2022 TOYOTA RAV4 PLUG-IN HYBRID ABS

391
5
5-5. Using the driving support systems
Driving
QECB (Electronically Con-
trolled Brake System)
The electronically controlled sys-
tem generates braking force corre-
sponding to the brake operation
QABS (Anti-lock Brake System)
Helps to prevent wheel lock when
the brakes are applied suddenly, or
if the brakes are applied while driv-
ing on a slippery road surface
QBrake assist
Generates an increased level of
braking force after the brake pedal
is depressed when the system
detects a panic stop situation
QVSC (Vehicle Stability Control)
Helps the driver to control skidding
when swerving suddenly or turning
on slippery road surfaces.
NOTICE
QTo prevent the GPF system from not operating properly
ODo not use fuel other than the spec-ified type
ODo not modify the exhaust pipes
Driving assist systems
To keep driving safety and per-
formance, the following sys-
tems operate automatically in
response to various driving sit-
uations. Be aware, however,
that these systems are supple-
mentary and should not be
relied upon too heavily when
operating the vehicle.
Summary of the driving
assist systems

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.

3945-5. Using the driving support systems
QSounds and vibrations caused by
the ABS, brake assist, VSC, Trailer
Sway Control, TRC and hill-start
assist control systems
OA sound may be heard from the
engine compartment when the brake
pedal is depressed repeatedly, when
the hybrid system is started or just
after the vehicle begins to move. This
sound does not indicate that a mal-
function has occurred in any of these
systems.
OAny of the following conditions may
occur when the above systems are
operating. None of these indicates
that a malfunction has occurred.
• Vibrations may be felt through the
vehicle body and steering.
• A motor sound may be heard also
after the vehicle comes to a stop.
QECB operating sound
ECB operating sound may be heard in
the following cases, but it does not indi-
cate that a malfunction has occurred.
OOperating sound heard from the
engine compartment when the brake
pedal is operated.
OMotor sound of the brake system
heard from the front part of the vehicle
when the driver’s door is opened.
OOperating sound heard from the
engine compartment when one or two
minutes passed after the stop of the
hybrid system.
QActive Cornering Assist operation
sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and vibra-
tions may be generated from the brake
system, but this is not a malfunction.
QEPS operation sound
When the steering wheel is operated, a
motor sound (whirring sound) may be
heard. This does not indicate a malfunc-
tion.
QAutomatic reactivation of TRC,
Trailer Sway Control and VSC sys-
tems
After turning the TRC, Trailer Sway
Control and VSC systems off, the sys-
tems will be automatically re-enabled in
the following situations:
OWhen the power switch is turned off
OIf only the TRC system is turned off,
the TRC will turn on when vehicle
speed increases
If both the TRC and VSC systems are
turned off, automatic re-enabling will
not occur when vehicle speed
increases.
QOperating conditions of Active Cor-
nering Assist
The system operates when the following
occurs.
OTRC/VSC can operate
OThe driver is attempting to accelerate
while turning
OThe system detects that the vehicle is
drifting to the outer side
OThe brake pedal is released
QReduced effectiveness of the EPS
system
The effectiveness of the EPS system is
reduced to prevent the system from
overheating when there is frequent
steering input over an extended period
of time. The steering wheel may feel
heavy as a result. Should this occur,
refrain from excessive steering input or
stop the vehicle and turn the hybrid sys-
tem off. The EPS system should return
to normal within 10 minutes.
QOperating conditions of emergency
brake signal
When the following conditions are met,
the emergency brake signal will operate:
OThe emergency flashers are off.
OActual vehicle speed is over 55 km/h
(35 mph).
OThe system judges from the vehicle
deceleration that it is a sudden brak-

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

3965-5. Using the driving support systems
WARNING
OWhen driving over bumps in the road
OWhen driving over roads with pot-holes or uneven surfaces
QTRC/VSC may not operate effec-tively when
Directional control and power may not be achievable while driving on slip-pery road surfaces, even if the
TRC/VSC system is operating. Drive the vehicle carefully in condi-tions where stability and power may
be lost.
QActive Cornering Assist does not
operate effectively when
ODo not overly rely on Active Corner- ing Assist. Active Cornering Assist
may not operate effectively when accelerating down slopes or driving on slippery road surfaces.
OWhen Active Cornering Assist fre-quently operates, Active Cornering
Assist may temporarily stop operat- ing to ensure proper operation of the brakes, TRC and VSC.
QHill-start assist control does not operate effectively when
ODo not overly rely on hill-start assist control. Hill-start assist control may not operate effectively on steep
inclines and roads covered with ice.
OUnlike the parking brake, hill-start
assist control is not intended to hold the vehicle stationary for an extended period of time. Do not
attempt to use hill-start assist con- trol to hold the vehicle on an incline, as doing so may lead to an acci-
dent.
QWhen the TRC/ABS/VSC/Trailer Sway Control is activated
The slip indicator light flashes. Always
drive carefully. Reckless driving may cause an accident. Exercise particular care when the indicator light flashes.
QWhen the TRC/VSC/Trailer Sway Control systems are turned off
Be especially careful and drive at a speed appropriate to the road condi-tions. As these are the systems to
help ensure vehicle stability and driv- ing force, do not turn the TRC/VSC/Trailer Sway Control sys-
tems off unless necessary.
Trailer Sway Control is part of the VSC system and will not operate if
VSC is turned off or experiences a malfunction.
QReplacing tires
Make sure that all tires are of the specified size, brand, tread pattern
and total load capacity. In addition, make sure that the tires are inflated to the recommended tire inflation pres-
sure level. The ABS, TRC, VSC and Trailer Sway Control systems will not func-
tion correctly if different tires are installed on the vehicle.Contact any authorized Toyota
retailer or Toyota authorized repairer, or any reliable repairer for further information when replacing tires or
wheels.
QHandling of tires and the suspen-
sion
Using tires with any kind of problem or modifying the suspension will affect
the driving assist systems, and may cause a system to malfunction.

4947-3. Do-it-yourself maintenance
turning the bulb base.
3Remove the light bulb.
4Install a new light bulb.
5Install the bulb base to the light
unit by inserting it and turning
the bulb base clockwise.
Secure the cord with the clip back again after installing the bulb base.
6Reinstall the cover.
QOuter foot lights (if equipped)
1Press the upper part of the out-
side rear view mirror to tilt the
mirror face upward, and discon-
nect the four tabs behind the
mirror.
Pry the mirror out toward you, and dis-
connect two tabs at a time.
Work carefully, ensuring that you do not

495
7 7-3. Do-it-yourself maintenance
Maintenance and care
drop the mirror.
2Disconnect the connectors
behind the mirror, and remove
the mirror.
Make sure to check the connectors, to
avoid connecting upside down when
reinstalling.
Work carefully, ensuring that you do not
drop the mirror.
3Disconnect the tabs behind the
mirror cover, and remove the
mirror cover.
4Fold the mirror before removing
the light unit.
5Remove the light unit.
Remove the two screws, and disen-
gage the two tabs with a flat-head
screwdriver.
Work carefully, ensuring that you do not

4967-3. Do-it-yourself maintenance
damage the tabs.
6Turn the bulb base counter-
clockwise.
Remove the cord from the clip before
turning the bulb base.
7Remove the light bulb.
8Install a new light bulb then
install the bulb base to the light
unit by inserting it and turning
the bulb base clockwise.
Secure the cord with the clip back again
after installing the bulb base.
9Install the light unit.
Make sure that the two tabs of the light
unit are engaged securely, and install