Rear tires wear out super fast on AWD Cybertruck, could it be FSD?

[CTOWannabe]

Had a dangerous event on my 2025 CT. I left on a road trip on 1/1 with about 6000 miles on the odometer. I checked the wear on the tires at the time and wear seemed normal and even on all 4 tires.

After about 4000 miles on the trip I checked and the rears had worn bald! I used fsd over 90% of the driving on the trip, and before that I had used it only maybe 30% of the time.

I crawled back from a reststop at 55mph to Vegas service center. In that 47 miles it had worn one tire down to the belts!

The dealer says because they see I have applied 100% power on several occassions (what Tesla owner hasn’t) that I need to pay for 2 tire replacement. I don’t mind or care about paying, but what freighters me is (at least preliminarily) they think that is the cause and no way is that the cause. I have not peeled out in the car and even if dove fast all the time, that wouldn’t explain this huge disparity in rear tire wear in such a short time—no way could such disparate wear even with high speed highway driving be a normal expected outcome. Particularly since I drove more aggressively the first 6000 miles which experienced even wear, than the almost total fsd driving during the last 4000 miles of the trip which experienced crazy high wear on the rear tires.

To me it says something like the alignment or somehow dragging the rears or maybe a wobble in rear wheel steer would be necessary to effectively have sanded the rears so thoroughly down. My concern is if they are not curious to figure it out and I still have 2000+ miles to go to finish the trip.

I got at the service center and that was their preliminary finding as they were closing so my hope is that perhaps the techs didn’t want to jump to any conclusions that close to closing. I was told they would investigate more in the morning.

I’ll post some pictures of the wear below. I searched around and did see this thread that seems unresolved.

TLDR curious if anyone has had a similar experience and determined what may be the cause of such extreme disparity in wear of the rear tires?

Thanks!

(Photos in next post below)

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[CTOWannabe]

Rear right tire before 47 mile drive at 55mph back to service center

Rear right tire after 47 miles at 55 mph back to dealer (You can now see steel bands worn through)

Rear left tire

Front left tire

Front right tire

 

[Ziggy Stardust]

Maybe it was a bad tire batch and you just got the unlucky draw for 2 of them. Or like you said something is really going on with the rear drives and causing premature wear.

But that is just not normal even for cheap tires after the few miles you put on them.

 

[SCTesla]

My AT tires lasted 40k miles and didn't look like that with some 100% pulls and 96% FSD usage.

 

[Jhodgesatmb]

I have 30K on my original tires. I have taken 6 long distance trips where I used FSD 90+% of the time. It must be something else.

 

[Travis64]

Why would you buy the same tires again?
Get the wildpeaks the oem tire is trash and get a alignment

 

[CyberT]

Wow that is bad. Push back against the SC to thoroughly test the truck before returning it.

 

[SlegMD]

Do you know your tire depth prior? You said you checked, or was it a glance? Not making assumptions but that wear is… excessive.

 

[CTOWannabe]

Do you know your tire depth prior? You said you checked, or was it a glance? Not making assumptions but that wear is… excessive.

it was 6/7 all around. The front at ar now 5/6.

 

[henchman24]

I would say your fronts have excessive wear for ~10k mi too. Your alignment needs checked. I highly doubt FSD impacts it, but at a glance it looks like the alignment is off. It also looks like your tire pressures were too high. Still, something is off for that sort of wear at the mileage stated.

 

[pricedm]

Yes it's FSD. Freakin' Speed Demon.

 

[CTOWannabe]

I would say your fronts have excessive wear for ~10k mi too. Your alignment needs checked. I highly doubt FSD impacts it, but at a glance it looks like the alignment is off. It also looks like your tire pressures were too high. Still, something is off for that sort of wear at the mileage stated.

My pressures were around 45 cold on parts of the trip in the mountains but we didn’t do too many miles there and was not going quick around there.

you may be right on the fronts but those are at least in the realm of reasonable.
Thanks much for your thoughts.

 

[henchman24]

My pressures were around 45 cold on parts of the trip in the mountains but we didn’t do too many miles there and was not going quick around there.

you may be right on the fronts but those are at least in the realm of reasonable.
Thanks much for your thoughts.

I'm just looking at the wear pattern. When the center is that much more worn than the shoulders, that's too much pressure. It certainly isn't the only issue you're facing there, but a factor.

 

[CTOWannabe]

Tech notes:
“Technician inspected the vehicle and confirmed that the two rear tires were worn out. The tire wore evenly with no signs of abnormal wear. The tires will wear faster with environmental conditions as well as with more aggressive driving styles. Please keep in mind the weight of the vehicle will also cause faster tire wear. The tires were replaced and balanced to spec.”



It’s weird, their analysis seems to be just because the wear is even’ish left to right and alignment might not be needed, they feel wear is normal. That just seems a wrong conclusion to justify the uneven wear front to back. I fear something else is causing it.

I guess one thing to do is drive this 100% fsd the 2000 miles back and watch the wear. If it goes the same way it will be proof, but this seems like a weird experiment for the owner to conduct and not to check for other variables.

Hmm just got a text from service that he’s talking to the techs so maybe there is more info to come.

 

[Cyber AI]

FSD always runs rough even driving on chill. I only use FSD when I am travelling long distances.

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