stop start TOYOTA RAV4 2021 (in English) Service Manual

3534-5. Using the driving support systems
4
Driving
• The brake pedal is not sufficiently depressed.
 If the brake pedal is depressed
further, the system will operate.
“Non-Dedicated Battery”
• A battery not designed for use with a Stop & Start system may
have been installed.
 Have the vehicl e inspected by
your Toyota dealer.
“Battery Charging”
• The battery charge may be low.
 Stopping of the engine is tempo-
rarily prohibited to prioritize charging
of the battery. After the engine runs
for a certain amount of time, the
system will be enabled.
• A refresh charge may be occur- ring (Examples: For a while after
the battery terminals have been
disconnected and reconnected.
For a while after the battery has
been replaced. etc.)
 After a refresh charge for up to
an hour completes, the system can
be operated.
• If displayed continuously for a long time (more than an hour)
 The battery may be deteriorated.
Contact your Toyota dealer for
details.
“Stop & Start System
Unavailable”
• The Stop & Start system is tempo- rarily disabled.
 Allow the engine to run for some
time.
• The engine may have been started with the hood open.
 Close the hood , turn the engine switch to OFF, wait for 30 seconds
or more, and then start the engine.
“In Preparation”
• The vehicle is being driven in a high altitude area.
• The brake booster vacuum is low.
 When the brake booster vacuum
reaches a predeter mined level, the
system will be enabled.
“For Climate Control”
• The air conditioning system is being used when the ambient
temperature is high or low.
 If the difference between the set
temperature and cabin temperature
becomes small, the system will be
enabled.
• The windshield defogger is on.
●When the engine automatically
restarts while stopped by the Stop
& Start system
“In Preparation”
• The brake pedal has been depressed further or pumped.
 The system will be enabled after
the engine runs and the brake
booster vacuum reaches a predeter-
mined level.
“For Climate Control”
• The air conditioning system has been turned on o r is being used.
• The windshield defogger has
been turned on.
“Battery Charging”
• The battery charge may be low.
 The system will be enabled after
the engine runs to sufficiently

3544-5. Using the driving support systems
charge the battery.
■When the buzzer sounds
If the driver’s door is opened when
the engine is stopped by the Stop &
Start system and the shift lever is in
D, a buzzer will s ound and the Stop
& Start system ind icator will flash.
To stop the buzzer, close the
driver’s door.
■The Stop & Start system protec-
tion function
●When the volume of the audio
system is excessively high, sound
output from the audio system may
suddenly be cut off in order to
reduce battery consumption. To
prevent the audio system from
being cut off, keep the volume of
audio system at a moderate level.
If the audio system has been cut
off, turn the engine switch to OFF,
wait for 3 secon ds or more and
then turn it to ACC or ON to re-
enable the audio system.
●The audio system may not be acti-
vated if the battery terminals are
disconnected an d then recon-
nected. If this o ccurs, turn the
engine switch t o OFF and then
repeat the following operation
twice to activate the audio system
normally.
• Turn the engine switch to ON and then to off.
■Replacing the battery
 P.668
■If the Stop & Start cancel indica-
tor flashes continuously
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
■If “Stop & Start System Mal-
function Visit Your Dealer” is
displayed on the multi-informa-
tion display
The system may be malfunctioning.
Have the vehicle inspected by your
Toyota dealer.
WARNING
■When the Stop & Start system
is operating
Make sure to disable the Stop &
Start system while the vehicle is
in a poorly ventilated area.
If not disabled, the engine may be
automatically restarted unexpect-
edly, causing exhaust gases to
collect and enter the vehicle, pos-
sibly resulting in death or a seri-
ous health hazard.
●Do not leave the vehicle while
the engine is stopped by the
Stop & Start system (while the
Stop & Start indicator is on). An
accident may occur due to the
automatic engine start function.
●Depress the brake pedal and
apply the parking brake when
necessary while the engine is
stopped by the Stop & Start sys-
tem (while the Stop & Start indi-
cator is on).
NOTICE
■To ensure the system oper-
ates correctly
If any of the follo wing situations
occur, the Stop & Start system
may not operate c orrectly. Have
your vehicle inspected by your
Toyota dealer.
●While the driver’s seat belt is
fastened, the driver’s and front
passenger’s seat belt reminder
light flashes.
●Even though the driver’s seat
belt is not fastened, the driver’s
and front passenger’s seat belt
reminder light does not illumi-
nate.

