I have a 2003 Yukon XL SLT with the digital climate control display. As I turn the knob to change the temperature the numbers are very sporadic. For example: temp is set on 60 and I want to switch to heat. As I turn the knob clockwise the display goes 60-61-62-63-62-63-62-63-64-65-66-64-65-64-65....and so on. It does this in both directions, whether I'm increasing or decreasing temperature. Just curious if anyone else has this problem. It's not like the HVAC doesn't function...this is just mildly annoying.