[AT] OT- Late model chevy truck question

[WF Smith]

I have a 2005 Chevy pickup which is a story unto itself. Driving down the
interstate last weekend it tells me the gas cap is loose. I didn't want to
pull over so 150 miles later when I got off I tightened the cap, which was
right about the time the check engine light came on, and has stayed on. Can
I reset this light by disconnecting the battery or do I have to pay the
dealer to plug it in and tell me I shoulda pulled over on the interstate?
This truck has 1600 miles on it and is perfect in every way except that it
isn't my 2001 F250 Super Duty.

Thanks,
Warren
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