My 2004 doesn't have that keypad. I bet it's simply for the phone service to make outbound calls. Now you need to speak the numbers and I can see (believe it or not) that being confusing for some, since when Onstar gets a number wrong you need to know to say "clear" to redo the last number.
I personally don't have a need for Onstar and would have liked to use that little part of the dash for something else. A storage slot for maps and stuff would be more useful.
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H2 '04 Black
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