2013 TOYOTA SEQUOIA cruise control

217
2-4. Using other
driving systems
2
When driving
CAUTION
■Before using dynamic laser cruise control
Do not overly rely on vehicle-to-vehicle distance control.
Be aware of the set speed. If automatic deceleration/acceleration is not
appropriate, adjust the vehicle speed, as well as the distance between your
vehicle and vehicles ahead by applying the brakes etc.
■ Cautions regarding the driving assist systems
Observe the following precautions.
Failure to do so may cause an accident resulting in death or serious injury.
●Assisting the driver to measure following distance
The dynamic laser cruise control is only intended to help the driver in
determining the following distance between the driver’s own vehicle and a
designated vehicle traveling ahead. It is not a mechanism that allows care-
less or inattentive driving, and it is not a system that can assist the driver in
low-visibility conditions. It is still necessary for driver to pay close attention
to the vehicle’s surroundings.
● Assisting the driver to judge proper following distance
The dynamic laser cruise control determines whether the following dis-
tance between the driver’s own vehicle and a designated vehicle traveling
ahead is appropriate or not. It is not capable of making any other type of
judgement. Therefore, it is absolutely necessary for the driver to remain
vigilant and to determine whether or not there is a possibility of danger in
any given situation.
● Assisting the driver to operate the vehicle
The dynamic laser cruise control has no capability to prevent or avoid a
collision with a vehicle traveling ahead. Therefore, if there is ever any dan-
ger, the driver must take immediate and direct control of the vehicle and
act appropriately in order to ensure the safety of all involved.
■ To avoid inadvertent cruise control activation
Switch the cruise control off using the ON-OFF button when not in use.

218 2-4. Using other driving systems
CAUTION
■Situations unsuitable for dynamic laser cruise control
Do not use dynamic laser cruise control in any of the following situations.
Doing so may result in inappropriate speed control and could cause an acci-
dent resulting in death or serious injury.
●In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On steep downhills, or where there are sudden changes between sharp up
and down gradients
Vehicle speed may exceed the set speed when driving down a steep hill.
● At entrances to expressways
● When weather conditions are bad enough that they may prevent the sen-
sors from functioning correctly (fog, rain, snow, sandstorm, direct sunlight,
etc.)
● When an approach warning buzzer is heard often
● When your vehicle is towing a trailer or during emergency towing

220 2-4. Using other driving systems
CAUTION
■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 a fatal or
serious accident may result.
● When water or snow thrown up by the surrounding vehicles hinders the
functioning of the sensor
● 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 the vehicle ahead of you decelerates suddenly
● When your vehicle is towing a trailer or during emergency towing
■ Handling the laser radar sensor
Observe the following to ensure the cruise control system can function effec-
tively.
Otherwise, the system may not function correctly and could result in an acci-
dent.
●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.
● Do not modify or paint the sensor.
● Do not replace them with non-genuine parts.

297
2-5. Driving information
2
When driving
CAUTION
■
To avoid accident or injury
●Do not apply the brakes suddenly as you may skid, resulting in jackknifing
and loss of vehicle control. This is especially true on wet or slippery sur-
faces.
● Do not exceed the trailer hitch assembly weight, gross vehicle weight,
gross axle weight and trailer tongue weight capacities.
● Do not use cruise control when towing.
● Slow down and downshift before descending steep or long downhill
grades. Do not make sudden downshifts while descending steep or long
downhill grades.
● Vehicle-trailer instability is more likely on steep long downhills. Before
descending steep or long downhill grades, slow down and downshift. Do
not make sudden downshifts when descending steep or long downhill
grades. Avoid holding the brake pedal down too long or applying the
brakes too frequently. This could cause the brakes to overheat and result
in reduced braking efficiency.
● Do not tow a trailer when the temporary spare tire is installed on your vehi-
cle.
■ Hitch
Trailer hitch assemblies have different weight capacities established by the
hitch manufacturer. Even though the vehicle may be physically capable of
towing a higher weight, the operator must determine the maximum weight
rating of the particular hitch assembly and never exceed the maximum
weight rating specified for the trailer-hitch. Exceeding the maximum weight
rating set by the trailer-hitch manufacturer can cause an accident resulting in
death or serious personal injuries.
■ When towing a trailer
Toyota recommends trailers with brakes that conform to any applicable fed-
eral and state/provincial regulations.
● If the gross trailer weight exceeds unbraked TWR, trailer brakes are
required. Toyota recommends trailers wi th brakes that conform to all appli-
cable federal and state/provincial regulations.
● Never tap into your vehicle’s hydraulic system, as this will lower the vehi-
cle’s braking effectiveness.

