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Looking over the wife’s 2017 Prius. 45 thousand miles. The tires are about 5/32 and are showing uneven wear on the inside of the tread both left and right sides. Looking at the service records the tires were rotated around 5000 miles ago and all show the same uneven wear. I am thinking the problem is in the front. I took the car was in for a state inspection at the dealer and after it was all said and done, the tech did not show any concern for the excessive negative camber wear on the paperwork. I questioned this and got the typical reply that they could do a wheel alignment. The tech said all ball joints, tie rods and struts were checked and good.
If this car was on my lift I would have concerns and relate these to the customer. I will check the front end over myself and am wondering if this is an issue Toyota does not want to address because of being under a warranted time frame that expired 5000 miles ago. Any one else see this issue?
 

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Don't get all carried away here.

Some cars come from the factory with the alignment off; who know exactly why.
Are you by any chance running higher than recommended pressures ?

I would spring for a "4 wheel" alignment and ask to see the numbers before and after.
And point out the abnormal wear before.
Whether or not it really indicates a problem depends partly on how BAD the wear is.

It could even be partly caused by the specific brand and model of tires that are on it.

At 45K miles, it is probably time for a new set anyway.
 

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Discussion Starter #3
While I was glad to have the car serviced at the dealer I do monthly checks ie tire pressures and fluids. I am one to follow the manufactures recommendations and kept the tires as such.
As I said before the wear has come on in the last 10,000 miles.
Seeing that the front lower control arm is fixed which will not allow for any camber adjustment there should be some indication of wear on the suspension that needs to be addressed.
Like I said before it struck me as odd that such an obvious problem was not bought to my attention by the tech.
Not being familiar with the car I was looking for insight if this was a typical problem with this model. I will check it out and if nothing is worn, I will have them check the alignment and see what they come up with.
 

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I have had the same issue on my 2017 prius actually. I have never actually run it on a higher pressure than the one recommended. A lot of specialists told me that it might be due to the negative camber actually. So, when I went to check it.. weeeell, even the guys at the service were kind of surprised. It was excessive negative camber, and they were like "how the hell are you running it at all?!" They have actually managed to find more issues, however the main cause of the uneven wear was the negative camber.
 
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