engine overheat TOYOTA TUNDRA 2008 2.G Owners Manual

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
CAUTION
Occupants must use caution when op-
erating the seat heater because it
may make them feel too hot or cause
burns at low temperatures (erythema,
varicella). Use extra caution for;
Babies, small children, elderly per-
sons, sick persons or persons with
physical disabilities
Persons who have sensitive skin
Persons who are exhausted
Persons who have taken alcohol or
drugs which induce sleep (sleeping
drug, cold remedy, etc.)
To prevent the seat from overheating,
do not use the seat heater with a
blanket, cushion, or other insulating
objects which cover the seat.
NOTICE
 Do not put unevenly weighted ob-
jects on the seat and do not stick
sharp objects (needles, nails, etc.)
into the seat.
 When cleaning the seats, do not
use organic substances (paint thin-
ner, benzine, alcohol, gasoline,
etc.). They may damage the heater
and seat surface.
 To prevent the battery from being
discharged, turn the switch off
when the engine is not running.
Toyota strongly urges that the driver and
passengers in the vehicle be properly re-
strained at all times with the seat belts
provided. Failure to do so could increase
the chance of injury and/or the severity of
injury in accidents.
The seat belts provided for your vehicle
are designed for people of adult size,
large enough to properly wear them.
Child. Use a child restraint system ap-
propriate for the child until the child be-
comes large enough to properly wear the
vehicle’s seat belts. See “Child restraint”
on page 115 in this Section for details.
REGULAR CAB MODELS—
If a child is too large for a child restraint
system, the child s hould sit in the seat
and must be restrained using the vehicle’s
seat belt.
DOUBLE CAB AND CREW MAX
MODELS—
If a child is too large for a child restraint
system, the child s hould sit in the rear
seat and must be restrained using the
vehicle’s seat belt. According to accident
statistics, the child is safer when properly
restrained in the rear seat than in the
front seat.
Seat belts—
—Seat belt precautions

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The gauge indicates the engine coolant
temperature when the engine switch is
on. The engine operating temperature
will vary with changes in weather and
engine load.
If the needle moves into the red zone,
your engine is too hot. If your vehicle
overheats, stop your vehicle and allow the
engine to cool.
Your vehicle may overheat during severe
operating conditions, such as:
Driving up a long hill on a hot day.
Reducing speed or stopping after high
speed driving.
Idling for a long period with the air
conditioning on in stop−and− go traffic.
Towing a trailer.
NOTICE
Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.
 Do not continue driving with an
overheated engine. See “If your
vehicle overheats” in Section 4.
XS16005
Normal
driving
Idling
Ty p e A
XS16006
Normal
driving
Idling
Ty p e B
Oil pressure gauge

