check engine TOYOTA TUNDRA 2007 2.G User Guide

2132007 TUNDRA from Jul. ’07 Prod. (OM34463U)
When the “S” mode indicator light does
not come on even with the selector lever
moved to the “S” position, there may be a
problem somewhere in the system. Have
your vehicle checked/repaired by your
Toyota dealer as soon as possible. In this
case, you can drive in the same condition
as in the “D” position.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
When driving in the “D” position—
Shift the selector lever to “S” position.
When driving in the “5” range within
the “S” position—
Move the selector lever down to the
“− ” side to select the “4” range. The
transmission will downshift to fourth
range when the vehicle speed drops
down to or lower than the following
speed, and engine braking will be en-
abled. 4.7 L V8 (2UZ
−FE) engine
Four −wheel drive models without tow-
ing package
—Front drive control switch knob
at “4L” 75 km/h (46 mph)
. . . . . . . . . . . . . . . .
Four −wheel drive models with towing
package
—Front drive control switch knob
at “4L” 72 km/h (44 mph)
. . . . . . . . . . . . . . . .
When the cruise control is being used,
engine braking can not be enabled be-
cause the cruise control is not can-
celled. However, engine braking will be
automatically enabled if the vehicle
speed is higher than the set speed of
the cruise control depending on the
driving conditions.
For decreasing the vehicle speed, see
“Cruise control” on page 259 in this
Section.
Move the selector lever down to the
“ − ” side to select the “3” range. The
transmission will downshift to third
range when the vehicle speed drops
down to or lower than the following
speed, and stronger engine braking will
be enabled. 4.0 L V6 (1GR
−FE) engine
136 km/h (84 mph)
. . . . . . . . . . . . . . .
4.7 L V8 (2UZ −FE) engine
Tw o −wheel drive models
—without towing package 138 km/h (85 mph)
. . . . . . . . . . . . . . .
—with towing package 132 km/h (82 mph)
. . . . . . . . . . . . . . .
Four −wheel drive models without tow-
ing package
—Front drive control switch knob
at “2WD” or “4H” 138 km/h (85 mph)
. . . . . . . . . . . . . . .
—Front drive control switch knob
at “4L” 52 km/h (32 mph)
. . . . . . . . . . . . . . . .
Four −wheel drive models with towing
package
—Front drive control switch knob
at “2WD” or “4H” 132 km/h (82 mph)
. . . . . . . . . . . . . . .
—Front drive control switch knob
at “4L” 50 km/h (31 mph)
. . . . . . . . . . . . . . . .

2192007 TUNDRA from Jul. ’07 Prod. (OM34463U)
“2” (Second range):
First or second gear will be selected
automatically according to the vehicle
speed and driving conditions. This
range is to be used when engine brak-
ing stronger than that of the “3” range
position is necessary.
“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. 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 speeds in each
range:
5.7 L V8 (3UR
−FE) engine
Without towing package
range km/h (mph)1 62 (38)
2 106 (65)
3 154 (95)
With towing package
range km/h (mph)1 59 (36)
2 101 (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)
6 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)
6 64 (39)
NOTICE
Do not downshift if you are going
faster than the maximum allowable
speed for the next lower range.
When the “S” mode indicator light does
not come on even with the selector lever
moved to the “S” position, there may be a
problem somewhere in the system. Have
your vehicle checked/repaired by your
Toyota dealer as soon as possible. In this
case, you can drive in the same condition
as in the “D” position.

2282007 TUNDRA from Jul. ’07 Prod. (OM34463U)
When the “S” mode indicator light does
not come on even with the selector lever
moved to the “S” position, there may be a
problem somewhere in the system. Have
your vehicle checked/repaired by your
Toyota dealer as soon as possible. In this
case, you can drive in the same condition
as in the “D” position.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
When driving in the “D” position—
Shift the selector lever to “S” position.
When driving in the “5” range within
the “S” position—
Turn the “S” mode switch of the selec-
tor lever to the “−” side to select the
“4” range. The transmission will down-
shift to fourth range when the vehicle
speed drops down to or lower than the
following speed, and engine braking will
be enabled. 4.7 L V8 (2UZ
−FE) engine
Four −wheel drive models without tow-
ing package
—Front drive control switch knob
at “4L” 75 km/h (46 mph)
. . . . . . . . . . . . . . . .
Four −wheel drive models with towing
package
—Front drive control switch knob
at “4L” 72 km/h (44 mph)
. . . . . . . . . . . . . . . .
When the cruise control is being used,
engine braking can not be enabled be-
cause the cruise control is not can-
celled. However, engine braking will be
automatically enabled if the vehicle
speed is higher than the set speed of
the cruise control depending on the
driving conditions.
For decreasing the vehicle speed, see
“Cruise control” on page 259 in this
Section.
Turn the “S” mode switch of the selec-
tor lever to the “ −” side to select the
“3” range. The transmission will down-
shift to third range when the vehicle
speed drops down to or lower than the
following speed, and stronger engine
braking will be enabled.
4.0 L V6 (1GR −FE) engine
136 km/h (84 mph)
. . . . . . . . . . . . . . .
4.7 L V8 (2UZ −FE) engine
Tw o −wheel drive models
—without towing package 138 km/h (85 mph)
. . . . . . . . . . . . . . .
—with towing package 132 km/h (82 mph)
. . . . . . . . . . . . . . .
Four −wheel drive models without tow-
ing package
—Front drive control switch knob
at “2WD” or “4H” 138 km/h (85 mph)
. . . . . . . . . . . . . . .
—Front drive control switch knob
at “4L” 52 km/h (32 mph)
. . . . . . . . . . . . . . . .

