2016 TOYOTA PRIUS Owners Manual

PRIUS_OM_OM47A29U_(U)
3134-5. Using the driving support systems
4
Driving
●Vehicles with small rear ends (trailers with no load on board, etc.)
● Motorcycles traveling in the same lane
● When water or snow thrown up by the surrounding vehicles hinders the
detecting of the sensor
●When your vehicle is pointing upwards
(caused by a heavy load in the luggage
compartment, etc.)
● Preceding vehicle has an extremely high
ground clearance

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PRIUS_OM_OM47A29U_(U)
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■Conditions under which the vehicle -to-vehicle distance control mode
may not function correctly
Operate the brake pedal (or accelerator pedal operation depending on the sit-
uation) as necessary in the following conditions as the radar sensor may not
be able to correctly detect vehicles ahead, which may lead to an accident
resulting in death or serious injury.
● When the vehicle ahead of you decelerates suddenly
●
When the road curves or when the lanes
are narrow
● When steering wheel operation or your
position in the lane is unstable

315
PRIUS_OM_OM47A29U_(U)
4-5. Using the driving support systems
4
Driving
Cruise control
Use the cruise control to maintain a set speed without depressing the
accelerator pedal.
Use the cruise control on freeways and highways.
Indicators
Cruise control switch
Set speed
Press the “ON-OFF” button to
activate the cruise control.
Cruise control indicator will come
on.
Press the button again to deacti-
vate the cruise control.
: If equipped
Summary of functions
1
2
3
Setting the vehicle speed
1

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PRIUS_OM_OM47A29U_(U)
4-5. Using the driving support systems
Accelerate or decelerate the
vehicle to the desired speed
(above approximately 25 mph
[40 km/h]) and push the lever
down to set the speed.
Cruise control “SET” indicator will
come on.
The vehicle speed at the moment
the lever is released becomes the
set speed.
2

PRIUS_OM_OM47A29U_(U)
3174-5. Using the driving support systems
4
Driving
To change the set speed, operate the lever until the desired set speed
is obtained.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired direc-
tion.
Large adjustment: Hold the lever in
the desired direction.
The set speed will be increased or decreased as follows:
Fine adjustment: By approximately 1 mph (1.6 km/h) or 1 km/h (0.6 mph)
each time the lever is operated.
Large adjustment: The set speed can be increased or decreased continu-
ally until the lever is released.
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also canceled
when the brake pedal is
depressed.
Pushing the lever up resumes
the constant speed control.
However, resuming is available
when the vehicle speed is more
than approximately 25 mph
(40 km/h).
Adjusting the set speed
1
2
Canceling and resuming the constant speed control
1
2

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PRIUS_OM_OM47A29U_(U)
4-5. Using the driving support systems
■Cruise control can be set when
●The shift position is in D.
● Vehicle speed is above approximately 25 mph (40 km/h).
■ Accelerating after setting the vehicle speed
●The vehicle can be accelerated by operating accelerator pedal. After accel-
erating, the set speed resumes.
● Even without canceling the cruise control, the set speed can be increased
by first accelerating the vehicle to the desired speed and then pushing the
lever down to set the new speed.
■ Automatic cancelation of cruise control
Cruise control is automatically canceled in any of the following situati\
ons.
●Actual vehicle speed falls more than approximately 10 mph (16 km/h) below
the set speed.
At this time, the memorized set speed is not retained.
● Actual vehicle speed is below approximately 25 mph (40km/h).
● VSC is activated.
● TRAC is activated for a period of time.
● When the VSC or TRAC system is turned off by pressing the VSC OFF
switch.
● Intelligent Clearance Sonar is operated. (if equipped)
■ If “Check Cruise Control System Visit Your Dealer” is displayed on the
multi-information display
Press the “ON-OFF” button once to deactivate the system, and then press
the button again to reactivate the system.
If the cruise control speed cannot be set or if the cruise control cancels imme-
diately after being activated, there may be a malfunction in the cruise control
system. Have the vehicle inspected by your Toyota dealer.

PRIUS_OM_OM47A29U_(U)
3194-5. Using the driving support systems
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Driving
WARNING
■To avoid operating the cruise control by mistake
Switch the cruise control off using the “ON-OFF” button when not in use.
■ Situations unsuitable for cruise control
Do not use cruise control in any of the following situations.
Doing so may result in loss of control and could cause an accident resulting
in death or serious injury.
●Roads where there are pedestrians, cyclers, etc.
● In heavy traffic
● On roads with sharp bends
● On winding roads
● On slippery roads, such as those covered with rain, ice or snow
● On sharp inclines or declines
Vehicle speed may exceed the set speed when driving down a steep hill.

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Driving mode select switch
Repeatedly press the switch until t he system changes to the intended
drive mode.
Each time the switch is pressed, the drive mode changes in the following order
and the
“ECO MODE” and “PWR MODE” indicators turn on or off accord-
ingly.
In response to driving conditions, one of 3 drive modes can be
selected.
Driving modes