2021 TOYOTA RAV4 PLUG-IN HYBRID oil level

5TABLE OF CONTENTS
1
6
5
4
3
2
8
7
9
If the hybrid system will not start
.......................................... 601
If you lose your keys ........... 603
If the fuel filler door cannot be
opened.............................. 603
If the electronic key does not
operate properly ............... 604
If the 12-volt battery is dis -
charged............................. 606
If your vehicle overheats ..... 611
If the vehicle becomes stuck
.......................................... 615
9-1. Specifications
Maintenance data (fuel, oil level,
etc.)................................... 618
Fuel information .................. 627
9-2. Customization
Customizable features ........ 629
9-3. Initialization
Items to initialize ................. 643
What to do if... (Troubleshooting)
.......................................... 646
Alphabetical Index ............. 649
9Vehicle specifications
Index

1703-1. Instrument cluster
Warning lights inform the driver of
malfunctions in the indicated vehi -
cle’s systems.
*1: These lights turn on when the power
switch is turned to ON to indicate
that a system check is being per -
formed. They will turn off after the
hybrid system is on , or after a few
seconds. There may be a malfunc-
tion in a system if the light does not
come on, or turn off. Have the vehi -
cle inspected by any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer.
Warning lights
(Red)
Brake system warning
light*1 ( →P.568)
(Yellow)
Brake system warning
light*1 ( →P.568)
Charging system warn -
ing light*1 ( →P.569)
High coolant temperature
warning light*2 ( →P.569)
Hybrid system overheat
warning light*2 ( →P.569)
Low engine oil pressure
warning light*2 ( →P.569)
Malfunction indicator
lamp*1 ( →P.570)
SRS warning light*1
( →P.570)
ABS warning light*1
( →P.570)
(Red/yellow)
Electric power steering
system warning light*1
( →P.570)
(Flashes or illu- minates)
PCS warning light*1 (if
equipped) ( →P.571)
(Orange)
LTA indicator (if
equipped) ( →P.571)
Toyota parking assist-
sensor OFF indicator*3 ( i f
equipped) ( →P.572)
PKSB OFF indicator*1 (if
equipped) ( →P.572)
BSM OFF indicator*1 (if
equipped) ( →P.573)
RCTA OFF indicator*1 (if
equipped)
( →P.573)
Slip indicator light*1
( →P.573)
Brake Override Sys -
tem/Drive-Start Con -
trol/PKSB (if equipped)
warning light*2 ( →P.574)
(Flashes)
Brake hold operated indi-
cator*1 ( →P.574)
(Flashes)
Parking brake indicator
( →P.574)
Tire pressure warning
light*1 ( →P.575)
Low fuel level warning
light ( →P.575)
Driver’s and front pas -
senger’s seat belt
reminder light ( →P.575)
Rear passengers’ seat
belt reminder lights
( →P.576)

369
5
5-5. Using the driving support systems
Driving
Inside of displayed lines is white
Indicates that the system is recognizing
white (yellow) lines or a course*. When
the vehicle departs f rom its lane, the
white line display ed on the side the
vehicle departs from flashes orange.
Inside of displayed lines is black
Indicates that the syst em is not able to
recognize white (yellow) lines or a
course* or is temporarily canceled.
*: Boundary between asphalt and the
side of the road, su ch as grass, soil,
or a curb
■Operation conditions of each func -
tion
●Lane departure alert function
This function operates when all of the
following conditions are met.
• LTA is turned on. • Vehicle speed is approximately 50
km/h (32 mph) or more.*1
• System recognizes white (yellow) lane
lines or a course*2. (When a white
[yellow] line or course*2 is recognized on only one side, the system will oper -
ate only for the recognized side.)
• Width of traffic lane is approximately 3 m (9.8 ft.) or more.
• Turn signal lever is not operated.
(Vehicles with BSM: Except when another vehicle is in the lane on the
side where the turn signal was oper -
ated) • Vehicle is not bei ng driven around a
sharp curve.
• No system malfunctions are detected. ( →P.371)*1: The function operates even if the
vehicle speed is less than approxi -
mately 50 km/h (32 mph) when the
lane centering func tion is operating.
*2: Boundary between asphalt and the
side of the road, su ch as grass, soil,
or a curb
●Steering assist function
This function operates when all of the
following conditions are met in addition
to the operation condi tions for the lane
departure alert function.
• Setting for “Steering Assist” in the
screen of the multi-information display
is set to “ON”. ( →P.179)
• Vehicle is not accel erated or deceler- ated by a fixed amount or more.
• Steering wheel is not operated with a
steering force level suitable for chang - ing lanes.
• ABS, VSC, TRC and PCS are not
operating. • TRC or VSC is not turned off.
• Hands off steering wheel warning is
not displayed. ( →P.370)
●Vehicle sway warning function
This function operates when all of the
following conditions are met.
• Setting for “Sway Warning” in the
screen of the multi-information display is set to “ON”. ( →P.179)

