2021 TOYOTA RAV4 PHEV Owners Manual

359
5
5-5. Using the driving support systems
Driving
The illustration shows an image of
detectable objects.
■Cancelation of the pre-collision
braking
If either of the foll owing occur while the
pre-collision braking function is operat -
ing, it will be canceled:
●The accelerator pedal is depressed
strongly.
●The steering wheel is turned sharply
or abruptly.
■Conditions under which the system may operate even if there is no pos -
sibility of a collision
●In some situations such as the follow-
ing, the system may determine that
there is a possibility of a frontal colli - sion and operate.
• When passing a det ectable object,
etc. • When changing lanes while overtak -
ing a detectable object, etc.
• When approaching a detectable object in an adjacen t lane or on the
roadside, such as when changing the
course of travel or driving on a wind - ing road
• When rapidly closin g on a detectable
object, etc. • When approaching objects on the
roadside, such as detectable objects,
guardrails, utility pol es, trees, or walls
• When there is a detectable object or other object by the roadside at the
entrance of a curve
• When there are pa tterns or paint in
front of your vehicle that may be mis -
taken for a detectable object • When the front of your vehicle is hit by
water, snow, dust, etc.
• When overtaking a d etectable object that is changing lanes or making a
right/left turn
• When passing a detectable object in
an oncoming lane th at is stopped to
make a right/left turn
• When a detectable object approaches
very close and then stops before entering the path of your vehicle
• If the front of your ve hicle is raised or
lowered, such as when on an uneven
or undulating road surface • When driving on a road surrounded by
a structure, such as in a tunnel or on
an iron bridge

3605-5. Using the driving support systems
• When there is a m etal object (man-
hole cover, steel plate, etc.), steps, or a protrusion in front of your vehicle
• When passing under an object (road
sign, billboard, etc.)
• When approaching an electric toll gate
barrier, parking area barrier, or other barrier that opens and closes
• When using an automatic car wash
• When driving through or under objects that may contact your vehicle, such as
thick grass, tree branches, or a ban-
ner
• When driving through steam or smoke
• When driving near an object that reflects radio waves, such as a large
truck or guardrail
• When driving near a TV tower, broad - casting station, electric power plant, or
other location where strong radio
waves or electrical noise may be pres - ent
■Situations in which the system may
not operate properly
●In some situations such as the follow-
ing, an object may not be detected by
the radar sensor and front camera,
preventing the syst em from operating properly:
• When a detectab le object is
approaching your vehicle • When your vehicle or a detectable
object is wobbling
• If a detectable object makes an abrupt maneuver (such as sudden swerving,
acceleration or deceleration)
• When your vehicle approaches a detectable object rapidly
• When a detectabl e object is not
directly in front of your vehicle
• When a detectable object is near a
wall, fence, guardrail, manhole cover, vehicle, steel plate on the road, etc.
• When a detectable object is under a
structure • When part of a detectable object is
hidden by an object, such as large
baggage, an umbrella, or guardrail • When multiple detectable objects are
close together
• If the sun or othe r light is shining directly on a de tectable object
• When a detectable object is a shade
of white and looks extremely bright • When a detectable object appears to
be nearly the same color or brightness
as its surroundings • If a detectable object cuts or suddenly
emerges in front of your vehicle
• When the front of your vehicle is hit by water, snow, dust, etc.
• When a very brigh t light ahead, such
as the sun or the headlights of oncom - ing traffic, shines directly into the front
camera
• When approaching the side or front of a vehicle ahead
• If a vehicle ahea d is a motorcycle
• If a vehicle ahead is narrow, such as a
personal mobility vehicle • If a preceding vehicle has a small rear
end, such as an unloaded truck
• If a preceding vehicle has a low rear end, such as a low bed trailer

