2003 TOYOTA SEQUOIA engine

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(b) Overdrive switch
You can select either third gear (with
overdrive off) or fourth gear (with over-
drive on) by pushing this switch.
To turn the overdrive off, push the switch.
The “O/D OFF” indicator light should come
on. To turn the overdrive on again, push
the switch again. The “O/D OFF” indicator
light should go off.
Always drive your vehicle with the over-
drive on for better fuel economy and
quieter driving.
If the engine is turned off when the over-
drive is off and restarted, the overdrive
will be on automatically.When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking will not be enabled
because the cruise control is not can-
celled.
For ways to decrease the vehicle speed,
see “Cruise control” on page 159 in this
section.
(c) Normal driving
1. Start the engine as instructed in “How to start the engine” on page 298 in
Section 3. The transmission must be in
“P” or “N”.
When the front drive control lever is in
“L4” (lowspeed position, fourwheel
drive), the driving pattern selector setting
has no effect on gear shift timing. (See
“Fourwheel drive system” on page 147 in
this section for information of the front
drive control lever.) 2. With your foot holding down the brake pedal, shift the selector lever to “D”.
When the lever is in the “D” position, the
automatic transmission system will select
the most suitable gear for running condi-
tions such as normal cruising, hill climb-
ing, hard towing, etc. Always turn the overdrive on for better
fuel economy and quieter driving. If the
engine coolant temperature is low or when
the front drive control lever is in “L4”
(lowspeed position, fourwheel drive), the
transmission will not shift into the over-
drive gear even with the overdrive on.
(See “Fourwheel drive system” on page
147 in this section for information of the
front drive control lever.)
CAUTION
Never put your foot on the accelera-
tor pedal while shifting.
3. Release the parking brake and brake
pedal. Depress the accelerator pedal
slowly for smooth starting.
If the automatic locking operation linked to
shift lever position is set, all doors are
automatically locked when the shift lever
is moved out of “P” position after the
ignition switch is turned to the “ON” posi-
tion and all the doors are closed. For
details, see “—Automatic door locking and
unlocking functions” on page 16 in Section
12.

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(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
Push the overdrive switch. The “O/D
OFF” indicator light will come on and
the transmission will downshift to third
gear.
Shift into the “2” position. The trans-
mission will downshift to second gear
when the vehicle speed drops down to
or lower than the following speed, and
stronger engine braking will be en-
abled.Twowheel drive models 110 km/h (68 mph)
Fourwheel drive models
Front drive control lever in “H”
(2WD) or “H” (4WD) 110 km/h (68 mph)
Front drive control lever in “L4” 39 km/h (24 mph)
Shift into the “L” position. The trans-
mission will downshift to first gear
when the vehicle speed drops down to
or lower than the following speed, and
maximum engine braking will be en-
abled.
Twowheel drive models 55 km/h (34 mph)
Fourwheel drive models Front drive control lever in “H”
(2WD) or “H” (4WD) 55 km/h (34 mph)
Front drive control lever in “L4” 10 km/h (5 mph)
When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking will not be enabled
because the cruise control is not can-
celled.
For ways to decrease the vehicle speed,
see “Cruise control” on page 159 in this
section.CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(e) Using the “2” and “L”, positions
The “2” and “L” positions are used for
strong engine braking as described pre-
viously.
With the selector lever in “2” or “L”, you
can start the vehicle in motion as with the
lever in “D”.
With the selector lever in “2”, the vehicle
will start in first gear and automatically
shift to second gear.
With the selector lever in “L”, the trans-
mission is engaged in first gear.

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NOTICE
Be careful not to overrev the en-
gine. Watch the tachometer to keep
engine rpm from going into the red
zone. The approximate maximum al-
lowable speed for each position is
given above for your reference:
Twowheel drive models “2” 110 km/h (68 mph) . . . . . . .
“L” 60 km/h (38 mph) . . . . . . . .
Fourwheel drive models Front drive control lever in “H”
(2WD) or “H” (4WD)“2” 110 km/h (68 mph) . . . . . . .
“L” 60 km/h (38 mph) . . . . . . . .
Front drive control lever in “L4” “2” 45 km/h (28 mph) . . . . . . . .
“L” 25 km/h (16 mph) . . . . . . . .
 Do not continue hill climbing or
hard towing for a long time in the
“2” or “L” position. This may cause
severe automatic transmission dam-
age from overheating. To prevent
such damage, “D” position should
be 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
“R” 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 “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.
If the automatic unlocking operation linked
to shift lever position is set, all doors are
automatically unlocked when the selector
lever is moved to “P” position after the
ignition switch is turned to “ON” position.
For details, see “—Automatic door locking
and unlocking functions” on page 16 in
Section 12.
(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.

