2023 TOYOTA VENZA HYBRID battery replacement

4TABLE OF CONTENTS
5-3. Using the storage featuresList of storage features . 343
Luggage compartment fea- tures ............................ 346
5-4. Using the other interior fea- tures
Panoramic fixed moon roof with one-touch frosted glass
control ......................... 350
Other interior features ... 353
Garage door opener...... 364
6-1. Maintenance and care Cleaning and protecting the vehicle exterior ............ 372
Cleaning and protecting the vehicle interior ............. 376
6-2. Maintenance Maintenance requirements.................................... 379
General maintenance.... 381
Emission inspection and maintenance (I/M) pro-
grams .......................... 383
6-3. Do-it-yourself maintenance Do-it-yourself service pre-cautions ....................... 385
Hood ............................. 387
Positioning a floor jack .. 388
Engine compartment ..... 390
12-volt battery ............... 397
Tires .............................. 400
Tire inflation pressure ... 412
Wheels ......... .................414
Air conditioning filter ...... 415Cleaning the hybrid battery
(traction battery) air intake
vent.............................. 417
Wiper insert replacement .................................... 421
Electronic key battery .... 424
Checking and replacing fuses ............................ 426
Headlight aim ................ 429
Exterior lights................. 430
7-1. Essential information Emergency flashers....... 432
If your vehicle has to be stopped in an emergency.................................... 433
If the vehicle is submerged or water on the road is rising.................................... 434
7-2. Steps to take in an emer- gency
If your vehicle needs to be towed ........................... 436
If you think something is wrong........................... 439
If a warning light turns on or a warning buzzer sounds
.................................... 441
If a warning message is dis- played .......................... 451
If you have a flat tire ...... 456
If the hybrid system will not start ............................. 463
If you lose your keys...... 46
5
If the fuel fille r door cannot
be opened .

..................465
6Maintenance and care
7When trouble arises

1343-1. Key information
3-1.Key information
The following keys are provided
with the vehicle.Electronic keys
• Operating the smart key system ( P.154)
• Operating the wireless remote control function ( P.136)
Mechanical keys
Key number plate
■When riding in an aircraft
When bringing an electronic key
onto an aircraft, make sure you do
not press any buttons on the elec-
tronic key while inside the aircraft
cabin. If you are carrying an elec-
tronic key in your bag etc., ensure
that the buttons are not likely to be
pressed accidentally. Pressing a
button may cause the electronic key
to emit radio waves that could inter-
fere with the oper ation of the air-
craft.
■Electronic key battery depletion
●The standard battery life is 1 to 2
years.
●If the battery becomes low, an
alarm will sound in the cabin and a
message will be dis played on the
multi-information display when the hybrid system stops.
●To reduce key battery depletion
when the electronic key is to not
be used for long periods of time,
set the electronic key to the bat-
tery-saving mode. (
P.156)
●As the electronic key always
receives radio waves, the battery
will become depleted even if the
electronic key is not used. The fol-
lowing symptoms indicate that the
electronic key battery may be
depleted. Replace the battery
when necessary.
• The smart key system or the wire- less remote contro l does not oper-
ate.
• The detection area becomes smaller.
• The LED indicator on the key sur- face does not turn on.
You can replace the battery by your-
self ( P.424). However, as there is
a danger that the electronic key may
be damaged, it is recommended
that replacement is carried out by
your Toyota dealer.
●To avoid serious deterioration, do
not leave the electronic key within
3 ft. (1 m) of the following electri-
cal appliances that produce a
magnetic field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Table lamps
• Induction cookers
●If the electronic key is near the
vehicle for longer than necessary,
even if the smart key system is not
operated, the key battery may
become depleted faster than nor-
mal. When not operating the
smart key system, it is recom-
mended to not stay with the elec-
tronic key near the vehicle longer
than necessary.
Keys
Key types
A
B
C

3134-6. Driving tips
4
Driving
Use fluids that are appropriate
to the prevailing outside tem-
peratures.
• 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.
Winter driving tips
Carry out the necessary
preparations and inspec-
tions before driving the
vehicle in winter. Always
drive the vehicle in a man-
ner appropriate to the pre-
vailing weather conditions.
Preparation for winter
WARNING
■Driving with snow tires
Observe the following precautions
to reduce the risk of accidents.
Failure to do so m ay 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 in excess of 75
mph (120 km/h), regardless of
the type of snow tires being
used.
●Use snow tires on all, not just
some wheels.
■Driving with tire chains
Observe the following precautions
to reduce the risk of accidents.
Failure to do so may result in the
vehicle being unable to be driven
safely, and may cause death or
serious injury.
●Do not drive in excess of the
speed limit specifi ed for the tire
chains being used, or 30 mph
(50 km/h), whichever is lower.
●Avoid driving on bumpy road
surfaces or over potholes.
●Avoid sudden acceleration,
abrupt steering, sudden brak-
ing and shifting operations that
cause sudden engine braking.
●Slow down sufficiently before
entering a curve to ensure that
vehicle control is maintained.
●Do not use LTA (Lane Tracing
Assist) system.
NOTICE
■Repairing or replacing snow
tires
Request repairs or replacement of
snow tires from your Toyota
dealer 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.

