2022 TOYOTA PRIUS lane assist

221
PRIUS_OM_OM47F01U_(U)
4Driving
4-1. Before drivingDriving the vehicle ............. 222
Cargo and luggage ........... 233
Vehicle load limits ............. 236
Trailer towing..................... 237
Dinghy towing ................... 238
4-2. Driving procedures Power (ignition) switch ...... 239
EV drive mode .................. 246
Hybrid transmission........... 249
Turn signal lever................ 255
Parking brake .................... 256
4-3. Operating the lights and wipers
Headlight switch ................ 257
AHB (Automatic High Beam) ............................. 262
Fog light switch ................. 267
Windshield wipers and washer ............................ 269
Rear window wiper and washer ............................ 275 4-4. Refueling
Opening the fuel tank cap .................................. 277
4-5. Using the driving support systems
Toyota Safety Sense 2.0... 282
PCS (Pre-Collision System)........................... 291
LTA (Lane Tracing Assist) ............................. 302
RSA (Road Sign Assist) .... 317
Dynamic radar cruise control with full-speed
range............................... 321
Cruise control .................... 337
Driving mode select switch .............................. 342
BSM (Blind Spot Monitor) ........ 344
• The Blind Spot Monitor function ......................... 349
• The Rear Cross Traffic Alert function ................. 352
Intuitive parking assist....... 358
Parking Support Brake function ........................... 370
S-APGS (Simple Advanced Parking
Guidance System) .......... 381
Driving assist systems ...... 415
4-6. Driving tips Hybrid vehicle driving tips .................................. 422
Winter driving tips ............. 425

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PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
Toyota Safety Sense 2.0
◆PCS (Pre-Collision System)
P. 2 9 1
◆LTA (Lane Tracing Assist)
P. 3 0 2
◆AHB (Automatic High Beam)
P. 2 6 2
◆RSA (Road Sign Assist)
P. 3 1 7
◆Dynamic radar cruise control with full-speed range
P. 3 2 1
: If equipped
The Toyota Safety Sense 2.0 consists of the following drive
assist systems and contributes t o a safe and comfortable driv-
ing experience:
Driving assist system
WARNING
■ Toyota Safety Sense 2.0
The Toyota Safety Sense 2.0 is designed to operate under the assumption
that the driver will drive safely, and is designed to help reduce the impact to
the occupants and the vehicle in the case of a collision or assist the driver in
normal driving conditions.
As there is a limit to the degree of recognition accuracy and control perfor-
mance that this system can provide, do not overly rely on this system. The
driver is always responsible for paying attention to the vehicl e’s surround-
ings and driving safely.

302
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
LTA (Lane Tracing Assist)
While driving on a road with clear white (yellow) lane lines, t he LTA
system warns the driver if the vehicle may deviate from the cur rent
lane or course
*, and also can slightly operate the steering wheel to
help avoid deviation from the lane or course
*. Also, while the dynamic
radar cruise control with full-s peed range is operating, this s ystem will
operate the steering wheel to ma intain the vehicle’s lane position.
The LTA system recognizes white
(yellow) lane lines or a course
*
using the front camera. Addition-
ally, it detects preceding vehicles
using the front camera and radar.
*: Boundary between asphalt and the side of the road, such as grass, soil,
or a curb
: If equipped
Summary of functions

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PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
■Steering assist function
When the system determines
that the vehicle might depart
from its lane or course
*, the
system provides assistance as
necessary by operating the
steering wheel in small
amounts for a short period of
time to keep the vehicle in its
lane.
If the system detects that the
steering wheel has not been
operated for a fixed amount of
time or the steering wheel is not
being firmly gripped, a warning
is displayed on the multi-infor-
mation display and the function
is temporarily canceled.
*: Boundary between asphalt and the side of the road, such as gra ss, soil, or
a curb
■
Vehicle sway warning function
When the vehicle is swaying
within a lane, the warning
buzzer will sound and a mes-
sage will be disp layed on the
multi-information display to alert
the driver.

