Just today I noticed an indicator showing up on my dashboard. The indicator shows the passenger side of the car, and a little screw coming out of it. I grabbed the giant book of boredom (Car manual) and the indicator is one for checking the gas cap and says once the gas cap is seated properly the light will go out.
I reseated the gas cap making sure it clicked when I turned it, and drove the car for about 45 minutes (My drive back home), and the light has continued to stay lit. What seems strange is that the check engine light is not showing up, which I know typically happens if the gas cap is not on properly.
Is there a sensor somewhere in the car that will cause that 'check gas cap' light to come on, and if so is it something I could find and replace myself, or am I better off going to a shop?