Originally Posted by
spoolboy
I had a fob battery getting low and it would cause a message to be displayed in the cluster "KEY FOB BATTERY LOW" or something like that. The remote start still worked even when this was displaying. I doubt it's the fob battery, but they're cheap and easy to replace.
It's probably not related to the tune - but in theory could have been related to the unlocked PCM that was installed to allow for tuning. If it worked when that was originally installed, but does not work now, I doubt that is it.
You could always try putting the stock PCM back in (car won't run well without your current tune) and see if the fob works again.