Before doing anything else, isolate and unhook the
Battery Cable from its negative terminal. After two minutes, the air bag system will be safe to work on. To remove any chance of accidental air bag activation, you need to be sure to disable the system using this method only. After that, take out the center bezel from the instrument panel and put it on a workbench. When that's done, remove the four screws holding the A/C-heater control in place and align the control with the hole in the instrument panel center bezel.