2021 TOYOTA RAV4 PLUG-IN HYBRID Owners Manual

367
5
5-5. Using the driving support systems
Driving
■Lane centering function
This function is linked with dynamic
radar cruise contro l with full-speed
range and provides the required
assistance by operating the steer -
ing wheel to keep t he vehicle in its
current lane.
When dynamic radar cruise control with
full-speed range is not operating, the
lane centering function does not oper -
ate.
In situations where t he white (yellow)
lane lines are difficu lt to see or are not
visible, such as when in a traffic jam,
this function 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 operated for a fixed
amount of time or the steering wheel is
not being firmly gripped, a warning is
displayed on the multi-information dis -
play and the functi on is temporarily
canceled.
Press the LTA switch to turn the
LTA system on.
The LTA indicator illuminates and a
message is displayed on the multi-infor -
mation display.
Press the LTA switch again to turn
the LTA system off.
When the LTA system i s turned on or
off, operation of t he LTA system contin-
ues in the same condition the next time
the hybrid system is started.
Turning LTA system on

3685-5. Using the driving support systems
LTA indicator
The illumination condition of the indica-
tor informs the dri ver of the system
operation status.
Illuminated in whit e: LTA system is
operating.
Illuminated in green: Steering wheel
assistance o f the steering assist func-
tion or lane centering function is operat -
ing.
Flashing in orange: Lane departure
alert function is operating.
Operation display of steering
wheel operation support
Displayed when the multi-information
display is switched t o the driving sup-
port system information display.
Indicates that steering wheel assis -
tance of the steering assist function or
lane centering func tion is operating.
Both outer sides of the lane are dis -
played: Indicates that steering wheel
assist of the lane c entering function is
operating.
One outer side of the lane is displayed:
Indicates that steering wheel assist of
the steering assist function is operating.
Both outer sides of the lane are flash -
ing: Alerts the driver that their input is
necessary to stay in the center of the
lane (lane centering function).
Follow-up cruising display
Displayed when the multi-information
display is switched to the driving sup -
port system info rmation display.
Indicates that steerin g assist of the lane
centering function is operating by moni -
toring the position of a preceding vehi -
cle.
When the follow-up cruising display is
displayed, if the preceding vehicle
moves, your vehicl e may move in the
same way. Always pay careful attention
to your surroundings and operate the
steering wheel as necessary to correct
the path of the v ehicle and ensure
safety.
Lane departure alert function
display
Displayed when the multi-information
display is switched to the driving sup -
port system info rmation display.
Indications on multi-infor-
mation display
A
B
C
D

369
5
5-5. Using the driving support systems
Driving
Inside of displayed lines is white
Indicates that the system is recognizing
white (yellow) lines or a course*. When
the vehicle departs f rom its lane, the
white line display ed on the side the
vehicle departs from flashes orange.
Inside of displayed lines is black
Indicates that the syst em is not able to
recognize white (yellow) lines or a
course* or is temporarily canceled.
*: Boundary between asphalt and the
side of the road, su ch as grass, soil,
or a curb
■Operation conditions of each func -
tion
●Lane departure alert function
This function operates when all of the
following conditions are met.
• LTA is turned on. • Vehicle speed is approximately 50
km/h (32 mph) 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 oper -
ate only for the recognized side.)
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• Turn signal lever is not operated.
(Vehicles with BSM: Except when another vehicle is in the lane on the
side where the turn signal was oper -
ated) • Vehicle is not bei ng driven around a
sharp curve.
• No system malfunctions are detected. ( →P.371)*1: The function operates even if the
vehicle speed is less than approxi -
mately 50 km/h (32 mph) when the
lane centering func tion is operating.
*2: Boundary between asphalt and the
side of the road, su ch as grass, soil,
or a curb
●Steering assist function
This function operates when all of the
following conditions are met in addition
to the operation condi tions for the lane
departure alert function.
• Setting for “Steering Assist” in the
screen of the multi-information display
is set to “ON”. ( →P.179)
• Vehicle is not accel erated or deceler- ated by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for chang - ing lanes.
• ABS, VSC, TRC and PCS are not
operating. • TRC or VSC is not turned off.
• Hands off steering wheel warning is
not displayed. ( →P.370)
●Vehicle sway warning function
This function operates when all of the
following conditions are met.
• Setting for “Sway Warning” in the
screen of the multi-information display is set to “ON”. ( →P.179)

