I just had mine in last week for oil change and inspection.....the Low Battery alert has not come on all winter or spring. Suddenly, Every time I get in the car, the red battery alert comes on before the engine is started. However, it then immediately disappears and does not even show the small red alert icon on the dash.

Anyone experienced this? Thanks for any input.

 

Sounds like the usual problem where the car doesn't shut down after something is plugged into the OBD port, although I haven't heard of it happening after a dealer visit.
Try disconnecting the battery for a few minutes and then hooking it back up.

 

I've had the problem every time after a dealer visit. The disconnect only has to be for 10-15 seconds.