I am so glad you asked about this.. it was next on my list.When you turn on the car and start driving, neither the "interior/recirculate" button is on nor the "exterior" air button is on..... so which one does it use if you don't click one and they both remain unchecked?
I have the LT2, so this is my first car since 1989 that doesn't have Auto Climate Control. It was the only feature that I would have wanted that wasn't available. And when you've had it for some 20 years, it takes some getting used to.A few thoughts about this--
One of my main reasons for buying an LTZ (as opposed to an LT or LS) was the Automatic Climate Control (ACC). I've had it on my last four GM vehicles and had come to really enjoy being able to set a temperature and forget about it. In my wife's car--and in other cars with manual systems--I found I was always fiddling with the controls and I enjoy not having to worry about that in my Malibu.
Mine works just like I expected it to. Although the book says the A/C compressor is inoperative below 40 degrees, in actual practice I've found that it will run whenever the outside temperature is above 35 or so. The reason the A/C compressor runs--besides its primary purpose of cooling the car on hot days--is to dry the air, and in the winter that's a useful feature, at least to me. Even when the ACC is in full auto mode, you can always override it by pressing the A/C button (but a small gripe is that, if you do override it, it will be back on following the next ignition cycle--my previous cars would "remember" your setting).
One of my favorite things about the ACC is that on cold days, the heater doesn't come on (blowing cold air) until the engine warms up enough to heat the air. Then it gradually comes up to whatever speed necessary to warm the cabin. I think that's cool (er, warm).
Yes, I experienced this tonight in my 2010 LTZ while driving home (over 70 miles) in the rain. What a pain! We had to continually keep regulating the temp by rolling down the windows. Let's hope the dealer can fix this ASAP as it's suppose to rain all week.Anyone on this thread ever had problems with their climate control system? Mine (2005 Maxx) has gone completely haywire, keeps reverting to full-on hot air no matter where I set the controls on auto or manual, and I have no clue what's wrong with the system. Neither do the"mechanics" at muy local dealer...
Dan in MD
Well that would depend on the temperature you have the system set at. If it's set at 75 and it's 35 outside, you shouldn't get A/C unless there's a sensor problem. Once the car approaches the set temperature, the air will cool down to maintain that temperature and it should warm up again as the car cools down. I have the LT2, so I don't have the Auto Climate Control. But all my previous cars did have it and I thought it worked great, especially in the winter. It always kept the car at a comfortable temperture and I liked the sunload sensor which keeps it a bit cooler by the upper vents to compensate for the heat from the sun.I'm a control freak and like to manually set it anyways, but I agree the full auto mode seems inconsistent when I have tried to use it. We're just getting into Spring here in MN and whenever I tried the Auto mode it would turn the A/C on in the middle of butt-cold MN winter...I didn't like it and basically just stopped using it.