Sounds like you key needs to be relearned onto your car, just take it to any smart main dealers, they can do it easily, but it is not cheap, unless you talk nice to them
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.