Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
OK, first of all, don't punch in any more codes, you can lock up the radio permanently donig that.
Press and hold 2 and 3 on the radio for about six seconds, until it gives you a number code. Write those number down, then press AM/FM, and it will give you different number. Write those down, too, then give me all of those numbers, and I'll get you an unlock code.