2022 TOYOTA RAV4 PLUG-IN HYBRID check engine

4887-3. Do-it-yourself maintenance
1Turn the power switch off.
Confirm that the charging connector is
not connected. Also, do not use the
Remote Air Conditioning System during
the procedure.
2Open the fuse box cover.
Engine compartment: Type A
fuse box
Push claws and to completely
release the lock, and then lift up the
cover.
Engine compartment: Type B
fuse box
Push claws and to completely
release the lock, and then lift up the
cover.
Left side instrument panel
Left-hand drive vehicles: Remove the
lid.
Right-hand drive vehicles: Push the tab
in and remove the cover, and then
remove the lid.
Checking and replacing
fuses
If any of the electrical compo-
nents do not operate, a fuse
may have blown. If this hap-
pens, check and replace the
fuses as necessary.
Checking and replacing
fuses
AB
AB

519
8
8-2. Steps to take in an emergency
When trouble arises
• A warning message about an opera-
tion of the brake pedal may be shown while the driving support systems such as PCS (Pre-Collision system) (if
equipped) or the dynamic radar cruise control with full-speed range (if equipped) is operating. If a warning
message is shown, be sure to decel- erate the vehicle or follow an instruc-tion shown on the multi-information
display. • A warning message is shown when Brake Override System operates.
( P.257) • A warning message is shown when Drive-Start Control or Parking Support
Brake function (if equipped) operates ( P.257, 379). Follow the instructions on the multi-information display.
OIf a message about an operation of the power switch is shown
An instruction for operation of the power
switch is shown when the incorrect pro-
cedure for starting the hybrid system is
performed or the power switch is oper-
ated incorrectly. Follow the instructions
shown on the multi-information display
to operate the power switch again.
OIf a message about a shift lever opera- tion is shown
To prevent the shift lever from being
operated incorrectly or the vehicle from
moving unexpectedly, a message that
requires shifting the shift lever may be
shown on the multi-information display.
In that case, follow the instruction of the
message and shift the shift lever.
OIf a message or image about an open/close state of a part or replen-
ishment of a consumable is shown
Confirm the part indicated by the multi-
information display or a warning light,
and then perform the coping method
such as closing the open door or replen-
ishing a consumable.
QIf a message that indicates the
need for visiting any authorized Toyota retailer or Toyota autho-rized repairer, or any reliable
repairer is displayed
The system or part shown on the multi- information display is malfunctioning.
Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer immediately.
QIf a message that indicates the need for referring to Owner’s Man-ual is displayed
OIf the following messages are shown, follow the instructions, accordingly.
• “Blind Spot Monitor Unavailable” ( P.350) • “RCTA Unavailable” ( P.350)
• “Engine Coolant Temp High” ( P.551) • “Exhaust Filter Full” ( P.390)
OIf the following messages are shown, there may be a malfunction.
Immediately have the vehicle inspected by any authorized Toyota retailer or
Toyota authorized repairer, or any reli- able repairer.• “Plug-in Charging System Malfunc-
tion” • “Hybrid System Malfunction”• “Charging system malfunction”
• “Check Engine” • “Traction battery system malfunction”• “Accelerator System Malfunction”
• “Smart Entry & Start System Malfunc- tion”
OIf the following messages are shown, there may be a malfunction.
Immediately stop the vehicle in a safe place and contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer. Con- tinuing to drive the vehicle may be dan-gerous.
•“Oil Pressure Low” • “Braking Power Low”
OIf any of the following messages are shown on the multi-information dis-

