2008 TOYOTA SIENNA ignition

08 SIENNA_U (L/O 0801)
203
2008 SIENNA from Aug. ’08 Prod. (OM45455U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Engine (ignition) switch, Transmission and Parking
brake
Engine (ignition) switch204
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Automatic transmission 205
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Traction control system 209
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Vehicle stability control system 213
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Tire pressure warning system 214
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Parking brake 221
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Cruise control 222
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Dynamic laser cruise control 225
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SECTION 1 7

08 SIENNA_U (L/O 0801)
204
2008 SIENNA from Aug. ’08 Prod. (OM45455U)
“START”—Starter motor on. The key
will return to the “ON” position when
released.
For starting tips, see page 451 in 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 engine switch 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
engine switch from “ACC” to the “LOCK”
position. The selector lever must be put
in the “P” position before pushing the key.
Vehicles with engine immobilizer system—
Once you remove the key, the engine im-
mobilizer system is automatically set. (See
“Engine immobilizer system” on page 13
in Section 1−
2.)
When starting the engine, the engine
switch 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.
Approximately five hours after the engine
is turned off, you may hear sound coming
from under the floor around the driver ’s
seat for several minutes. This is normal
operation and does not indicate a malfunc-
tion. (See “Leak detection pump” on page
viii.)
It is not a malfunction if the needle on all
meters and gauges move slightly when the
engine switch is turned to the “ACC”,
“ON” or “START” position.
NOTICE
Do not leave the engine switch in the
“ON” position if the engine is not
running. The battery will discharge
and the ignition could be damaged.
Engine (ignition) switch

08 SIENNA_U (L/O 0801)
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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Keep your engine in good running
order. Malfunctions in the engine
electrical system, electronic ignition
system/distributor ignition system
or fuel system 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 cata-
lytic converter and the entire emis-
sion control system operate proper-
ly, 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 Supple-
ment”.CAUTION
Exhaust gases include harmful car-
bon monoxide (CO) that is colorless
and odorless. Inhaling exhaust
gases may lead to death or a seri-
ous health hazard.
The exhaust should be checked
occasionally. If there is a hole or
crack caused by corrosion, damage
to a joint or abnormal exhaust
noise, be sure to have the vehicle
inspected and repaired by your
Toyota dealer. Failure to do so may
allow exhaust gases to enter the
vehicle, resulting in death or a
serious health hazard.
If the vehicle is in a poorly venti-
lated area, turn the engine off. In
a closed area, such as a garage,
exhaust gases may collect and en-
ter the vehicle. This may lead to
death or a serious health hazard.
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.
Keep the back door and quarter
windows closed while driving. An
open or unsealed back door and
quarter windows may cause exhaust
gases to be drawn into the vehicle.
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 the smell of exhaust is noticed
inside the vehicle, open the win-
dows. Large amounts of exhaust in
the vehicle can cause driver drowsi-
ness and an accident, resulting in
death or a serious health hazard.
Have the vehicle inspected by your
Toyota dealer immediately.
Engine exhaust cautions

08 SIENNA_U (L/O 0801)
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2008 SIENNA from Aug. ’08 Prod. (OM45455U)
Dispose of used oil and filter only
in a safe and acceptable manner.
Do not dispose of used oil and fil-
ter in household trash, in sewers or
onto the ground. Call your dealer or
a service station for information
concerning recycling or disposal.
Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
NOTICE
Remember that battery and ignition
cables carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.
 Add only “Toyota Super Long Life
Coolant” or similar high quality eth-
ylene glycol based nonsilicate,
nonamine, nonnitrite, and nonbo-
rate coolant with longlife hybrid
organic acid technology to fill the
radiator. “Toyota Super Long Life
Coolant” is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).
If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.
 Do not allow dirt or anything else
to fall through the spark plug holes.
 Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.
 Do not reuse iridiumtipped spark
plugs by cleaning or regapping.
 Do not overfill automatic transmis-
sion fluid, or the transmission
could be damaged.
 Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.
 Be careful not to scratch the glass
surface with the wiper frame.
 When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
Front
Rear (twowheel drive models)
Positioning a floor jack