2352007 TUNDRA from Jul. ’07 Prod. (OM34463U)
When the “S” mode indicator light does
not come on even with the selector lever
moved to the “S” position, there may be a
problem somewhere in the system. Have
your vehicle checked/repaired by your
Toyota dealer as soon as possible. In this
case, you can drive in the same condition
as in the “D” position.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
When driving in the “D” position—Shift the selector lever to the “S”
position.
When driving in the “6” range within
the “S” position— Turn the “S” mode switch of the se-
lector to the “ −” side to select the “5”
range. The transmission will down-
shift to fifth range when the vehicle
speed drops down to or lower than
the following speed, and engine brak-
ing will be enabled. 5.7 L V8 (3UR
−FE) engine
Four −wheel drive models
—Front drive control switch knob
at “4L” 79 km/h (49 mph)
. . . . . . . . . . . . . . .
When the cruise control is being used,
even if you downshift the transmission,
engine braking will not be enabled be-
cause the cruise control is not can-
celled. However, engine braking will be
automatically enabled if the vehicle
speed is higher than the set speed of
the cruise control depending on the
driving conditions.
For ways to decrease the vehicle
speed, see “Cruise control” on page
259 in this Section.
Turn the “S” mode switch of the selec-
tor to the “ −” side to select the “4”
range. The transmission will downshift
to fourth range when the vehicle speed
drops down to or lower than the follow-
ing speed, and stronger engine braking
will be enabled. 5.7 L V8 (3UR
−FE) engine
Four −wheel drive models
—Front drive control switch knob
at “4L” 79 km/h (49 mph)
. . . . . . . . . . . . . . .
When the cruise control is being
used, even if you downshift the
transmission, engine braking will not
be enabled because the cruise con-
trol is not cancelled. However, engine
braking will be automatically enabled
if the vehicle speed is higher than
the set speed of the cruise control
depending on the driving conditions.
Turn the “S” mode switch of the selec-
tor to the “ −” side to select the “3”
range. The transmission will downshift
to third range when the vehicle speed
drops down to or lower than the follow-
ing speed, and more powerful engine
braking than that of the “4” range posi-
tion will be enabled.

2422007 TUNDRA from Jul. ’07 Prod. (OM34463U)
The traction control system automatical-
ly helps prevent the spinning of rear
wheels (twowheel drive models) or 4
wheels (fourwheel drive models) when
the vehicle is started or accelerated on
slippery road surfaces.
When the ignition switch is turned to the
“ON” position, the system automatically
turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power to the rear wheels (twowheel
drive models) or 4 wheels (fourwheel
drive models) cannot be maintained,
even though the traction control sys-
tem is in operation. Do not drive the
vehicle under any speed or maneuver-
ing conditions which may cause the
vehicle to lose traction control. In si-
tuations where the road surface is
covered with ice or snow, your ve-
hicle should be fitted with snow tires
or tire chains. Always drive at an ap-
propriate and cautious speed for the
present road conditions.
XS17004a
Ty p e A
XS17005a
Ty p e B
NORMAL DRIVING MODE
Leave the system on during the ordi-
nary driving so that it can operate
when needed.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the trac-
tion control system is in the self−check
mode, but does not indicate a malfunction.
When the traction control system is oper-
ating, the following conditions occur:
The system controls the spinning of the
rear wheels (two −wheel drive models)
or 4 wheels (four −wheel drive models).
At this time, the slip indicator light
blinks.
You may feel vibration or noise in your
vehicle, caused by operation of the
brakes. This indicates the system is
functioning properly.
The slip indicator light comes on for a few
seconds when the ignition switch is turned
to the “ON” position. If the indicator light
does not come on when the ignition is
turned on, contact your Toyota dealer.
Traction control system

2482007 TUNDRA from Jul. ’07 Prod. (OM34463U)
The vehicle stability control system
helps provide integrated control of the
systems such as antilock brake sys-
tem, traction control, engine control,
etc. This system automatically controls
the output of the brakes or engine to
help prevent the vehicle from skidding
when cornering on a slippery road sur-
face or operating steering wheel abrupt-
ly.
The vehicle stability control system is acti-
vated when the vehicle speed is more
than 15 km/h (9 mph).
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
begins to move. This means that the sys-
tem is in the self−check mode, but does
not indicate a malfunction.CAUTION
Do not rely excessively on the ve-
hicle stability control system. Even
if the vehicle stability control sys-
tem is operating, you must always
drive carefully and attentively to
avoid serious injury. Reckless driv-
ing will result in an unexpected ac-
cident. If the slip indicator light
blinks and an alarm sounds, special
care should be taken while driving.
Only use tires of specified size. The
size, manufacturer, brand and tread
pattern for all 4 tires should be the
same. If you use the tires other
than specified, or different type or
size, the vehicle stability control
system may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 551 in Section 72.)
XS17004a
Ty p e A
XS17005a
Ty p e B
Vehicle stability control
system