3705-5. Using the driving support systems
• 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 malfuncti ons are detected. ( →P.371)
●Lane centering function
This function operates when all of the
following conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in the screen of the multi-
information display are set to “ON”. ( →P.179)
• This function recognizes white (yel -
low) lane lines or the position 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 operating in vehi-
cle-to-vehicle distance control mode. • Width of traffic lane is approximately 3
to 4 m (10 to 13 ft.).
• Turn signal lever is not operated. • Vehicle is not being driven around a
sharp curve.
• No system malfuncti ons are detected. ( →P.371)
• Vehicle does not accelerate or decel-
erate by a fixed amount or more. • Steering wheel is n ot operated with a
steering force level suitable for chang-
ing lanes. • ABS, VSC, TRC an d PCS are not
operating.
• TRC or VSC is not turned off. • Hands off steering wheel warning is
not displayed. ( →P.370)
• The vehicle is being driven in the cen- ter of a lane.
• Steering assist func tion is not operat-
ing.
■Temporary cancelation of functions
●When operation conditions are no lon -
ger met, a function may be temporar - ily canceled. However, when the
operation conditions are met again,
operation of the fu nction is automati- cally restored. ( →P.369)
●If the operation conditions (→P.369)
are no longer met while the lane cen- tering function is op erating, the steer-
ing wheel may vibrate and the buzzer
may sound to indicate that the func - tion has been temporarily canceled.
However, if the “Aler t” customization
setting is set to “Steering wheel vibra - tion”, the system will notify the driver
by vibrating the steering wheel instead
of sounding the buzzer.
■Steering assist function/lane cen - tering function
●Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the func -
tion is operating or the function may not operate at all.
●The steering control of the function is overridden by the dr iver’s steering
wheel operation.
●Do not attempt to test the operation of
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to
hear due to external noise, audio play -
back, etc. Also, it may be difficult to feel steering wheel vibrations due to
the road conditions, etc.
●If the edge of the course* is not clear
or straight, the lane departure alert
function may not operate.
●Vehicles with BSM: It may not be pos-
sible for the syste m to determine if there is a danger of a collision with a
vehicle in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.*: Boundary between a sphalt and the
side of the road, such as grass, soil,
or a curb
■Hands off steering wheel warning
In the following situations, a warning message urging the driver to hold the
steering wheel and the symbol shown in
the illustration are displayed on the multi-information display to warn the

371
5
5-5. Using the driving support systems
Driving
driver. The warning stops when the sys -
tem determines that the driver holds the steering wheel. Always keep your hands
on the steering wheel when using this
system, regardless of warnings.
●When the system det ermines that the
driver is driving without holding the steering wheel wh ile the system is
operating
If the driver continues to keep their
hands off of the steering wheel, the
buzzer sounds, the driver is warned and
the function is te mporarily canceled.
This warning also operates in the same
way when the driver continuously oper -
ates the steering w heel only a small
amount.
The buzzer also sounds even if the alert
type is set to “Steering wheel vibration”.
●When the system det ermines that the
vehicle may not t urn and instead
depart from its lane while driving around a curve
Depending on the vehicle condition and road conditions, the warning may not
operate. Also, if t he system determines
that the vehicle is driving around a curve, warnings will occur earlier than
during straight-lane driving.
●When the system det ermines that the
driver is driving without holding the
steering wheel while the steering
wheel assist of the steering assist function is operating.
If the driver continues to keep their
hands off of the steering wheel and the
steering wheel assist is operating, the
buzzer sounds and the driver is warned.
Each time the buzze r sounds, the con-
tinuing time of the buzzer becomes lon -
ger.
The buzzer also sounds even if the alert
type is set to “Steering wheel vibration”.
■Vehicle sway wa rning function
When the system det ermines that the
vehicle is swaying while the vehicle sway warning function is operating, a
buzzer sounds and a warning message
urging the driver to r est and the symbol shown in the illustration are simultane -
ously displayed on the multi-information
display.
Depending on the vehicle and road con -
ditions, the warning may not operate.
■Warning message
If the following warning message is dis -
played on the multi-information display
and the LTA indicator illuminates in orange, follow the appropriate trouble -
shooting procedure. A lso, if a different
warning message is displayed, follow the instructions dis played on the screen.
●“LTA Malfunction Visit Your Dealer”
The system may not be operating prop-
erly. Have the vehicle inspected by any
authorized Toyota r etailer or Toyota
authorized repairer, or any reliable
repairer.
●“LTA Unavailable”
The system is temporarily canceled due
to a malfunction in a sensor other than
the front camera. Tu rn the LTA system
off, wait for a little while, and then turn
the LTA system back on.
●“LTA Unavailable at Current Speed”

