2009 TOYOTA TUNDRA Owners Manual

217
2-4. Using other driving systems
2
When driving
Intuitive parking assist (if equipped)
The intuitive parking assist is designed to inform you of the approxi-
mate distance between your vehicle and an obstruction by indicator
and buzzer when parking the veh icle. This system uses sensors to
detect obstructions.
■ Sensor types
Back sensors
Rear corner sensors
Front corner sensors
■ Intuitive parking assist switch
Press the switch to turn on.
(To turn off, press the switch
again.)
When on, the buzzer sounds
to inform the driver that the
system is operational. At this
time, the indicator will come
on.

218 2-4. Using other driving systems
The distance and buzzer■ When a sensor detects an obstacle.
The buzzer sounds.
Back sensors
Rear corner sensors
Zone
Distance
shown as
in in. (mm)Indicator
and buzzer
Far
Approximately
70.9—45.3
(1800—1150)
Intermittent
Mid
Approximately
45.3—33.5
(1150—850)Fast
intermittent
Near
Approximately
33.5 (850) or
less
Continuous
Zone
Distance
shown as
in in. (mm)Indicator
and buzzer
Far
Approximately
33.5—20.5
(850—520)
Intermittent
Mid
Approximately
20.5—15.7
(520—400)Fast
intermittent
Near
Approximately
15.7 (400) or
less
Continuous

219
2-4. Using other
driving systems
2
When driving
Front corner sensors
■ When two or more obstacles are detected simultaneously
The buzzer system responds to the nearest zone.
■ When multiple obstacles are detected in front and behind the
vehicle at the same time
The buzzer will change in the following manner.
● If an obstacle has been detected within 15.7 in. (400 mm) of the
front or 33.5 in. (850 mm) in rear of the vehicle (a continuous
buzzer is sounding), and a new obstacle is detected at the other
end of the vehicle, the buzzer will sound 7 times then one contin-
uous buzzer.
● If an obstacle has been detected within 15.7 in. (400 mm) of the
front or 33.5 in. (850 mm) in rear of the vehicle (a continuous
buzzer is sounding), and a new obs tacle is detected in the same
way at the other end of the vehi cle, the buzzer will sound 3 times
then one continuous buzzer.
Zone
Distance
shown as
in in. (mm)Indicator
and buzzer
Far
Approximately
23.6—15.7
(600—400)
Intermittent
Mid
Approximately
15.7—9.8
(400—250)Fast
intermittent
Near
Approximately
9.8 (250) or
less
Continuous

220 2-4. Using other driving systems
Sensors that operate and detection rangeThe following diagrams show the sensor detection range. Note that
sensors may not be able to detect obstacles that are extremely close
to the vehicle.
■ Detection range of the sensors
Back sensors
Rear corner sensors
Front corner sensors
Perceptible area
Approx. 70.9 in. (1800 mm)
Approx. 33.5 in. (850 mm)
Approx. 23.6 in. (600 mm)
The diagram shows the detection range of the sensors. Note that the sen-
sors may not be able to detect obstacles that are extremely close to the vehi-
cle.
The range of the sensors may change depending on the shape of the object\
etc.

221
2-4. Using other
driving systems
2
When driving
■The Intuitive parking assist system can be operated when
●Front corner sensors:
• The engine switch is in the ON position.
• The shift lever is in R.
• The shift lever is not in P or R and vehicle speed is approximate 6 mph
(10 km/h) or less.
● Back and rear corner sensors:
• The engine switch is in the ON position.
• The shift lever is in R
■ Sensor detection information
●Certain vehicle conditions and the surrounding environment may affect
the ability of a sensor to correctly detect an obstacle. Particular instances
where this may occur are listed below.
• There is dirt, snow or ice on a sensor.
• A sensor is frozen.
• A sensor is covered in any way.
• The vehicle is leaning considerably to one side.
• On an extremely bumpy road, on an incline, on gravel, or on grass.
• The vicinity of the vehicle is noisy due to vehicle horns, motorcycle
engines, air brakes of large vehicles, or other loud noises producing
ultrasonic waves.
• There is another vehicle equipped with intuitive parking assist sensors in the vicinity.
• A sensor is coated with a sheet of spray or heavy rain.
• The vehicle is equipped with a fender pole or radio antenna.
• A bumper or sensor receives a strong impact.
• In harsh sunlight or intense cold weather.
• The area directly under the bumpers is not detected. Objects lower than the sensors or thin stakes etc. may be detected ini-
tially, but as they draw closer, they may cease to be detected.
• A towing hitch is mounted to the vehicle.
• A non-genuine Toyota suspension (lowered suspension etc.) is installed.
• When attaching a two-way radio antenna.
• When the bumper is damaged.

