Chevrolet 1997 Astro Owner's Manual page 122

1. Find your location on the zone map. Note your
zone number.
2. Press and hold both the ON/OFF and the US/MET
switches. The display will go off.
3. After five seconds, VAR CAL will appear on the
display. When it does, release both buttons.
4. Press US/MET until your zone number appears on
5.
Press ON/OFF
to
enter your zone number. Your
the display.
variance is now set.
Sunglasses Storage Compartment
The console has a sunglasses storage compartment.
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