air conditioning TOYOTA RAV4 PRIME 2021 Repair Manual

5098-2. Steps to take in an emergency
8
When trouble arises
When using a flat-bed truck to
transport the vehicle, use tire
strapping belts. Refer to the
owner’s manual of the flat-bed
truck for the tire strapping
method.
In order to suppress vehicle
movement during transporta-
tion, set the parking brake and
turn the power switch off.
Fluid leaks under the vehicle
(Water dripping from the air
conditioning after use is nor-
mal.)
 Flat-looking tires or uneven
tire wear
 High coolant temperature
warning light flashes or come
on
 Changes in exhaust sound
 Excessive tire squeal when
cornering
 Strange noises related to the
suspension system
 Pinging or other noises
related to the hybrid system
 Engine missing, stumbling or
running roughly
 Appreciable loss of power
 Vehicle pulls heavily to one
Using a flatbed truckIf you think something
is wrong
If you notice any of the fol-
lowing symptoms, your
vehicle probably needs
adjustment or repair. Con-
tact your Toyota dealer as
soon as possible.
Visible symptoms
Audible symptoms
Operational symptoms

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.

5248-2. Steps to take in an emergency
a safe place and, if the fuel level is
low, refuel the vehicle.
• “Hybrid System Stopped”
• “Engine Stopped”
●If “Maintenance required for
DCDC converter cooling parts
See Owner’s Manual” is shown,
the filter may be clogged, the air
intake vent may be blocked, or
there may be a gap in the duct.
Therefore, perform the following
correction procedure.
• If the air intake vent or filter of the DC/DC converter are dirty, per-
form the procedures on P.486 to
clean them.
• If the warning message is shown
when the air intake vent and filter
of the DC/DC converter are not
dirty, have the vehicle inspected
at your Toyota dealer.
●If “12-Volt Battery Charging Sys-
tem Malfunction Stop in a Safe
Place See Owner’s Manual” is
shown
Indicates a malfunction in the vehi-
cle’s charging system. Pull over and
stop the vehicle as soon as it is safe
to do so.
While the message is displayed, the
functions of the air conditioning, etc.
may be partially lim ited in order to
reduce the power consumption of
the 12-volt battery.
■If “Hybrid System Overheated
Output Power Reduced” is
shown
The message may be shown when
driving under severe operating con-
ditions. (For example, when driving
up a long steep hill or driving up a
steep hill in reverse.)
Coping method: P.544
■If “Traction Battery Needs to be
Protected Refrain from the Use
of N Position” is shown
This message may be displayed
when the shift lever is in N. As the hybrid battery (traction bat-
tery) cannot be charged when the
shift lever is in N, shift the shift lever
to P when the vehicle is stopped.
■If “Traction Battery Needs to be
Protected Shift into P to
Restart” is shown
This message is displayed when the
hybrid battery (traction battery)
charge has becom e extremely low
because the shift lever has been left
in N for a certain amount of time.
When operating the vehicle, shift to
P and restart the hybrid system.
■If “Shift to P when Parked” is
shown
Message is displayed when the
driver’s door is opened without turn-
ing the power switch to OFF with the
shift lever in any p osition other than
P.
Shift the shift lever to P.
■If “Shift is in N Release Acceler-
ator Before Shifting” is shown
Message is displayed when the
accelerator pedal has been
depressed and the shift lever is in N.
Release the accelerator pedal and
shift the shift lever to D or R.
■If “Press Brake when Vehicle is
Stopped Hybrid System may
Overheat” is shown
Message is displayed when the
accelerator pedal is depressed to
maintain the vehicl e position when
stopped on a upward slope, etc.
If this continues, the hybrid system
may overheat.
Release the accelerator pedal and
depress the brake pedal.
■If “Auto Power OFF to Conserve
Battery” is shown
Power was turned off due to the
automatic power off function.
Next time when starting the hybrid
system, operate the hybrid system
for approximately 5 minutes to

5458-2. Steps to take in an emergency
8
When trouble arises
the steam subsides.
If you do not see steam:
Carefully lift the hood.
3 After the hybrid system has
cooled down sufficiently,
inspect the hoses and radia-
tor core (radiator) for any
leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact your Toyota
dealer.
4The coolant level is satisfac-
tory if it is between the
“FULL” and “LOW” lines on
the reservoir.
Reservoir
“FULL” line
“LOW” line 5
Add coolant if necessary.
Water can be used in an emer-
gency if engine coolant is unavail-
able.
If water was added in an emer-
gency, have the vehicle inspected
at your Toyota dealer as soon as
possible.
6Start the hybrid system and
turn the air conditioning sys-
tem on to check that the radi-
ator cooling fan operates and
to check for coolant leaks
from the radiator or hoses.
The fan operates when the air con-
ditioning system is turned on imme-
diately after a cold start. Confirm
that the fan is operating by check-
ing the fan sound and air flow. If it is
difficult to check these, adjust the
temperature control switch to “LO”
and turn the “A/C” switch ON and
OFF. After this, turn the air condi-
tioning system on and off repeat-
edly. (The fan may not operate in
freezing temperatures.)
7 If the fan is not operating:
Stop the hybrid system
immediately and contact your
Toyota dealer.
If the fan is operating:
Have the vehicle inspected at
the nearest Toyota dealer.
8 Check if “Engine Coolant
Temp High Stop in a Safe
A
B
A
B
C