361
5
5-5. Using the driving support systems
Driving
• If a vehicle ahead has extremely high
ground clearance
• If a vehicle ahead is carrying a load
which protrudes pa st its rear bumper • If a vehicle ahead is irregularly
shaped, such as a tractor or side car
• If a vehicle ahead is a child sized bicy - cle, a bicycle that is carrying a large
load, a bicycle ridden by more than
one person, or a uniquely shaped bicycle (bicycle with a child seat, tan-
dem bicycle, etc.)
• If a pedestrian/or the riding height of a bicyclist ahead is shorter than approx -
imately 1 m (3.2 ft.) or taller than
approximately 2 m (6.5 ft.) • If a pedestrian/bi cyclist is wearing
oversized clothing (a rain coat, long
skirt, etc.), maki ng their silhouette obscure
• If a pedestrian is bending forward or
squatting or bicyclist is bending for - ward
• If a pedestrian/bicy clist is moving fast
• If a pedestrian is pushing a stroller, wheelchair, bicycle or other vehicle
• When driving in inclement weather
such as heavy rain , fog, snow or a
sandstorm • When driving through steam or smoke
• When the surrounding area is dim,
such as at dawn or dusk, or while at night or in a tunnel, making a detect -
able object appear to be nearly the
same color as its surroundings
• When driving in a place where the sur - rounding brightness changes sud -
denly, such as at the entrance or exit
of a tunnel • After the hybrid system has started
the vehicle has not been driven for a
certain amount of time • While making a left/right turn and for a
few seconds after making a left/right
turn • While driving on a curve and for a few
seconds after driving on a curve
• If your vehicle is skidding • If the front of the v ehicle is raised or
lowered
• If the wheels are misaligned
• If a wiper blade is blocking the front
camera • The vehicle is being driven at
extremely high speeds
• When driving on a hill • If the radar sensor or front camera is
misaligned
●In some situations such as the follow -
ing, sufficient braking force may not
be obtained, preventing the system from performing properly:
• If the braking functions cannot operate
to their full extent, such as when the brake parts are extremely cold,
extremely hot, or wet
• If the vehicle is not properly main - tained (brakes or ti res are excessively
worn, improper tire i nflation pressure,
etc.)
• When the vehicle is being driven on a gravel road or other slippery surface
■If VSC is disabled
●If VSC is disabled (→P.439), the pre- collision brake assist and pre-collision
braking functions are also disabled.

3625-5. Using the driving support systems
●The PCS warning light will turn on and
“VSC Turned OFF Pre-Collision Brake System Unavailable” will be displayed
on the multi-information display.
*: If equipped
LTA (Lane Tracing
Assist)*
When driving on highways and
freeways with white (yellow)
lane lines, this function alerts
the driver when the vehicle
might depart from its lane or
course* and provides assis -
tance by operating the steering
wheel to keep the vehicle in its
lane or course*. Furthermore,
the system provides steering
assistance when dynamic
radar cruise control with full-
speed range is operating to
keep the vehic le in its lane.
The LTA system recognizes
white (yellow) l ane lines or a
course* using the front cam -
era. Additionally, it detects pre -
ceding vehicles using the front
camera and radar.
*: Boundary between asphalt and the
side of the road, such as grass,
soil, or a curb

363
5
5-5. Using the driving support systems
Driving
WARNING
■Before using LTA system
●Do not rely sole ly upon the LTA
system. The LTA system does not automatically drive the vehicle or
reduce the amount of attention that
must be paid to the area in front of the vehicle. The driver must always
assume full responsibility for driving
safely by paying careful attention to
the surrounding conditions and operating the stee ring wheel to cor-
rect the path of t he vehicle. Also,
the driver must take adequate breaks when fatigued, such as from
driving for a long period of time.
●Failure to perform appropriate driv -
ing operations and pay careful
attention may lead to an accident, resulting in death or serious injury.
●When not u sing the LTA system, use the LTA switch to turn the sys -
tem off.
■Situations unsuitable for LTA
system
In the following situations, use the LTA switch to tu rn the system off.
Failure to do so may lead to an acci -
dent, resulting in death or serious injury.
●Vehicle is driven on a road surface which is slippery due to rainy
weather, fallen snow, freezing, etc.
●Vehicle is driven on a snow-cov -
ered road.
●White (yellow) lines are difficult to
see due to rain, snow, fog, dust,
etc.
●Vehicle is driven in a temporary
lane or restricted lane due to con - struction work.
●Vehicle is driven in a construction zone.
●A spare tire, tire chains, etc. are equipped.
●When the tires have been exces - sively worn, or when the tire infla -
tion pressure is low.
●When tires of a size other than
specified are installed.
●Vehicle is driven in traffic lanes
other than that highways and free -
ways.
●When your vehicle is towing a
trailer or during emergency towing
■Preventing LTA system malfunc -
tions and operations performed by mistake
●Do not modify the headlights or
place stickers, etc. on the surface of the lights.
●Do not modify the suspension etc. If the suspension etc. needs to be
replaced, contact any authorized
Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Do not install or place anything on the hood or grille. Also, do not
install a grille guar d (bull bars, kan-
garoo bar, etc.).
●If your windshield needs repairs,
contact any autho rized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
■Conditions in which functions
may not operate properly
In the following situ ations, the func- tions may not operate properly and
the vehicle may depart from its lane.
Drive safely by always paying careful
attention to your surroundings and operate the steering wheel to correct
the path of the vehicle without relying
solely on the functions.

