Page 515 of 688

5154-3. Do-it-yourself maintenance
4
Maintenance and care
VENZA_OM_OM73030U_(U) ■
Effects of incorrect tire inflation pressure
Driving with incorrect ti re inflation pressure ma y result in the following:●
Reduced fuel economy●
Reduced driving comfort and poor handling●
Reduced tire life due to wear●
Reduced safety●
Damage to the drive train
If a tire needs frequent re filling, have it checked by your Toyota dealer.■
Instructions for checking tire inflation pressure
When checking tire inflation pressure, observe the following: ●
Check only when the tires are cold.
If your vehicle has been parked for at least 3 hours or has not been
driven for more than 1 mile or 1.5 km, you will get an accurate cold
tire inflation pressure reading.●
Always use a tire pressure gauge.
It is difficult to judge if a tire is properly inflated based only on its
appearance.●
It is normal for the tire inflation pressure to be higher after driving as
heat is generated in the tire. Do not reduce tire inflation pressure after
driving.●
Never exceed the vehicle capacity weight.
Passengers and luggage weight should be placed so that the vehicle
is balanced.
Page 516 of 688
5164-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) CAUTION■
Proper inflation is critical to save tire performance
Keep your tires properly inflated.
If the tires are not properly inflated , the following cond itions may occur
which could lead to an accident resulting in death or serious injury: ●
Excessive wear●
Uneven wear●
Poor handling●
Possibility of blowouts resu lting from overheated tires●
Air leaking from between tire and wheel●
Wheel deformation and / or tire damage●
Greater possibility of tire damage wh ile driving (due to road hazards,
expansion joints, sharp edges in the road, etc.)
NOTICE■
When inspecting and adjusting tire inflation pressure
Be sure to reinstall the tire valve caps.
If a valve cap is not installed, dirt or moisture may get into the valve and
cause an air leak, resulting in decreased tire inflation pressure.
Page 518 of 688
5184-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) ■
When replacing wheels
The wheels of your Toyota are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advanced warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, the tire pressure warning valves and
transmitters must be installed. ( P. 507)
CAUTION■
When replacing wheels ●
Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may re sult in loss of handling control.●
Never use an inner tube in a leaking wheel which is designed for a
tubeless tire. Doing so may result in an accident, causing death or seri-
ous injury.
Page 519 of 688

5194-3. Do-it-yourself maintenance
4
Maintenance and care
VENZA_OM_OM73030U_(U) CAUTION■
When installing the wheel nuts
●
Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.■
Use of defective wheels prohibited
Do not use cracked or deformed wheels.
Doing so could cause the tire to leak air during driving, possibly causing
an accident.
NOTICE■
Replacing tire pressure warning valves and transmitters
●
Because tire repair or replacement may affect the tire pressure warn-
ing valves and transmitters, make su re to have tires serviced by your
Toyota dealer or other qualified service shop. In addition, make sure to
purchase your tire pressure warning valves and transmitters at your
Toyota dealer.
●
Ensure that only genuine Toyota wheels are used on your vehicle.
Tire pressure warning valves and transmitters may not work properly
with non-genuine wheels. ●
Be sure to install the wheel nuts with
the tapered ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the wheel to come off while driving,
which could lead to an accident
resulting in death or serious injury.Tapered
portion
Page 534 of 688
5344-3. Do-it-yourself maintenance
VENZA_OM_OM73030U_(U) 11 SEAT HTR 20 A
Seat heaters
12 S/ROOF 25 A
Electric moon roof
13 TA I L 10 A Side marker lights, tail lights,
license plate light
14 PA N E L 5 A Emergency flashers, audio sys-
tem, clock, instrument panel light
control, glove box light, console
box light, steering switches, out-
side rear view mirror defoggers,
seat heaters, vehicle stability
control system, shift lever light
15 ECU-IG NO.1 10 A Multiplex communication sys-
tem, electric moon roof, power
back door, seat heaters, Active
Torque Control 4WD, audio sys-
tem, Automatic High Beam
16 RR WASHER 15 A
Rear window washer
17 A/C NO.2 10 A
Air conditioning system
18 FR WASHER 20 A
Windshield washer
19 ECU-IG NO.2 7.5 A Vehicle stability control sys-
tem, automatic headlight level-
ing system, yaw rate & G
sensor, steering sensor, shift
lock system, tire pressure
warning system, automatic
transmission, electric power
steeringFuse Ampere Circuit
Page 567 of 688

5
When trouble arises
5675-2. Steps to take in an emergency
VENZA_OM_OM73030U_(U) Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off. Warning light Warning light/Details Correction procedure
Open door warning light
(warning buzzer)
* 1
A door is not fully closed. Check that all doors are
closed.
Driver’s seat belt
reminder light (warning
buzzer)
* 2
Warns the driver to fasten
his/her seat belt. Fasten the seat belt.
(On the center
display) Front passenger’s seat
belt reminder light (warn-
ing buzzer)
* 2
Warns the front passen-
ger to fasten his/her seat
belt. Fasten the seat belt.
Tire pressure warning
light
When the light comes on:
Low tire inflation pressure
such as
• Natural causes ( P. 573)
• Flat tire ( P. 579) Adjust the tire inflation
pressure to the specified
level.
The light will turn off after
a few minutes. In case
the light does not turn off
even if the tire inflation
pressure is adjusted,
have the system checked
by your Toyota dealer.
When the light comes on
after blinking for 1 minute:
Malfunction in the tire
pressure warning system.
( P. 575) Have the system checked
by your Toyota dealer.
Page 573 of 688

5
When trouble arises
5735-2. Steps to take in an emergency
VENZA_OM_OM73030U_(U) ■ SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag
sensors, side and curtain shield airbag sensors, curtain shield airbag sen-
sors, driver’s seat position sensor, driver’s seat belt buckle switch, front pas-
senger occupant classification system (ECU and sensors), “AIR BAG ON”
indicator light, “AIR BAG OFF” indicator light, front passenger’s seat belt
buckle switch, seat belt pretensioner assemblies, airbags, interconnecting
wiring and power sources. ( P. 121)
■
The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such
as natural air leaks or tire inflation pressure changes caused by temper-
ature. In this case, adjusting the ti re inflation pressu re will turn off the
warning light (after a few minutes).■
When a tire is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire is replaced with the spare tire.
Replace the spare tire with the repair ed tire and adjust the proper tire
inflation pressure. The ti re pressure warn ing light will turn off after a few
minutes.
Page 574 of 688

5745-2. Steps to take in an emergency
VENZA_OM_OM73030U_(U) ■
If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.) ●
If tires not equipped with tire pressure warning valves and transmit-
ters are used.●
If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.●
If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm 2
or bar) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.) ●
If electronic devices or facilities us ing similar radio wave frequencies
are nearby.●
If a radio set at similar frequencies is in use in the vehicle.●
If a window tint that affects the radio wave signals is installed.●
If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.●
If non-genuine Toyota wheels are used. (Even if you use Toyota
wheels, the tire pressu re warning system may not work properly with
some types of tires.)●
If tire chains are used.