5809-2. Customization
*: If equipped
■Automatic air conditioning system (P.396)
■Seat ventilators* ( P.407)
*: If equipped
■Remote Air Conditioning System ( P.405)
FunctionDefault settingCustomized
setting
A/C Auto switch operationOnOffO–O
Switching to t he outside air
mode when the vehicle is
parked
OnOff––O
FunctionDefault settingCustomized setting
Blower levelNormalDecrease––O
FunctionDefault settingCustomized setting
Operation using the “A/C”
button on the wireless
remote controlPress and hold (short)
Press once
––O
Press twice
Press and hold (long)
Off
Stopping operation using the
“A/C” button on the wireless
remote control
Press twice
Press once
––O
Press and hold (short)
Press and hold (long)
Off
ABC
ABC
ABC

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

600Alphabetical Index
Warning light ........................ 513
Approach warning .................. 343
Armrest ................................... 434
Assist grips ............................. 434
AUTO EV/HV mode ................... 77
AUTO EV/HV mode switch....... 78
Automatic air conditioning sys- tem ......................................... 396“My Room Mode” ................. 144
Air conditioning filter ............. 483
Eco air conditioning mode .... 397
Front seat concentrated airflow mode (S-FLOW) ................. 402
Remote Air Conditioning System ........................................... 405
Automatic door locking and unlocking systems ............... 202
Automatic headlight leveling system ................................... 296
Automatic High Beam (AHB) . 298
Automatic light control system ............................................... 296
Auxiliary boxes ....................... 415
Average fuel consumption .... 189
Average fuel economy ........... 172
Average vehicle speed .. 176, 189
B
Back door ................................ 203 Hands Free Power Back Door........................................... 208
Power back door .................. 207
Wireless remote control ....... 207
Back-up lights Replacing light bulbs ............ 497
Wattage ................................ 556
Battery (12-volt battery) ......... 466 If the 12-volt battery is dis-charged .............................. 539
Preparing and c hecking before
winter.................................. 387
Replacing ............................. 542 Warning light ........................511
Battery (traction battery)..........87 Charging ...............................123
Location ..................................87
Specification .........................552
Blind Spot Monitor (BSM) ......347 Blind Spot Monitor function ..350
Rear Cross Traffic Alert function...........................................353
Bottle holders .........................415
Brake Brake Hold ............................293
Fluid......................................464
Parking brake .......................290
Regenerative braking .............82
Warning light ........................511
Brake assist ............................380
Brake Hold...............................293
Brake Override System ..........259
Break-in tips ............................259
Brightness control Instrument panel light control169
BSM (Blind Spot Monitor) ......347 Blind Spot Monitor function ..350
Rear Cross Traffic Alert function...........................................353
C
Care Aluminum wheels .................444
Exterior .................................444
Front camera ........................310
Interior ..................................447
Radar sensor ........................310
Seat belts .............................447
Water-repellent coating ........445
Cargo capacity ................265, 268
Cargo hooks............................417
Chains......................................389
Charging “My Room Mode” ..................144
AC charging cable ................102

