check engine TOYOTA RAV4 2023 Service Manual

3164-5. Using the driving support systems
When the switch is pressed again,
the snow mode indicator turns off.
■When changing to snow mode
The background of the multi-infor-
mation display changes.
■Canceling the snow mode
Snow mode is automatically can-
celed when the engine switch is
turned off or Mud & Sand or Rock &
Dirt mode is selec ted for Multi-ter-
rain Select.
*: If equipped
Press the “DAC” switch
The downhill assist control system
indicator will come on and the sys-
tem will operate. When the system
is in operation, the slip indicator
light will flash, and the stop
lights/high mounted stop lights will
be lit. A sound may also occur
during the operati on. This does not
indicate a malfunction.
Downhill assist con-
trol system*
The downhill assist control
system helps to prevent
excessive speed on steep
downhill slopes.
The system will operate
when the vehicle is traveling
under 15 mph (25 km/h) with
the accelerator and brake
pedals released.
WARNING
■When using downhill assist
control system
Do not rely overmuch on the
downhill assist control system.
This function does not extend the
vehicle’s performance limitations.
Always thoroughly check the road
conditions, and drive safely.
System operation

3174-5. Using the driving support systems
4
Driving
Press the “DAC” switch while
the system is in operation.
The downhill assist control system
indicator will flash as the system
gradually ceases operation, and will
turn off when the system is fully off.
Press the “DAC” switch while the
downhill assist control system indi-
cator is flashing to start the system
again.
■Operating tips
The system will op erate when the
shift lever is in a 1 range of S mode
or R.
■If the downhill assist control
system indicator flashes
●In the following situations, the indi-
cator flashes and the system will
not operate:
• The shift lever is in a position other 1 range of S mode or R.
• The accelerator or brake pedal is depressed.
• The vehicle speed exceeds
approximately 15 mph (25 km/h).
• The brake system overheats.
●In the following si tuation, the indi-
cator flashes to a lert the driver,
but the system will operate:
• The “DAC” switch is turned off
while the system is operating.
The system will gr adually ceases
operation. The indicator will flash during operation,
and then go off
when the system is fully off.
■When the downhill assist con-
trol system is operated continu-
ously
This may cause the brake actuator
to overheat. In thi s case, the down-
hill assist control system will stop
operating, a buzze r will sound and
the downhill assist control system
indicator will start flashing, and
“Traction Contro l Turned OFF” will
be shown on the mu lti-information
display. Refrain from using the sys-
tem until the downhill assist control
system indicator stays on and the
message goes off. (The vehicle can
be driven normally during this time.)
■Sounds and vibrations caused
by the downhill assist control
system
●A sound may be heard from the
engine compartment when the
engine is started or just after the
vehicle begins to move. This
sound does not indicate that a
malfunction has occurred in down-
hill assist control system.
●Either of the following conditions
may occur when the downhill
assist control system is operating.
None of these are indicators that a
malfunction has occurred.
• Vibrations may be felt through the
vehicle body and steering.
• A motor sound may be heard after the vehicle comes to a stop.
■System malfunction
In the following ca ses, have your
vehicle checked by your Toyota
dealer.
●The downhill assist control system
indicator does not come on when
the engine switch is turned to ON.
●The downhill assist control system
indicator does not come on when
the “DAC” switch is pressed.
●The slip indicator light comes on.
Turning off the system

3304-6. Driving tips
WARNING
●When driving off-road or in rug-
ged terrain, do not drive at
excessive speeds, jump, make
sharp turns, strike objects, etc.
This may cause loss of control
or vehicle rollover causing
death or serious injury. You are
also risking expensive damage
to your vehicle’s suspension
and chassis.
NOTICE
■To prevent the water damage
Take all necessary safety mea-
sures to ensure that water dam-
age to the engine or other
components does not occur.
●Water entering the engine air
intake will cause severe engine
damage.
●Water entering the automatic
transmission will cause deterio-
ration in shift quality, locking up
of your transmission accompa-
nied by vibration, and ultimately
damage.
●Water can wash the grease
from wheel bearings, causing
rusting and premature failure,
and may also enter the differen-
tials, transmission and transfer
case (AWD models), reducing
the gear oil’s lub ricating quali-
ties.
■When you drive through
water
If driving through water, such as
when crossing shallow streams,
first check the depth of the water
and the bottom of the riverbed for
firmness. Drive slowly and avoid
deep water.
■Inspection after off-road driv-
ing
●Sand and mud that has accu-
mulated around brake discs
may affect braking efficiency
and may damage brake system
components.
●Always perform a maintenance
inspection after each day of off-
road driving that has taken you
through rough terrain, sand,
mud, or water. For scheduled
maintenance information, refer
to the “Scheduled Maintenance
Guide” or “Owner’s Manual
Supplement”.

