Take car to a qualified mechanic and have it inspected. The AC system especially.
You may have to spend a $100 bucks but if AC system has major problems, you can be looking at $1500 or more to repair.
If seller does not want you to do this, do not buy the car, unless seller agrees to a 6 month warranty (in writing), or agrees to get AC repaired.
As far as Onstar, call them (Onstar) and ask about an upgrade or if it is even necessary.
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Wednesday, July 22nd, 2009 AT 8:19 AM