Yeah aerodynamics is creating high pressure and fighting to relieve it. Favorite option is to open the sliding rear window at least 1/2 way open, and it’ll take care of the pressure relief.I have an 2018 RTL E with sunroof. When either the sunroof is open or a window is open there is horrible buffering. Is this a common problem and is there a cure?
I feel/hear the same thing in our Ridgeline as well as in my wife’s Lexus NX200T. Most vehicles I’ve had with rear seat and windows has done the same thing. I’m told that if you open the rear sliding window, then open a rear seat window it’s ok. I haven’t tried that, I rarely open any windows while driving.My wife and I was driving back from her hair appointment. She wanted some fresh air and started to lower her window when she realized the wind was messing up her hair. She put her window back up and asked me to open just the rear windows. When i did she said "what is that noise? A flat tire?" The truck was vibrating badly so i slowed down, checked the tire pressure on the instrument cluster, it was good. Feels like driving on a washboard dirt road. As I started to speed up again the noise got louder (very similar noise to a flat, flapping noise) and the truck vibration got worse. I closed the rear windows to get cab quieter to try and figure out where the noise was coming from, and the noise quit and the vibration stopped. Really? Started lowering the rear windows again, noise and vibration came back. No window visors or other modifications other than a hood protector. When windows are closed, no problems. Seems like wind turbulence but from the amount of noise and vibration, something is amiss. Anyone else experience this?
No it's a weird buffeting you get if you open just the rear windows at highway speed. If you crack the rear slider, or the sunroof, or a front window it stops and if you're on the highway at speed and start feeling hot the AC works really well.Might be cause by the Active Noise Cancellation (ANC) system trying to quiet the wind turbulence.
Correct. All a matter of aerodynamics. Even a name for it: Helmholtz Resonance.. . . It's not unique to the Ridgeline.
That’s likely because the Ford was so loud all the time, you didn’t notice the resonance when you opened the rear windows. >Thank you for replies. I had an F150 Supercrew before this and never experienced anything more than just more road noise. Relief to know as we are going on a 10 to 11 hour trip soon.
I never saw this before on any older car but my relative's newer Lexus and this Ridgeline.Correct. All a matter of aerodynamics. Even a name for it: Helmholtz Resonance.