engine coolant TOYOTA RAV4 PRIME 2023 Owner's Manual

5778-2. Steps to take in an emergency
8
When trouble arises
dropped and the vehicle may be
driven normally.
However, if the message appears
again frequently, contact your
Toyota dealer.
WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●After the hybrid system has
been turned off, check that the
“READY” indicator is off.
When the hybrid system is oper-
ating, the gasoline engine may
automatically start, or the cool-
ing fan may suddenly operate
even if the gasoline engine
stops. Do not touch or approach
rotating parts such as the fan,
which may lead to fingers or
clothing (especially a tie, a scarf
or a muffler) getting caught,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while the hybrid system
and radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine/power
control unit coolant
Add coolant slowly after the
hybrid system has cooled down
sufficiently. Adding cool coolant to
a hot hybrid system too quickly
can cause damage to the hybrid
system.
■To prevent damage to the
cooling system
Observe the following precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust, etc.).
●Do not use any coolant additive.

5839-1. Specifications
9
Vehicle specifications
SAE 0W-16
SAE 0W-16 is the best choice
for good fuel economy and good
starting in cold weather.
If SAE 0W-16 is not available,
SAE 0W-20 oil may be used.
However, it must be replaced
with SAE 0W-16 at the next oil
change.Outside temperature
Oil viscosity (0W-16 is explained
here as an example):
• The 0W in 0W-16 indicates the characteristic of the oil
which allows cold startability. Oils with a lower value before
the W allow for easier starting
of the engine in cold weather.
• The 16 in 0W-16 indicates the viscosity characteristic of the
oil when the oil is at high tem-
perature. An oil with a higher
viscosity (one with a higher
value) may be better suited if
the vehicle is operated at high
speeds, or under extreme
load conditions.
How to read oil container label:
API registered mark is added to
some oil containers to help you
select the oil you should use.
*: The coolant capacity is the quantity of reference.
A
Cooling system
Capacity*Gasoline engine8.7 qt. (8.2 L, 7.2 Imp. qt.)
Power control unit2.1 qt. (2.0 L, 1.8 Imp. qt.)
Coolant type
Use either of the following:
 “Toyota Super Long Life Coolant”
 Similar high-quality ethylene gly-
col-based non-silicate, non-amine,
non-nitrite, and non-borate cool-
ant with long-life hybrid organic
acid technology
Do not use plain water alone.

5939-1. Specifications
9
Vehicle specifications
■Temperature A, B, C
The temperature grades are A
(the highest), B, and C, repre-
senting the tire’s resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.
Warning: The temperature grades
of a tire assume tha
t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked
for three hours or more, or has not been driven
more than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of transmis-
sion, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as factory-
installed equipment (whether installed or not)
Curb weight
The weight of a motor vehicle with standard
equipment, including th e maximum capacity of
fuel, oil and coolant, and if so equipped, air con-
ditioning and additional weight optional engine

Alphabetical Index637
Charging schedule function.. 128
Charging time may increase 120
High voltage components....... 85
How to charge ...................... 121
Information related to charging display ................................ 116
Opening and closing the charging port lid .................... 98
Power sources precautions .. 112
Power sources th at can be used
........................................... 110
Safety functions.................... 117
When charging cannot be car- ried out ............................... 152
Charging port ........................... 97 If the charging port lid does not open ................................... 106
Locking and unlocking.......... 105
Opening and closing .............. 98
Child-protector ....................... 226
Child restraint s ystem ............. 50
Fixed with a LATCH system ... 59
Fixed with a seat belt ............. 54
Front passenger occupant clas- sification system ................... 43
Points to remember ................ 50
Riding with children ................ 49
Types of child restraint system installation met hod ............... 52
Using an anchor bracket ........ 61
Child safety ............................... 49 12-volt battery precautions . 495, 573
Airbag precautions ................. 38
Back door precautions ......... 227
Charging precautions ........... 118
Child restraint system............. 52
Heated steering wheel and seat
heater precautions ............. 433
How your child should wear the seat belt................................ 30
Moon roof precau tions ......... 274 Panoramic moon roof precau-
tions ....................................278
Power window lock switch ....272
Power window precautions...271
Rear door child-protectors ....226
Seat belt extender precautions .............................................30
Seat belt precautions..............29
Seat heater precautions .......433
Cleaning ..........................472, 475 Aluminum wheels .................472
DC/DC Converter air intake vent
...........................................515
Exterior .................................472
Front camera ........................336
Interior ..................................475
Radar sensor ........................336
Seat belts .............................475
Water-repellent coating ........473
Coat hooks ..............................455
Condenser ............. ..................492
Console box ............................439
Consumption screen ..............212
Convenience Services (Sugges- tion function).........195, 207, 601
Coolant Capacity ...............................583
Checking ..............................491
Preparing and checking before winter ..................................413
Warning light ........................542
Cooling system .......................491 Engine overheating ..............574
Hybrid system overheating ...576
Cruise control Dynamic radar cruise control with full-speed range ..........366
Cup holders.............................439
Current fuel economy ....186, 199
Curtain shield airbags ..............33
Customizable featu res ...........599

