2001 TOYOTA SIENNA ignition

01 SIENNA_U (L/O0008)
1432001 MY SIENNA (OM45406U)
(l) “VSC” Warning Light
The light warns that when there is a prob-
lem somewhere in the vehicle skid control
system or traction control system.
The light will come on when the ignition
key is turned to “ON”, and will go off after
about a few seconds. This means that the
system is operating properly.
If the “VSC” warning light comes on, the
vehicle skid control system and traction
control system do not work. However, as
conventional braking operates when ap-
plied, there is no problem to continue your
driving.
If any of the following conditions occur,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle:
The “VSC” warning light does not come
on after the ignition is turned to on.
The “VSC” warning light is left on after
the ignition is turned to on.
The “VSC” warning light comes on
while driving.(m) “TRAC OFF” Indicator/Warning Light
The light warns that when there is a prob-
lem somewhere in the vehicle skid control
system or traction control system.
The light will come on when the ignition
key is turned to “ON”, and will go off after
about a few seconds. This means that the
system is operating properly.
If the “TRAC OFF” indicator light comes
on, the traction control system does not
work. However, as conventional braking
operates when applied, there is no prob-
lem to continue your driving.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle:
The “TRAC OFF” indicator/warning light
does not come on after the ignition is
turned to on.
The “TRAC OFF” indicator/warning light
is left on after the ignition is turned to
on.
The “TRAC OFF” indicator/warning light
comes on while driving without pushing
“TRAC OFF” switch.(n) Low Windshield Washer Fluid Level
Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see “Adding washer fluid” in Section 7−3.)
(o) Low Tire Pressure Warning Light
This light warns that the tire pressure of
any one of the tires is critically reduced.
The light comes on when the ignition key
is turned to the “ON” position. It goes off
after a few seconds. This indicates that
the low tire pressure warning system is
functioning properly.
If the light comes on while driving, adjust
tire pressure to the specified level. (See
“Tires” in Section 8.) After the tire pres-
sure is adjusted, the light should go off
after driving at about more than 30 km/h
(19 mph) for some time. If the light still
remains, have the low tire pressure warn-
ing system checked at your Toyota dealer.
(p) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver’s door with
the ignition key in the “ACC” or “LOCK”
position.
ProCarManuals.com

01 SIENNA_U (L/O0008)
1442001 MY SIENNA (OM45406U)
CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light and low windshield
washer fluid level warning light)
1. Apply the parking brake.
2. Open one of the doors.
The open door warning light should
come on.
3. Close the door.
The open door warning light should go
off.
4. Turn the ignition key to “ACC”.
The SRS warning light should come on.
It goes off after about 6 seconds.
5. Turn the ignition key to “ON”, but do
not start the engine.
All the service reminder indicators ex-
cept the open door warning light, open
power sliding door warning light and
SRS warning light should come on. The
“ABS” warning light, “VSC” warning
light, low tire pressure warning lights,
“TRAC OFF” indicator/warning light and
slip indicator light go off after a few
seconds.6. Vehicles with a power sliding door sys-
tem:
Open the sliding door.
The open power sliding door warning
light should come on.
Close the sliding door.
The open power sliding door warning
light should go off.
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.
ProCarManuals.com

01 SIENNA_U (L/O0008)
1452001 MY SIENNA (OM45406U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Ignition switch, Transmission and Parking brake
Ignition switch with steering lock146 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Automatic transmission147 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Traction control system151 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle skid control system153 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system155 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cruise control157 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 1− 6
ProCarManuals.com

01 SIENNA_U (L/O0008)
1462001 MY SIENNA (OM45406U)
“START”—Starter motor on. The key
will return to the “ON” position when
released.
For starting tips, see Section 3.
“ON”—Engine on and all accessories
on.
This is the normal driving position.
“ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the key in the “ACC” or
“LOCK” position and open the driver’s
door, a buzzer will remind you to remove
the key.
“LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position.You must push in the key to turn the key
from “ACC” to the “LOCK” position. The
selector lever must be put in the “P” posi-
tion before pushing the key.
Vehicles with engine immobiliser system—
Once you remove the key, the engine im-
mobiliser system is automatically set. (See
“Engine immobiliser system” in Section
1−2.)
When starting the engine, the key may
seem stuck at the “LOCK” position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
NOTICE
Do not leave the key in the “ON”
position if the engine is not running.
The battery will discharge and the
ignition could be damaged.
Ignition switch with steering
lock
ProCarManuals.com