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
(a)
This message is to warn the driver that
the parking brake is not completely re-
leased at a vehicle speed of 5 km/h (3
mph) or more.
Stop the vehicle and release the park-
ing brake fully.
When the message appears, the master
warning light flashes, the brake system
warning light remains on, and an intermit-
tent warning tone also sounds.
(b)
This message is to warn the driver that
the engine coolant temperature is too
high.
Stop the vehicle and allow the engine
to cool.
The message appears, the master warning
light flashes, and a warning tone also
sounds.
NOTICE
Do not continue driving with an over-
heated engine. See “If your vehicle
overheats” on page 502 in Section 4.
(c)
This message is to remind the driver
that one or more of the doors are
opened.
Close the door securely.
The message appears, the master warning
light flashes, the open door warning light
remains on, and a warning tone also
sounds when the vehicle speed rises
above 5 km/h (3 mph).
(d)
This message is to remind the driver
that the fuel is nearly empty. When the message appears, the low fuel
level warning light comes on, and a warn-
ing tone also sounds. If it appears, fill the
fuel tank as soon as possible.
The message disappears by pressing the
“SELECT RESET” button when the engine
switch is in the “ON” position. However,
the low fuel level warning light remains
on.
(e)
This message is to warn the driver that
the automatic transmission fluid tem-
perature is too high.
If the automatic transmission fluid temper-
ature is too high, the message appears,
the automatic transmission fluid tempera-
ture warning light comes on, and a warn-
ing tone also sounds.
If this message appears while you are
driving, slow down and pull off the road.
Stop the vehicle at a safe place and put
the selector lever in “P”. With the engine
idling, wait until the message goes off. If
the message goes off, you may start the
vehicle again. If the message does not go
off, call a Toyota dealer or qualified repair
shop for assistance.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
“1” (First range):
The gear is fixed in first regardless of
vehicle speed and driving conditions.
This range is to be used when maxi-
mum engine braking is necessary.
If you attempt to downshift the transmis-
sion when it is not possible to downshift
due to high vehicle speed, a warning tone
sounds twice.
NOTICE
Do not drive in the “3”, “2” or “1”
range when driving at high speed or
climbing a gentle slope for a long
time. Otherwise the transmission or
engine may overheat causing damage.
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speed in each
range:
4.0 L V6 (1GR −FE) engine
range km/h (mph) 1 59 (36)
2 102 (63)
3 148 (91)
4.7 L V8 (2UZ −FE) engine
Without towing package
range km/h (mph)1 61 (37)
2 105 (65)
3 154 (95)
With towing package
range km/h (mph)1 58 (36)
2 100 (62)
3 147 (91) Four
−wheel drive models without towing
package
—Front drive control switch knob at “4L”
range km/h (mph)1 23 (14)
2 40 (24)
3 58 (36)
4 68 (42)
5 68 (42)
Four −wheel drive models with towing
package
—Front drive control switch knob at “4L”
range km/h (mph)1 22 (13)
2 38 (23)
3 56 (34)
4 64 (39)
5 64 (39)
NOTICE
Do not downshift if you are going
faster than the maximum allowable
speed for the next lower range.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
(e) 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
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(f) 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 “P” posi-
tion.
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(g) Good driving practice
If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope,
shift the selector lever into “S” posi-
tion.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use the transmission in “D”. Select an
appropriate shift range in “S” mode.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le- ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 522 in Section 4.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(g) Good driving practice
If the transmission repeatedly shifts up
and down between fourth gear and
overdrive when climbing a gentle slope,
shift the selector lever into “S” posi-
tion.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use the transmission in “D”. Select an
appropriate shift range in “S” mode.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le-
ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 522 in Section 4.
XS17036a
(i) “TOW/HAUL” switch (on some models)
Use “TOW/HAUL” mode when pulling a
trailer or hauling a heavy load. In this
mode, the driving and engine braking per-
formance is improved in accordance with
towing conditions or increased load.
To turn on: Push “TOW/HAUL” switch
“TOW/HAUL” mode is activated and
“TOW/HAUL” mode indicator light comes
on by pressing “TOW/HAUL” switch.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
“1” (First range):
The gear is fixed in first regardless of
vehicle speed and driving conditions.
This range is to be used when maxi-
mum engine braking is necessary.
If you attempt to downshift the transmis-
sion when it is not possible to downshift
due to high vehicle speed, a warning tone
sounds twice.
NOTICE
Do not drive in the “3”, “2” or “1”
range when driving at high speed or
climbing a gentle slope for a long
time. Otherwise the transmission or
engine may overheat causing damage.
Maximum allowable speeds
To get on a highway or to pass slower
traffic, maximum acceleration may be nec-
essary. Make sure you observe the follow-
ing maximum allowable speed in each
range:
4.0 L V6 (1GR −FE) engine
range km/h (mph) 1 59 (36)
2 102 (63)
3 148 (91)
4.7 L V8 (2UZ −FE) engine
without towing package
range km/h (mph)1 61 (37)
2 105 (65)
3 154 (95)
with towing package
range km/h (mph)1 58 (36)
2 100 (62)
3 147 (91) Four
−wheel drive models without towing
package
—Front drive control switch knob at “4L”
range km/h (mph)1 23 (14)
2 40 (24)
3 58 (36)
4 68 (42)
5 68 (42)
Four −wheel drive models with towing
package
—Front drive control switch knob at “4L”
range km/h (mph)1 22 (13)
2 38 (23)
3 56 (34)
4 64 (39)
5 64 (39)
NOTICE
Do not downshift if you are going
faster than the maximum allowable
speed for the next lower range.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(g) Good driving practice
If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope,
shift the selector lever into “S” posi-
tion.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use the transmission in “D”. Select an
appropriate shift range in “S” mode.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le-
ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 522 in Section 4.

239
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(g) Good driving practice
If the transmission repeatedly shifts up
and down between fourth gear and
overdrive when climbing a gentle slope,
shift the selector lever into “S” posi-
tion.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use the transmission in “D”. Select an
appropriate shift range in “S” mode.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(h) If you cannot shift the selector le-
ver out of “P” position
If you cannot shift the selector lever from
the “P” position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see “If
you cannot shift automatic transmission
selector lever” on page 522 in Section 4.
XS17032b
(i) “TOW/HAUL” switch (on some models)
Use “TOW/HAUL” mode when pulling a
trailer or hauling a heavy load. In this
mode, the driving and engine braking per-
formance is improved in accordance with
towing conditions or increased load.
To turn on: Push “TOW/HAUL” switch
“TOW/HAUL” mode is activated and
“TOW/HAUL” mode indicator light comes
on by pressing “TOW/HAUL” switch.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
If you plan to drive your Toyota in
another country...
First, comply with the vehicle registration
laws.
Second, confirm the availability of the cor-
rect fuel (unleaded and minimum octane
number). The threeway catalytic converter is an
emission control device installed in the
exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
CAUTION
Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.
Do not idle or park your vehicle
over anything that might burn easi-
ly such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases
flowing into the threeway catalytic
converter may cause it to overheat
and create a fire hazard. To prevent
this and other damage, observe the
following precautions:

Use only unleaded gasoline.
 Do not drive with an extremely low
fuel 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 at
idle speed for more than 20 minu-
tes.
 Avoid racing the engine.
 Do not pushstart or pullstart your
vehicle.
 Do not turn off the engine switch
while the vehicle is moving.
Operation in foreign countries Threeway catalytic converters