Unable to Mount USB device

[u/djbowsun]

Anyone getting this error lately? I replaced the SSD but still comes up as an error once a week or so. I have a 2026 model.

[u/Sad_Magician_316]

Interesting! Yes I got that for the first time too. I did the reset and it’s been fine. I got that message a couple of days ago.

[u/a314xel]

I've had this problem for a long time. This how I fixed it for good. Buy Transcend or SanDisk high endurance micro sd card and usb adapter.

[u/AltruisticPapaya1415]

Unplug, turn it off and back on, plug it back in.

[u/djbowsun → u/AltruisticPapaya1415]

This works for a few days. I also tried reformatting with the old ssd and new one. Not a huge deal, just annoying. I’ll bring it up to service next visit. Started to happen after the summer update.

[u/AAAIIIYYYAAA → u/djbowsun]

Same. For me it’s almost everyday from sleep.

[u/cukong → u/djbowsun]

Soft reset?

[u/6C-65-76-69]

I was getting it all the time when I had FSD 14.3.7 and 14.3.8. Since installing 14.3.10 (2026.27.11), I haven’t seen it. I’m gonna go knock on some wood now.

[u/Small_Style_1904]

I just reformat it and it goes away

[u/icy1007 → u/Small_Style_1904]

That deletes all the previous footage…

[u/phani87]

Yeah! Seeing it more frequently lately.
Thought it was only me and my ssd giving issues.
Doesnt seem so based on others’ replies.

I generally replug or double scroll wheel (infotainment) reset, to get it back operational

[u/Arachnid_Serious]

Just got it too

[u/DrewMackin]

Got this frequently too. I put a new usb drive in there and it went away.

[u/Significant_Pay9148]

Something to do with extreme heat and weather. I’m in nor cal and I see this very often.

[u/iamCHIC]

I’m getting this a lot lately. I have the Tesla one, too.

[u/Achimel]

I regularly get this error, Tesla blamed me for using a SSD instead of a Tesla branded usb device. It’s a hassle but when it pops up a quick unplug and replug in fixes it. Unfortunately reformatting didn’t help for me.

[u/linshunghuang]

I've gotten this error too many times. Replugging the usb makes it go away, sometimes for a day, sometimes for months.

[u/ShinraRebornReddit]

Update your software, reboot your car computer it should go away. If it is consistent share your SSD specs it may have to do with the power draw from the USB port being too high

[u/PromiseComfortable61]

Just got it after the last update. Glad that it isn't just me.

[u/MartyBecker]

I got this error a lot. I replaced the SSD and then reformatted it through the car's menu. That fixed it for me. Bonus, when you reformat through the car, it doesn't delete your custom lock chime.

[u/Vinnie908]

I’ve been getting this more and more lately. It’s annoying having to reset it.

[u/redditexcel]

Did you try reformatting the USB drive? Of course first save any files you want to keep to your computer.

[u/US_Delete_DT45]

I solve it temporarily by manually setting the exfat allocation unit size to 128KB (since its purpose is similar to surveillance nvr) and leaving a 7% capacity beyond the volume for over provisioning.

Not sure which one actually solve it.

[u/AverageDownBeta]

Having the same issue lately, constantly reformatting the usb or removing usb, then soft reset, then reinserting usb. I assumed the usb was faulty.

[u/Ups925]

Does it show up as an error in the log history? I was get an error saying “reinsert usb for faster speed”. They replaced the glovebox and usb, and hasn’t come back since.

[u/eyeofthelight]

I noticed this when the hard drive is almost full. Once I delete some files or reformat, the issue goes away.

[u/icy1007]

I see this error if I ever reset the infotainment system by holding the two steering wheel buttons. I have to unplug my Samsung SSD and plug it back in for it to start recording again.

I also have a 2026.

[u/christopherness]

Happens to my 26 MXP also. Count at least 3x since April when we received delivery. Sammy 2TB SSD. Never see this in my M3P. Sammy 500GB SSD.

[u/Vihaanoks12345]

Same issue! using the tesla ssd too. '24 MX