2021 TOYOTA RAV4 PRIME sensor

4457-1. Maintenance and care
7
Maintenance and care
■Front side windows water-
repellent coating (except quar-
ter window)
●The following precautions can
extend the effectiveness of the
water-repellent coating.
• Remove any dirt, etc., from the front side windows regularly.
• Do not allow dirt and dust to accu- mulate on the windows for a long
period. Clean the windows with a
soft, damp cloth as soon as possi-
ble.
• Do not use wax or glass cleaners
that contain abrasives when
cleaning the windows.
• Do not use any metallic objects to
remove condensation build up.
■Bumpers
Do not scrub with abrasive cleaners.
■Plated portions
If dirt cannot be removed, clean the
parts as follows:
●Use a soft cloth dampened with
an approximately 5% solution of
neutral detergent and water to
clean the dirt off.
●Wipe the surface with a dry, soft
cloth to remove any remaining
moisture.
●To remove oily deposits, use alco-
hol wet wipes or a similar product.
WARNING
■When washing the vehicle
Do not apply water to the inside of
the engine compartment. Doing
so may cause the electrical com-
ponents, etc. to catch fire.
■When cleaning the windshield
(vehicles with rain-sensing
windshield wipers)
Set the wiper switch to off.
If the wiper switch is in “AUTO”,
the wipers may operate unexpect-
edly in the following situations,
and may result in hands being
caught or other serious injuries
and cause damage to the wiper
blades.
Off
AUTO
●When the upper part of the
windshield where the raindrop
sensor is located is touched by
hand
●When a wet rag or similar is
held close to the raindrop sen-
sor
●If something bumps against the
windshield
●If you directly touch the raindrop
sensor body or if something
bumps into the ra indrop sensor
■Precautions regarding the
exhaust pipes
Exhaust gasses cause the
exhaust pipes to become quite
hot.
When washing the vehicle, be
careful not to touch the pipes until
they have cooled sufficiently, as
touching hot exhaust pipes can
cause burns.
A
B

5148-2. Steps to take in an emergency
■PCS warning light (warning buzzer)
■LTA indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Intuitive parking assist OFF indicator* (warning buzzer)
Warning lightDetails/Actions
(Flashes or illuminates)
When a buzzer sounds simultaneously:
Indicates a malfunction has occurred in the PCS
(Pre-Collision System).
Have the vehicle inspected by your Toyota
dealer immediately.
When a buzzer does not sound:
The PCS (Pre-Collision System) has become
temporarily unavailable, corrective action may
be necessary.
 Follow the instructions displayed on the
multi-information display. ( P.313, 526)
If the PCS (Pre-Collision System) or VSC (Vehi-
cle Stability Control) system is disabled, the
PCS warning light will illuminate.
 P.322
Warning lightDetails/Actions
(Orange)
Indicates a malfunction in the LTA (Lane Trac-
ing Assist)
 Follow the instructions displayed on the
multi-information display. ( P.332)
Warning lightDetails/Actions
(If equipped)
When a buzzer sounds:
Indicates a malfunction in the Intuitive parking
assist function
 Have the vehicle inspected by your Toyota
dealer immediately.
When a buzzer does not sound:
Indicates that the system is temporarily unavail-
able, possibly due to a sensor being dirty or cov-
ered with ice, etc.
 Follow the instructions displayed on the
multi-information display. ( P.359, 523)

5158-2. Steps to take in an emergency
8
When trouble arises
*: This light illuminat es on the multi-information display.
■PKSB OFF indicator* (warning buzzer)
*: This light illuminates on the multi-information display.
■BSM OFF indicator* (warning buzzer)
*: This light illuminates on the multi-information display.
Warning lightDetails/Actions
(If equipped)
If “Parking Support Brake Malfunction Visit Your
Dealer” is displayed on the multi-information
display:
Indicates a malfunctio n in the PKSB (Parking
Support Brake) system
 Have the vehicle inspected by your Toyota
dealer immediately.
If “Parking Assist Unavailable” is displayed on
the multi-information display:
Indicates that the system is temporarily unavail-
able, possibly due to a sensor being dirty or cov-
ered with ice, etc.
 Follow the instructions displayed on the
multi-information display. ( P.367, 523)
Warning lightDetails/Actions
Indicates a malfunction in the BSM (Blind Spot
Monitor) function
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the rear bumper around the radar
sensor is covered with dirt, etc. ( P.350)
 Follow the instructions displayed on the
multi-information display. ( P.348, 523)

