Where is the air conditioner drain located 0n a 2007 Cadillac CTS?

On a 2007 Cadillac CTS, the air conditioner drain is typically located on the passenger side of the vehicle, near the firewall. It is a small rubber or plastic tube that allows condensate from the AC system to drain outside the vehicle. If you're having trouble finding it, you can look underneath the car while the AC is running to see if water is dripping from the drain tube.