Tachometer - Toyota 2006 Sienna Owner's Manual

The gauge indicates the engine coolant
temperature when the ignition switch is
on. The engine operating temperature
will vary with changes in weather and
engine load.
If the needle moves into the red zone,
your engine is too hot. If your vehicle
overheats, stop your vehicle and allow the
engine to cool.
Your vehicle may overheat during severe
operating conditions, such as:
Driving up a long hill on a hot day.
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Reducing speed or stopping after high
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speed driving.
Idling for a long period with the air
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conditioning on in stop- and- go traffic.
Towing a trailer.
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06 SIENNA_U (L/O 0603)
NOTICE
z Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.
z Do not continue driving with an
overheated engine. See "If your ve-
hicle overheats" on page 420 in
Section 4.

Tachometer

The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and over- revving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get
into the red zone. This may cause
severe engine damage.
2006 SIENNA from March '06 Prod. (OM45443U)
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