Got the same issue here on my 2016 Tahoe. Maybe because of the painted XM antenna caps? I see other trucks using a black cap while mine is painted. Should be a recall on this. Very frustrating.
Anyone else experiencing any issues with the rear AC zone not producing colder air when set to LO? Local dealer said it was operating as normal. My 2011 Denali didn't have this issue. An infrared thermometer is reading 10 degrees warmer than set.
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