2023 TOYOTA VENZA HYBRID radiator cap

3906-3. Do-it-yourself maintenance
Fuse boxes (P.426)
Engine oil filler cap ( P.391)
Engine oil level dipstick ( P.390)
Brake fluid reservoir ( P.394)
Radiator ( P.394)
Electric cooling fan
Condenser ( P.394)
Power control unit coolant reservoir ( P.393)
Washer fluid tank ( P.396)
Engine coolant reservoir ( P.393)
■12-volt battery
 P.397
With the engine at operating
temperature and turned off,
Engine compartment
Components
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B
C
D
E
F
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3946-3. Do-it-yourself maintenance
borate coolant with long-life hybrid
organic acid technology.
U.S.A.:
“Toyota Super Long Life Coolant” is
a mixture of 50% coolant and 50%
deionized water. (Minimum tem-
perature: -31°F [-35°C])
Canada:
“Toyota Super Long Life Coolant” is
a mixture of 55% coolant and 45%
deionized water. (Minimum tem-
perature: -44°F [-42°C])
For more details about coolant, con-
tact your Toyota dealer.
■If the coolant level drops within
a short time of replenishing
Visually check the radiators, hoses,
engine/power control unit coolant
reservoir caps, drain cock and water
pump.
If you cannot find a leak, have your
Toyota dealer, t est the cap and
check for leaks in the cooling sys-
tem.
Check the radiator and con-
denser, and clear away any for-
eign objects.
If either of the above parts is
extremely dirty or you are not
sure of their condition, have
your vehicle inspected by your
Toyota dealer.
■Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN”
WARNING
■When the hybrid system is
hot
Do not remove the engine/power
control unit coolant reservoir caps
or the radiator cap.
The cooling system may be under
pressure and may spray hot cool-
ant if the cap is removed, causing
serious injuries, such as burns.
NOTICE
■When adding coolant
Coolant is neither plain water nor
straight antifreeze. The correct
mixture of water and antifreeze
must be used to provide proper
lubrication, corrosion protection
and cooling. Be sure to read the
antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to
prevent it from damaging parts or
paint.
Checking the radiator and
condenser
WARNING
■When the hybrid system is
hot
Do not touch the radiator or con-
denser as they may be hot and
cause serious injuries, such as
burns.
■When the electric cooling fan
is operating
Do not touch the engine compart-
ment.
With the power switch in ON, the
electric cooling fa n may automati-
cally start to run if the air condi-
tioning is on and/or the coolant
temperature is high. Be sure the
power switch is OFF when work-
ing near the electric cooling fan or
radiator grille.
Checking and adding the
brake fluid

4767-2. Steps to take in an emergency
dropped and the vehicle may be
driven normally.
However, if the message appears
again frequently, contact your
Toyota dealer.
WARNING
■When inspecting under the
hood of your vehicle
Observe the following precau-
tions.
Failure to do so may result in seri-
ous injury such as burns.
●If steam is seen coming from
under the hood, do not open the
hood until the steam has sub-
sided. The engine compart-
ment may be very hot.
●After the hybrid system has
been turned off, check that the
“READY” indicator is off.
When the hybrid system is oper-
ating, the gasoline engine may
automatically start, or the cool-
ing 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,
resulting in serious injury.
●Do not loosen the coolant reser-
voir cap while the hybrid system
and radiator are hot.
High temperature steam or
coolant could spray out.
NOTICE
■When adding engine/power
control 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 damage to the hybrid
system.
■To prevent damage to the
cooling system
Observe the following precau-
tions:
●Avoid contaminating the coolant
with foreign matter (such as
sand or dust, etc.).
●Do not use any coolant additive.

Alphabetical Index541
Replacing light bulbs ............ 430
Parking Support Brake (PKSB) ............................................... 295Indicator ................................. 88
Parking Support Brake function (rear-crossing vehicles) ...... 302
Parking Support Brake function (static objects) .................... 300
Warning light ........................ 444
Warning message ................ 299
PCS (Pre-Collision System) Enabling/disabling the pre-colli-sion system ........................ 242
Function ............................... 239
Warning light ........................ 443
Warning message ........ 237, 454
Personal lights ....................... 341 Switch................................... 341
PKSB (Parking Support Brake) ............................................... 295Indicator ................................. 88
Parking Support Brake function (rear-crossing vehicles) ...... 302
Parking Support Brake function (static objects) .................... 300
Warning light ........................ 444
Power back door switch ........ 144
Power easy access system ... 162
Power outlets .......................... 353
Power steering (Electric Power Steering system) .................. 306Warning light ........................ 443
Power switch .......................... 201 Auto power off function ........ 205
Changing the power switch modes ................................ 204
Starting the hybrid system.... 201
Power windows Door lock linked window opera-tion ..................................... 184
Jam protection function ........ 183
Operation ............................. 183 Window lock switch ..............185
Pre-Collision System (PCS) Enabling/disabling the pre-colli-sion system ........................242
Function................................239
Warning light ........................443
Warning messag e ........237, 454
R
Radar cruise control
Dynamic radar cruise control with full-speed range ..........265
Radiator ...................................394
RCTA (Rear Cross Traffic Alert) RCTA Function .............277, 283
Warning message . ...............279
Rear Cross Traffic Alert (RCTA) ...............................................277
Rear passengers’ seat belt reminder light........................447
Rear seat Folding down the rear seatbacks...........................................161
Head restraints .....................166
Rear side marker lights Light switch...........................219
Replacing light bulbs ............430
Rear turn signal lights Replacing light bulbs ............430
Turn signal lever . ..................212
Rear view mirror Digital Rear-view Mirror ........170
Inside rear view mirror ..........169
Outside rear view mirrors .....181
Rear window defogger ...322, 330
Rear window wiper .................229
Refueling ............ .....................231
Capacity ...............................481
Fuel types .....................481, 488
If the fuel filler door cannot be opened ...............................465
Opening the fuel tank cap ....232