Speedometer And Odometer; Trip Odometer; Tachometer - Pontiac 2005 Grand Am Owner's Manual

Speedometer and Odometer

Your speedometer lets you see your speed in both
miles per hour (mph) and kilometers per hour (km/h).
Your odometer shows how far your vehicle has
been driven, in either miles (used in the United States)
or kilometers (used in Canada).
Your vehicle has a tamper resistant odometer. The
digital odometer will read 999,999 if someone tries to
turn it back.
Repair or replacement of your instrument panel cluster
should only be performed by a qualified GM service
center.

Trip Odometer

The trip odometer can tell you how far you have driven
since you last reset it.
The reset button is located below the tachometer. To
reset the trip odometer to zero, press and hold briefly the
ribbed side of the button while the trip odometer is
displayed. Also, by pressing this button for less than
one second you can toggle between the odometer and
the trip odometer.
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Tachometer

The tachometer shows your engine speed in revolutions
per minute (rpm).