3245-1. Using the air conditioning system and defogger
1Press the “AUTO” switch.
2 Adjust the temperature set-
ting.
3 To stop the operation, press
the “OFF” switch.
If the fan speed setting or air flow modes are operated, the
automatic mode indicator goes
off. However, automatic mode
for functions other than that
operated is maintained.
■Using automatic mode
Fan speed is adjusted automati-
cally according to the temperature
setting and the ambient conditions.
Therefore, the fan may stop for a
while until warm or cool air is ready
to flow immediately after the auto-
matic mode switch is pressed.
To turn on the “SYNC” mode,
press the “SYNC” switch.
The driver’s side temperature con-
trol dial can be used to adjust the
temperature for the driver’s and
passenger’s side. To enter individ-
ual mode, operate the passenger’s
side temperature control dial or
press the “SYNC” switch again.
When the “SYNC” mode is on, the
indicator illuminates on the “SYNC”
switch.
This function automatically con-
trols the air conditioning airflow
so that priority is given to the
front seats. When the front pas-
senger seat is not occupied, air-
flow may switch to only the
WARNING
■To prevent the windshield
from fogging up
Do not use the windshield defog-
ger switch during cool air opera-
tion in extremely humid weather.
The difference between the tem-
perature of the outside air and
that of the windshield can cause
the outer surface of the wind-
shield to fog up, blocking your
vision.
■When the outside rear view
mirror defoggers are operat-
ing
Do not touch the rear view mirror
surfaces when the outside rear
view mirror defoggers are on.
NOTICE
■To prevent 12-volt battery dis-
charge
Do not leave the air conditioning
system on longer than necessary
when the hybrid system is off.
■When repairing/replacing
parts of the air conditioning
system
Have repair/replacement per-
formed by your Toyota dealer.
When a part of th e air condition-
ing system, such as the evapora-
tor, is to be replaced, it must be
replaced with a new one.
Using automatic mode
Adjusting the temperature
for driver and passenger
seats simultaneously
(“SYNC” mode)
Front seat concentrated
airflow mode (S-FLOW)

371
6
6
Maintenance and care
Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior .......... 372
Cleaning and protecting the vehicle interior ........... 376
6-2. Maintenance Maintenance requirements.................................. 379
General maintenance.. 381
Emission inspection and maintenance (I/M) pro-
grams ........................ 383
6-3. Do-it-yourself mainte- nance
Do-it-yourself service pre- cautions ..................... 385
Hood ........................... 387
Positioning a floor jack 388
Engine compartment ... 390
12-volt battery ............. 397
Tires ............................ 400
Tire inflation pressure . 412
Wheels ......... ...............414
Air conditioning filter .... 415
Cleaning the hybrid battery (traction battery) air intake
vent ........................... 417
Wiper insert replacement .................................. 421
Electronic key battery.. 424
Checking and replacing fuses.......................... 426Headlight aim ..............
429
Exterior lights .............. 430

3796-2. 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 12-volt bat-
tery
●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.
●12-volt battery posts, terminals
and related accessories con-
tain lead and lead compounds
which are known to cause brain
damage. Wash your hands after
handling. ( P.397)
General maintenance
Scheduled maintenance

3996-3. Do-it-yourself maintenance
6
Maintenance and care
Make sure that the 12-volt bat-
tery terminals are not corroded
and that there are no loose con-
nections, cracks, or loose
clamps.Terminals
Hold-down clamp
Check the battery condition by
indicator color.
Blue: Good condition
Red: Charging is necessary.
Have the vehicle inspected
by your Toyota dealer.
Clear: Replacement is nec-
essary. Have the vehicle inspected
by your Toyota dealer.
Exterior
Checking the battery con-
dition (if equipped)
A
B
A
B
C

4848-1. Specifications
If replacement is necessary, contact your Toyota dealer.
*: The fluid capacity is the quantity of reference.
If replacement is necessary, contact y our Toyota dealer.
Ignition system (spark plug)
MakeDENSO FC16HR-Q8
Gap0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark pl ug gap.
Electrical system (12-volt Battery)
Open voltage at 68°F (20°C):
12.0 V or higher
(Turn the power switch to OFF and turn on
the high beam headlights for 30 seconds.)
If the voltage is lower than the standard
value, charge the battery.
Charging ratesQuick charge15 A max.
Slow charge5 A max.
Hybrid transmission
Fluid capacity*4.1 qt. (3.9 L, 3.4 Imp.qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Hybrid transmission fluid type
Using transmission fluid other than the above type may cause ab normal
noise or vibration, or ultimately damage the transmission of yo ur vehicle.
Rear differential (rear electric motor)
Fluid capacity*1.8 qt. (1.7 L, 1.5 Imp.qt.)
Fluid typeToyota Genuine ATF WS