Lexus Troubleshooting Questions? Ask a Lexus Expert
how many miles on it?
How many miles do you go between tire rotation?
How many alignments in last 12 months have you had?
23,846 miles on the vehicle.
5,000 miles between rotations
no alignments and none recommended by Lexus service folks
There are only 3 reasons for all tires to wear out prematurely on the inside:
We can rule out the tire rotation as it is done well within recommended schedule. That leaves 2 other reasons.
Simple check for the struts/shocks. Push down on each corner of vehicle. It should go down once, rebound up and stop. If it goes down again and back up and stops, then the shock/strut is bad. I doubt that all 4 are bad with 23K miles on it, but go ahead and do this check.
If ok, as I suspect, then alignment is out. Most likely the camber. Camber is how the wheel sits on the vertical, either leaning in towards engine at the top, or leaning away from car at top. Generally when the camber is out, the vehicle wont pull so you wont know it, except by premature inner tire wear.
I dont know why car manufacturers never put this in their maintenance schedules, but all vehicles should have their alignment at least checked once every 6 months. this is because all it takes is hitting one pothole, going over railroad tracks fast, hitting one curb to knock it out of alignment.
There are no known issues with them, no recalls or tsbs(technical service bulletins. A good service department will recommend an alignment check(about $60) every 6 months. This way if alignment is knocked out it will be caught before premature wear on the tires.
The problem is that once a tires starts wearing prematurely, that wear pattern is established and no alignment will correct the wear pattern on the tires. That is why even thought a tire may have good center tread left, the tires will be recommended for replacement for inner tire wear as the alignment wont keep them from continuing to wear this way. This is why the alignment needs to be checked once every 6 monnths.
Inner tire wear usually wont show up for 10-15K, so somewhere in that area it should have first been noticed. Tires still would have needed to be replaced, but i consider this oversight on the tech's part.
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