[RIP]

Try this only if your A/C is working:

Climate Control System Calibration
"Turn on the blower. Simultaneously push the top and bottom wiper buttons on the left side of the climate control panel for 5 seconds. All the lights on the panel will light up. Then two lights on the left side will alternately flash for about two minutes and you'll hear the ventilation modes cycle. When just the top light on the left side slowly flashes push that button and you're done. All lights should be out and you should be back to normal. This is the climate control calibration test and it resets the climate control system computer."