222 2-4. Using other driving systems
.
In addition to the examples above, there are instances in which, because of
their shapes, signs and other objects may be judged by a sensor to be closer
than they are.
●The shape of the obstacle may prevent a sensor from detecting it. Pay
particular attention to the following obstacles:
• Wires, fences, ropes, etc.
• Cotton, snow and other materials that absorb radio waves
• Sharply-angled objects
• Low obstacles
• Tall obstacles with upper sections projecting outwards in the direction
of your vehicle
• A person near the vehicle (depending on the type of clothes worn)
• When the bumper is damaged.
■ Certification (Canada only)
This ISM device complies with Canadian ICES-001.
■ If the indicator is continuously on
Have the vehicle inspected by your Toyota dealer.
■ If the indicator remains blinking but do not sound the buzzer
Clean the sensors with soft cloth.
CAUTION
■Caution when using the intuitive parking assist
Observe the following precautions.
Failure to do so may result in the vehicle being unable to be driven safely
and possibly cause an accident.
●Do not use the sensor at speeds in excess of 6 mph (10 km/h).
● Do not attach any accessories within the sensor range.
NOTICE
■Notes when washing the vehicle
Do not apply intensive bursts of water or steam to the sensor area.
Doing so may result in the sensor malfunctioning.

223
2-4. Using other driving systems
2
When driving
Four-wheel drive system (if equipped)
Use the front-wheel drive control switch to select the following
transfer modes.
*1: Vehicles with multi-information display
*2: Vehicles without multi-information display
2WD (high speed position, two-wheel drive)
Normal driving.
4H (high speed position, four-wheel drive)
Greater traction than two-wheel drive.
When you experience a loss of power, such as wheel slipping.The 4HI indicator will come on.
4L (low speed position, four-wheel drive)
Driving requiring maximum power and traction such as climbing or
descending steep hills, off-road driving and hard pulling in sand or mud,
etc.The 4LO indicator will come on.
*2*1

224 2-4. Using other driving systems
Shifting between 4H and 4L■ Shifting from 4H to 4L
Stop the vehicle completely.
Shift the shift lever to N.
Push and turn the front-wheel drive control switch fully clock-
wise.
Maintain this condition until the 4LO indicator comes on.
■Shifting from 4L to 4H
Stop the vehicle completely.
Shift the shift lever to N.
Turn the front-wheel drive control switch fully counterclock-
wise.
Maintain this condition until the 4LO indicator turns off.
■Shifting between 2WD and 4H
Reduce your speed to less than 62 mph (100 km/h) and set the front drive
control switch between 2WD and 4H.
When the ambient temperature is 5.0°F (-15°C) or lower, shifting from 2WD
to 4H can be performed with the vehicle speed below 43 mph (70 km/h).
■ If the 4HI indicator blinks
●Shifting from 2WD to 4H
• If the 4HI indicator continues to blink, drive straight ahead while accel-
erating or decelerating.
• If the 4HI indicator continues to blink and the buzzer sounds, stop the vehicle or reduce the vehicle speed to less than 62 mph (100 km/h).
Operate the switch again.
● Shifting from 4H to 2WD
If the 4HI indicator continues to blink, drive straight ahead while acce\
ler-
ating or decelerating, or drive forw ard or backward in a short distance.