PRIUS_OM_OM47F01U_(U)
3094-5. Using the driving support systems
4
Driving
■Lane centering function
This function is linked with
dynamic radar cruise control
with full-speed range and pro-
vides the required assistance
by operating the steering wheel
to keep the vehicle in its current
lane.
When dynamic radar cruise con-
trol with full-speed range is not
operating, the lane centering
function does not operate.
In situations where the white
(yellow) lane lines are difficult to
see or are not visible, such as
when in a traffic jam, this func-
tion will operate to help follow a
preceding vehicle by monitoring
the position of the preceding
vehicle.
If the system detects that the steering wheel has not been oper ated for
a fixed amount of time or the steering wheel is not being firml y gripped,
a warning is displayed on the multi-information display and the function
is temporarily canceled.

PRIUS_OM_OM47F01U_(U)
3114-5. Using the driving support systems
4
Driving
LTA i n d i c a t o r
The illumination condition of the
indicator informs the driver of
the system operation status.
Illuminated in green: LTA sys-
tem is operating.
Flashing in orange: Lane
departure alert function is oper-
ating.
Steering control indicator and operation display of steering wh eel
operation support
When that steering wheel assistanc e of the steering assist function
or lane centering function is operating, the indicator illumina tes and
the operation display on the mul ti-information display is turned on.
Lane departure alert function display
Displayed when the multi-informat ion display is switched to the
driving assist system information screen.
*: Boundary between asphalt and the side of the road, such as gra ss, soil, or
a curb
Indications on combination meter
1
2
3
Inside of displayed lines is
whiteInside of displayed lines is
black
Indicates that the system is recog-
nizing white (yellow) lines or a
course
*. 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 a course* or is temporar-
ily canceled.

312
PRIUS_OM_OM47F01U_(U)
4-5. Using the driving support systems
Follow-up cruising display
Displayed when the multi-information display is switched to the driving
assist system information screen.
Indicates that steering assist of the lane centering function i s operating by
monitoring the position of a preceding vehicle.
When the follow-up cruising display is displayed, if the preced ing vehicle
moves, your vehicle may move in the same way. Always pay carefu l atten-
tion to your surroundings and operate the steering wheel as nec essary to
correct the path of the vehicle and ensure safety.
■ Operation conditions of each function
●Lane departure alert function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Vehicle speed is approximately 32 mph (50 km/h) or more.
*1
• System recognizes white (yellow) lane lines or a course*2. (When a white
[yellow] line or course
*2 is recognized on only one side, the system will
operate only for the recognized side.)
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P. 316)
*1: The function operates even if the vehicle speed is less than a pproxi-
mately 32 mph (50 km/h) when the lane centering function is ope rating.
*2: Boundary between asphalt and the side of the road, such as gra ss, soil,
or a curb
● Steering assist 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 (“LTA Steering Assist Mode”) in of the multi-
information display is set to “On”. ( P. 124)
• 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, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P. 315)
4

PRIUS_OM_OM47F01U_(U)
3134-5. Using the driving support systems
4
Driving
●Vehicle sway warning function
This function operates when all of the following conditions are met.
• Setting for (“Lane Sway Warning Status”) in of the multi- information display is set to “On”. ( P. 124)
• Vehicle speed is approximately 32 mph (50 km/h) or more.
• Width of traffic lane is approximately 9.8 ft. (3 m) or more.
• No system malfunctions are detected. ( P. 316)
● Lane centering function
This function operates when all of the following conditions are met.
• LTA is turned on.
• Setting for (“LTA Steering Assist Mode”) and (“LTA
Center Trace On/Off”) in of the multi-information display are set to
“On”. ( P. 124)
• This function recognizes white (yellow) lane lines or the posi tion of a pre-
ceding vehicle (except when the preceding vehicle is small, such as a
motorcycle).
• The dynamic radar cruise control with full-speed range is oper ating in
vehicle-to-vehicle distance control mode.
• Width of traffic lane is approximately 10 to 13 ft. (3 to 4 m) .
• Turn signal lever is not operated.
• Vehicle is not being driven around a sharp curve.
• No system malfunctions are detected. ( P. 316)
• Vehicle does not accelerate or decelerate by a fixed amount or more.
• Steering wheel is not operated with a steering force level suitable for changing lanes.
• ABS, VSC, TRAC and PCS are not operating.
• TRAC or VSC is not turned off.
• Hands off steering wheel warning is not displayed. ( P. 315)
• The vehicle is being driven in the center of a lane.
• Steering assist function is not operating.