2017 TOYOTA PRIUS PLUG-IN HYBRID steering

3865-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
LDA indicator
Illuminates when the LDA sys-
tem is on.
Steering control indicator and
operation display of steering
wheel operation support
When that steering wheel
assistance of the steering con-
trol function is operating, the
indicator illuminates and the
operation display on the multi-
information display is turned on.
Lane departure alert function display
Displayed when the multi-information display is switched to the
screen. (P. 241)
Indications on combination meter
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Inside of displayed white lines
is whiteInside of displayed white lines
is black
Indicates that the system is recog-
nizing white (yellow) lines. When
the vehicle departs from its lane,
the white line displayed on the
side the vehicle departs from
flashes orange.Indicates that the system is not
able to recognize white (yellow)
lines or is temporarily canceled.

3875-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
■Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LDA is turned on.
• Vehicle speed is approximately 50 km/h (32 mph) or more.
• System recognizes white (yellow) lines.
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• Turn signal lever is not operated.
• Vehicle is driven on a straight road or around a gentle curve with a radius
of more than approximately 150 m (492 ft.).
• No system malfunctions are detected. (P. 390)
●Steering control function
This function operates when all of the following conditions are met in addi-
tion to the operation conditions for the lane departure alert function.
• Setting for “ (LDA Steering Assist Mode)” in the screen of
the multi-information display is set to “On”. (P. 242)
• Vehicle is not accelerated or decelerated by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for
changing lanes.
• ABS, VSC, TRC and PCS are not operating.
• TRC or VSC is not turned off.
• Hands off steering wheel alert is not displayed. (P. 388)
●Vehicle sway warning
This function operates when all of the following conditions are met.
• Setting for “ (Lane Sway Warning Status)” in the screen of
the multi-information display is set to “On”. (P. 242)
• Vehicle speed is approximately 50 km/h (32 mph) or more.
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• No system malfunctions are detected. (P. 390)

3885-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)■Temporary cancelation of functions
●When operation conditions are no longer met, a function may be temporarily
canceled. However, when the operation conditions are met again, operation
of the function is automatically restored. (P. 387)
●When operation conditions are no longer met while operating the steering
control function, a buzzer may sound to indicate that a function may be tem-
porarily canceled. (P. 3 8 7 )
■Steering control function
Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the function is operating or the function may not
operate at all.
■Lane departure alert function
The warning buzzer may be difficult to hear due to external noise, audio play-
back, etc.
■Hands off steering wheel alert
When the system determines that the driver has removed the hands from the
steering wheel while the steering control function is operating, a warning
message is displayed on the multi-information display.
If the driver continues to keep the hands off of the steering wheel, the buzzer
sounds, a warning message is displayed and the function is temporarily can-
celed. This alert also operates in the same way when the vehicle is driven
with the steering wheel lightly gripped. However, depending on the road con-
ditions, etc., the function may not cancel.
■White (yellow) lines are only on one side of road
The LDA system will not operate for the side on which white (yellow) lines
could not be recognized.

3915-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
If a different warning message is displayed, follow the instructions displayed
on the screen.
■Customization
The following settings can be changed.
For how to change settings, refer to P. 242.
“Lane Departure Alert
System is Unavailable
Below Approx.
50 km/h.”The LDA system cannot be used as
the vehicle speed is less than approxi-
mately 50 km/h (32 mph).
Drive the vehicle at approximately
50 km/h (32 mph) or more.
Warning messageDetails/Actions
FunctionSetting details
Lane departure alert functionAdjust alert sensitivity
Steering control functionTurn steering wheel assistance on and off
Vehicle sway warning functionTurn function on and off
Adjust alert sensitivity

4115-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
■Conditions under which the vehicle-to-vehicle distance control mode
may not function correctly
In the case of the following conditions, operate the brake pedal (or accelera-
tor pedal, depending on the situation) as necessary.
As the sensor may not be able to correctly detect vehicles ahead, the system
may not operate properly.
●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

