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Found 1 result

  1. I recently lost some radio/cd/nav/hard drive unit functionality (no output to nav touchscreen, unable to access music on hard drive, CD player not working) in my 2009 CTS. I replaced the entire unit (GM part # 25979736 with an identical unit from another 2009 CTS, and it displays the expected "locked" message on my touchscreen. I took it to my local dealer to have it unlocked but they were not successful. The report from the service technician stated that he: (1) verified communication with the radio through the diagnostic port, (2) programmed the radio with the latest calibrations (radio did not unlock), and (3) attempted to reset the radio manually (radio did not unlock). The report then stated I would need a new unit, and that the VIN burn for this radio is "one-time only". Has anyone ever heard of this or experienced a similar problem? Or should I assume the service technician didn't know the proper procedure to unlock the radio? My understanding is that I should be able to unlock it myself if I have access to a GM Tech2 scan tool. Has anyone ever unlocked this particular radio from the 2009 CTS or had one unlocked by the dealer? It doesn't sound plausible to me that GM would make a part that can't be reprogrammed or relearn the VIN for another vehicle.