Page 188 of 624

188
PRIUS v_OM_OM47B23U_(U)
4-2. Driving procedures
NOTICE
■Hybrid battery (tract ion battery) charge
If the shift position is in N, the hybrid battery (traction battery) will not be
charged. To help prevent the battery from discharging, avoid leaving the N
position selected for an extended period of time.
■ Situations where shift control system malfunctions are possible
If any of the following situations occurs, shift control system malfunctions
are possible.
Immediately stop the vehicle in a safe place on level ground, apply the park-
ing brake, and then contact your Toyota dealer.
● Vehicles without multi-information display:
When the “P LOCK MALFUNCTION W H E N PA R K I N G, PA R K I N F L AT
PLACE AND APPLY PARKING BRAKE SECURELY” warning message
appears on the instrument cluster. ( P. 494)
● Vehicles without multi-information display:
When the parking lock system warning light is illuminated.
● Vehicles with multi-information display:
When the warning message indicating the shift control system appears on
the multi-information display. ( P. 508)
● When everything except the shift position indicator selection frame is illu-
minated.
● When the shift position indicator remains off.
■ Notes regarding shift lever and P position switch operation
Avoid repeatedly operating the shift lever and P position switch in quick suc-
cession.
The system protection function may activate and it will not be temporarily
possible to shift the shift position other than P. If this happens, please wait
for approximately 20 seconds before attempting to change the shift position
again.
Page 214 of 624

214
PRIUS v_OM_OM47B23U_(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 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 co ntrol 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 (40km/h).
● Enhanced VSC is activated.
■ If the cruise control indicator light comes on in yellow (vehicles without
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.
■ If the warning message for the crui se control is shown (vehicles with
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.
Page 216 of 624
216
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
Dynamic radar cruise control
Dynamic radar cruise control supple ments conventional cruise control
with a vehicle-to-vehicle distance control. In vehicle-to-vehicle dis-
tance control mode, the vehicle automatically accelerates or deceler-
ates in order to maintain a set fo llowing distance from vehicles ahead.
Vehicle-to-vehicle distance
button
Indicators
Set speed
Display
Cruise control switch
: If equipped
Summary of functions
1
2
3
4
5
Page 218 of 624

218
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
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 direc-
tion.
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 sec-
onds the lever is held
In the constant speed control mode ( P. 222), 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 continu-
ally until the lever is released.
Adjusting the set speed
1
2
Page 219 of 624
PRIUS v_OM_OM47B23U_(U)
2194-5. Using the driving support systems
4
Driving
Pressing the button changes the vehi cle-to-vehicle distance as fol-
lows:
Long
Medium
Short
The vehicle-to-vehicle distance is
set automatically to long mode
when the power switch is turned to
ON mode.
If a vehicle is running ahead of
you, the preceding vehicle mark
will also be displayed.
Select a distance from the table below. Note that the distances shown
correspond to a vehicle speed of 50 mph (80 km/h). Vehicle-to-vehicle
distance increases/decreases in accordance with vehicle speed.
Changing the vehicle-to-vehicle distance
Preceding vehicle mark
1
2
3
Vehicle-to-vehicle distance settings
Distance optionsVehicle-to-vehicle distance
LongApproximately 160 ft. (50 m)
MediumApproximately 130 ft. (40 m)
ShortApproximately 100 ft. (30 m)
Page 221 of 624

PRIUS v_OM_OM47B23U_(U)
2214-5. Using the driving support systems
4
Driving
Example of constant speed cruising
When there are no vehicles ahead
The vehicle travels at the speed set by the driver. The desired vehicle-to-
vehicle distance can also be set by operating the vehicle-to-vehicle dis-
tance control.
Example of deceleration cruising
When the vehicle ahead is drivi ng slower than the set speed
When a vehicle is detected running ahead of you, the system automatically
decelerates your vehicle. When a greater reduction in vehicle speed is
necessary, the system applies the brakes. A warning tone warns you when
the system cannot decelerate sufficiently to prevent your vehicle from clos-
ing in on the vehicle ahead.
Example of follow-up cruising
When following a vehicle driving slower than the set speed
The system continues follow-up cruising while adjusting for changes in the
speed of the vehicle ahead in order to maintain the vehicle-to-vehicle dis-
tance set by the driver.
Example of acceleration
When there are no longer any vehi cles ahead driving slower than
the set speed
The system accelerates until the set speed is reached. The system then
returns to constant speed cruising.
When your vehicle is too close to a vehicle ahead, and sufficient auto-
matic deceleration via the cruise control is not possible, the display
will flash and the buzzer will sound to alert the driver. An example of
this would be if another driver cuts in front of you while you are follow-
ing a vehicle. Apply the brakes to ensure an appropriate vehicle-to-
vehicle distance.
■Warnings may not occur when
In the following instances, there is a possibility that the warnings will
not occur:
● When the speed of the vehicle ahead matches or exceeds your
vehicle speed
● When the vehicle ahead is traveling at an extremely slow speed
● Immediately after the crui se control speed was set
● At the instant the accelerator is applied
Approach warning
1
2
3
4
Page 229 of 624
229
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
4
Driving
LDA (Lane Depar ture Alert)
While driving on a road that has la ne markers, this system recognizes
the lane markers using a camera as a sensor to alert the driver when
the vehicle deviated from its lane. If the system judges that the vehicle
has deviated from its lane, it alerts the driver using a buzzer and indi-
cations on the multi-information display.
Camera sensor
Display
Indicator
LDA switch
: If equipped
Summary of function
1
2
3
Page 230 of 624
230
PRIUS v_OM_OM47B23U_(U)
4-5. Using the driving support systems
When the system judges that the vehicle is deviating from the current
traffic lane, an alert buzzer sounds and it prompts cautions from the
display screen of the multi-information display.
When the alert buzzer sounds, please check the surrounding road situa-
tion and return near the center of the white (yellow) lane markers by safely
operating the steering wheel.
Press the LDA switch to activate
the LDA.
LDA indicator will come on and
lane lines will be displayed on the
multi-information display.
Press the switch again to deacti-
vate the LDA.
The LDA will remain on or off even
if the power switch is turned off.
Lane departure alert function
Alert buzzer
Turning the LDA on