Page 352 of 590

350
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
clean the filter. ( P.348)
●After cleaning the air intake vent, start the hybrid system and check that the
warning message is no longer dis- played.After the hybrid system is started, it
may be necessary to drive the vehicle up to approximately 20 minutes before the warning message disappears. If
the warning message does not disap- pear after driving for appropriately 20 minutes, have the vehicle inspected
by any authorized Toyota retailer or Toyota authorized repairer, or any reli-able repairer.
WARNING
■When cleaning the air intake vent
●Do not use water or other liquids to clean the air intake vent. If water is
applied to the hybrid battery (trac- tion battery) or other components, a malfunction or fire may occur.
●Before cleaning the air intake vent, make sure to turn the power switch
off to stop the hybrid system.
■When removing the air intake
vent cover
Do not touch the service plug located near the air intake vent. ( P.80)
NOTICE
■When cleaning the air intake vent
When cleaning the air intake vent,
make sure to only use a vacuum to suck out dust and clogs. If a com-pressed air blow gun, etc. is used to
blow out dust and clogs, the dust or clogs may be pushed into the air intake vent, which may affect the per-
formance of the hybrid battery (trac- tion battery) and cause a malfunction.
■To prevent damage to the vehicle
●Do not allow water or foreign matter to enter the air intake vent when the
cover is removed.
●Carefully handle the removed filter
so that it will not be damaged. If the filter is damaged, have it replaced with a new filter by any
authorized Toyota retailer or Toyota authorized repairer, or any reliable repairer.
●Make sure to reinstall the filter and cover to their original positions after
cleaning.
Page 353 of 590

351
6
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
Maintenance and care
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart entry & start system (if equipped) and wireless remote control
will not function properly.
●The operational range will be reduced.
Flathead screwdriver
Small flathead screwdriver
Lithium battery CR2032 (vehi-
cles without a smart entry & start
system), or CR2450 (vehicles
with a smart entry & start sys-
tem)
■Use a CR2032 (vehicles without a
smart entry & start system) or CR2450 (vehicles with a smart entry & start system) lithium bat-
tery
●Batteries can be purchased at any
authorized Toyota retailer or Toyota authorized repairer, or any reliable
NOTICE
●Do not install anything to the air intake vent other than the exclusive
filter for this vehicle or use the vehi- cle without the filter installed.
■If “Maintenance Required for Traction Battery Cooling Parts See Owner’s Manual” is dis-
played on the multi-information display
If the vehicle is continuously driven
with the warning message (indicating that charging/discharging of the hybrid battery [traction battery] may
become limited) displayed, the hybrid battery (traction battery) may mal-function. If the warning message is
displayed, clean the air intake vent immediately.
Wireless remote con-
trol/electronic key bat-
ter y
Replace the battery with a new
one if it is depleted.
As the key may be damaged if
the following procedure is not
performed properly, it is rec-
ommended that key battery
replacement be performed by
any authorized Toyota retailer
or Toyota authorized repairer,
or any reliable repairer.
Items to prepare
Page 354 of 590

352
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
repairer, local electrical appliance
shops or camera stores.
●Replace only with the same or equiva-
lent type recommended by the manu- facturer.
●Dispose of used batteries according to local laws.
Vehicles without a smart entry &
start system
1 Remove the key cover.
To prevent damage to the key, cover the tip of the flathead screwdriver with a
rag.
2 Remove the battery cover.
Use a screwdriver of an appropriate size. Forcedly prying may cause the
cover damaged.
If the battery cover is difficult to remove, lift the edge to remove it.
3 Remove the depleted battery
using a small flathead screw-
driver.
When removing the battery, use a screwdriver of an appropriate size.
Insert a new battery with the “+” termi-
nal facing up.
4 Install the battery cover with the
tab facing up.
Push the entire edge of the battery
cover into the key.
5 Install the key cover.
Align the key cover with the key and then press it straight into the key.
Make sure that the key cover is securely installed without any gaps
Replacing the battery
Page 355 of 590

353
6
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
Maintenance and care
between it and the key.
6Operate the or switch
and check that the doors can be
locked/unlocked.
Vehicles with a smart entry &
start system
1 Release the lock and remove
the mechanical key.
2 Remove the key cover.
Use a screwdriver of an appropriate size. Forcedly prying may cause the cover damaged.
To prevent damage to the key, cover the tip of the flathead screwdriver with a
rag.
3 Remove the depleted battery
using a small flathead screw-
driver.
When removing the cover, the elec-
tronic key module may stick to the cover and the battery may not be visi-ble. In this case, remove the electronic
key module in order to remove the bat- tery.
When removing the battery, use a
screwdriver of an appropriate size.
Insert a new battery with the “+” termi- nal facing up.
4 When installing the key cover
and mechanical key, install by
conducting step 2 and step 1
with the directions reversed.
5 Operate the or switch
and check that the doors can be
locked/unlocked.
Page 356 of 590

