Title: cylinder lock malfunctions
Review: I own both the original unbreakable autolock (with the flat key) and the autolock pro (with the round key). The original autolock never failed to open after 10+ years of use on two cars. The autolock pro failed to open after about two years of light use. This is not a key problem, because I could not open it with two original keys. I eventually wiggled the lock a lot to open it. I recommend that you stick with the original autolock if you wish to use this kind of security device.
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