2001 TOYOTA TUNDRA heating

'01 TUNDRA_U (L/O 0008)
1002001 TUNDRA (OM 34416U)
Four±wheel drive models
5VZ±FE engineÐFront control lever in ªH2º orªH4º
ª2º 110 km/h (68 mph) . . . . . . . . .
ªLº 60 km/h (37 mph)
. . . . . . . . . .
Front control lever in ªL4º
ª2º 40 km/h (25 mph)
. . . . . . . . . .
ªLº 20 km/h (12 mph)
. . . . . . . . . .
2UZ±FE engineÐ ª2WDº or ª4HIº mode is selected ª2º 120 km/h (75 mph)
. . . . . . . . .
ªLº 65 km/h (40 mph)
. . . . . . . . . .
ª4LOº mode is selected ª2º 45 km/h (28 mph)
. . . . . . . . . .
ªLº 25 km/h (16 mph)
. . . . . . . . . .
Do not continue hill climbing or
hard towing for a long time in theª2º or ªLº position. This may causesevere automatic transmission dam-
age from overheating. To preventsuch damage, ªDº position shouldbe used in hill climbing or hard
towing.
(f) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with your foot, shift the selector lever to the
ªRº position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(g) Parking
1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down, fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down, shift the selector lever to the ªPº posi-
tion.
CAUTION
Never attempt to move the selector
lever into ªPº position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(h) Good driving practice

If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope, the
overdrive should be turned off. Be sure
to turn the switch on immediately after-
ward.

When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Do not hold the vehicle on an up-grade with the accelerator pedal. Itcan cause the transmission to over-heat. Always use the brake pedal or
parking brake.
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'01 TUNDRA_U (L/O 0008)
1492001 TUNDRA (OM 34416U)
Fan speed selector
Turn the knob to adjust the fan speedÐto
the right to increase, to the left to de-
crease.
Temperature selector
Turn the knob to adjust the temperatureÐ
to the right to warm, to the left to cool.
Air flow selector
Turn the knob to select the vents used for
air flow.
1. PanelÐ Air flows mainly from the
instrument panel vents.
2. Bi±levelÐ Air flows from both the floor
vents and the instrument panel vents.
3. FloorÐ Air flows mainly from the floor
vents.
It is recommended to close the lower
vent. For details about it, see ªInstru-
ment panel ventsº in this section. 4. Floor/WindshieldÐ
Air flows mainly
from the floor vents and windshield
vents.
Turning the air flow selector to the
floor/windshield position turns on the
defogging function with the purpose of
clearing the front view.
It is recommended to close the lower
vent. For details about it, see ªInstru-
ment panel ventsº in this section.
This position allows the air intake to
select FRESH automatically. This is to
clean up the front view more quickly.
If you want to return the setting to
RECIRCULATE mode, press the air in-
take selector button once again.
Vehicles with ªA/Cº buttonÐ
Press the ªA/Cº button for dehumidified
heating or cooling. This setting clears
the front view more quickly.
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'01 TUNDRA_U (L/O 0008)
1502001 TUNDRA (OM 34416U)
5. WindshieldÐ Air flows mainly from the
windshield vents.
Turning the air flow selector to the
windshield position turns on the defog-
ging function with the purpose of clear-
ing the front view.
This position allows the air intake to
select FRESH automatically. This is to
clean up the front view more quickly.
If you want to return the setting to
RECIRCULATE mode, press the air in-
take selector button once again.
Vehicles with ªA/Cº buttonÐ
Press the ªA/Cº button for dehumidified
heating or cooling. This setting clears
the front view more quickly.
It is recommended to close the lower
vent. For details about it, see ªInstru-
ment panel ventsº in this section.
For details about air flow selector settings,
see ªAir flow selector settingsº described
below. Air intake selector
The air intake selector button is used to
switch the air intake
FRESH mode that
draws outside air into the system and RE-
CIRCULATED mode that recirculates the
air inside vehicle.
To turn the air source to RECIRCULATED
mode, press the button. The indicator will
come on. To turn the air source to FRESH
mode, press the button again. The indica-
tor will go off.
To prevent fogging up of the windshield,
the air intake mode may change automati-
cally to FRESH depending on the condi-
tion of the air conditioning system.
ªA/Cº button
To turn on the air conditioning, press the
ªA/Cº button. The ªA/Cº button indicator
will come on. To turn the air conditioning
off, press the button again.
If the ªA/Cº button indicator flashes, there
is a problem in the air conditioning system
and the air conditioning automatically
shuts off. If this happens, take your ve-
hicle to a Toyota dealer for service.
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'01 TUNDRA_U (L/O 0008)
1522001 TUNDRA (OM 34416U)

