Chevrolet 1997 Monte Carlo Owner's Manual page 106

Speedometer/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 in kilometers
(used in Canada).
Your Chevrolet has a tamper-resistant odometer. If you
see silver lines between the numbers, you'll know
someone has probably tampered with it and the numbers
may not be correct.
You may wonder what happens if your vehicle needs a
new odometer installed. If the new one can be set to the
mileage total of the old odometer, then it that is what
will be done. If it can't, then it will be set at zero and a
label must be put
on
the driver's door to show the old
mileage reading when the new odometer was installed.
Trip Odometer
Your trip odometer tells how far you have driven since
you last reset
it.
To set it to zero, press the reset button.
Tachometer
3
4
2 \ \ " I
\
\
1, RPM
The tachometer
displays the engine
speed in thousands
of revolutions per
minute (rpm).
I
NOTICE:
Do not operate the engine with the tachometer in
the red area, or engine damage may occur.