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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” (2WD) MODE
“H” (4WD) MODE (center
differential unlock) or “L4”
MODE (center differential
unlock)
“H” (4WD) MODE (center
differential lock) or “L4”
MODE (center differential
lock)
Use the front drive control lever, “4WD”
switch and center differential lock
switch to select the transfer and center
differential modes.
The “H” and “L4” position of the front
drive control lever provide either lock or
unlock the mode of the center differential.
Use the center differential lock system if
your wheels get stuck in a ditch, or when
you are driving on a slippery or bumpy
surface. When the center differential is
locked, the vehicle skid control system is
automatically turned off and the center dif-
ferential lock and “VSC OFF” indicator
lights come on because the function that
controls engine performance interferes
with the process of freeing your wheels.
NOTICE
As soon as the center differential lock
switch is turned on, the “VSC OFF”
indicator light comes on. After the
wheels are out of the ditch or off the
slippery or bumpy surface, turn the
center differential lock switch off.
Make sure that the center differential
lock indicator light and “VSC OFF”
indicator light turn off.
Fourwheel drive system—
(a) Front drive control

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Advice for driving on slippery roads in
“L4” (low speed position) mode
If you shift the front drive control lever to
“L4” and the automatic transmission lever
to “2” when you drive in steep offroad
areas, the output of the brake can be
controlled effectively by the active traction
control system, which assists the driver to
control the driving power of 4 wheels.
Use the “L” position of the automatic
transmission lever for maximum power
and traction when your wheels get stuck
or when you drive down a steep incline.
In the following cases, the output of the
brake can be controlled by the active trac-
tion control system if the engine speed is
under 3000 rpm (normally engine speed is
under 3000 rpm when the wheels get un-
stuck).
The front drive control lever in the “L4”
position and the automatic transmission
lever in the “L” position or the automat-
ic transmission lever in the “D” or “2”
with the transmission downshifting to
the first gear
The front drive control lever in the “L4”
position and the automatic transmission
lever in the “R” position(As for the automatic transmission lever
positions, see “Automatic transmission” in
this section.)
The A.D.D. can be engaged or disen-
gaged by the shifting operations des-
cribed in “(c) Shifting procedure”.
You should drive in fourwheel drive for
at least 16 km (10 miles) each month.
This will assure that the front drive com-
ponents are lubricated.
(b) A.D.D. (automatic
disconnecting differential)

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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 selfcheck
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. At this time, the slip indi-
cator 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 key is turned
to “ON”. If the indicator light does not
come on when the ignition is turned on,
contact your Toyota dealer.
TRACTION CONTROL OFF MODE
If your wheels get stuck in a ditch
when you are driving on a severe off
road and sand, turn off the traction
control system. This system that con-
trols engine performance interferes with
the process of freeing your wheels.
To turn off: Push “TRAC OFF” switch.
The “TRAC OFF” indicator light will come
on.
To turn on: Push “TRAC OFF” switch
once again.
The “TRAC OFF” indicator light will go off.

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In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.The active traction control system auto-
matically helps prevent the spinning of
4 wheels (4WD mode) or rear wheels
(2WD mode) when the vehicle is started
or accelerated on slippery road sur-
faces.
When the ignition key is turned to “ON”,
the system automatically turns on.
CAUTION
Under certain slippery road condi-
tions, full traction of the vehicle and
power against 4 wheels (4WD mode)
or rear wheels (2WD mode) cannot be
maintained, even though the active
traction control system is in opera-
tion. Do not drive the vehicle under
any speed or maneuvering conditions
which may cause the vehicle to lose
traction control. In situations where
the road surface is covered with ice
or snow, your vehicle should be fitted
with snow tires or tire chains. Always
drive at an appropriate and cautious
speed for the present road condi-
tions.
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 ac-
tive traction control system is in the self
check mode, but does not indicate a mal-
function.
Active traction control system
(fourwheel drive models)

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In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the ignition key is turned to “ON”.
The warning light remains on after the
ignition key is turned to “ON”.
The warning light comes on while driv-
ing.The vehicle skid control system helps
provide integrated control of the sys-
tems such as antilock brake system,
traction control, engine control, etc.
This system automatically controls the
brakes and engine to help prevent the
vehicle from skidding when cornering
on a slippery road surface or operating
steering wheel abruptly.
The vehicle skid control activates when
the vehicle speed is more than the follow-
ing speed.
Front drive control lever in “H”
15 km/h (9 mph)
Front drive control lever in “L4” 30 km/h (18 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 selfcheck mode but does
not indicate a malfunction.
CAUTION
Do not rely excessively on the ve-
hicle skid control system. Even if
the vehicle skid control system is
operating, you must always drive
carefully and attentively to avoid
serious injury. Reckless driving will
result in an unexpected accident. If
the slip indicator light blinks,
sounding 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 skid control sys-
tem may not function correctly.
When replacing the tires or wheels,
contact your Toyota dealer. (See
“Checking and replacing tires” on
page 364 in Section 72.)
Vehicle skid control system