If following another vehicle on a dusty
road, or driving in windy and dusty
conditions, it is recommended that the
air intake selector be temporarily set to
RECIRCULATE, which will close off the
outside passage and prevent outside
air and dust from entering the vehicle
interior.
Heating
For best results, set controls to:
Fan speedÐ Any setting except ªOFFº
TemperatureÐ To w a r d s WARM
(red zone)
Air intakeÐFRESH (outside air)
Air flowÐFLOOR
Lower ventÐCLOSED
Air conditioningÐOFF

For quick heating, select recirculated
air for a few minutes. To keep the
windows from fogging, select fresh af-
ter the vehicle interior has been
warmed.

Press the ªA/Cº button on for dehumidi-
fied heating.

Choose floor/windshield air flow to heat
the vehicle interior while defrosting or
defogging the windshield. Air conditioning
For best results, set controls to:
Fan speedÐ Any setting except ªOFFº
TemperatureÐ To w a r d s COLD
(blue zone)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐON

For quick cooling, move the air intake
selector to recirculate for a few min-
utes.
Ventilation
For best results, set controls to:
Fan speedÐ Any setting except ªOFFº
TemperatureÐ To w a r d s COLD
(blue zone)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐOFF
Defogging
The inside of the windshield
For best results, set controls to:
Fan speedÐ Any setting except ªOFFº
TemperatureÐ To w a r d s WARM (red
zone) to heat; COLD
(blue zone) to cool
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
Lower ventÐCLOSED
Turning the air flow selector to the wind-
shield or floor/windshield position turns on
the defogging function with the purpose of
clearing the front view.
When turning the air flow selector to wind-
shield or floor/windshield position, the air
intake selects FRESH automatically. This
is to clean up the front view more quickly.
If you want to return the setting to RE-
CIRCULATE mode, press the air intake
selector button once again.
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'01 TUNDRA_U (L/O 0008)
1532001 TUNDRA (OM 34416U)
Vehicles with ªA/Cº buttonÐ
Press the ªA/Cº button for dehumidified
heating or cooling. This setting clears the
front view more quickly.

On humid days, do not blow cold air
on the windshieldÐthe difference be-
tween the outside and inside tempera-
tures could make the fogging worse.
Defrosting
The outside of the windshield
For best results, set controls to:
Fan speedÐ Any setting except ªOFFº
TemperatureÐ To w a r d s WARM
(red zone)
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
Lower ventÐCLOSED
Turning the air flow selector to the wind-
shield or floor/windshield position turns on
the defrosting function with the purpose of
clearing the front view.
When turning the air flow selector to wind-
shield or floor/windshield position, the air
intake selects FRESH automatically. This
is to clean up the front view more quickly.
If you want to return the setting to RE-
CIRCULATE mode, press the air intake
selector button once again. Vehicles with ªA/Cº buttonÐ
Press the ªA/Cº button for dehumidified
heating or cooling. This setting clears the
front view more quickly.

To heat the vehicle interior while de-
frosting the windshield, choose floor/
windshield air flow.
Instrument panel vents
Side vents
Lower vent
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'01 TUNDRA_U (L/O 0008)
1752001 TUNDRA (OM 34416U)
NOTICE
A large amount of unburned gases
flowing into the three±way catalyticconverter may cause it to overheatand create a fire hazard. To prevent
this and other damage, observe thefollowing precautions:
Use only unleaded gasoline.
Do not drive with an extremely lowfuel level; running out of fuel could
cause the engine to misfire, creat-ing an excessive load on the three±way catalytic converter.
Do not allow the engine to run atidle speed for more than 20 minu-
tes.
Avoid racing the engine.
Do not push±start or pull±start yourvehicle.
Do not turn off the ignition while
the vehicle is moving.
Keep your engine in good runningorder. Malfunctions in the engineelectrical system, electronic ignitionsystem/distributor ignition system
or fuel systems could cause an ex-tremely high three±way catalyticconverter temperature.
If the engine becomes difficult tostart or stalls frequently, take yourvehicle in for a check±up as soon
as possible. Remember, your Toyotadealer knows your vehicle and itsthree±way catalytic converter sys-
tem best.
To ensure that the three±way cata-lytic converter and the entire emis-sion control system operate proper-ly, your vehicle must receive the
periodic inspections required by theToyota Maintenance Schedule. Forscheduled maintenance information,
refer to the ªScheduled MaintenanceGuideº or ªOwner 's Manual Supple-mentº.
Engine exhaust cautions
CAUTION

Avoid inhaling the engine exhaust.
It contains carbon monoxide, which
is a colorless and odorless gas. It
can cause unconsciousness or even
death.