3645-5. Using the driving support systems
WARNING
●When the follow-up cruising dis-
play is displayed ( →P.368) and the
preceding vehicle changes lanes. (Your vehicle may follow the pre -
ceding vehicle and also change
lanes.)
●When the follow-up cruising dis -
play is displayed ( →P.368) and the
preceding vehicle is swaying. (Your vehicle may sway accordingly and
depart from the lane.)
●When the follow-up cruising dis -
play is displayed ( →P.368) and the
preceding vehicle departs from its lane. (Your vehicle may follow the
preceding vehicle and depart from
the lane.)
●When the follow-up cruising dis -
play is displayed ( →P.368) and the preceding vehicle is being driven
extremely close to the left/right lane
line. (Your vehicle may follow the preceding vehicle and depart from
the lane.)
●Vehicle is being driven around a
sharp curve.
●Objects or patterns that could be mistaken for white (yellow) lines are
present on the s ide of the road
(guardrails, refle ctive poles, etc.).
●Vehicle is driven where the road
diverges, merges, etc.
●Repair marks of asphalt, white (yel - low) lines, etc. are present due to
road repair.
●There are shadows on the road that
run parallel with, or cover, the white
(yellow) lines.

365
5
5-5. Using the driving support systems
Driving
■Lane departure alert function
When the system determines that
the vehicle might depart from its
lane or course*, a warning is dis -
played on the multi-information dis -
play, and either a warning buzzer
will sound or the steering wheel will
vibrate to alert the driver.
When the warning buzzer sounds or
the steering wheel vibrates, check the
area around your vehicle and carefully
WARNING
●The vehicle is driven in an area
without white (yellow) lines, such as
in front of a tollg ate or checkpoint, or at an intersection, etc.
●The white (yellow) lines are cracked, “Raised pavement
marker” or stones are present.
●The white (yellow) lines cannot be seen or are difficu lt to see due to
sand, etc.
●The vehicle is driven on a road sur -
face that is wet due to rain, pud -
dles, etc.
●The traffic lines are yellow (which
may be more difficult to recognize than lines that are white).
●The white (yellow) lines cross over a curb, etc.
●The vehicle is driven on a bright surface, such as concrete.
●If the edge of the road is not clear or straight.
●The vehicle is driven on a surface that is bright due t o reflected light,
etc.
●The vehicle is driven in an area
where the brightness changes sud -
denly, such as at the entrances and exits of tunnels, etc.
●Light from the hea dlights of an oncoming vehicle, the sun, etc.
enters the camera.
●The vehicle is driven on a slope.
●The vehicle is driven on a road which tilts left or right, or a winding
road.
●The vehicle is driven on an
unpaved or rough road.
●The traffic lane is excessively nar -
row or wide.
●The vehicle is ext remely tilted due to carrying heavy luggage or having
improper tire pressure.
●The distance to the preceding vehi -
cle is extremely short.
●The vehicle is moving up and down
a large amount due to road condi-
tions during drivi ng (poor roads or road seams).
●When driving in a t unnel or at night with the headlights off or when a
headlight is dim due to its lens
being dirty or it being misaligned.
●The vehicle is s truck by a cross-
wind.
●The vehicle is affected by wind from
a vehicle driven in a nearby lane.
●The vehicle has just changed lanes
or crossed an intersection.
●Tires which differ by structure, man -
ufacturer, brand or tread pattern are used.
●Snow tires, etc. are equipped.
●The vehicle is b eing driven at
extremely high speeds.
Functions included in LTA
system

3665-5. Using the driving support systems
operate the steering wheel to move the
vehicle back to the center of the lane.
Vehicles with BSM : When the system
determines that the vehicle might
depart from its lane and that the possi-
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
lane departure alert will operate even if
the turn signals are operating.
*: Boundary between asphalt and the
side of the road, su ch as grass, soil,
or a curb
■Steering assist function
When the system de termines that
the vehicle might depart from its
lane or course*, the system pro -
vides 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-information dis -
play and the function is temporarily
canceled.
Vehicles with BSM : When the system
determines that the vehicle might
depart from its lane and that the possi -
bility of a collision with an overtaking
vehicle in the adjacent lane is high, the
steering assist function will operate
even if the turn si gnals are operating.
*: Boundary between asphalt and the
side of the road, such as grass, soil,
or a curb
■Vehicle sway warning function
When the vehicle is swaying within
a lane, the warni ng buzzer will
sound and a message will be dis -
played on the multi-information dis -
play to alert the driver.