes and the system will not
operate:
• The transfer mode is not in L4 (part-time 4WD models) or L4L (full-time
4WD models).
• The rear differential is locked.
• The brake system overheats. The system will situations operation and a buzzer will sound to alert the
driver. At this time, the “TRAC OFF (TRC OFF)” indicator will come on.
Stop the vehicle in a safe place. Refrain from using the system until the
indicator stops flashing and stays on. (There is no problem with con-
tinuing normal driving.)
● In the following situations, the indicato r flashes to alert the driver, but the
system will still operate:
• The shift lever is in N. (Engine braking will not occur.)
• The “DAC” switch is turned off while the system is operating. The system will gradually ceases operation. The indicator will flash dur-
ing operation, and then go off when the system is fully off.

240 2-4. Using other driving systems
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■System malfunction
In case of a system malfunction, the following may occur:
● The downhill assist control system indicator flashes in a situation other
than those listed above.
● The downhill assist control system indicator does not come on when the
engine switch is turned to the “ON” position (vehicles without a smart key
system) or the “ENGINE START STOP” switch is turned to IGNITION ON
mode (vehicles with a smart key system).
Have your vehicle inspected by your Toyota dealer.
CAUTION
■ Conditions which may affect the downhill assist control system opera-
tion
● Do not rely too heavily on the downhill assist control system. On extremely
steep inclines, icy surfaces or muddy roads, the vehicle may slip and the
system may not be able to maintain the constant low vehicle speed of
about 3 mph (5 km/h), leading to an accident causing death or serious
injury.
● Do not shift the shift lever to R while driving forward, or to D while driving
backward. Doing so may cause the wheels to lock up, leading to an acci-
dent causing death or serious injury. In addition, excessive stress will be
applied to the automatic transmission, possibly resulting in damage.

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When driving
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Crawl Control
Allows travel on extremely rough off-road surfaces at a fixed low
speed without pressing the accelerat or or brake pedal. Minimizes
loss of traction or vehicle slip wh en driving on slippery road sur-
faces, allowing for stable driving.
■ Crawl Control switch
“ON/OFF” switch
The Crawl Control indicator comes on and the slip indicator flashes
when operating.
Speed selector dial
Turn the dial clockwise to increase the speed and counterclockwise to
decrease the speed.
Crawl Control indicator
Slip indicator

: If equipped

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Messages displayed on the accessory meter
Depending on switch operation, one of the following messages may
appear on the accessory meter to provide guidance on transfer mode
selection etc:
MessageDetailsProcedure
SHIFT TO 4WD
(When selecting MUD
& SAND mode) Indicates that the
transfer mode needs
to be changed to H4
or L4.Shift the front-wheel
drive control lever to
H4 or L4.
SHIFT TO L4
(When selecting
LOOSE ROCK,
MOGUL or ROCK
mode) Indicates that the
transfer mode needs
to be changed to L4.
Shift the front-wheel
drive control lever to
L4.
STOP THE VEHICLE
& SHIFT THE AUTO.
TRANSMISSION TO N
(When selecting any
mode) Indicates that the
transfer mode cannot
be changed to H4 or
L4.
Stop the vehicle com-
pletely and/or shift the
shift lever to N.
ACCELERATE OR
DECELERATE
(When shifting the
front-wheel control
lever to H4 or H2) Indicates that the
transfer mode may
not successfully
change.
Drive straight ahead
while accelerating or
decelerating, or drive in
reverse.
DRIVE THE VEHICLE
A SHORT DISTANCE
(When pressing the
rear differential lock
switch) Indicates that the rear
differential is not
locked.
Drive the vehicle for-
ward or backward a
short distance.
OP. NOT POSSIBLE
WHEN Multi-terrain
Select ACTIVATED
(When pressing the
VSC off switch or “A-
TRAC” switch) Indicates that VSC
and active traction
control cannot be dis-
abled while Multi-ter-
rain Select is
operating.
-

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Driving assist systems
To help enhance driving safety and performance, the following sys-
tems operate automatically in res ponse to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too h eavily when operating the vehicle.
■ABS (Anti-lock Brake System)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface
■Multi Terrain ABS (Anti-lock Brake System) (if equipped)
Helps to prevent wheel lock when the brakes are applied suddenly, or if
the brakes are applied while driving on a slippery road surface, or in off-
road conditions (such as rough roads, sand and mud)
The Multi Terrain ABS operates in syn chronization with the Multi-terrain
Select.
■ Brake assist
Generates an increased level of braking force after the brake pedal is
depressed when the system detects a panic stop situation
■VSC (Vehicle Stability Control)
Helps the driver to control skidding when swerving suddenly or turning
on slippery road surfaces
■TRAC/TRC (Traction Control)
Helps to maintain drive power and prevent the drive wheels from spin-
ning when starting the vehicle or accelerating on slippery roads
■Hill-start assist control (if equipped)
Helps to prevent the vehicle from rolling backward when starting on an
incline or slippery slope
■LSD (Limited Slip Differential) (if equipped)
Transfers drive power to the rear tires when front tires spin, and vice
versa, in order to improve traction

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■Hill-start assist control operation conditions
● The shift lever is in D or S.
● The brake pedal is not depressed.
● The rear differential is unlocked (if equipped).
■ If the brake system overheats
The hill-start assist control will cease operation and a buzzer will sound to
alert the driver. At this time, the “TRAC OFF (TRC OFF)” indicator will come
on. Stop the vehicle in a safe place. (There is no problem with continuing
with normal driving.)
The system will be automatically restored after a short time.
■ Sounds and vibrations caused by the ABS, Multi Terrain ABS (if
equipped), brake assist, VSC, TRAC (TRC) and hill-start assist control
(if equipped) systems
● A sound may be heard from the engine compartment when the engine is
started or just after the vehicle begins to move. This sound does not indi-
cate that a malfunction has occurred in any of these systems.
● Any of the following conditions may occur when the above systems are
operating. None of these indicates that a malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
• The brake pedal may pulsate slightly after the ABS or Multi Terrain
ABS is activated.
• The brake pedal may move down slightly after the ABS or Multi Terrain ABS is activated.
■ Reactivation of the TRAC (TRC)/VSC systems after turning off the
engine
Turning off the engine after turning off the TRAC (TRC)/VSC systems will
automatically reactivate them.
■ Reactivation of the VSC system linked to vehicle speed (2WD models)
When the TRAC system is turned off and the AUTO LSD system is turned
on, the VSC system will turn on when vehicle speed increases. However,
when the TRAC and VSC systems are turned off, the systems will not turn
on even when vehicle speed increases.

266 2-5. Driving information
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NOTICE
■To prevent water damage
Take all necessary safety measures to ensure that water damage to the
engine or other components does not occur.
● Water entering the engine air intake will cause severe engine damage.
● Water entering the automatic transmission will cause deterioration in shift
quality, locking up of your transmission accompanied by vibration, and ulti-
mately damage.
● Water can wash the grease from wheel bearings, causing rusting and pre-
mature failure, and may also enter the differentials, transmission and
transfer case, reducing the gear oil’s lubricating qualities.
■ When you drive through water
If driving through water, such as when crossing shallow streams, first check
the depth of the water and the bottom of the riverbed for firmness. Drive
slowly and avoid deep water.
■ Inspection after off-road driving
● Sand and mud that has accumulate d in brake drums and around brake
discs may affect braking efficiency and may damage brake system compo-
nents.
● Always perform a maintenance inspection after each day of off-road driv-
ing that has taken you through rough terrain, sand, mud, or water. For
scheduled maintenance information, refer to the “Scheduled Maintenance
Guide” or “Owner’s Manual Supplement”.