* Replace the window switch: This is the most straightforward solution. You can purchase a replacement switch relatively inexpensively from auto parts stores (online or brick-and-mortar) or junkyards. Installation is usually fairly simple, involving removing the door panel to access the switch. Look up a YouTube video specific to your year and model for a visual guide.
* Temporary Fix (Not Recommended): You *could* try bypassing the switch by directly connecting the window motor wires, but this is extremely dangerous and not recommended unless you're very experienced with car electrical systems. Incorrect connections could damage the motor, the wiring, or even cause a short circuit. Even with the correct connections, the window will likely operate only in one direction (up or down) without any control.
* Professional Help: If you're not comfortable with car repairs, taking your Monte Carlo to a mechanic is the safest and most reliable option. They can diagnose the problem and perform the necessary repair.
In short: Replacing the switch is the best and safest approach. Avoid attempting any direct wiring unless you are very familiar with automotive electrical systems and have the proper tools and safety precautions in place.
