Dorman 599-218 Front HVAC 🔧 Control Module for Chevrolet, GMC, Pontiac Models Review

I was looking for a product at Dorman and was given a part number. I have a truck with an extended cab. It still came with an air selector button on the back. There was only a back button in the box or a dimmed install button. I just didn't like that the button is there now. It also turns my AC on when the speed knob is in the off position. You need to turn on the fan speed, then turn off the air conditioner, then turn the fan off again. Or switch on the clutch of the air conditioning while…

Just a note for buyers. The center button that controls the air distribution works, but not like an OEM controller. Clicking on the front vents normally mixes the air from the front and bottom vents. In this case, one click and everything goes down. It doesn't mix output between zones! Typical Chinese fakes, they look good but there is always something missing.

If you replace this with a 1999 or 2001 Chevy or Gmc it will work but a little different and different. What I mean is that when the recirculation button is selected, the compressor runs regardless of whether the Ac light is on or off. In a way it's better to run the compressor with the heater on as it won't fog up your windows like it did with the old design that didn't dry. Air if convection was on. All of these things have been tested by both GM and Dorman's engineering department. FYI all…

It worked well. My original worked, except for the backlight on the top (handle) of the control unit. I tolerated that for a while, but eventually I got angry. It was easy to install. Pulled the dash bezel out (helps turn on the ignition and engage the auto transmission selector (truck doesn't work). Then there are two screws, and you pinch these little tabs above and below each screw so they slide out. Two harness connectors... and the old one came out. The new one goes in reverse. I checked…

This controller is pretty much plug and play. I damaged my old one trying to solder new bulbs which blew on the board. All my fault. I chose this product as a replacement based on the cheapness, compatibility, and the fact that the defrost button can be changed to a spacebar. Actually, if you want to bother, you can replace your old bezel with a new case, but I don't mind if I have a button that I know doesn't work. Maybe one day I'll get a spare glass with a defroster in it. The grips were a…