3645-4. Using the other interior features
Flashing repeatedly once
every second (Orange) 
Repeatedly flashes 3 times
continuously (Orange)
Suspected
causesHandling method
Vehicle to char-
ger communica-
tion failure.
If the engine is
running, stop
and then restart
the engine. If the
engine switch is
in ACC, start the
engine.
( P.204)
Suspected
causesHandling method
Foreign sub-
stance detection:
A metallic for-
eign substance
is in the charge
area, and so the
abnormal heat-
ing prevention
function oper-
ated
Remove the for-
eign substance
from the charge
area.
Portable device
misaligned:
The charging coil
in the portable
device moved
outside of the
charge area, and
so the abnormal
heating preven-
tion function
operated
Remove the por-
table device from
the charging
tray, check that
the operation
indicator light
switches back to
green, and then
once again place
the device near
the center of the
charging tray. If
there is a case or
cover attached
to the portable
device, remove
it.

3665-4. Using the other interior features
function.
■Operation sounds
A buzzing noise may be heard when
pressing the power supply switch to
turn the power supply on, when
turning the engine switch to ACC or
ON while the wireless charger
power supply is on, or when detect-
ing a portable device. However, this
is not a malfunction.
■If the smartphone OS has been
updated
If the smartphone OS has been
updated to a newer version, its
charging specifications may have
changed significantly. For details,
check the information on the manu-
facturer’s website.
■Trademark information
iPhone is a trademark of Apple Inc.,
registered in the U.S. and other
countries.
WARNING
■Caution while driving
When charging a portable device,
for safety reasons, the driver
should not operate the main part
of the portable device while driv-
ing.
■Caution while in motion
Do not charge lightweight devices
such as wireless headphones
while in motion. These devices
are very light and may be ejected
from the charging tray, which may
lead to unforeseen accidents.
■Caution regarding interfer-
ence with electronic devices
People with implantable cardiac
pacemakers, cardiac resynchroni-
zation therapy-pacemakers or
implantable cardio verters, as well
as any other electrical medical
device, should consult their physi-
cian about the usage of the wire-
less charger.
■To prevent malfunctions or
burns
Observe the following precau-
tions. Failure to do so may result
in a equipment failure and dam-
age, catch fire, bur ns due to over-
heat or electric shock.
●Do not insert any metallic
objects between the charge
area and the portable device
while charging
●Do not attach a n aluminum
sticker or other metallic object to
the charge area
●Do not attach a n aluminum
sticker or other metallic object to
the side of the portable device
(or to its case or cover) that
touches the charge area
●Do not use the ch arging tray as
a small storage space
●Do not subject to a strong force
or impact
●Do not disassemb le, modify or
remove
●Do not charge devices other
than specified portable devices
●Keep away from magnetic items
●Do not charge devices if the
charge area is covered in dust
●Do not cover with a cloth or sim-
ilar material
NOTICE
■Situations in which the func-
tion may not operate normally
Devices may not be charged nor-
mally in the following situations.
●The portable device is fully
charged

379
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 380
Cleaning and protecting the vehicle interior ........... 384
6-2. Maintenance Maintenance requirements.................................. 387
General maintenance.. 389
Emission inspection and maintenance (I/M) pro-
grams ........................ 391
6-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 393
Hood ........................... 395
Positioning a floor jack 396
Engine compartment ... 398
Tires ............................ 405
Tire inflation pressure . 416
Wheels ......... ...............418
Air conditioning filter .... 420
Wiper insert replacement .................................. 422
Wireless remote con- trol/electronic key battery.................................. 425
Checking and replacing fuses.......................... 428
Headlight aim .............. 431
Light bulbs................... 432

