knob missing heater controls
13 year old car no longer made. Stop by any GM dealer and see if they might have a knob left in a dusty corner of the warehouse. Search junkyards and Ebay if that doesn’t work.
The knobs are still available new from GM, p/n 9380265. Verify p/n with dealer before ordering.
Advance, Autozone and others sell generic knobs
Why are you guys trying to find a knob? That poor sentence states the heater control is missing. Or maybe they are just separated and the knob is getting lonely.