Hi Bombonzito06,
When the engine is not fully warmed up, the cold start system is working so the idling speed would be higher.
If the idling speed is high even after driving more than 20 minutes, there could be something that is causing it to act weird. Since vehicle is under warranty, it would be best checked by the dealer if you are worried.
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Sunday, December 6th, 2009 AT 5:55 AM