Have 2013 SRX which I purchased new. Since owning the indicator in the passenger, right side, mirror show warning of vehicle in blind spot. Not all the time but enough to be irritating. Have had it to dealer and service tells me this is something that is happening and they can't fix it. Is anyone else having the same problem? I keep the sensor cleaned off by that doesn't help. Driver side, left side, never does this. Can anyone shed some light on this?