604 4-3. Do-it-yourself maintenance
28 ECU-B17.5 AMultiplex communication system,
Multiport fuel injection system/
sequential multiport fuel injection
system, auto anti-glare inside rear
view mirror, power front driver’s
seat, power tilt and power tele-
scopic, power back door, gateway
ECU
29 DOME 7.5 AInterior lights, personal lights, van-
ity lights, engine switch light, foot
light, door courtesy lights, acces-
sory meter, power back door,
power third seat
30 HEAD LH 15 ALeft-hand headlight
(high beam)
31 HEAD LL 15 ALeft-hand headlight
(low beam)
32 INJ 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, ignition system
33 MET 7.5 A Gauges and meters
34 IGN 10 ASRS airbag system, multiport fuel
injection system/sequential multi-
port fuel injection system, cruise
control system, gateway ECU
35 HEAD RH 15 ARight-hand headlight
(high beam)
36 HEAD RL 15 ARight-hand headlight
(low beam)
37 EFI NO.2 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, leak detection pump
38 DEF I/UP 5 A No circuit
FuseAmpereCircuit

648 5-2. Steps to take in an emergency
(if equipped)Indicates that the
dynamic laser cruise
control system is unable
to judge vehicle-to-vehi-
cle distance.
A buzzer also sounds. If the windshield wipers
are on, turn them off or
set them to either the
intermittent.
(Flashing)
(if equipped) Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-
vehicle distance control
mode).
Slow the vehicle by
applying the brakes.
(if equipped) (Flashing) Indicates that the
dynamic laser cruise
control system is mal-
function.
A buzzer also sounds. Press the ON-OFF but-
ton once to deactivate
the system, and then
press the button again
to reactivate the sys-
tem.
(if equipped) Indicates that the Blind
Spot Monitor sensor is
dirty or covered with ice.
A buzzer also sounds. Clean the sensor.
Indicates that the Blind
Spot Monitor sensor has
been exposed to very
high or low temperatures. A buzzer also sounds. Wait for sensor to cool
down or warm up.
(if equipped) Indicates that the Blind
Spot Monitor system is
malfunction.
A buzzer also sounds. Press the ON-OFF but-
ton once to deactivate
the system, and then
press the button again
to reactivate the sys-
tem.
Warning messageDetailsCorrection procedure

5
When trouble arises
649
5-2. Steps to take in an emergency
*: Refer to the separate “Scheduled Maintenance Guide” or “Owner’s Manual
Supplement” for the maintenance interval applicable to your vehicle.
■ Warning light display in vehicle -to-vehicle distance control mode
In the following cases, the warning light may not be displayed even if vehi-
cle-to-vehicle distance closes.
● When your vehicle and the vehicle ahead are traveling at the same
speed or the vehicle ahead is traveling more quickly than your vehicle
● When the vehicle ahead is traveling at a very low speed
● Immediately after cruise control speed is set
● At the instant the accelerator pedal is depressed

5
When trouble arises
659
5-2. Steps to take in an emergency
CAUTION
■Speed limit when using the temporary spare tire
Do not drive at speeds in excess of 50 mph (80 km/h) when a temporary
spare tire is installed on the vehicle.
The temporary spare tire is not designed for driving at high speeds. Fail-
ing to observe this precaution may lead to an accident causing death or
serious injury.
■Driving with tire chains and the temporary spare tire
Do not fit tire chains to the temporary spare tire.
Tire chains may damage the vehicle body and adversely affect driving
performance.
■When the temporary spare tire is attached
The vehicle speed may not be correctly detected, and the following sys-
tems may not operate correctly:
●ABS & Brake assist
●VSC
●TRAC
●A-TRAC
●AUTO LSD
●Cruise control
●Navigation system
Also, not only can the following syste m not be utilized fully, it may actu-
ally negatively effect t he drive-train components:
●4WD system