The last few days while driving to work I had this dash light come on. A quick online search shows it to be a glow plug indicator light, which they say is for diesel engines. But I have a 2002 Hyundai Elantra GLS with a 2.0 liter gas engine. Can anyone make sense out of this?

I am having trouble identifying one of my indicator lights. It's located near the gas gauge. Can someone please tell me what this is? Thank you!