3876-2. Maintenance
6
Maintenance and care
6-2.Maintenance
■Repair and replacement
It is recommended that genuine
Toyota parts be used for repairs to
ensure performanc e of each sys-
tem. If non-Toyota p arts are used in
replacement or if a repair shop other
than a Toyota dealer performs
repairs, confirm the warranty cover-
age.
■Allow inspection and repairs to
be performed by a Toyota
dealer
●Toyota technicians are well-
trained specialists and are kept up
to date with the latest service
information. They are well
informed about the operations of
all systems on your vehicle.
●Keep a copy of the repair order. It
proves that the maintenance that
has been performed is under war-
ranty coverage. If any problem
should arise while your vehicle is
under warranty, your Toyota
dealer will promptly take care of it.
General maintenance should be
performed on a daily basis. This
can be done by yourself or by a
Toyota dealer.
Scheduled maintenance should
be performed at specified inter-
vals according to the mainte-
nance schedule.
For details about maintenance
items and schedules, refer to the
“Scheduled Maintenance Guide” or
“Owner’s Manual Supplement”.
Maintenance require-
ments
To ensure safe and econom-
ical driving, day-to-day care
and regular maintenance
are essential. It is the
owner’s responsibility to
perform regular checks.
Toyota recommends the fol-
lowing maintenance:
WARNING
■If your vehicle is not properly
maintained
Improper maintenance could
result in serious damage to the
vehicle and possible death or seri-
ous injury.
■Handling of the battery
●Engine exhaust, some of its
constituents, and a wide variety
of automobile components con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects and
other reproductive harm. Work
in a well ventilated area.
●Oils, fuels and fluids contained
in vehicles as well as waste pro-
duced by component wear con-
tain or emit chemicals known to
the State of California to cause
cancer and birth defects or
other reproductive harm. Avoid
exposure and wash any
affected area immediately.
●Battery posts, terminals and
related accessories contain lead
and lead compounds which are
known to cause brain damage.
Wash your hands after han-
dling. ( P.403)
General maintenance
Scheduled maintenance

3896-2. Maintenance
6
Maintenance and care
General maintenance
Listed below are the general
maintenance items that
should be performed at the
intervals specified in the
“Owner’s Warranty Informa-
tion Booklet” or “Owner’s
Manual Supplement/Sched-
uled Maintenance Guide”. It
is recommended that any
problem you notice should
be brought to the attention
of your Toyota dealer or
qualified service shop for
advice.
WARNING
■If the engine is running
Turn the engine off and ensure
that there is adequate ventilation
before performing maintenance
checks.
Engine compartment
ItemsCheck points
BatteryCheck the connec-
tions. ( P.403)
Brake fluid
Is the brake fluid at
the correct level?
( P.401)
Engine coolant
Is the engine cool-
ant at the correct
level? ( P.400)
Engine oil
Is the engine oil at
the correct level?
( P.398)
Exhaust sys-
temThere should not
be any fumes or
strange sounds.
Radiator/con-
denser
The radiator and
condenser should
be free from for-
eign objects.
( P.401)
Washer fluid
Is there sufficient
washer fluid?
( P.403)
Vehicle interior
ItemsCheck points
Accelerator
pedal
• The accelerator
pedal should
move smoothly
(without uneven
pedal effort or
catching).
Automatic
transmission
“Park” mecha-
nism
• When parked on a slope and the
shift position is in
P, is the vehicle
securely
stopped?
Brake pedal
• Does the brake pedal move
smoothly?
• Does the brake pedal have
appropriate
clearance from
the floor?
• Does the brake pedal have the
correct amount
of free play?
ItemsCheck points

3906-2. Maintenance
Brakes
• The vehicle should not pull to
one side when
the brakes are
applied.
• The brakes should work
effectively.
• The brake pedal should not feel
spongy.
• The brake pedal should not get
too close to the
floor when the
brakes are
applied.
Head
restraints
• Do the head restraints move
smoothly and
lock securely?
Indica-
tors/buzzers
• Do the indica-tors and buzzers
function prop-
erly?
Lights
• Do all the lights come on?
• Are the head- lights aimed cor-
rectly?
Parking brake
• Does the park-ing brake oper-
ate normally?
• When parked on a slope and the
parking brake is
on, is the vehicle
securely
stopped?
ItemsCheck points
Seat belts
• Do the seat belts operate
smoothly?
• The seat belts should not be
damaged.
Seats
• Do the seat con-trols operate
properly?
Steering wheel
• Does the steer-ing wheel rotate
smoothly?
• Does the steer- ing wheel have
the correct
amount of free
play?
• There should not be any strange
sounds coming
from the steer-
ing wheel.
Vehicle exterior
ItemsCheck points
Doors
• Do the doors operate
smoothly?
Engine hood
• Does the engine hood lock system
work properly?
Fluid leaks
• There should not be any signs of
fluid leakage
after the vehicle
has been parked.
ItemsCheck points

3986-3. Do-it-yourself maintenance
Fuse boxes (P.428)
Engine oil filler cap ( P.399)
Engine oil level dipstick ( P.398)
Battery ( P.403)
Brake fluid reservoir ( P.401)
Radiator ( P.401)
Electric cooling fan
Condenser ( P.401)
Washer fluid tank ( P.404)
Engine coolant reservoir ( P.400)
With the engine at operating
temperature and turned off, check the oil level on the dip-
stick.
Engine compartment
Components
A
B
C
D
E
F
G
H
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