sensor TOYOTA RAV4 PLUG-IN HYBRID 2022 Repair Manual

377
5 5-5. Using the driving support systems
Driving
Approximate distance to object: 60 cm (2.0 ft.) to 45 cm (1.5 ft.)
Approximate distance to object: 45 cm (1.5 ft.) to 30 cm (1.0 ft.)
Approximate distance to object: 30 cm (1.0 ft.) to 15 cm (0.5 ft.)
*: The distance segments will blink slowly.
Approximate distance to object: Less than 15 cm (0.5 ft.)
*: The distance segments will blink rapidly.
QBuzzer operation and dis-
tance to an object
A buzzer sounds when the sensors are operating.
The buzzer beeps faster as the
vehicle approaches an object.
Multi-information displayNavigation or multimedia system screen
Multi-information displayNavigation or multimedia system screen
Multi-information displayNavigation or multimedia system screen
Multi-information display*Navigation or multimedia system screen
Multi-information display*Navigation or multimedia system screen

3785-5. Using the driving support systems
When the vehicle comes within
approximately 30 cm (1.0 ft.) of
the object, the buzzer sounds
continuously
When 2 or more sensors simulta-
neously detect a static object,
the buzzer sounds for the near-
est object.
Even when the sensors are oper-
ating, the buzzer will be muted in
some situations. (automatic
buzzer mute function)
QMuting the buzzer sound (vehicles
with PKSB)
OAutomatic buzzer mute function
Even when the sensors are operating,
the buzzer will be muted in the following
situations:
• The distance between the vehicle and
the detected object does not become
shorter (except when the distance
between the vehicle and object is 30
cm [1.0 ft.] or less).
• Your vehicle is moving away from the
object.
• There are no detectable objects enter-
ing the path of your vehicle.
However, if another object is detected or
the situation changes while the buzzer is
muted, the buzzer begins sounding
again.
OTo mute the buzzer sound
The buzzer can be temporarily muted by
pressing of the meter control
switches while a suggestion that says
mute is available is shown on the multi-
information display.
OWhen the mute is canceled
Mute will be automatically canceled in
the following situations.
• When the shift position is changed• When the vehicle speed has reached
or exceeded a certain speed
• When the Toyota parking assist is
turned off once and turned on again
• When the power switch is turned off
once and turned to ON again
QCustomization
The buzzer volume can be adjusted on
the multi-information display. (except for
vehicles without front sensors)
(P.184)

379
5
5-5. Using the driving support systems
Driving
*: If equipped
QParking Support Brake func-
tion (static objects)
 P.383
QParking Support Brake func-
tion (rear-crossing vehicles)
 P.386
PKSB (Parking Support
Brake)*
The Parking Support Brake
system consists of the follow-
ing functions that operate
when driving at a low speed or
backing up, such as when
parking. When the system
determines that the possibility
of a collision with a detected
object is high, a warning oper-
ates to urge the driver to take
evasive action. If the system
determines that the possibility
of a collision with a detected
object is extremely high, the
brakes are automatically
applied to help avoid the colli-
sion or help reduce the impact
of the collision.
PKSB (Parking Support
Brake) system
WARNING
QCautions regarding the use of the system
Do not overly rely on the system, as doing so may lead to an accident.
Always drive while checking the
safety of the surroundings of the vehi- cle.
Depending on the vehicle and road
conditions, weather, etc., the system may not operate.
The detection capabilities of sensors
and radars are limited. Always drive while checking the safety of the sur-roundings of the vehicle.
OThe driver is solely responsible for safe driving. Always drive carefully,
taking care to observe your sur- roundings. The Parking Support Brake system is designed to pro-
vide support to lessen the severity of collisions. However, it may not operate in some situations.
OThe Parking Support Brake system is not designed to stop the vehicle
completely. Additionally, even if the system has stopped the vehicle, it is necessary to depress the brake
pedal immediately as brake control will be canceled after approximately 2 seconds.
OIt is extremely dangerous to check the system operations by intention-
ally driving the vehicle into the direction of a wall, etc. Never attempt such actions.
QWhen to disable the Parking Sup-port Brake
In the following situations, disable the Parking Support Brake as the system may operate even though there is no
possibility of a collision.
OWhen inspecting the vehicle using
a chassis roller, chassis dynamo or free roller.

