3rd row hvac vents not blowing air.

Jonlerd

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Aug 4, 2025
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Gravity Grand Touring
Hello all. Just wondering incase it was wsomething basic I missed. Have a late July build GGT. I have 2 cars seats installed in the 3rd row. Seats do not seam to have any electrical sensors from what I can see except for seat belts. But when my boys are in their car seats after a hot day. We can’t seem to get any air to flow from the vents. I have confirmed that they are open and the back HVAC screens are on in every conceivable combination. Was thinking it was occupancy based but sat in there with seat belts buckled and still no air. This is the case for both sides. Thanks in advance if anyone had the same issue or in the same boat?
 
Hello all. Just wondering incase it was wsomething basic I missed. Have a late July build GGT. I have 2 cars seats installed in the 3rd row. Seats do not seam to have any electrical sensors from what I can see except for seat belts. But when my boys are in their car seats after a hot day. We can’t seem to get any air to flow from the vents. I have confirmed that they are open and the back HVAC screens are on in every conceivable combination. Was thinking it was occupancy based but sat in there with seat belts buckled and still no air. This is the case for both sides. Thanks in advance if anyone had the same issue or in the same boat?
That’s odd, as I specifically tested this in my test drive gravity and the 3rd row vents worked great if I was sitting back there as long as rear climate was turned on in the HVAC controls. If your rear climate is turned on and the vents are not closed and the kids are sitting back there with no air flow but the second row is getting airflow from second row vents then I’d text service.
 
Hello all. Just wondering incase it was wsomething basic I missed. Have a late July build GGT. I have 2 cars seats installed in the 3rd row. Seats do not seam to have any electrical sensors from what I can see except for seat belts. But when my boys are in their car seats after a hot day. We can’t seem to get any air to flow from the vents. I have confirmed that they are open and the back HVAC screens are on in every conceivable combination. Was thinking it was occupancy based but sat in there with seat belts buckled and still no air. This is the case for both sides. Thanks in advance if anyone had the same issue or in the same boat?
test it without car seats. My car seats sit OVER the sensors in the seats so it looks like no one is in the chair.
 
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