Take it back to the dealer. Only they can fix it if you only have only operating key. After the dealer gets you two working keys, you should consider buying an extra key (either from the dealer or on Ebay), having it cut and then program it yourself before you lose a key.
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2003 Almond GT AutoStick, body colored rear splash guards and hood struts, chrome gear shift, AC & vent knobs, billet steering wheel spokes and pedals, AMX1397 Turbo-Intake Pipe.
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