Unfortunately the 2011 - 17 Jeep Grand Cherokee is not certified for use with our tents. Our fit team has found that the location of the factory rail / track is in an area of the roof that is not structurally support. Our testing found that under load of the tent and occupants the roof is likely to dent.
More information on how to evaluate if a vehicle can be used with a tent click here
For fit information click here
If you still have questions, you can contact support here, or by phone at 888-925-4621 M-F from 7 to 4 PT