Popcorn popping sound in rear of vehicle

[2021Telliowner]

We bought our 2021 Telluride SX, Nightfall edition, three weeks ago. We currently have a little over 600 miles on it. We went for a short road trip a couple of days ago, and about half way in we both heard something sounding like popcorn popping in the rear of the vehicle. It didn't happen at anytime before this trip. We pulled over and still heard the popping on the passenger side of the rear end, right above the exhaust system. It eventually stopped, we pulled back on the road, and it started popping again when we reached higher speeds. It doesn’t appear to happen at lower speeds. We made an appointment to have it looked at, but were wondering if anyone else has had this problem.

 

[blitt]

We bought our 2021 Telluride SX, Nightfall edition, three weeks ago. We currently have a little over 600 miles on it. We went for a short road trip a couple of days ago, and about half way in we both heard something sounding like popcorn popping in the rear of the vehicle. It didn't happen at anytime before this trip. We pulled over and still heard the popping on the passenger side of the rear end, right above the exhaust system. It eventually stopped, we pulled back on the road, and it started popping again when we reached higher speeds. It doesn’t appear to happen at lower speeds. We made an appointment to have it looked at, but were wondering if anyone else has had this problem.

Was the AC running?

 

[Tellthemride]

sounds like a loose plastic trim piece that flaps in the wind only at high speed?

 

[2021Telliowner]

sounds like a loose plastic trim piece that flaps in the wind only at high speed.

______________________________

 

[2021Telliowner]

It still popped once we stopped to check it out, in the passenger side rear panel. Definitely sounds more inside the frame.

 

[2021Telliowner]

Was the AC running?

Yes, but not on high.

 

[Tracy15610]

Having the same problem on our telluride, what was your issue? Did it get resolved?