I feel our 2010 height control kick in at 65mph and maybe again at speed above 80mph? The one at 65mph is definite, the 80mph may be my imagination. Does the 65mph adjustment feel pretty substantial? I've had our LX for about 3 1/2 years now and recently had to get my air suspension replaced under warranty, but I feel like the movement at 65mph is more noticeable than I remember. Wondering if I need to take it back to the dealership to make sure everything is in spec..?

I assume the 65mph movement is for aerodynamics,but I really wish this was an option I could permanently disable. Seems like unnecessary wear and tear to me. I always turn it off when driving around town but once you get on the highway there doesn't seem to be anything preventing it from turning on.

 

Never felt that on my 2011 or 2015

 

I have owned many LX units and never felt it raise as I was driving. The only changes I felt were when exiting the highway when it goes back to the default height.

 

This is my experience

 

 

Wow. Glad I posted this. It is very noticeable on our 2010. I will take it to the dealer and keep everyone posted. Thank you,

 

Yup, my 2013 does it too. There is a big hill (maybe say 10% grade over 2 miles long) on way to office. The air suspension dramatically trys to compensate (level itself) going down the hill but does nothing going up. It reminds
me of being in a helicopter hitting air pockets, you literally feel your stomach move up and down. The vehicle does two dramatic leveling adjustments before getting to bottom of hill. My LX470 never did this over same hill.
Dealer again says there is no problems and no adjustments that can be made to software. If this was my Range Rover doing this and the dealer told me same I could swallow it as the RR uses mechanical servo arms to figure
out auto leveling. But the LX uses a computer to adjust air ride level. Whats worse is that the LX570 will only adjust front to back. I once had two heavy passengers and the vehicle leaned to passenger side so bad that the pull
of the steering wheel was noticeable.

 

The suspension / AHC is all hydraulic, not air.

The LX470 simply looks at the speed of the truck and all it does is move from low to normal once you start moving, and high to normal if you get out of low range with the transfer case lever.

The LX series uses a mechanical arm connected to a potentiometer to tell the ecu the current height. One on each side of the front suspension, and a single one on the rear as it's a straight axle.

 

Your correct Hankinid, forgot I once changed out the suspension fluid of my LX470....had RR on my brain. To answer another quest/reply on this thread, yes my LX570 will do this crazy low rider like suspension adjusting at any speed. At 85 mph with gusty winds it's
near white knuckle driving.

 

 

Here is the chart for speed sensitivity

 

Can you elaborate on what the problem was and what they replaced? While the LX470 was a bit more problematic at high miles, the 200 series hydraulic system has shown to be supremely durable, with few issues reported.

Thanks...

 

I'm taking the truck in Friday and will post the results once I get it back. Overall, I just feel like the height adjustment during driving speeds (highway) is more "harsh" or "severe" or "noticeable" than it was in the past. We bought our LX about 3 1/2 years ago. Last summer, the hydraulic system was leaking and was replaced. I recently started feeling like the height adjustment felt different so I'm taking it in to make sure everything is still in spec and get this documented while it is still under CPO for another 25k miles or so.

 

Perhaps thats because the 100 series goes back around 10 years before the 200 series existed.


How often was the AH fluid changed in the 3-1/2 years you've owned the truck? Toyota says every 60K, many owners cut that in half.

 

We've put about 40k miles on the truck since we bought it- I don't recall ever doing it at my Toyota shop where I get it serviced. However, I'm 99% sure it got changed when they replaced the hydraulic system that was leaking over the summer. I'll have to check the paperwork to make sure. If not, I will see if they bring that up when I take it in Friday. I have to take it to a Lexus dealer (not my Toyota dealer) for this particular issue (and it's covered under CPO) - this same Lexus dealer tried to hose me about 7 years ago on some un-needed service on my LS which is how I ended up at Toyota. In short, I don't have confidence that these guys are "advising" me as much as they're selling me on something. So I have to be strategic in what I ask them and how I go about it.

Out of curiosity, and to further prove I have no mechanical inclination, why would "old" fluid potentially be to blame for what I'm reporting? Thanks for the suggestion.