At roughly how many miles or at what age do control arms require replacement?

I have a 2018 LS500 with 52,000 miles and assume they will need replacement but don’t know when they will likely need to be done.

 

I've never heard about failing control arms on the fifth gen LS, the fifth gen LS is not as crappy as the fourth gen, i replaced my control arms on my LS 600h at about 220.000 km's.
I think the LS 500(h) has much better arms.

 

For what it’s worth, my 2018 LS500 is at 97K miles and I haven’t had any alignment issues, suspension noises, or control arm problems. Everything is still tight and solid and feels the same as when I bought the car.

From my experience, 52K miles is still very early. These cars seem to hold up extremely well unless they’ve been abused, hit potholes hard, or had poor alignment history. Just keep an eye on tire wear and listen for clunks over bumps, but I wouldn’t assume control arms are anywhere near needing replacement.

 

52k miles sounds really early. What symptoms are you experiencing that’s causing you to say that?

 

No alignment issues, tire wear abnormalities nor noises. Just wanted to know what and when to expect such repairs in the future 20.000 miles.

 

Been driving for 64 years and don’t ever remember replacing a control arm. I may have had some bushings replaced, but don’t specifically recall doing so.
Is this a common problem with Lexus products?

 

Fortunately there aren’t any symptoms; I am just anticipating the need to replace wear and tear suspension related items as the car ages.

 

You are overthinking. This isn't a Jeep. Just drive it.