You think that's true? My unit is acting up, rebooting constantly. Pioneer told me it's because of the parking brake bypass- the software caught up with it or something. So I sent it in to them to fix. You think it's true what they told me?

No its not true. Never tell them you have it bypassed or they will use that excuse to stop trying to figure out what the real problem is. The bypass has no ill affects on the unit unless you horribly screw it up. You likely just cost yourself a couple of hundred dollars by saying something about the bypass.