2008 TOYOTA TUNDRA check engine light

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
“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.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
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 and engine braking
will be enabled.
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 262 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)
. . . . . . . . . . . . . . . . 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)
. . . . . . . . . . . . . . . .
Turn the “S” mode switch of the selec-
tor lever to the “ −” side to select the
“2” range. The transmission will down-
shift to second range when the vehicle
speed drops down to or lower than the
following speed, and more powerful en-
gine braking than that of the “3” range
position will be enabled.
4.0 L V6 (1GR −FE) engine
92 km/h (57 mph)
. . . . . . . . . . . . . . . .
4.7 L V8 (2UZ −FE) engine
Tw o −wheel drive models
—without towing package 93 km/h (57 mph)
. . . . . . . . . . . . . . . .
—with towing package 89 km/h (55 mph)
. . . . . . . . . . . . . . . .

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
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 and engine braking
will be enabled.
Turn the “S” mode switch of the selec-
tor to the “ −” side to select the “4”
range. The transmission will downshift
to fourth range and stronger engine
braking will be enabled. 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
262 in this Section.
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. 5.7 L V8 (3UR
−FE) engine
Tw o −wheel drive models
—without towing package 138 km/h (85 mph)
. . . . . . . . . . . . . . .
—with towing package 131 km/h (81 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” 131 km/h (81 mph)
. . . . . . . . . . . . . . .
—Front drive control switch knob
at “4L” 50 km/h (31 mph)
. . . . . . . . . . . . . . . .

244
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
NORMAL DRIVING MODE
Leave the system on during ordinary
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 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 engine switch is turned
to the “ON” position. If the indicator light
does not come on when the engine switch
is turned on, contact your Toyota dealer. The brake actuator temperature increases
during continuous operation of the follow-
ing systems under conditions such as on
slippery roads.
Traction control system
“AUTO LSD” system
If the brake actuator temperature becomes
too high while any of the systems is oper-
ating, a buzzer will start to sound intermit-
tently to indicate that the traction control
system can no l onger operate. In this
case, immediately stop your vehicle at a
safe place.
If the system continues to operate, the
buzzer sound changes from intermittent to
continuous. (The continuous buzzer
sounds for about 3 seconds.)
At this time, the slip indicator light comes
on and the traction control system tempo-
rarily stops operating in order to protect
the brake actuator. (Although the traction
control system does not operate, it is not
a problem to continue driving.) The sys-
tem is automatically restored after a short
time and the slip indicator light goes off.XS17010a
and only one of the rear wheels be-
gins to spin,which also may the rear
wheels.TRACTION CONTROL OFF MODE
(twowheel drive mode only)
When getting the vehicle out of mud or
snow, etc., and only one of the rear
wheels begins to spin, it may be benefi-
cial to turn off the traction control sys-
tem. This system which also controls
engine performance may interfere with
the process of freeing the rear wheels.

250
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
while driving.
CAUTION
Do not drive with the “AUTO LSD”
system continuously turned on.
The vehicle stability control system
helps provide integrated control of sys-
tems such as the 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 when the steering wheel is op-
erated abruptly.
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 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 556 in Section 72.)
Vehicle stability control
system (twowheel drive mode
only)

254
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
The “VSC OFF” indicator light flashes and
the slip indicator light comes on to warn
that there is a problem somewhere in the
following:
Vehicle stability control system
Traction control system
“AUTO LSD” system
The slight comes on when the engine
switch is turned to the “ON” position, and
will go off after a few seconds.
If the “VSC OFF” indicator light flashes
and the slip indicator light comes on dur-
ing driving, the vehicle stability control
system will not work. However, if the
brakes operate normally when applied, it
is not a problem to continue driving.
In the following cases, contact your Toyota
dealer:
The “VSC OFF” and slip indicator lights
do not come on after the engine switch
is turned to the “ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light remains on
after the engine switch is turned to the
“ON” position.
The “VSC OFF” indicator light flashes
and the slip indicator light comes on
while driving. The tire pressure warning system warns
you that the tire inflation pressure is
low.
The tire pressure warning system is not
a substitute for checking normal tire infla-
tion pressure. Check the tire inflation
pressure with a tire pressure gauge regu-
larly.
CAUTION
The warning system may not activate
immediately if blowout or sudden air
loss should occur.
Tire pressure warning system

255
2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
XS17013b
Ty p e A
XS17014b
Ty p e B
The tire pressure warning light comes on
when the engine switch is turned to the
“ON” position and goes off after a few
seconds. This means the tire pressure
warning system is operating properly. If
the tire inflation pressure becomes low,
the light comes on again. In this case,
adjusting the tire inflation pressure will
turn off the light after several minutes. If
the light comes on after blinking for 1
minute, the tire pressure warning system
is not working properly.
Indicatorstatus
MeaningsDo this
ON
Tire inflation
pressure is
lowAdjust the
tire
inflation
pressure
ON after
blinking for
1 minuteTire pressure
warning
system
malfunctionHave the
system
checked at
your Toyota
dealer
CAUTION
If the tire pressure warning light
comes on, be sure to observe the
following precautions. Failure to do
so could cause loss of vehicle control
and result in death or serious injury.
Stop your vehicle in a safe place as
soon as possible. Adjust the tire
inflation pressure immediately.
If the tire pressure warning light
comes on even after tire inflation
pressure adjustment, it is probable
that you have a flat tire. Check the
tires. If the tire is flat, change to
the temporary spare tire and have
the flat tire repaired by the nearest
Toyota dealer.
Avoid abrupt maneuvering and brak-
ing. If the vehicle tires deteriorate,
you could lose control of the steer-
ing wheel or the brakes.

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2008 TUNDRA from Apr. ’08 Prod. (OM 34477U)
XS17018b
Ty p e A
XS17017b
Ty p e B
IF THE TIRE PRESSURE WARNING
LIGHT COMES ON AFTER BLINKING
FOR 1 MINUTE...
If the tire pressure warning light comes
on after blinking for 1 minute when the
engine switch is turned to the “ON”
position, the tire pressure warning sys-
tem is not working properly.
The system will be disabled in the follow-
ing conditions:
(When the condition becomes normal, the
system will work properly.)
If tires not equipped with tire pressure
warning valves and transmitters are
used.
If the ID code on the tire pressure
warning valves and transmitters is not
registered in the tire pressure warning
computer.
The system may be disabled in the follow-
ing conditions:
(When the condition becomes normal, the
system will work properly.)
If electronic devices or facilities using
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.
If tire chains are used.
If the tire pressure warning light continues
to come on after blinking for 1 minute
when the engine switch is turned to the
“ON” position, have the system checked
by your Toyota dealer.
Even if you use genuine wheels, the tire
pressure warning system may not work
properly with some types of tires.
Pushing the tire pressure warning reset
switch should not turn off the tire pressure
warning light.
For vehicles sold in U.S.A.
This device complies with Part 15 of the
FCC Rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful
interference, and (2) this device must
accept any interference received, includ-
ing interference that may cause unde-
sired operation.