Don't want to confuse you as the gas peddle is the most common way of reseting the light but if that dont work some require being reset thru the radio.
Try the gas pedal again first, key on engine off, press the pedal all the way to the floor 3X within 5 seconds, the change oil light should flash after the 3rd time meaning it reset, if it dont then it didnt work.
If that don't work it may have to be reset thru the radio.
Turn the radio OFF then turn the key to the ACC. postion, hold the "Tune Disp" button untill "settings" is displsyed, then press the "Seek PType or the Seek PScan" to scroll up or down thru the menu. Stop on Oil Life, press "1Prev or 2Next" for the sub menu untill RESET is dislayed, press the "Tune Disp" button to reset, you should hear a chime to verify the rest and "DONE" will be dislayed, Then scoll thru untill you reach EXIT, press " Tune Disp" again. you should hear another chime to verify the Exit.
Odds are yours resets thru the gas pedal but just in case it doesnt thats how to do it thru the radio
Good Luck!