2012 TOYOTA PRIUS Owners Manual

265
2-3. Operating the lights and windshield wipers
2
When driving
Headlight cleaner switch
: If equipped
■The headlight cleaners can be operated when
The “POWER” switch is in ON mode and the headlight switch is turned on.
If equipped, the headlight switch is in the “AUTO” position and the headlight
is on.
■ Windshield washer linked operation
Only for the first time when the windshield washer is operated with the
“POWER” switch in ON mode and the headlights on, the headlight cleaners
will operate once. ( P. 258)
NOTICE
■When the washer fluid tank is empty
Do not press the switch continually as the washer fluid pump may overhea\
t.
Washer fluid can be sprayed on the headlights.
Press the switch to clean the
headlights.

266
2-4. Using other driving systems
Cruise control
: If equipped
Use the cruise control to maintain a set speed without depressing
the accelerator pedal.
Cruise control switch
Indicators
■ Setting the vehicle speed
Press the “ON-OFF” button to
activate the cruise control.
Cruise control indicator will
come on.
Press the button again to
deactivate the cruise control.
Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.
“SET” indicator will come on.
The vehicle speed at the
moment the lever is released
becomes the set speed.
STEP 1
STEP 2

267
2-4. Using other
driving systems
2
When driving
■Adjusting the set speed
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
direction.
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) each time
the lever is operated.
Large adjustment: The set speed can be increased or
decreased continually until the lever is released.
■ Canceling and resuming the constant speed control
Pulling the lever toward you
cancels the constant speed
control.
The speed setting is also can-
celed when the brakes are
applied.
Pushing the lever up
resumes the constant
speed control.
Resuming is available when
the vehicle speed is more
than approximately 25 mph
(40 km/h).
ITO24P105
ITO24P106

268 2-4. Using other driving 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 normally. After acceleration, 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 cruise control cancelation
Cruise control will stop maintaining the vehicle speed in any of the following
situations.
●Actual vehicle speed falls more than approximately 10 mph (16 km/h)
below the preset vehicle speed.
At this time, the memorized set speed is not retained.
● Actual vehicle speed is below approximately 25 mph (40 km/h).
● Enhanced VSC is activated.
■ If the cruise control indicator light flashes
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
immediately after being activated, there may be a malfunction in the cruise
control system. Have the vehicle inspected by your Toyota dealer.

269
2-4. Using other
driving systems
2
When driving
CAUTION
■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.
●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 hills
Vehicle speed may exceed the set speed when driving down a steep hill.
● During emergency towing

270
2-4. Using other driving systems
Dynamic radar cruise control
: If equipped
Dynamic radar cruise control supplements conventional cruise con-
trol with a vehicle-to-vehicle dist ance control. In vehicle-to-vehicle
distance control mode, the vehicle automatically accelerates or
decelerates in order to maintain a set following distance from vehi-
cles ahead.
Vehicle-to-vehicle distance
button
Display
Set speed
Indicators
Cruise control switch

271
2-4. Using other
driving systems
2
When driving
■Setting the vehicle speed (vehicle-to-vehicle distance con-
trol mode)
Press the “ON-OFF” button to
activate the cruise control.
Radar cruise control indicator
will come on.
Press the button again to
deactivate the cruise control.
Accelerate or decelerate the
vehicle to the desired speed,
and push the lever down to set
the speed.
“SET” indicator will come on.
The vehicle speed at the
moment the lever is released
becomes the set speed.
STEP 1
STEP 2

272 2-4. Using other driving systems
■Adjusting the set speed
To change the set speed, operate the lever until the desired set
speed is displayed.
Increases the speed
Decreases the speed
Fine adjustment: Momentarily
move the lever in the desired
direction.
Large adjustment: Hold the
lever in the desired direction.
In the vehicle-to-vehicle distance control mode, the set speed will be
increased or decreased as follows:
• When the set speed is shown in “MPH” Fine adjustment: By approximately 1 mph (1.6 km/h) each time the
lever is operated
Large adjustment: By approximately 5 mph (8 km/h) for each 0.75
seconds the lever is held
• When the set speed is shown in “km/h” Fine adjustment: By approximately 0.6 mph (1 km/h) each time the
lever is operated
Large adjustment: By approximately 3.1 mph (5 km/h) for each 0.75
seconds the lever is held
In the constant speed control mode ( P. 278), the set speed will be
increased or decreased as follows:
Fine adjustment: By approximately 1 mph (1.6 km/h) each time the
lever is operated
Large adjustment: The set speed can be increased or decreased con-
tinually until the lever is released.
ITO24P126