4375-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
5
Driving
Approximately 100 cm (3.3 ft.)
Approximately 150 cm (4.9 ft.)
Approximately 60 cm (2.0 ft.)
Approximately 100 cm (3.3 ft.)
• The detection range is shown in
the illustration to the right. How-
ever, the sensor will not detect
the obstacle if it is too close.
• For details regarding obstacle
detection in the side areas.
( P. 438)
• The distance at which an obsta-
cle can be detected and whether
it can be detected depends on
the shape and condition of the
obstacle.
The obstacle detection range can be changed. ( P. 708)
■Operation conditions
The power switch is turned on
● Front corner sensors:
• Shift position is not in P
• Vehicle speed is approximately 10 km/h (6 mph) or less
● Front side sensors/rear side sensors:
• Shift position is not in P
• Vehicle speed is approximately 10 km/h (6 mph) or less
• Steering wheel is turned approximately 90  or more
● Front center sensors:
• Shift position is not in P or R
• Vehicle speed is approximately 10 km/h (6 mph) or less
● Rear corner sensors/rear center sensors:
Shift position is in R
■ Toyota parking assist-sensor pop-up display
 P. 460
Detection range of the sensors
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4565-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
S-IPA (Simple Intelligent Parking Assist
System)
■Function summary
The Simple Intelligent Parking Assist System automatically oper-
ates the steering wheel to provide support when backing into an
area near a target parking spot, and when departing from a parallel
parking spot. (Changing the shift position and speed adjustment
when moving forward or backing up are not performed automati-
cally.)
● The Simple Intelligent Parking Assist System does not park the
vehicle automatically. It is a system that provides support when
pulling out of a perpendicular or parallel parking spot.
● The Simple Intelligent Parking Assist System provides steering
wheel operation assistance to guide the vehicle toward the
selected intended parking spot. The selected intended parking
spot may not always be reachable, depending on road and vehi-
cle conditions at the time of parking, and the distance to the
intended parking spot.
■Linking with the Intelligent Clearance Sonar function
While the Simple Intelligent Parking Assist System is operating, if
the system detects an obstacle that could result in a collision, the
emergency brakes operate, regardless of whether the Intelligent
Clearance Sonar function is on or off. ( P. 458)
: If equipped
Simple Intelligent Parking Assist System
WARNING
●When backing up or proceeding forward, be sure to directly confirm the
safety of the area to the front or rear, and the area around the vehicle, and
slowly back up or proceed forward while adjusting the vehicle speed by
depressing the brake pedal.
● If it seems the vehicle may make contact with a pedestrian, another vehi-
cle or any other obstacles, stop the vehicle by depressing the brake pedal,
and then press the S-IPA switch ( P. 459) to turn the system off.

4605-5. Using the driving support systems
PRIUS PHV_OM_OM47A89E_(EE)
The guidance screen is displayed on the multi-information display.
Assistance level indicator
Displays a gauge indicating the
level until the vehicle’s stopping
position/the position at which assist
control ends.
Stop display
When illuminated, depress the
brake pedal and stop the vehicle at
once.
Operation display area
Displays the operating condition of the Simple Intelligent Parking Assist
System.
Advice display
Follow the instructions on the display and perform any indicated opera-
tions. As an example, the illustration shows the display indicating it is nec-
essary to depress the brake pedal in order to control the vehicle speed and
to confirm the safety of your surroundings.
S-IPA switch icon
Displayed when the assist mode can be changed and the system can be
turned off or on using the S-IPA switch.
Steering wheel auto operation display
Displays when the steering wheel auto operation is being performed.
Toyota parking assist-sensor display/door position (open/close) dis-
play
P. 433
■S-IPA indicator inside the meter (P. 203)
This indicator illuminates when the steering wheel auto operation is being
performed by the Simple Intelligent Parking Assist System. After control
ends, the indicator blinks for a short period of time and then turns off.
■Toyota parking assist-sensor pop-up display
While the Simple Intelligent Parking Assist System is operating, if the Toyota
parking assist-sensor function detects an obstacle, the Toyota parking assist-
sensor display automatically pops up on the guidance screen (P. 433),
regardless of whether the Toyota parking assist-sensor function is on or off.
(P. 432)
Guidance screen
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