3624-5. Using the driving support systems
*: If equipped
Press the “DAC” switch.
The downhill assist control system
indicator will come on and the sys-
tem will operate.
When the system is in operation,
the slip indicator light will flash, and
the stop lights/high mounted stop
lights will be lit. A sound may also
occur during the operation. This
does not indicate a malfunction.
Press the “DAC” switch while
the system is in operation.
The downhill assist control system
indicator will flash as the system
gradually ceases operation, and will
turn off when the system is fully off.
Press the “DAC” switch while the
downhill assist control system indi-
cator is flash ing to start the system
again.
■Operating tips
The system will o perate when the
shift lever is in D or 1 range of S
mode or R.
■If the downhill a ssist control
system indicator flashes
●In the following situ ations, the indi-
cator flashes and the system will
not operate:
• The shift lever is in a position
other than D or 1 range of S mode
or R.
• The accelerator or brake pedal is
depressed.
• The vehicle speed exceeds approximately 15 mph (25 km/h).
• The brake system overheats.
●In the following situation, the indi-
cator flashes to alert the driver,
but the system will operate:
• The “DAC” switch is turned off
while the system is operating.
The system will gradually ceases
Downhill assist con-
trol system*
The downhill assist control
system helps to prevent
excessive speed on steep
downhill slopes.
The system will operate
when the vehicle is traveling
under 15 mph (25 km/h) with
the accelerator and brake
pedals released.
WARNING
■When using downhill assist
control system
Do not rely overmuch on the
downhill assist control system.
This function does not extend the
vehicle’s performance limitations.
Always thoroughly check the road
conditions, and drive safely.
System operation
Turning off the system

3634-5. Using the driving support systems
4
Driving
operation. The indicator will flash
during operation, and then go off
when the system is fully off.
■When the downhill assist con-
trol system is operated continu-
ously
This may cause the brake actuator
to overheat. In this case, the down-
hill assist control system will stop
operating, a buzze r will sound and
the downhill assist control system
indicator will start flashing. Refrain
from using the s ystem until the
downhill assist control system indi-
cator stays on. (T he vehicle can be
driven normally during this time.)
■Sounds and vibrations caused
by the downhill assist control
system
●A sound may be heard from the
engine compartment when the
engine is started or just after the
vehicle begins to move. This
sound does not indicate that a
malfunction has occurred in down-
hill assist control system.
●Either of the following conditions
may occur when the downhill
assist control system is operating.
None of these are indicators that a
malfunction has occurred.
• Vibrations may be felt through the vehicle body and steering.
• A motor sound may be heard after
the vehicle comes to a stop.
■System malfunction
In the following ca ses, have your
vehicle checked by your Toyota
dealer.
●The downhill assist control system
indicator does not come on when
the engine switch is turned to ON.
●The downhill assist control system
indicator does not come on when
the “DAC” switch is pressed.
●The slip indicator light comes on.
WARNING
■The system may not operate
on the following surfaces,
which may lead to an acci-
dent causing death or serious
injury
●Slippery surfaces such as wet
or muddy roads
●Icy surface
●Unpaved roads

3644-5. Using the driving support systems
■ABS (Anti-lock Brake Sys-
tem)
Helps to prevent wheel lock
when the brakes are applied
suddenly, or if the brakes are
applied while driving on a slip-
pery road surface
■Brake assist
Generates an increased level of
braking force after the brake
pedal is depressed when the
system detects a panic stop sit-
uation
■VSC (Vehicle Stability Con-
trol)
Helps the driver to control skid-
ding when swerving suddenly or
turning on slippery road sur-
faces.
■Enhanced VSC (Enhanced
Vehicle Stability Control)
Provides cooperative control of
the ABS, TRAC, VSC and EPS.
Helps to maintain directional
stability when swerving on slip-
pery road surfaces by con-
trolling steering performance.
■Trailer 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.
■TRAC (Traction Control)
Helps to maintain drive power
and prevent the drive wheels
from spinning when starting the
vehicle or accelerating on slip-
pery roads
■Active Cornering Assist
(ACA)
Helps to prevent the vehicle
from drifting to the outer side by
performing inner wheel brake
control when attempting to
accelerate while turning
■Hill-start assist control
Helps to reduce the backward
movement of the vehicle when
starting on an uphill
■EPS (Electric Power Steer-
ing)
Employs an electric motor to
reduce the amount of effort
Driving assist systems
To keep driving safety and
performance, the following
systems operate automati-
cally in response to various
driving situations. Be
aware, however, that these
systems are supplementary
and should not be relied
upon too heavily when oper-
ating the vehicle.
Summary of the driving
assist systems

