New Here. Hello to everyone. I have used this forum in the past to repair and fix my 02 trailblazer lt. Now i have a question of own. I have the automatic (digital) twin thermostats for the cabin HVAC. My display reads both inside and outside temps. I couple of days ago I noticed that the caution ice warning light/alarm was coming on. I looked down at my temp gauge and the temp was 32 degrees and dropping fast. It hit about 5 degrees before coming back up to 58 degrees. Which was pretty close to outside temp. Has this happened to anyone out there. The AC and Heat work fine inside the car. I have noticed also pooling of water on the ground when parked after driving for awhile.