My 2019 Civic EX-L has a rattle that appears to come from either the dash area or the center console area where the gear shifter is located. This happens around 60 degrees F. If the temperature is too cold or too hot, this sound disappears. Typical this sound comes between 0 - 15 miles/hour speed. Sometimes I have heard this sound at 45-50 miles/hour, but this is rare. The sound starts to come when I start my car (temperature appropriate) and put it in the Reverse gear, going back to neutral the sound disappears.
I have taken my car to a Honda dealer 7-8 times, they have not been able to fix this issue. They have opened the dash area and tried to see if there is evidence of mechanical movement, and have put dampening material inside the dash. Nothing has helped so far.

Sound recording
Has anyone seen this issue? Or any idea what/how to diagnose/fix this?

Thanks!

 

Sounds like a vibration.

 

Most times rattle comes without vibration.

How can figure this out and have my car fixed before it runs out of warranty? (end of year, but issue does not happen in summer)

 

Vibration ... LOL.
Does the sound disappear if you turn off the HVAC fan?
Does it disappear if you turn on the fan?
Could it be a leaf stuck in the front fresh air intake vents?
Have you tried changing the air flow to different vents?

 

Hey smart guy. Are vibrations without noise? Most rattles are from vibrations.
Keep after me and you will get responses from me.

 

Still being that wood block?
Have got no sense of humor?
Live long and prosper?

 

Humor? You mean to tell me all the idiotic stuff you post is supposed to be funny? Seems you like sending people down those rabbit trails.

 

- no difference if the fan is on/off
- this issue has been present for the last 18 months, so no leaf

 

It's a vibration that occurs at a certain range of speed and temperature. Something in your dash is expanding and or contracting and it changes shape enough to rub. Your only fix may be to replace the entire dash. I doubt seriously it could be the frame.

 

The dealer has opened the dash 3-4 and tried to reinforce anything which can vibrate. This is my frustration. Car has 20k miles and this sound has been coming since 5k milkes.