3705-5. Using the driving support systems
• Vehicle speed is approximately 50
km/h (32 mph) or more. • Width of traffic lane is approximately 3
m (9.8 ft.) or more.
• No system malfuncti ons are detected. ( →P.371)
●Lane centering function
This function operates when all of the
following conditions are met.
• LTA is turned on.
• Setting for “Steering Assist” and “Lane
Center” in the screen of the multi-
information display are set to “ON”. ( →P.179)
• This function recognizes white (yel -
low) lane lines or the position of a pre - ceding vehicle (except when the
preceding vehicle is small, such as a
motorcycle). • The dynamic radar cruise control with
full-speed range is operating in vehi-
cle-to-vehicle distance control mode. • Width of traffic lane is approximately 3
to 4 m (10 to 13 ft.).
• Turn signal lever is not operated. • Vehicle is not being driven around a
sharp curve.
• No system malfuncti ons are detected. ( →P.371)
• Vehicle does not accelerate or decel-
erate by a fixed amount or more. • Steering wheel is n ot operated with a
steering force level suitable for chang-
ing lanes. • ABS, VSC, TRC an d PCS are not
operating.
• TRC or VSC is not turned off. • Hands off steering wheel warning is
not displayed. ( →P.370)
• The vehicle is being driven in the cen- ter of a lane.
• Steering assist func tion is not operat-
ing.
■Temporary cancelation of functions
●When operation conditions are no lon -
ger met, a function may be temporar - ily canceled. However, when the
operation conditions are met again,
operation of the fu nction is automati- cally restored. ( →P.369)
●If the operation conditions (→P.369)
are no longer met while the lane cen- tering function is op erating, the steer-
ing wheel may vibrate and the buzzer
may sound to indicate that the func - tion has been temporarily canceled.
However, if the “Aler t” customization
setting is set to “Steering wheel vibra - tion”, the system will notify the driver
by vibrating the steering wheel instead
of sounding the buzzer.
■Steering assist function/lane cen - tering function
●Depending on the vehicle speed, lane departure situation, road conditions,
etc., the driver may not feel the func -
tion is operating or the function may not operate at all.
●The steering control of the function is overridden by the dr iver’s steering
wheel operation.
●Do not attempt to test the operation of
the steering assist function.
■Lane departure alert function
●The warning buzzer may be difficult to
hear due to external noise, audio play -
back, etc. Also, it may be difficult to feel steering wheel vibrations due to
the road conditions, etc.
●If the edge of the course* is not clear
or straight, the lane departure alert
function may not operate.
●Vehicles with BSM: It may not be pos-
sible for the syste m to determine if there is a danger of a collision with a
vehicle in an adjacent lane.
●Do not attempt to test the operation of
the lane departure alert function.*: Boundary between a sphalt and the
side of the road, such as grass, soil,
or a curb
■Hands off steering wheel warning
In the following situations, a warning message urging the driver to hold the
steering wheel and the symbol shown in
the illustration are displayed on the multi-information display to warn the

445
5
5-6. Driving tips
Driving
5-6.Driving tips
 Use fluids that are appropriate to
the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Power control unit coolant
• Washer fluid
 Have a service technician
inspect the condition of the 12-
volt battery.
 Have the vehicle fitted with four
snow tires or purchase a set of
tire chains for the front tires.
Ensure that all tires are the same size
and brand, and that chains match the
size of the tires.*
*: Tire chains cannot be mounted on
vehicles with 235/55R19 tires.
Winter driving tips
Carry out the necessary prepa -
rations and inspections before
driving the vehicle in winter.
Always drive the vehicle in a
manner appropriate to the pre -
vailing weather conditions.
Pre-winter preparations
WARNING
■Driving with snow tires
Observe the following precautions to reduce the risk of accidents.
Failure to do so may result in a loss of
vehicle control and cause death or serious injury.
●Use tires of the specified size.
●Maintain the recommended level of air pressure.
●Do not drive at speeds in excess of the speed limit or the speed limit
specified for the snow tires being
used.
●Use snow tires on all, not just some
wheels.
■Driving with tire chains (except
235/55R19 tires)
Observe the following precautions to
reduce the risk of accidents.
Failure to do so may result in the vehi - cle being unable to be driven safely,
and may cause death or serious
injury.
●Do not drive in excess of the speed
limit specified for the tire chains being used, or 50 km/h (30 mph),
whichever is lower.
●Avoid driving on bumpy road sur -
faces or over potholes.
●Avoid sudden acceleration, abrupt
steering, sudden br aking and shift-
ing operations that cause sudden engine braking.
●Slow down sufficiently before enter - ing a curve to ensure that vehicle
control is maintained.
●Do not use LTA (Lane Tracing
Assist) system (if equipped).
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from any authorized
Toyota retailer or Toyota authorized
repairer, or any reliable repairer or legitimate tire retailers.
This is because the removal and
attachment of snow tires affects the operation of the tire pressure warning
valves and transmitters.