2502007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS17035a
When getting the vehicle out of mud or
newly fallen snow, etc., it may be bene-
ficial to turn off the vehicle stability
control system. This system that con-
trols engine performance interferes with
the process of freeing rear wheels
(twowheel drive models) or 4 wheels
(fourwheel drive models).
To turn off: First, push the “VSC OFF”
switch to turn off the traction control
system and check that the “AUTO LSD”
and slip indicator lights come on. Then,
push and hold the “VSC OFF” switch
for 3 seconds or more with the vehicle
stopped.
The “VSC OFF” and slip indicator lights
will come on.To turn on: Briefly push the “VSC OFF”
switch once again.
The “VSC OFF” and slip indicator lights
will go off.
If the engine is turned off while the “VSC
OFF” and slip indicator lights are on and
then restarted, the indicator lights will turn
off automatically.
When you briefly push the “VSC OFF”
switch, turn off the vehicle stability control
system. See “Traction control system” on
page 242 in this Section.
The “VSC OFF” and slip indicator lights
come on for a few seconds when the
ignition switch is turned to the “ON” posi-
tion. If the indicator lights do not come on
when the ignition switch is turned to the
“ON” position, contact your Toyota dealer.
CAUTION
Do not drive with the vehicle stability
control system continuously turned
off.
XS17006a
Ty p e A
XS17007a
Ty p e B

4062007 TUNDRA from Jul. ’07 Prod. (OM34463U)
For vehicles sold in Canada
This ISM device compiles with
Canadian ICES001.
In the following cases, the system may
not work properly.
When ice, snow, mud or other objects
build up on the sensor
When the vehicle is parked in extreme-
ly high or extremely low temperature
for a long period
When driving on bumpy or graveled
roads or on grass
When a device such as a horn from
another vehicle, motorcycle engine, or
an air brake sound from a heavy −duty
vehicle, issues ultrasonic waves, near
your vehicle
When attaching a two −way radio anten-
na
When rain or water splashes on the
sensor
When operating the vehicle on an in-
clined surface
When a radio antenna or fender pole
is mounted on your vehicle
When a towing hitch is mounted on
your vehicle
When a towing eyelet is mounted on
your vehicle
When the tail −gate is opened
When the bumper is damaged The system may not detect the follow-
ing.
Thin objects such as a wire or rope
Objects with a surface area too small
to reflect ultrasonic waves such as
wire gauze or fence
Sound wave absorbing objects or mate-
rial such as cotton or snow
A person near the vehicle (depending
on the type of clothes worn)
Objects with a sharp edge
Small or short objects
Tall objects with an upper part project-
ing toward the vehicle
Objects just under the bumper
Objects very close to your vehicle
When the bumper is damaged
In the following cases, have your
Toyota dealer check the system.
When the bumper is damaged
When the indicator is continuously on

4412007 TUNDRA from Jul. ’07 Prod. (OM34463U)
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 ignition while
the vehicle is moving.
Keep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel systems could cause an ex-
tremely high threeway catalytic
converter temperature.
 If the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a checkup as soon
as possible. Remember, your Toyota
dealer knows your vehicle and its
threeway catalytic converter sys-
tem best.
 To ensure that the threeway
catalytic converter and the entire
emission control system operate
properly, your vehicle must receive
the periodic inspections required by
the Toyota Maintenance Schedule.
For scheduled maintenance
information, refer to the “Scheduled
Maintenance Guide” or “Owner’s
Manual Supplement”.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.
Engine exhaust cautions

4422007 TUNDRA from Jul. ’07 Prod. (OM34463U)
To allow proper operation of your
vehicle’s ventilation system, keep
the inlet grilles in front of the wind-
shield clear of snow, leaves, or oth-
er obstructions.
If you smell exhaust fumes in the
vehicle, open the windows and
close the rear window to ensure
plenty of fresh air enters the ve-
hicle. If you can smell exhaust
fumes even though there are no
other vehicles in the surrounding
area, have your vehicle checked by
your Toyota dealer. Continued in-
halation of exhaust fumes can lead
to death by gas poisoning.
Toyota does not recommend occu-
pying the rear cargo area when it
is fitted with a slidein camper,
camper shell or other type cover
while the engine is running. This
caution applies to both driving and
stopped or parked situations with
the engine running. Particular care
should be taken to prevent exhaust
gases from entering camper bodies,
trailers or other enclosures on or
around your vehicle. If exhaust
fumes are detected, open all win-
dows and thoroughly ventilate the
area.FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.
Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
Facts about engine oil
consumption