521
8
8-2. Steps to take in an emergency
When trouble arises
QIf “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level may be low. Check the level of the engine oil, and add
engine oil if necessary. This message may be displayed if the vehicle is stopped on a slope. Move the vehicle to
a level surface and check if the mes- sage disappears.
QIf a message that indicates the mal-function of front camera is dis-
played (if equipped)
The following systems may be sus- pended until the problem shown in the
message is resolved. ( P.309, 508)
OPCS (Pre-Collision System)*
OLTA (Lane Tracing Assist)*
OAHB (Automatic High Beam)*
ORSA (Road Sign Assist)*
ODynamic radar cruise control with full-
speed range*
*: If equipped
QIf a message that indicates the mal- function of radar sensor is dis-
played
The following systems may be sus- pended until the problem shown in the
message is resolved. ( P.309, 508)
OPCS (Pre-Collision System)*
OLTA (Lane Tracing Assist)*
ODynamic radar cruise control with full-
speed range*
*: If equipped
QIf “Radar Cruise Control Temporar- ily Unavailable See Owner’s Man-
ual” is shown
The dynamic radar cruise control with full-speed range system (if equipped) is
suspended temporarily or until the prob- lem shown in the message is resolved. (causes and coping methods: P.309)
QIf “Radar Cruise Control Unavail-
able” is shown
The dynamic radar cruise control with full-speed range system (if equipped)
cannot be used temporarily. Use the system when it becomes available again.
QWarning buzzer
 P.516
WARNING
QIf a warning light comes on or a warning buzzer sounds when a
warning message is shown on the multi-information display
 P.517
NOTICE
Q“High Power Consumption Par- tial Limit On AC/Heater Opera-
tion” is frequently shown
There is a possible malfunction relat- ing to the charging system or the 12-
volt battery may be deteriorating. Have the vehicle inspected by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
QIf “Maintenance Reqd. For Trac-tion Battery At Your Dealer” is
shown
The hybrid battery (traction battery) is scheduled to be inspected or
replaced. Have the vehicle inspected by any authorized Toyota retailer or Toyota authorized repairer, or any
reliable repairer immediately.
OContinuing to drive the vehicle with- out having the hybrid battery (trac-
tion battery) inspected will cause the hybrid system not to start.
OIf the hybrid system does not start, contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer immediately.

5528-2. Steps to take in an emergency
3After the hybrid system has
cooled down sufficiently, inspect
the hoses and radiator core
(radiator) for any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks, immediately contact any authorized Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
4 The coolant level is satisfactory
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 emergency if
engine coolant is unavailable. If water was added in an emergency,
have the vehicle inspected at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer as soon as possible.
6 Start the hybrid system and turn
the air conditioning system on to
check that the radiator cooling
fan operates and to check for
coolant leaks from the radiator
or hoses.
The fan operates when the air condi- tioning system is turned on immediately
after a cold start. Confirm that the fan is operating by checking 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
conditioning system on and off repeat- edly. (The fan may not operate in freez-ing temperatures.)
7 If the fan is not operating:
Stop the hybrid system immedi-
ately and contact any authorized
Toyota retailer or Toyota autho-
rized repairer, or any reliable
repairer.
If the fan is operating:
Have the vehicle inspected at
the nearest authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
A
B
A
B
C

553
8
8-2. Steps to take in an emergency
When trouble arises
8 Check if “Engine Coolant Temp
High Stop in a Safe Place See
Owner’s Manual” is shown on
the multi-information display.
If the message does not disap-
pear:
Stop the hybrid system and con-
tact any authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
If the message is not displayed:
Have the vehicle inspected at
the nearest authorized Toyota
retailer or Toyota authorized
repairer, or any reliable repairer.
QIf “Hybrid System Overheated
Output Power Reduced” is
shown on the multi-informa-
tion display
1 Stop the vehicle in a safe place.
2 Stop the hybrid system and
carefully lift the hood.
3 After the hybrid system has
cooled down, inspect the hoses
and radiator core (radiator) for
any leaks.
Radiator
Cooling fan
If a large amount of coolant leaks,
immediately contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
4 The coolant level is satisfactory
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 emergency if power control unit coolant is unavail-able.
If water was added in an emergency, have the vehicle inspected at any authorized Toyota retailer or Toyota
authorized repairer, or any reliable repairer as soon as possible.
6 After stopping the hybrid system
and waiting for 5 minutes or
more, start the hybrid system
A
B
A
B
C

5548-2. Steps to take in an emergency
again and check the multi-infor-
mation display.
If the message does not disappear:
Stop the hybrid system and contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable
repairer. If the message is not displayed: The hybrid system temperature has
dropped and the vehicle may be driven normally. However, if the message appears again
frequently, contact any authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
WARNING
QWhen inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
OIf steam is seen coming from under
the hood, do not open the hood until the steam has subsided. The engine compartment may be very
hot.
OAfter the hybrid system has been
turned off, check that the “READY” indicator is off.When the hybrid system is operat-
ing, the gasoline engine may auto- matically start, or the cooling 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, result-ing in serious injury.
ODo not loosen the coolant reservoir cap while the hybrid system and
radiator are hot. High temperature steam or coolant could spray out.
NOTICE
QWhen adding engine/power con-trol 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 dam- age to the hybrid system.
QTo prevent damage to the cool-ing system
Observe the following precautions:
OAvoid contaminating the coolant with foreign matter (such as sand or dust, etc.).
ODo not use any coolant additive.