4967-3. Do-it-yourself maintenance
7-3.Do-it-yourself maintenance
Do-it-yourself service
precautions
If you perform maintenance by
yourself, be sure to follow the
correct procedure as given in
these sections.
Maintenance
ItemsParts and tools
12-volt battery
condition
( →P.506)
•Grease
• Conventional
wrench (for terminal
clamp bolts)
Engine/power
control unit
coolant level
( →P.503)
• “Toyota Super Long
Life Coolant” or a
similar high quality
ethylene glycol-
based non-silicate,
non-amine, non-
nitrite and non-
borate coolant with
long-life hybrid
organic acid technol -
ogy
“Toyota Super Long
Life Coolant” is pre -
mixed with 50%
coolant and 50%
deionized water.
• Funnel (used only
for adding coolant)
Engine oil level
( →P.501)
• “Toyota Genuine
Motor Oil” or equiva -
lent
• Rag or paper towel
• Funnel (used only
for adding engine
oil)
Fuses
( →P.545)
• Fuse with same
amperage rating as
original
DC/DC Con -
verter air
intake vent
( →P.536)
• Vacuum cleaner,
etc,
• Phillips screwdriver
Light bulbs
( →P.548)
• Bulb with same
number and watt -
age rating as origi -
nal
• Phillips-head screw -
driver
• Flathead screw -
driver
• Wrench
Radiator and
condenser
( →P.504)
⎯
Tire inflation
pressure
( →P.529)
• Tire pressure gauge
• Compressed air
source
Washer fluid
( →P.505)
• Water or washer
fluid containing anti -
freeze (for winter
use)
• Funnel (used only
for adding water or
washer fluid)
WARNING
The engine compartment contains
many mechanisms and fluids that may move suddenly, become hot, or
become electrically energized. To
avoid death or serious injury, observe the following precautions.
ItemsParts and tools

497
7
7-3. Do-it-yours elf maintenance
Maintenance and care
WARNING
■When working on the engine
compartment
●Make sure that “IGNITION ON” on the multi-information display and
the “READY” indicat or are both off.
●Keep hands, clothing and tools
away from the moving fan.
●Be careful not to touch the engine, power control unit, radiator, exhaust
manifold, etc. right after driving as
they may be hot. Oil and other flu - ids may also be hot.
●Do not leave anyt hing that may burn easily, such as paper and
rags, in the engi ne compartment.
●Do not smoke, cause sparks or
expose an open flame to fuel or the
12-volt battery. Fu el and 12-volt battery fumes are flammable.
●Take care because brake fluid can harm your hands or eyes and dam -
age painted surfac es. If fluid gets
on your hands or in your eyes, flush the affected area with clean water
immediately. If you still experience
discomfort, consult a doctor.
■When working near the electric
cooling fan or radiator grille
Be sure the power switch is off.
With the power swi tch in ON, the
electric cooling fan may automatically start to run if the air conditioning is on
and/or the coolant temperature is
high. ( →P.504)
■Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc.,
from getting in your eyes.
NOTICE
■If you remove th e air cleaner fil-
ter
Driving with the air cleaner filter removed may cause excessive
engine wear due to dirt in the air.
■If the fluid level is low or high
It is normal for the br ake fluid level to
go down slightly as the brake pads
wear or when the fluid level in the accumulator is high.
If the reservoir needs frequent refill -
ing, it may indicate a serious problem.

501
7
7-3. Do-it-yours elf maintenance
Maintenance and care
Fuse boxes (→P.545)
Engine oil filler cap ( →P.502)
Engine oil level dipstick ( →P.501)
Radiator ( →P.504)
Electric cooling fan
Condenser ( →P.504)
Power control unit coolant reservoir ( →P.504)
Washer fluid tank ( →P.505)
Engine coolant reservoir ( →P.503)
■12-volt battery
→ P.506
With the engine at operating tem-
perature and turned off, check the
Engine compartment
Components
A
B
C
D
E
F
G
H
I
Checking and adding the
engine oil