3664-5. Using the driving support systems
be shown on the multi-information
display.
Press again to turn the system
back on.
■Turning off the
TRAC/VSC/Trailer Sway Con-
trol systems
To turn the TRAC/VSC/Trailer Sway
Control systems off, press and hold
for more than 3 seconds while
the vehicle is stopped.
The VSC OFF indicator light will
come on and the “Traction Control
Turned OFF” will be shown on the
multi-information display.
*
Press again to tu rn the systems
back on.
*: PCS will also be disabled (only
Pre-Collision warning is avail-
able). The PCS warning light will
come on and a message will be
displayed on the multi-information
display. ( P.239)
■When the message is dis-
played on the multi-information
display showing that TRAC has
been disabled even if has
not been pressed
TRAC is temporary deactivated. If
the information continues to show,
contact your Toyota dealer.
■Operating conditions of hill-
start assist control
When the following four conditions
are met, the hill-start assist control
will operate:
●The shift lever is in a position
other than P or N (when starting
off forward/backward on an
upward incline).
●The vehicle is stopped.
●The accelerator pedal is not
depressed.
●The parking brake is not engaged.
■Automatic system cancelation
of hill-start assist control
The hill-start assist control will turn
off in any of the fo llowing situations:
●The shift lever is shifted to P or N.
●The accelerator pedal is
depressed.
●The parking brake is engaged.
●No more than 2 seconds have
elapsed after the brake pedal is
released.
■Sounds and vibrations caused
by the ABS, brake assist, VSC,
Trailer Sway Control, TRAC and
hill-start assist control systems
●A sound may be heard from the
engine compartment when the
brake pedal is depressed repeat-
edly, when the engine is started or
just after the vehicle begins to
move. This sound does not indi-
cate that a malfunction has
occurred in any of these systems.
●Any of the following conditions
may occur when the above sys-
tems 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.
• The brake pedal may pulsate
slightly after th e ABS is activated.
• The brake pedal may move down
slightly after th e ABS is activated.
■Active Cornering Assist opera-
tion sounds and vibrations
When the Active Cornering Assist is
operated, operation sounds and
vibrations may be generated from
the brake system, but this is not a
malfunction.
■AWD system operation sounds
and vibrations when switching
between AWD and front wheel
drive
When the vehicle switches from
AWD to front wheel drive and vice

3694-5. Using the driving support systems
4
Driving
WARNING
■Stopping distance when the
ABS is operating may exceed
that of normal conditions
The ABS is not designed to
shorten the vehicle’s stopping dis-
tance. Always maintain a safe dis-
tance from the vehicle in front of
you, especially in the following sit-
uations:
●When driving on d irt, gravel or
snow-covered roads
●When driving with tire chains
●When driving over bumps in the
road
●When driving over roads with
potholes or uneven surfaces
■TRAC/VSC may not operate
effectively when
Directional control and power may
not be achievable while driving on
slippery road surfaces, even if the
TRAC/VSC system is operating.
Drive the vehicle carefully in con-
ditions where st ability and power
may be lost.
■Active Cornering Assist does
not operate effectively when
●Do not overly rely on Active
Cornering Assist. Active Corner-
ing Assist may not operate
effectively when accelerating
down slopes or driving on slip-
pery road surfaces.
●When Active Cornering Assist
frequently operates, Active Cor-
nering Assist may temporarily
stop operating to ensure proper
operation of the brakes, TRAC
and VSC.
■Hill-start assist control does
not operate effectively when
●Do not overly rely on hill-start
assist control. Hill-start assist
control may not o perate effec-
tively on steep inclines and
roads covered with ice.
●Unlike the parking brake, hill-
start assist control is not
intended to hold the vehicle sta-
tionary for an extended period
of time. Do not attempt to use
hill-start assist control to hold
the vehicle on an incline, as
doing so may lead to an acci-
dent.
■When the TRAC/VSC/Trailer
Sway Control is activated
The slip indicator light flashes.
Always drive carefully. Reckless
driving may cause an accident.
Exercise particula r care when the
indicator light flashes.
■When the TRAC/VSC/Trailer
Sway Control systems are
turned off
Be especially careful and drive at
a speed appropriate to the road
conditions. As these are the sys-
tems to help ensure vehicle stabil-
ity and driving force, do not turn
the TRAC/VSC/Tra iler Sway Con-
trol systems 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.
■Dynamic Torque Vectoring
AWD system (if equipped)
The cornering performance of the
newly developed AWD system
has been improved. However, do
not overly rely on the system and
drive with caution.

