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The worry isn't just an annoying noise..... it is likely a symptom of parts gnashing or grinding, that shouldn't be.

Sigh. I can confirm today that the noise is nothing to do with the washer hose fluttering. I tied mine down with three 4" zip ties, really well. Last night I left the truck outside, so it would be cold in the morning (45 degrees). On a test drive, there was no noise for the first mile, but then...

Good idea. My service guy says there is no part#. He just ordered a whole new arm.

Another great test would be to temporarily remove the whole wiper arm. If the noise is gone, the problem would be pinned down.

Try this. At 70 mph, push the wiper button once. When the blade is down, you can really hear the air turbulence. You might also see te fluid hose fluttering, just a tiny bit, in the air stream. Google "windshield wiper fluid hose loose in Cybertruck". Turns out this has been noticed before. My...

Whenit is cold outside, the hose is harder, and makes more noise than when it is softer.

Folks, I may have figured it out. Check your fluid hose inside the big wiper blade. Mine was loose, and one little black clip was broken. The air flow comes across the vents in the wiper assembly, and the angle matters.... hence the left right difference. Make sure the hose can't catch the air...

Just be sure that it is also gone with cold(er) temperatures. Mine comes and goes, but more when cold. I actually thought it was gone a few months ago, but it was much warmer then.

So, it turns out blocking those gaps DID NOT fix the problem. I left the truck outside overnight, and it was quite a bit colder the next morning.... and the noise is back. Definitely worse in colder weather. So I still don't know how to fix it.

I did a further experiment. I took blue painter's tape, and taped the gaps between the frunk and front quarter panels. Now the noise is completely gone (my rubber seals weren't 100% closing the gap, I will have to get thicker ones).

So no, I did not try reducing the daylight running light bar gap.

I dont have a light bar.

Folks, I think I found the fix!!! This has been bugging me for more than a year. After I realized it wasn't bearings or coolant or pumps....it had to be air flow. The key was you would hear it going straight, or a right curve, but not on a left curve. So, what I did today was to add a rubber...

This is an old question. Cut a strip of pipe insulation, and place it in the gap between the truck bed and the tailgate. Problem solved.

That was the first thing I tried. Even after charging at home for an hour, it still persists. Nothing else wrong as far as I can tell.

Today, for first time ever, I began hearing this chromatic descending alert sound, every few minutes. No idea why.

Turns out I was wrong. It still has the problem. Notably, it goes away on a slow left turn, but is present on straight ahead or a right turn. I still suspect some air flow problem related to various gaps on the left side of the front of the vehicle. But I haven't yet tried plugging gaps with...

If a speed sensor on a wheel fails, multiple subsystems will all light up. I had that happen on my Model 3. Very easy to fix, but scary because so many things depend on it (stability control, traction control, etc, etc.)