5168-2. Steps to take in an emergency
■RCTA OFF indicator* (warning buzzer)
*: This light illuminat es on the multi-information display.
■Slip indicator light
■Brake Override System/Drive-Start Control/PKSB (if
equipped) warning light* (warning buzzer)
*: This light illuminates on the mu lti-information display with a message.
Warning lightDetails/Actions
(If equipped)
Indicates a malfunctio n in the RCTA (Rear
Cross Traffic Alert) function
 Have the vehicle inspected by your Toyota
dealer immediately.
Indicates that the rear bumper around the radar
sensor is covered with dirt, etc. ( P.350)
 Follow the instructions displayed on the
multi-information display. ( P.348, 523)
Warning lightDetails/Actions
Indicates a malfunction in:
The VSC/Trailer Sway Control system;
 The TRAC system;
 The Trail Mode function; or
 The hill-start assist control system
 Have the vehicle inspected by your Toyota
dealer immediately.
Warning lightDetails/Actions
When a buzzer sounds:
Brake Override System is malfunctioning;
 Drive-Start Control is operating;
 Drive-Start Control is malfunctioning; or
 Parking Support Brake function (for static
objects) (if equipped) is operating
 Follow the instructions displayed on the
multi-information display and head-up
display (if equipped).
When a buzzer does not sound:
Brake Override System is operating
 Release the accelerator pedal and
depress the brake pedal.

5198-2. Steps to take in an emergency
8
When trouble arises
The rear passengers’ seat belt w arning buzzer sounds to alert the rear
passengers that his o r her seat belt is not fastened. If the se at belt is
unfastened, the buzzer sounds intermittently for a certain peri od of time,
after the seat belt is fastened and unfastened and the vehicle reaches a
certain speed.
■Warning buzzer
In some cases, the buzzer may not
be heard because of noisy place or
an audio sound.
■Front passenger detection sen-
sor, seat belt reminder and
warning buzzer
●If luggage is placed on the front
passenger seat, the front passen-
ger detection sensor may cause
the warning light to flash and the
warning buzzer to sound even if a
passenger is not sitting in the
seat.
●If a cushion is placed on the seat,
the sensor may n ot detect a pas-
senger, and the warning light may
not operate properly.
■SRS warning light
This warning light system monitors
the airbag sensor assembly, front
impact sensors, side impact sensors
(front door), side impact sensors
(front), side impact sensors (rear),
driver’s seat position sensor, front
passenger occupant classification
sensors, “AIR BAG ON” indicator
light, “AIR BAG OFF” indicator light,
front passenger’s seat belt buckle
switch, driver’s seat belt preten-
sioner, front passenger’s seat belt
pretensioner and force limiter, air-
bags, interconnecting wiring and
power sources. ( P.35)
■If the malfunction indicator
lamp comes on while driving
First check the following:
●Is the fuel t ank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely. The light will go off after several
driving trips.
If the light does not go off even after
several trips, con
tact your Toyota
dealer as soon as possible.
■Electric power steering system
warning light (warning buzzer)
When the 12-volt battery charge
becomes insufficien t or the voltage
temporarily drops, the electric power
steering system warning light may
come on and the warning buzzer
may sound.
At this time, the functions of the air
conditioning, etc. may be partially
limited in order to reduce the power
consumption of the 12-volt battery.
■When the tire pressure warning
light comes on
Inspect the tires to check if a tire is
punctured.
If a tire is punctured: P.527
If none of the tires are punctured:
Turn the power switch to OFF then
turn it to ON. Check if the tire pres-
sure warning light comes on or
blinks.
If the tire pressur e warning light
blinks for approximately 1 minute
then stays on
There may be a malfunction in the
tire pressure warning system. Have
the vehicle inspected by your
Toyota dealer immediately.
If the tire pressur e warning light
comes on
1 After the temperature of the tires
has lowered sufficiently, check
the inflation pressure of each tire
and adjust them to the specified
level.

