2009 Saturn Aura "batt fob key low mean" Questions

What is the alarm key fob batt low mean, or talking about on my 2007 saturn aura I guess I would put a new battery in my door lock remote if I were you.

...batt leads off for 10 minutes then reconnected. The engine turns over but will not fire up.. it doesn't even try to fire (like when there is a slight problem such as low on gas and the car nearly ...