Alphabetical Index639
Brake System) ...................... 407
Eco drive mode ...................... 404
EDR (Event data recorder)......... 8
E-Four (Electronic On-Demand AWD system) ........................ 408
Elapsed time ................... 190, 202
Electric motor Location.................................. 74
Specification ......................... 582
Electric Power Steering (EPS) Function ............................... 408
Warning light ........................ 543
Electronically Controlled Brake System (ECB) ....................... 407
Electronic key Battery-saving function......... 242
If the electronic key does not operate properly ................. 567
Replacing the battery ........... 522
Electronic sunshade .............. 276 Jam protection function ........ 277
Operation ............................. 276
Emergency, in case of If a warning buzzer sounds .. 541
If a warning light turns on ..... 541
If a warning message is dis-played................................. 552
If the 12-volt battery is dis- charged .............................. 569
If the electronic key does not operate properly ................. 567
If the fuel filler door cannot be opened ............................... 566
If the hybrid sy stem will not start
........................................... 564
If the vehicle is submerged or water on the road is rising .. 536
If you have a flat tire ............. 557
If you lose your keys ............ 566
If you think something is wrong ........................................... 540
If your vehicle becomes stuck ...........................................578
If your vehicle has to be stopped in an emergency .................535
If your vehicle needs to be towed ...........................................538
If your vehicle ove rheats ......574
Emergency flashers ...............534
Energy monitor .......................212
Engine Compartment........................489
Exhaust gas precautions ........48
Hood .....................................486
How to start the hybrid system...........................................304
Identification number ............581
If the hybrid sys tem will not start
...........................................564
If your vehicle has to be stopped in an emergency .................535
Overheating ..........................574
Power switch ........................304
Tachometer ..........................178
Engine coolant Capacity ...............................583
Checking ..............................491
High coolant temperature warn-ing light ...............................542
Preparing and checking before winter ..................................413
Warning light ........................542
Engine oil Capacity ...............................582
Checking ..............................489
Preparing and checking before winter ..................................413
Warning light ........................542
Enhanced Vehicle Stability Con- trol (Enhanced VSC ) .............407
Enhanced VSC (Enhanced Vehi- cle Stability Control).............407
EPS (Electric Po wer Steering)
Function................................408

Alphabetical Index649
Vehicle Stability Control (VSC)............................................... 407
Ventilators (seat ventilators) . 433
VSC (Vehicle Stability Control) ............................................... 407
W
Warning buzzers Approach warning ................ 373
Brake hold ............................ 546
Brake Override System ........ 546
Brake system ....................... 541
BSM OFF indicator............... 545
Charging system .................. 541
Downshifting................. 311, 313
Drive-Start Control ............... 546
Electric power steering ......... 543
High coolant temperature ..... 542
Hybrid system overheat ....... 542
Intuitive parking assist OFF indi-cator ................................... 544
Intuitive parking assist .......... 387
Low engine oil pressure ....... 542
LTA (Lane Tracing Assist).... 351
LTA indicator ........................ 544
Open door ............................ 226
Open hood ........................... 226
Open window ....................... 271
PKSB OFF indicato r ............. 545
Pre-collision warning ............ 340
Radar cruise control ............. 373
RCTA (Rear Cross Traffic Alert) ........................................... 379
RCTA OFF indicator............. 545
RSA (Road Sign Assist) ....... 363
Seat belt reminder ................ 548
Shift position................. 312, 313
Vehicle sway warning........... 356
Warning lights ABS ...................................... 543
Brake hold operated indicator........................................... 546 Brake Override System ........546
Brake system ........................541
BSM OFF indicator ...............545
Charging system ..................541
Driver’s seat be
lt reminder light
...........................................548
Drive-Start Control ................546
Electric power steering .........543
Engine ..................................542
Front passenger’s seat belt reminder light......................548
High coolant temperature .....542
Hybrid system overheat ........542
Intuitive parking assist OFF indi- cator ...................................544
Low engine oil pressure .......542
Low fuel level........................547
LTA indicator ........................544
Malfunction indica tor lamp ....542
Parking brake indicator.........547
PCS warning light .................544
PKSB (Parking Support Brake) ...........................................545
PKSB OFF indicator .............545
RCTA OFF indicator .............545
Rear passengers’ seat belt reminder lights ....................548
Seat belt reminder light ........548
Slip indicator .........................546
SRS ......................................543
Tire pressure ...... ..................547
Warning messages .................552
Washer Checking ..............................494
Low washer fluid warning mes-sage............................494, 552
Preparing and checking before winter ..................................413
Switch ...........................327, 330
Washing and waxing ..............472
Weight Cargo capacity .............289, 292