3855-2. Basic information before operation
5
Audio
5-2.Basic information before operation
After a few seconds, the caution
screen will be displayed.
After about 5 seconds or select-
ing “Continue”, the caution
screen automatically switches to
the next screen.
When system response is
extremely slow, the system can
be restarted.
1Press and hold the “POWER
VOLUME” knob for 3 sec-
onds or more.
Initial screen
When the engine switch is
turned to ACC or ON, the
initial screen will be dis-
played and the system will
begin operating.
Caution screen
WARNING
●When the vehicle is stopped
with the engine running, always
apply the parking brake for
safety.
Restarting the system

4165-4. Apple CarPlay/Android Auto
The Apple Car-
Play/Android Auto screen
has flickers and/or audio
from Apple Car-
Play/Android Auto has
noise.
Check if the USB cable being used to connect
the device to the system is damaged.
To check if the USB cable is damaged inter-
nally, connect the device to another system,
such as a PC, and check i f the device is recog-
nized by the connect ed system. (The device
should begin charging when connected.)
After checking all of the above, try to establish
an Apple CarPlay/Android Auto connection.
(  P.411)
The map display of the
Apple CarPlay Maps app
cannot be enlarged or
contracted with pinch
multi-touch gestures.
As the Apple CarPlay Map s app is not compati-
ble with pinch multi-touch gestures, this is not a
malfunction.
During Apple CarPlay
music application (Apple
Music, Spotify, etc.) play-
back, if the iPhone is
operated to start and play
audio from an application
that is not compatible with
Apple CarPlay
* and the
onboard device volume is
changed, the audio of the
incompatible application
stops and the system
resumes playback of the
original music application.
This operation is perfo rmed according to the
specification of the onboard device, this is not a
malfunction.
After interrupt audio (such
as navigation route guid-
ance) is played from an
application that is not
compatible with Apple
CarPlay while the onboard
device is playing audio
(FM/AM, etc.), the system
does not resume playback
of the original audio
(FM/AM, etc.).
This operation is perfo rmed according to the
specification of the onboard device, this is not a
malfunction. Manually change the audio source
by yourself. Or, do not us e applications that are
not compatible with Apple CarPlay.
* Due to
some navigation applications are compatible
from iOS 12, upd ate to the latest iOS and appli-
cation versions.
SymptomSolution

5005-16. What to do if... (Bluetooth®)
■In other situations
The Bluetooth
® connection sta-
tus is displayed at the top of the
screen each time the engine
switch is in ACC or ON.
Even though all conceivable
measures have been taken, the
symptom status does not
change.
●For details, refer to the owner’s
manual that came with the cellular
phone.
Likely causeSolution
Connection con-
firmation display
on this system is
set to on.
To turn off the
display, set con-
nection confir-
mation display
on this system to
off. ( P.404)
Likely causeSolution
The cellular
phone is not
close enough to
this system.Bring the cellu-
lar phone closer
to this system.
Radio interfer-
ence has
occurred.
Turn off Wi-Fi®
devices or other
devices that may
emit radio
waves.
The cellular
phone is the
most likely cause
of the symptom.
Turn the cellular
phone off,
remove and rein-
stall the battery
pack, and then
restart the cellu-
lar phone.
Enable the cellu-
lar phone’s
Bluetooth
® con-
nection.
Disable the
Wi-Fi
® connec-
tion of the cellu-
lar phone.
Stop the cellular
phone’s security
software and
close all applica-
tions.
Before using an
application
installed on the
cellular phone,
carefully check
its source and
how its operation
might affect this
system.
Likely causeSolution