3805-5. Using the driving support systems
The Parking Support Brake can be
enabled/disabled on the screen
of the multi-information display. All
of the Parking Support Brake func-
tions (static objects and rear-cross-
ing vehicles) are enabled/disabled
simultaneously. ( P.184)
When the Parking Support Brake is dis-
abled, the PKSB OFF indicator
( P.169) illuminates on the multi-infor-
mation display.
To re-enable the system, select on
the multi-information display, select
and turn it on.
If the system is disabled, it will remain
off even if the power switch is turned to
ON after the power switch has been
turned off.
WARNING
OWhen loading the vehicle onto a boat, truck or other transport ves-
sel.
OIf the suspension has been modi-
fied or tires of a size other than specified are installed.
OIf the front of the vehicle is raised or lowered due to the carried load.
OWhen equipment that may obstruct a sensor is installed, such as a tow-ing eyelet, bumper protector (an
additional trim strip, etc.), bicycle carrier, or snow plow.
OWhen using automatic car washing devices.
OIf the vehicle cannot be driven in a stable manner, such as when the vehicle has been in an accident or
is malfunctioning.
OWhen the vehicle is driven in a
sporty manner or off-road.
OWhen the tires are not properly
inflated.
OWhen the tires are very worn.
OWhen tire chains, a compact spare tire or an emergency tire puncture
repair kit are used.
NOTICE
QIf “Parking Support Brake Unavailable” is displayed on the
multi-information display and the PKSB OFF indicator illuminates
If this message is displayed immedi-
ately after the power switch is changed to ON, operate the vehicle carefully, paying attention to your sur-
roundings. It may be necessary to drive the vehicle for a certain amount of time before the system returns to
normal. (If the system does not return to normal after driving for a while, clean the sensors and their surround-
ing area on the bumpers.)
Enabling/Disabling the Park-
ing Support Brake

383
5 5-5. Using the driving support systems
Driving
ing the accelerator pedal.
QRe-enabling the Parking Support
Brake
To re-enable the Parking Support Brake
when it is disabled due to operation of
the Parking Support Brake, either
enable the system again (P.380), or
turn the power switch off and then back
to ON. Additionally, if the object
becomes no longer in the traveling
direction of the vehicle or if the traveling
direction of the vehicle changes (such
as changing from moving forward to
backing up, or from backing up to mov-
ing forward), the system will be re-
enabled automatically.
QIf “Parking Support Brake Unavail-
able” is displayed on the multi-
information display and the PKSB
OFF indicator illuminates
OIf “Clean Parking Assist Sensor” is
displayed simultaneously, a sensor
may be covered with ice, snow, dirt,
etc. In this case, remove the ice,
snow, dirt, etc., from the sensor to
return the system to normal. If this
message is shown even after remov-
ing dirt from the sensor, or shown
when the sensor was not dirty to begin
with, have the vehicle inspected at
any authorized Toyota retailer or
Toyota authorized repairer, or any reli-
able repairer.
OIf “Parking Assist Unavailable” is dis-
played simultaneously, water may be
continuously flowing over the sensor
surface, such as in a heavy rain.
When the system determines that it is
normal, the system will return to nor-
mal.
*: If equipped
This function will operate in situa-
tions such as the following if an
object is detected in the traveling
direction of the vehicle.
Parking Support Brake
function (static objects)
*
If the sensors detect a static
object, such as a wall, in the
traveling direction of the vehi-
cle and the system determines
that a collision may occur due
to the vehicle suddenly moving
forward due to an accidental
accelerator pedal operation,
the vehicle moving the unin-
tended direction due to the
wrong shift position being
selected, or while parking or
traveling at low speeds, the
system will operate to lessen
the impact with the detected
static object and reduce the
resulting damage.
Examples of function opera-
tion

