Pontiac 2004 Bonneville - Manual (Page 191)

Choosing Your Zone Number
Locate your zone number on the map. If your number is
different than the one shown when you turn the key
on, follow the steps to change your zone number.
If you live on the line, you can pick the zone area you
are most likely to drive in. In Alaska, use Zone 9 or 10.
In Hawaii, use Zone 7.
Changing Your Zone Number
1. Press MODE to display COMPASS CALIBRATION.
2. Press SELECT to display RESET CHANGES ZONE.
3. Press RESET until your number appears.
4. Press MODE to exit the COMPASS CALIBRATION
MODE and store the new zone number. When the
MODE button is pressed, the DIC will return to
the VEHICLE DATA mode.
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