flashing warning light on dash, similar to glow plug light bu with dots under it on 2009 Chevrolet Trailblazer

I have a chevrolet captiva 2009 2.0, and a warning light started to flash yesterday. It is in the same cluster as the parking brake, glow plug, & tailgate open. It has the same coil symbol as the glowplug but with dots underneath it. I cannot find anywhere what this means. I have driven my car today, and after 2 miles the light went off.

2 answers
If it lights up it is in the owners manual!
could be throttle control issues.ck owners manual to be sure