3725-5. Using the driving support systems
The function canno t be used as the
vehicle speed exce eds the LTA opera-
tion range. Drive slower.
■Customization
Function settings can be changed.
( →P.186)
*: If equipped
RSA (Road Sign Assist)*
The RSA system recognizes
specific road signs using the
front camera and/or naviga -
tion system (when speed limit
information is available) to pro -
vide information to the driver
via the display.
If the system judges that the
vehicle is being driven over the
speed limit, performing prohib -
ited actions, etc. according to
the recognized road signs, it
notifies the driver through a
visual notification and notifica -
tion buzzer or steering wheel
vibration.
WARNING
■Before using the RSA
Do not rely solely upon the RSA sys- tem. RSA is a system which supports
the driver by providing information,
but it is not a replacement for a driver’s own vision and awareness.
Drive safely by always paying careful
attention to the traffic rules.

373
5
5-5. Using the driving support systems
Driving
When the front camera recognizes
a sign and/or information of a sign
is available from the navigation sys -
tem, the sign will be displayed on
the multi-inform ation display.
 When the driving support system
information display is selected, a
maximum of 3 signs can be dis -
played. ( →P.179)
 When a tab other than the driv-
ing support system information
display is selected, the following
types of road signs will be dis -
played. ( →P.179)
• Speed limit begins/ends sign
• Speed limit related information sign
(Expressway, Highway, Urban area,
Residential area)
• End of prohibition sign
• No-entry sign* (when notification is
necessary)
• Speed limit with supplemental sign
(Ramp way only)
*: For vehicles with navigation system
If signs other than speed limit signs are
recognized, they will be displayed in an
overlapping stack under the current
speed limit sign.
The following types of road signs,
including electronic signs and blink -
ing signs, are recognized.
A non-official (not m eeting the Vienna
Convention) or a recently introduced
traffic sign may not be recognized.
 Speed limit road signs
 Speed limit related information*
Indication on the multi-infor-
mation display
Supported types of road
signs
Speed limit begins/Maxi -
mum speed zone begins
Speed limit ends/Maximum
speed zone ends
Expressway entrance
Expressway exit

3745-5. Using the driving support systems
*: Displayed when a sign is recognized
but speed limit information for the
road is not available from the naviga -
tion system
 No-overtaking road signs
 Other road signs
*: For vehicles with navigation system
Speed limit with supplemental
mark*1
*1: Displayed simultaneously with
speed limit
*2: Contents not recognized.
*3: If the turn signal indicator is not
operated when changing lanes, the
mark does not display.
In the following si tuations, the RSA
Highway entrance
Highway exit
Urban area beginning
Urban area ending
Urban area beginning
Urban area ending
Residential area beginning
Residential area ending
No overtaking begins
No overtaking ends
No-entry*
End of prohibition
Stop
Wet
Rain
Ice
Supplemental mark
exists*2
Exit ramp on right*3
Exit ramp on left*3
Time
Notification function