If you need to reset your Chevy climate control, there are a few different methods you can try. First, if your vehicle has the Automatic Climate Control feature, you can press the recirculation button for three seconds. This will turn off all the vents and then turn them back on again, resetting the system. If this doesn't work, or if your vehicle doesn't have Automatic Climate Control, you can also try turning off the engine and then restarting it. This will often reset the system and allow you to start fresh. Finally, if neither of these methods works, you may need to take your vehicle to a dealership or mechanic to have them look at it and reset the system for you.