2010 TOYOTA SEQUOIA sensor

199
2-4. Using other
driving systems
2
When driving
■Automatically canceling vehicle-to-vehicle distance control
Vehicle-to-vehicle distance control driving is automatically canceled in the
following situations.
●Vehicle speed falls below 25 mph (40 km/h)
● VSC is activated
● The sensor cannot operate correctly because it is covered in some way.
*
●The windshield wipers are operating at high or low speed.*
●The operation cannot be switched for 5 seconds or more after operating
the front wheel drive control switch or the center differential lock switch.
*: Vehicle-to-vehicle distance control driving must be reset by pressing the
ON-OFF button again.
If vehicle-to-vehicle distance control driving is automatically canceled for any
other reason, there may be a malfunction in the system. Contact your Toyota
dealer.
■ Automatically canceling constant speed control
The set speed is automatically canceled in the following situations.
●Actual vehicle speed is more than 10 mph (16 km/h) below the preset
vehicle speed
At this time, the memorized set speed is not retained.
● Vehicle speed falls below 25 mph (40 km/h)
● VSC is activated
● The operation cannot be switched for 5 seconds or more after operating
the front wheel drive control switch or the center differential lock switch.
■ Vehicle-to-vehicle distance settings
Select a distance from the table below. Note that the distances shown corre-
spond to a vehicle speed of 55 mph (90 km/h). Vehicle-to-vehicle distance
increases/decreases in accordance with vehicle speed.
Distance optionsVehicle-to-vehicle distance
Long Approximately 245 ft. (75 m)
Medium Approximately 165 ft. (50 m) Short Approximately 100 ft. (30 m)

200 2-4. Using other driving systems
■Laser radar sensor
■ Certification
Always keep the sensor clean to ensure
that the vehicle-to-vehicle distance con-
trol operates properly. (Some obstruc-
tions, such as snow, ice or plastic objects,
cannot be detected by the obstruction
sensor.)
Dynamic laser cruise control is canceled
if an obstruction is detected.
This product is a class l laser product complied with 21C.F.R part 1040.10
and 1040.11.

202 2-4. Using other driving systems
CAUTION
■When the laser radar sensor may not be correctly detecting the vehicle
ahead
Apply the brakes as necessary when any of the following types of vehicles
are in front of you.
As the sensor may not be able to correctly detect these types of vehicles,
the proximity alarm ( P. 575) will not be activated, and an accident may
result.
● The vehicle ahead has higher ground clearance, which means that the
placement of the reflectors is in a higher position.
● The rear section of the vehicle ahead is extremely dirty.
● The vehicle ahead or other vehicles around you are flinging up water or
snow.
● Excessive exhaust gas (black smoke) is coming from the vehicle ahead or
other vehicles around you, obscuring your front view.
● There is an obstruction (protective film, sticker, etc.) on the reflectors on
the vehicle ahead, or reflectors are not installed on the vehicle ahead or
are damaged.
● Heavy luggage in the luggage compartment or rear seats is causing the
nose of your vehicle to tilt up.
● Vehicles that cut in suddenly
● Vehicles traveling at low speeds
● Vehicles that are not moving
● Vehicles with small rear ends (trailers with no load on board etc.)
● Motorcycles traveling in the same lane
■ Conditions under which the vehicle -to-vehicle distance control may
not function correctly
Apply the brakes as necessary in the following conditions as the laser radar
sensor may not be able to correctly detect vehicles ahead, and an accident
may result.
● When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor

203
2-4. Using other
driving systems
2
When driving
CAUTION
■Conditions under which the vehicle -to-vehicle distance control may
not function correctly
● When your vehicle is pointing upwards (caused by a heavy load in the lug-
gage compartment, etc.)
● When the road curves or when the lanes are narrow
● When steering wheel operation or your position in the lane is unstable
● When towing a trailer
■ To ensure the laser radar sensor functions correctly
Do not do the following to the sensor as doing so may cause the sensor not
to function correctly and could result in an accident.
●Stick or attach anything to them
● Leave them dirty
● Disassemble, subject them to strong shocks
● Modify or paint them
● Replace them with non-genuine parts
NOTICE
■Handling the laser radar sensor
Observe the following to ensure the cruise control system can function effec-
tively.
●Keep the sensor clean at all times.
Clean the sensor with a soft cloth so you do not mark or damage them.
● Do not subject the sensor or surrounding area to a strong impact.
If the sensor moves even slightly off position, the system may malfunction.
If the sensor or surrounding area is subject to a strong impact, always
have the area inspected and adjusted by a Toyota dealer.
● Do not disassemble the sensor.
● Do not attach accessories or stickers to the sensor, surrounding area.

204
2-4. Using other driving systems
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.
This system works when the engine switch is in the ON position and
the shift lever is not in P.
Back and rear corner sensors work only when the shift lever is in
R.
Front corner sensors work when:
● 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 sensors
Rear corner sensors
Front corner sensors

205
2-4. Using other
driving systems
2
When driving
The distance and buzzer
■ When a sensor detects an obstacle.
The buzzer sounds.
Back 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.
Zone
Distance
shown as A 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

206 2-4. Using other driving systems
Rear corner sensors
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 (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.
ZoneDistance shown
as B 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
ZoneDistance shown
as C 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

207
2-4. Using other
driving systems
2
When driving
●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 ob stacle is detected at the same
way at the other end of the vehi cle, the buzzer will sound 3 times
then one continuous buzzer.
Sensors that operate and detection range
The following diagrams show the se nsor 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
A. Approx. 70.9 in. (1800 mm)
B. Approx. 33.5 in. (850 mm)
C. 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.