3845-5. Using the driving support systems
QWhen traveling at a low speed
and the brake pedal is not
depressed, or is depressed
late
QWhen the accelerator pedal is
depressed excessively
QWhen the vehicle moves in the
unintended direction due to
the wrong shift position being
selected
 P.371
QThe Parking Support Brake func- tion (static object) will operate
when
The function will operate when the PKSB OFF indicator is not illuminated
( P.168, 169) and all of the following conditions are met:
OHybrid system output restriction con-
Types of sensors
WARNING
QTo ensure the system can oper-
ate properly
 P.372
QIf the Parking Support Brake function (static objects) operates unnecessarily, such as at a rail-
road crossing
 P.382
QNotes when washing the vehicle
 P.373

385
5 5-5. Using the driving support systems
Driving
trol
• The Parking Support Brake is
enabled.
• The vehicle speed is approximately 15
km/h (9 mph) or less.
• There is a static object in the traveling
direction of the vehicle and approxi-
mately 2 to 4 m (6 to 13 ft.) away.
• The Parking Support Brake deter-
mines that a stronger-than-normal
brake operation is necessary to avoid
a collision.
OBrake control
• Hybrid system output restriction con-
trol is operating
• The Parking Support Brake deter-
mines that an immediate brake opera-
tion is necessary to avoid a collision.
QThe Parking Support Brake func-
tion (static objects) will stop oper-
ating when
The function will stop operating if any of
the following conditions are met:
OHybrid system output restriction con-
trol
• The Parking Support Brake is dis-
abled.
• The system determines that the colli-
sion has become avoidable with nor-
mal brake operation.
• The static object is no longer approxi-
mately 2 to 4 m (6 to 13 ft.) away from
the vehicle or in the traveling direction
of the vehicle.
OBrake control
• The Parking Support Brake is dis-
abled.
• Approximately 2 seconds have
elapsed since the vehicle was
stopped by brake control.
• The brake pedal is depressed after
the vehicle is stopped by brake con-
trol.
• The static object is no longer approxi-
mately 2 to 4 m (6 to 13 ft.) away from
the vehicle or in the traveling direction
of the vehicle.
QDetection range of the Parking Sup-
port Brake function (static objects)
The detection range of the Parking Sup-port Brake function (static objects) dif-
fers from the detection range of the
Toyota parking assist-sensor. (P.376)
Therefore, even if the Toyota parking
assist-sensor detects an object and pro-
vides a warning, the Parking Support
Brake function (static objects) may not
start operating.
QSituations in which the Parking
Support Brake function (static
objects) may not operate
When the shift lever is in N
QSituations in which the system may
not operate properly
P.374
QSituations in which the system may
operate even if there is no possibil-
ity of a collision
P.375

3865-5. Using the driving support systems
*: If equipped
This function will operate in situa-
tions such as the following if a vehi-
cle is detected in the traveling
direction of the vehicle.
QWhen reversing, a vehicle is
approaching and the brake
pedal is not depressed, or is
depressed late
 P.364
QThe Parking Support Brake func- tion (rear-crossing vehicles) will
operate when
The function will operate when the PKSB OFF indicator is not illuminated
( P.168, 169) and all of the following conditions are met:
OHybrid system output restriction con-trol• The Parking Support Brake is
enabled. • The vehicle speed is approximately 15 km/h (9 mph) or less.
• Vehicles are approaching from the right or left at the rear of the vehicle at a traveling speed of approximately 8
km/h (5 mph) or more. • The shift lever is in R.• The Parking Support Brake deter-
mines that a stronger than normal brake operation is necessary to avoid a collision with an approaching vehi-
cle.
OBrake control
• Hybrid system output restriction con- trol is operating• The Parking Support Brake deter-
mines that an emergency brake oper- ation is necessary to avoid a collision with an approaching vehicle.
QThe Parking Support Brake func-
tion (rear-crossing vehicles) will stop operating when
The function will stop operating if any of
the following conditions are met:
OHybrid system output restriction con-
trol • The Parking Support Brake is dis-
Parking Support Brake
function (rear-crossing
vehicles)*
If a rear radar sensor detects a
vehicle approaching from the
right or left at the rear of the
vehicle and the system deter-
mines that the possibility of a
collision is high, this function
will perform brake control to
reduce the likelihood of an
impact with the approaching
vehicle.
Examples of function opera-
tion
Types of sensors
WARNING
QTo ensure the system can oper-
ate properly
 P.364