01 SIENNA_U (L/O0008)
1472001 MY SIENNA (OM45406U)
Automatic transmission
Your automatic transmission has a shift
lock system to minimize the possibility of
incorrect operation. This means you can
only shift out of “P” position when the
brake pedal is depressed (with the ignition
switch in “ON” or “ACC” position and the
selector lever pulled toward you).
(a) Selector lever
The shift position is displayed on the in-
strument cluster.
P:Parking, engine starting and
key removal
R:Reverse
N:Neutral
D:Normal driving (with overdrive on)
2:Stronger engine braking
L:Maximum engine braking
Selector lever Overdrive switch
With the brake pedal
depressed, shift while pulling
the selector lever toward you.
(The ignition switch must be
in “ON” or “ACC” position.)
Shift while pulling
the selector lever
toward you.
Shift normally.
ProCarManuals.com

01 SIENNA_U (L/O0008)
1512001 MY SIENNA (OM45406U)
Traction control system
Slip indicator light
“TRAC OFF” indicator/warning light
“VSC” warning light
AUTOMATIC TRACTION CONTROL
SYSTEM
The traction control system automatical-
ly helps control the spinning of the
front wheels which may occur when ac-
celerating on slippery road surfaces,
thus assisting driver to control the driv-
ing power of the front wheels.
When you turn the ignition switch on,
the traction control system always
turns on automatically, and the slip in-
dicator light and “TRAC OFF” indicator/
warning light will come on. The indica-
tor lights will go off after a few
seconds.Leave the system on during ordinary
driving so that it can operate when
needed. When traction control is ap-
plied, the slip indicator light blinks.
While the “TRAC OFF” indicator/warning
light and “VSC” warning light come on, the
traction control system cannot be oper-
ated.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
is started. This means that the traction
control system is in the self−check mode,
and does not indicate malfunction.
When the traction control system is oper-
ating, you may feel vibration or noise of
your vehicle, caused by operation of the
brakes. This indicates the system is func-
tioning properly.
When getting the vehicle out of mud or
new snow, etc. the traction control system
will help operate to prevent the wheels
from spinning.
ProCarManuals.com

01 SIENNA_U (L/O0008)
1522001 MY SIENNA (OM45406U)
MANUAL OPERATION
You can turn off the traction control
system by pushing the “TRAC OFF”
switch. The “TRAC OFF” indicator/warn-
ing light will come on. Pushing the
“TRAC OFF” switch a second time
turns on the traction control system
and the “TRAC OFF” indicator/warning
light will go off.“TRAC OFF” indicator/warning light
“VSC” warning light
TRACTION CONTROL SYSTEM FAILURE
WA R N I N G
These lights warn that when there is a
problem somewhere in the traction control
system.
The lights will come on when the ignition
key is turned to “ON”, and will go off after
about a few seconds.
If the “VSC” warning light and “TRAC
OFF” indicator light come on, the traction
control system does not work. However,
as conventional braking operates when ap-
plied, there is no problem to continue your
driving.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle:
The “VSC” warning light and/or “TRAC
OFF” indicator light do/does not come
on after the ignition is turned to on.
The “VSC” warning light and “TRAC
OFF” indicator light are left on after the
ignition is turned to on.
The “VSC” warning light and “TRAC
OFF” indicator light comes on while
driving without pushing “TRAC OFF”
switch.
ProCarManuals.com

01 SIENNA_U (L/O0008)
1542001 MY SIENNA (OM45406U)
The vehicle skid control system activates
when the vehicle speed is about more
than 15 km/h (9 mph).
While the “VSC” warning light and “TRAC
OFF” indicator/warning light come on, the
vehicle skid control system cannot be op-
erated.
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle
is started. This means that the vehicle
skid control is in the self−check mode and
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, it is not that your vehicle
is absolutely safe. Reckless driving
will result in an unexpected acci-
dent. Always keep safety driving in
mind. If the slip indicator light fla-
shes and/or an alarm sounds, spe-
cial 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.
VEHICLE SKID CONTROL SYSTEM
FAILURE WARNING
These lights warn that when there is a
problem somewhere in the vehicle skid
control system.
The lights will come on when the ignition
key is turned to “ON”, and will go off after
about a few seconds.
If the “VSC” warning light and “TRAC
OFF” indicator/warning light come on, the
vehicle skid control system does not work.
However, as conventional braking operates
when applied, there is no problem to con-
tinue your driving.
If any of the following conditions occur,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle:
The “VSC” warning light and “TRAC
OFF” indicator/warning light do not
come on after the ignition is turned to
on.
The “VSC” warning light and/or “TRAC
OFF” indicator/warning light are left on
after the ignition is turned to on.
ProCarManuals.com