Key/Ignition Security System preventing vehicle from starting


Asked by Sep 19, 2016 at 03:08 PM about the 2003 Buick Rendezvous

Question type: Maintenance & Repair

Got a new ignition cylinder installed (key had become frozen in old one). The old key still workedd fine. But, rather than program the NEW key, the dealer just gave me the NEW key and the instructions: "Put OLD Key in, turn it, take out; Put NEW Key in, turn it, Take it out; Put NEW Key in again, Start the car"

But, rather than start the car, the car now is dead in the driveway.  How do/can I reset the security system to allow me to just simply start the car again.  Help!

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