3925-5. Using the driving support systems
QVSC+ (Vehicle Stability Con-
trol+)
Provides cooperative control of the
ABS, TRC, VSC and EPS.
Helps to maintain directional stabil-
ity when swerving on slippery road
surfaces by controlling steering per-
formance.
QTrailer Sway Control
Helps the driver to control trailer
sway by selectively applying brake
pressure for individual wheels and
reducing driving torque when trailer
sway is detected.
QTRC (Traction Control)
Helps to maintain drive power and
prevent the drive wheels from spin-
ning when starting the vehicle or
accelerating on slippery roads
QActive Cornering Assist (ACA)
Helps to prevent the vehicle from
drifting to the outer side by perform-
ing inner wheel brake control when
attempting to accelerate while turn-
ing
QHill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
QEPS (Electric Power Steering)
Employs an electric motor to
reduce the amount of effort needed
to turn the steering wheel.
QE-Four (Electronic On-Demand
AWD system)
Automatically controls the drive
system such as to front-wheel drive
or AWD (all wheel drive) according
to various running conditions
including normal driving, during cor-
nering, on a uphill, when starting
off, during acceleration, on a slip-
pery roads due to snow or rain,
thus contributing to stable
operability and driving stability.
QEmergency brake signal
When the brakes are applied sud-
denly, the emergency flashers
automatically flash to alert the vehi-
cle behind.
QThe Secondary Collision
Brake (if equipped)
When the SRS airbag sensor
detects a collision and the system
operates, the brakes and brake
lights are automatically controlled
to reduce the vehicle speed and
help reduce the possibility of further
damage due to a secondary colli-
sion.
QWhen the TRC/VSC/ABS/Trail
Mode/Trailer Sway Control systems
are operating
The slip indicator light will flash while the
TRC/VSC/ABS/Trail Mode/Trailer Sway
Control systems are operating.

395
5
5-5. Using the driving support systems
Driving
ing operation.
QAutomatic system cancelation of
emergency brake signal
The emergency brake signal will be can- celed in any of the following situations:
OThe emergency flashers are turned on.
OThe system judges from the vehicle deceleration that is not a sudden brak-
ing operation.
QSecondary Collision Brake operat- ing conditions (if equipped)
The system operates when the SRS air-
bag sensor detects a collision while the vehicle is in motion. However, the sys-tem does not operate when the compo-
nents are damaged.
QSecondary Collision Brake auto- matic cancellation (if equipped)
The system is automatically canceled in
any of the following situations.
OThe vehicle speed drops to approxi-
mately 10 km/h (6 mph).
OA certain amount of time elapses
during operation
OThe accelerator pedal is depressed a
large amount
QIf a message about AWD is shown on the multi-information display (AWD models)
Perform the following actions.
O“AWD System Overheated Switching
to 2WD Mode”
AWD system is overheated. Stop the
vehicle in a safe place with the hybrid
system operating.*
If the message disappears after a while,
there is no problem. If the message
remains, have the vehicle inspected by
any authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer immediately.
O“AWD System Overheated 2WD
Mode Engaged”
AWD system has been temporarily
released and switched to front-wheel
drive due to overheating. Stop the vehi-
cle in a safe place with the hybrid sys-
tem operating.*
If the message disappears after a while,
AWD system will automatically recover.
If the message remains, have the vehi-
cle inspected by any authorized Toyota
retailer or Toyota authorized repairer, or
any reliable repairer immediately.
O“AWD System Malfunction 2WD Mode Engaged Visit Your Dealer”
A malfunction occurs in the AWD sys-
tem. Have the vehicle inspected by any
authorized Toyota retailer or Toyota
authorized repairer, or any reliable
repairer immediately.
*: When stopping the vehicle, do not
stop the hybrid system until the dis-
play message has turned off.
WARNING
QThe ABS does not operate effec-
tively when
OThe limits of tire gripping perfor- mance have been exceeded (such
as excessively worn tires on a snow covered road).
OThe vehicle hydroplanes while driv-ing at high speed on wet or slick roads.
QStopping distance when the ABS is operating may exceed that of
normal conditions
The ABS is not designed to shorten the vehicle’s stopping distance.
Always maintain a safe distance from the vehicle in front of you, especially in the following situations:
OWhen driving on dirt, gravel or snow-covered roads
OWhen driving with tire chains