What would cause the cruise control in an 03 alero to stop working? Checked all the fuses and they are fine and you can turn it on and the light comes on it, but it won't lock in the speed.
I don't know about your particular car, but on an s-10 I used to have, the cruise control was controled by a vac hose. Turned out that the vac hose had dry rotted and was leaking not allowing the cruise to hold.