Bought my GC Altitude Nov 4th. Remote start always worked fine. Yesterday I noticed twice at two different times it shut off after a few seconds. Today started it, went out a minute or two later and it was off again. All doors were shut and locked. Made sure it was locks and tried to start again and beeped once and would not start. Any ideas? It really sucks cause winter finally showed up and it's been in the teens at night.