561
9 9-1. Specifications
Vehicle specifications
QOil capacity (Drain and refill  reference*)
*: The engine oil capacity is a reference quantity to be used when changing the
engine oil. Warm up the engine and turn off the hybrid system, wait more than 5
minutes, and check the oil level on the dipstick.
QEngine oil selection
“Toyota Genuine Motor Oil” is used
in your Toyota vehicle. Toyota rec-
ommends the use of approved
“Toyota Genuine Motor Oil”.
Another motor oil of matching qual-
ity can also be used.
Oil grade:
0W-16:
API grade SN “Resource-Conserv-
ing”, SN PLUS “Resource-Conserv-
ing” or SP “Resource-Conserving”;
or ILSAC GF-6B multigrade engine
oil
0W-20 and 5W-30:
API grade SM “Energy-Conserv-
ing”, SN “Resource-Conserving”,
SN PLUS “Resource-Conserving”
or SP “Resource-Conserving”; or ILSAC GF-6A multigrade engine oil
Recommended viscosity (SAE):
SAE 0W-16 is filled into your
Toyota vehicle at manufacturing,
and the best choice for good fuel
economy and good starting in cold
weather.
If SAE 0W-16 oil is not available,
SAE 0W-20 oil may be used. How-
ever, it should be replaced with
SAE 0W-16 at the next oil change.
Hybrid battery (traction battery)
TypeLithium-ion battery
Voltage3.7 V/cell
Capacity51 Ah
Quantity96 cells
Nominal voltage355.2 V
Lubrication system
With filter4.5 L (4.8 qt., 4.0 Imp. qt.)
Without filter4.2 L (4.4 qt., 3.7 Imp. qt.)

589Alphabetical Index
When charging cannot be carried
out ............................................ 155
Charging port ................................ 105
If the charging port lid does not open
................................................. 120
Locking and unlocking ............... 120
Opening and closing .................. 106
Child-protector.............................. 207
Child restraint system .................... 50
Child restraint system installation
method....................................... 59
Fixed with a seat belt ................... 60
Fixed with an ISOFIX lower anchor-
age ............................................. 62
Points to remember...................... 51
Riding with children ...................... 49
Using a top tether anchorage....... 63
Child safety ..................................... 49
12-volt battery precautions. 461, 550
Airbag precautions ....................... 44
Back door precautions ............... 208
Charging precautions ................. 132
Heated steering wheel and seat
heater precautions ................... 416
How your child should wear the seat
belt ............................................. 36
Panoramic moon roof precautions
................................................. 252
Power window lock switch ......... 249
Power window precautions ........ 248
Rear door child-protectors ......... 207
Seat belt precautions ................... 35
Seat heater precautions ............. 416
Cleaning ................................ 442, 445
Aluminum wheels ....................... 442
DC/DC Converter air intake vent 479
Exterior....................................... 442
Front camera.............................. 301
Interior ........................................ 445
Radar sensor ............................. 301
Seat belts ................................... 445Water-repellent coating .............. 443
Clock ..............................................177
Coat hooks .................................... 439
Condenser ..................................... 458
Console box .................................. 423
Consumption screen .................... 193
Convenience Services (Suggestion
function) ...................................... 187
Coolant
Capacity ..................................... 562
Checking .................................... 457
Preparing and checking before win-
ter ............................................. 398
Warning light .............................. 509
Cooling system .............................457
Engine overheating .................... 551
Hybrid system overheating......... 553
Cruise control
Cruise control .............................344
Dynamic radar cruise control with
full-speed range .......................332
Cup holders ...................................424
Current fuel consumption ............196
Current fuel economy................... 179
Curtain shield airbags ....................39
Customizable features ................. 569
D
Daytime running light system ..... 288
Replacing light bulbs ..................491
DC/DC converter air intake vent .... 98
Cleaning ..................................... 479
Deck board .................................... 426
Deck under tray.............................427
Defogger
Outside rear view mirrors ........... 408
Rear window .............................. 408
Windshield.................................. 407
Digital Rear-view Mirror ............... 236
Dimensions ...................................558
Display