5779-2. Customization
9
Vehicle specifications
*1: Except for Canada
*2: If equipped
■Automatic light control system* ( P.295)
*: If equipped
■Rear window wiper ( P.304)
■PCS (Pre-Collision System) ( P.315)
FunctionDefault settingCustomized
setting
Light sensor sensitivityStandard–2 to 2O–O
Time elapsed before head-
lights automatically turn off
after doors are closed
30 seconds
Off
O–O60 seconds
90 seconds
Windshield wiper linked
headlight illuminationOnOff––O
FunctionDefault settingCustomized setting
Back door opening linked
rear window wiper stop func-
tion
OffOn––O
Washer linked rear window
wiper operationOnOff––O
Shift position linked rear win-
dow wiper operation
(  P.305)
Only once
Off
––OContinuous
FunctionDefault settingCustomized
setting
PCS (Pre-Collision System)OnOff–O–
Adjust alert timingMiddleEarly–O–Late
ABC
ABC
ABC

597What to do if... (Troubleshooting)
tem can be started in a tem-
porary way. (P.538)
 Is the 12-volt battery dis-
charged? ( P.539)
 Is the power switch in ON?
If you cannot release the shift
lever by depressing the brake
pedal with the power switch in
ON ( P.286)
 It is locked automatically to
prevent theft of the vehicle.
( P.280)
 Is the window lock switch
pressed?
The power window except for
the one at the driver’s seat
cannot be operated if the win-
dow lock switch is pressed.
( P.248)
 The auto power off function
will be operated if the vehicle
is left in ACC or ON (the
hybrid system is not operat- ing) for a period of time.
(
P.283)
 The seat belt reminder light is
flashing
Are the driver and the passengers
wearing the seat belts? ( 
P.518,
519
)
 The parking brake indicator is
on
Is the parking br ake released?
( 
P.290)
Depending on the situation,
other types of warning buzzer
may also sound. ( P.511, 523)
 Did anyone inside the vehicle
open a door during setting the
alarm?
The sensor detects it and the
alarm sounds. ( P.73)
To stop the alarm, turn the power
switch to ON or start the hybrid sys-
tem.
 Is the message displayed on
the multi-information display?
Check the message on the
multi-information display.
The shift lever cannot be
shifted from P even if you
depress the brake pedal
The steering wheel can-
not be turned after the
hybrid system is stopped
The windows do not open
or close by operating the
power window switches
The power switch is
turned off automatically
A warning buzzer sounds
during driving
An alarm is activated and
the horn sounds (if
equipped)
A warning buzzer sounds
when leaving the vehicle

599Alphabetical Index
Alphabetical Index
A
A/C“My Room Mode” ................. 144
Air conditioning filter ............. 483
Automatic air conditioning sys-tem ..................................... 396
Eco air conditioning mode .... 397
Front seat concentrated airflow mode (S-FLOW) ................. 402
Humidity sensor ................... 404
Remote Air Conditioning System ........................................... 405
ABS (Anti-lock Brake System) ............................................... 380Function ............................... 380
Warning light ........................ 513
ACA (Active Cornering Assist) ............................................... 381
AC charging cable .................. 102 CCID (Charging Circuit Interrupt-ing Device) ......................... 103
If the charging connector cannot be unlocked ........................ 110
Indicator ............................... 104
Locking and unlocking.......... 108
Maintenance......................... 106
Safety functions.................... 104
Acoustic Vehicle Alerting Sys- tem ........................................... 85
Active Cornering Assist (ACA) ............................................... 381
Adaptive Front-lighting System (AFS)...................................... 297
AFS (Adaptive Front-lighting System) ................................. 297
Airbags ...................................... 34 Airbag operating conditions.... 36
Airbag precautions for your child............................................. 39
Airbag warning light.............. 513
Correct driving posture ........... 27 Curtain shield airbag operating
conditions .............................37
Curtain shield air bag precautions
.............................................39
Front passenger occupant clas- sification system ...................44
General airbag precautions ....39
Locations of airbags ...............34
Modification and disposal of air- bags......................................42
Seat cushion airbag................34
Side airbag operating conditions .............................................37
Side airbag precautions..........39
Side and curtain shield airbags operating conditions .............37
Side and curtain shield airbags precautions ...........................39
SRS airbag instructions for Canadian owners ...............586
SRS airbags ...........................34
SRS warning light .................513
Air conditioning filter .............483
Air conditioning system “My Room Mode” ..................144
Air conditioning filter .............483
Automatic air conditioning sys-tem .....................................396
Eco air conditioning mode ....397
Front seat concent rated airflow
mode (S-FLOW) .................402
Remote Air Conditioning System ...........................................405
Air intake vent ...........................91 Cleaning ...............................486
Alarm .........................................73 Alarm ......................................73
Warning buzzer .. ..................511
Anchor brackets ... ..............53, 62
Antenna (Smart key system) .217
Anti-lock brake system (ABS)380 Function................................380