Make sure the exhaust system has
no holes or loose connections. The
system should be checked from
time to time. If you hit something,
or notice a change in the sound of
the exhaust, have the system
checked immediately.

Do not run the engine in a garage
or enclosed area except for the
time needed to drive the vehicle in
or out. The exhaust gases cannot
escape, making this a particularly
dangerous situation.

Do not remain for a long time in a
parked vehicle with the engine run-
ning. If it is unavoidable, however,
do so only in an unconfined area
and adjust the heating or cooling
system to force outside air into the
vehicle.
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'01 TUNDRA_U (L/O 0008)
1882001 TUNDRA (OM 34416U)
CAUTION

Before driving off, make sure that
the parking brake is fully released
and the parking brake reminder
light is off.

Do not leave your vehicle unat-
tended while the engine is running.

Do not rest your foot on the brake
pedal while driving. It can cause
dangerous overheating, needless
wear, and poor fuel economy.

To drive down a long or steep hill,
reduce your speed and downshift.
Remember, if you ride the brakes
excessively, they may overheat and
not work properly.

Be careful when accelerating, up-
shifting, downshifting or braking on
a slippery surface. Sudden accelera-
tion or engine braking could cause
the vehicle to spin or skid.

Do not drive in excess of the speed
limit. Even if the legal speed limit
permits it, do not drive over 140
km/h (85 mph) unless your vehicle
has high±speed capability tires.
Driving over 140 km/h (85 mph) may
result in tire failure, loss of control
and possible injury. Be sure to con-
sult a tire dealer to determine
whether the tires on your vehicle
are high±speed capability tires or
not before driving at such speeds.

Do not continue normal driving
when the brakes are wet. If they are
wet, your vehicle will require a
longer stopping distance, and it
may pull to one side when the
brakes are applied. Also, the park-
ing brake will not hold the vehicle
securely.
Off±road driving precautions
When driving your vehicle off±road, please
observe the following precautions to en-
sure your driving enjoyment and to help
prevent the closure of areas to off±road
vehicles.
a. Drive your vehicle only in areas where off±road vehicles are permitted to trav-
el.
b. Respect private property. Get owner 's permission before entering private prop-
erty.
c. Do not enter areas that are closed. Honor gates, barriers and signs that re-
strict travel.
d. Stay on established roads. When condi- tions are wet, driving techniques should
be changed or travel delayed to pre-
vent damage to roads.
For owners in U.S. mainland, Hawaii and
Puerto Rico:
To obtain additional information pertaining
to driving your vehicle off±road, consult
the following organizations.

State and Local Parks and Recreation
Departments

State Motor Vehicle Bureau

Recreational Vehicle Clubs
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'01 TUNDRA_U (L/O 0008)
1902001 TUNDRA (OM 34416U)
Always perform a maintenance in-
spection after each day of off±roaddriving that has taken you throughrough terrain, sand, mud, or water.
For scheduled maintenance in-formation, refer to the ªScheduledMaintenance Guideº or ªOwner's
Manual Supplementº.
Winter driving tips
Make sure you have a proper freeze
protection of engine coolant.
Your coolant must contain ethylene±glycol
type coolant for a proper corrosion
protection of aluminum components. Use
ªTOYOTA Long Life Coolantº or equivalent.
See Section 7±2 for details about coolant
type selection.
NOTICE
Do not use alcohol type antifreeze orplain water alone.
When it is extremely cold, we recommend
to use 60% solution for your Toyota, to
provide protection down to about ±50 C
(±58 F). Do not use more than 70% solu-
tion for better coolant performance.
Check the condition of the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape
to provide enough power for winter start-
ing. Section 7±3 tells you how to visually
inspect the battery. Your Toyota dealer
and most service stations will be pleased
to check the level of charge. Make sure the engine oil viscosity is
suitable for the cold weather.
See Section 7±2 for recommended viscos-
ity. Leaving a heavy summer oil in your
vehicle during winter months may cause
harder starting. If you are not sure about
which oil to use, call your Toyota deal-
erÐhe will be pleased to help.
Keep the door locks from freezing.
Squirt lock de±icer or glycerine into the
locks to keep them from freezing. To open
a frozen lock, try heating the key before
inserting it.
Use a washer fluid containing an anti-
freeze solution.
This product is available at your Toyota
dealer and most auto parts stores. Follow
the manufacturer 's directions for how
much to mix with water.
NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-age your vehicle's paint.
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