604Alphabetical Index
EV driving range ....................... 95
Event data recorder (EDR)......... 8
EV mode .................................... 77
Exhaust gas precautions ......... 44
F
Flat tire .................................... 527Tire pressure warning system........................................... 471
Floor mats ................................. 26
Fluid Brake ............................ 464, 555
Hybrid transmission.............. 554
Rear differential .................... 554
Washer ................................. 465
Fog lights Replacing light bulbs ............ 497
Wattage ................................ 556
Footwell lights ..... ................... 410
Front passenger’s seat belt reminder light ....................... 518
Front passenger occupant clas- sification system .................... 44
Front seat concentrated airflow mode (S-FLOW) .................... 402
Front seat heaters .................. 407
Front seats .............................. 224 Adjustment ........................... 224
Cleaning ............................... 447
Correct driving posture ........... 27
Driving position memory....... 227
Head restraints ..................... 230
Memory recall function ......... 228
Seat heaters ......................... 407
Seat position memory .......... 227
Seat ventilators .................... 407
Front side marker lights ........ 295 Light switch .......................... 295
Replacing light bulbs ............ 497
Wattage ................................ 556
Front turn signal lights Replacing light bulbs ............ 497 Turn signal lever .
..................289
Wattage ................................556
Fuel Capacity ...............................551
Fuel gauge ...........................165
Gas station information ........616
Information ......... ..................557
Refueling ..............................306
Type .............................551, 557
Warning light ........................518
Fuel consumption information Average fuel consumption ....189
Current fuel consumption .....189
Fuel filler door.........................307 If the fuel filler door cannot be opened ...............................536
Opener .................................307
Refueling ..............................306
Fuses .......................................495
G
Garage door opene r ...............435
Gas station information .........616
Glove box ................................413
H
Headlights ...............................295 Adaptive Front-lighting System (AFS) ..................................297
Automatic headlight leveling sys- tem .....................................296
Automatic High Beam (AHB) 298
Light switch...........................295
Replacing light bulbs ............497
Wattage ................................556
Head restraints .......................230
Head-up display ......................182
Heated steering wheel............407
Heaters Automatic air conditioning sys-tem .....................................396

Alphabetical Index609
Warning light ........................ 513
Power switch .......................... 279 Auto power off function ........ 283
Changing the power switch modes ................................ 283
If your vehicle has to be stopped in an emergency................. 505
Starting the hybrid system.... 279
Power windows Catch protection function ..... 246
Door lock linked window opera-tion ..................................... 247
Jam protection function ........ 246
Operation ............................. 246
Window lock switch .............. 248
Pre-Collision System (PCS) Enabling/disabling the pre-colli-sion system ........................ 317
Function ............................... 315
Warning light ........................ 514
Warning message ........ 313, 526
Predictive efficient drive .......... 85
R
Radar cruise control Dynamic radar cruise control with full-speed range .......... 336
Radiator ................................... 463
RCTA (Rear Cross Traffic Alert) RCTA Function............. 347, 353
Warning message ................ 348
Rear Cross Traffic Alert (RCTA) ............................................... 347
Rear passengers’ seat belt reminder light ....................... 519
Rear seat ................................. 225 Folding down the rear seatbacks........................................... 226
Head restraints ..................... 230
Seat heaters ......................... 408
Rear side marker lights Light switch .......................... 295 Replacing light bulbs ............497
Rear turn signal lights Replacing light bulbs ............497
Turn signal lever . ..................289
Wattage ................................556
Rear view mirror Digital Rear-view Mirror ........234
Inside rear view mirror ..........233
Outside rear view mirrors .....244
Rear window defogger ...........398
Rear window wiper .................304
Refueling ............ .....................306
Capacity ...............................551
Fuel types .....................551, 557
If the fuel filler door cannot be opened ...............................536
Opening the fuel tank cap ....307
Regenerative braking ...............82
Remote Air Conditioning System ...............................................405
Replacing Electronic key battery ...........493
Fuses....................................495
Light bulbs ............................497
Tires .....................................527
Wiper insert ..........................489
Reporting safety defects for U.S. owners ...................................584
Resetting the message indicat- ing maintenance is required 451
Road accident cautions ...........89
Road Sign Assist ....................333
RSA (Road Sign Assist) .........333
S
Safety Connect .........................66
Seat belt reminder light..518, 519
Seat belts...................................29 Adjusting the seat belt shoulder anchor height........................31
Automatic Locking Retractor (ALR) ....................................31

614Alphabetical Index
Washing and waxing .............. 444
WeightCargo capacity ............. 265, 268
Load limits ............................ 268
Weight .................................. 550
Wheels ..................................... 482 Replacing wheels ................. 482
Size ...................................... 555
Window glasses Power windows .................... 246
Window lock switch ............... 248
Windows Power windows .................... 246
Rear window defogger ......... 398
Washer ......................... 301, 304
Windshield defogger .............. 398
Windshield wiper de-icer ....... 403
Windshield wipers Intermittent windshield wipers........................................... 301
Position ........................ 301, 304
Rain-sensing windshield wipers ........................................... 301
Replacing the wiper insert .... 489
Winter driving tips .................. 387
Wiper insert ............................ 489
Wireless charger .................... 427
Wireless remote c ontrol ........ 196
Battery-saving function......... 218
Locking/Unlocking ................ 196
Panic mode .......................... 196
Remote Air Conditioning System ........................................... 405
Replacing the battery ........... 493
For vehicles with Premium Audio with Navigation or
Audio Plus, refer to “NAVI-
GATION AND MULTIME- DIA SYSTEM OWNER’S
MANUAL” for information
regarding the equipment
listed below.
· Navigation system
· Audio system
· Rear view monitor system
· Toyota parking assist monitor
· Panoramic view monitor