354
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
1Turn the power switch off.
2 Open the fuse box cover.
Engine compartment: type A
fuse box
Push the tabs in and lift the lid off.
Engine compartment: type B
fuse box
Push the tabs in and lift the lid off.
WARNING
■Removed battery and other parts
These parts are small and if swal-
lowed by a child, they can cause choking. Keep away from children. Failure to do so could result in death
or serious injury.
■Lithium battery precautions
CAUTION RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUC-
TIONS
NOTICE
■When replacing the battery
Use a flathead screwdriver of appro- priate size. Applying excessive force may deform or damage the cover.
■For normal operation after replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.Moisture may cause the battery to
rust.
●Do not touch or move any other
component inside the remote con- trol.
●Do not bend either of the battery terminals.
■When removing the battery cover (vehicles without a smart entry & start system)
Do not forcibly remove the battery cover, otherwise it may be damaged. If the battery cover is difficult to
remove, lift the edge to remove it.
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
Page 357 of 590
355
6
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
Maintenance and care
Under the driver’s side instru-
ment panel (left-hand drive vehi-
cles)
Remove the lid.
Make sure to push the claw when
removing/installing the lid.
Under the passenger’s side
instrument panel (right-hand
drive vehicles)
Remove the cover, connector (if
equipped) and then remove the lid.
Make sure to push the claw when
removing/installing the lid.
Under the right-hand rear seat
Remove the 12-volt battery cover.
( P.330)
3Remove the fuse with the pull-
out tool.
Only type A fuse can be
removed using the pullout tool.
4 Check if the fuse is blown.
Replace the blown fuse with a new fuse of an appropriate amperage rating. The
amperage rating can be found on the fuse box lid.
Typ e A
Page 365 of 590
363
6
HV Owner's Manual_Europe_M52N30_en
6-3. Do-it-yourself maintenance
Maintenance and care
■License plate light
1 Remove the lens.
1 Insert a small flathead screw-
driver, etc., into either the right
or left hole of the lens.
2 Tilt the screwdriver in the direc-
tion of the arrow shown in the
illustration so as to release the
fitting portion, and then remove
the lens.
To prevent damage to the vehicle, wrap
the tip of the screwdriver with tape.
Lens
Fitting portion
2 Remove the light bulb.
3 Install a new light bulb.
4 Install the lens.
1 Fit the lens into either the right
or left fitting portion.
Page 368 of 590

366
HV Owner's Manual_Europe_M52N30_en
7-1. Essential information
7-1.Esse ntial informa tion
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch once
again.
■Emergency flashers
●If the emergency flashers are used for a long time while the hybrid system is
not operating (while the “READY” indi- cator is not illuminated), the 12-volt battery may discharge.
●If any of the SRS airbags deploy (inflate) or in the event of a strong rear
impact, the emergency flashers will turn on automatically. The emergency flashers will turn off
automatically after operating for approximately 20 minutes. To manu-ally turn the emergency flashers off,
press the switch twice. (The emergency flashers may not turn on automatically depending on the
force of the impact and conditions of the collision.)
1 Steadily step on the brake pedal
with both feet and firmly depress
it.
Do not pump the brake pedal repeat- edly as this will increase the effort required to slow the vehicle.
2 Shift the shift lever to N.
If the shift lever is shifted to N
3 After slowing down, stop the
vehicle in a safe place by the
road.
4 Stop the hybrid system.
If the shift lever cannot be shifted
to N
3 Keep depressing the brake
pedal with both feet to reduce
vehicle speed as much as possi-
ble.
4 Perform the following proce-
dure to stop the hybrid system:
Vehicles without a smart entry &
start system
Turn the power switch to ACC.
Emergency flashers
The emergency flashers are
used to warn other drivers
when the vehicle has to be
stopped on the road due to a
breakdown, etc.
Operating instructions
If your vehicle has to be
stopped in an emer-
gency
Only in an emergency, such as
if it becomes impossible to
stop the vehicle in the normal
way, stop the vehicle using the
following procedure:
Stopping the vehicle