okay i am no expert but u have owner a chevy suburban previously. i believe it's a computer error. try and take it someplace where they can reset it. they should have done it where you got the work done. if they did then id say ur stuck looking at that dang light forever. better put a pic up! lol
Contact the Chevy Dealer's Service Dept near you. There is a precise sequence of steps to take to reset the light. An auto parts store, or auto repair shop should also have the information you need.