Service engine light on 2002 Saturn SL

Service light came on after filling my car with gas. I checked the gas cap, but so far light still on. Will I have to return to the repair shop, so they can reset it?

Asked by for the 2002 Saturn SL
You need a computer scan. The light won't go out on it's own
for befor several ignition cycles. After the scan, the light can be turned
1 more answer
my ignition light is blinking after i put gas in it what is worng with it could you help please