Wait a minute... What did they flash? (There are many "computers" in these cars) The keys are programmed in the RF Hub, and shouldnt have required flashing the ECM/TCM to reprogram keys. UNLESS your custom tune was somehow interfering with the CAN bus, in which case that may have been the source of the problem in the first case...Ok so I just paid the dealer for pairing the keys with the car. It has an appt to be towed to a performance shop to fix. Dealer had to flash computer to pair keys so I wonder if the tune is still there.