Last post on Oct 20, 2012 at 9:08 AM
You are in the Lexus RX 400h
What is this discussion about?
Lexus RX 400h, Tires, Wheels, Hybrid Cars, SUV
#4 of 53 Re: Tire wear and wind noise [vdoc]
Mar 31, 2006 (2:57 pm)
The tires could be causing the noise. I've experienced this after rotating unevenly worn tires from the back to the front on other cars. If you do a Google search for tire roar, you will find many complaints of uneven tire wear on the front tires of 350Zs causing tire roar. If you do a Google search for tire noise, you will find info on that neglecting tire rotation on FWD vehicles can cause uneven wear and tire noise or humming. Cross switching the front tires to the rear may lessen your tire noise.
#5 of 53 Tire Pressure
Oct 30, 2006 (8:13 am)
I am just curious what other peoples tires and pressure are on their 400h.
Michelan 235/55R18 99V 38 PSI is what mine is at. After driving it home from the dealership I found the front tires at 37 and the back tires at 38 so I just inflated the front tires to match. I noticed that the recommended PSI on the door is 30 and that the max PSI on the wall of the tire is 44.
I am looking to squeak out as much MPG as I can but do not want to overinflate the tires.
#6 of 53 Re: Tire Pressure [straub]
Oct 30, 2006 (11:20 am)
Lexus ships the 400h from Japan with high pressure to avoid flat spots on the tire. The dealer is supposed to reduce the pressure to between 32 and 34 at delivery. Mine came with the pressure at 44. I called the dealer, and they are the one's who recommended 32 to 34.
#7 of 53 after tire changing service?
Oct 31, 2006 (1:52 pm)
Does the 2006 model not hv the tire pressure monitor system?
The 2007 does and frankly, after reading it, maybe wishes I didn't have it.
Something about after changing to new tires and take it back to Lexus for hook up (?) which probably means $$ out of my pocket.
Can someone shed some light to this?
#8 of 53 Re: after tire changing service? [ravlegend]
Oct 31, 2006 (2:22 pm)
2006 400h did not come with tire pressure monitor. Not sure why it didn't since all other 2006 Lexus models did come with it.
#9 of 53 Lexus 400h Tire and lousy service at Pohanka Chantilly
Nov 19, 2006 (1:59 pm)
We have taken our vehicle as specified by manufacture recommendations and at 10,000 miles the tires were rotated. Since then there has been a terrible shimmy and vibration up thru the steering wheel. It is not constant but enough to be very irritating. We have told the service people immediately about this and on subsquent maintence visits we hear the same line "you need new tires". How is it that this started immediately after the tires were rotated at 10K service?
Now we are at 30,000 miles maintence. The shimming and vibration is even worse now than it has been ever. Guess what the lexus service is saying - ..."you need new tires." How is it this is ONLY a tire problem and not an alignment or steering problem since it has been going on since 10,000 miles on vehicle?How is it a $51,000 car has tires which only last for 10,000 miles.
#10 of 53 Seems a long rotation interval
by PFFlyer@Edmunds HOST
Nov 20, 2006 (5:11 am)
I've always done rotations between 5000 and 6000 miles. Any longer than that and you can start to get unsual wear. And when you rotate worn tires, you CAN suddenly get unusal vibrations andnoises with the worn tires in a new location.
#11 of 53 Re: Lexus 400h Tire and lousy service at Pohanka Chantilly [drsluggo]
by PFFlyer@Edmunds HOST
Nov 21, 2006 (11:07 am)
Just did a little follow up with a friend of mine who owns and operates and independent tire shop/garage. Not only is 10,000 miles far too long between rotations, he also tells me Lexus' tend to eat tires in his experience, AND Lexus puts "performance" tires on their vehicles which are going to have a practical lifetime of 25-30,000 miles.
So I think what got your attention was something that makes sense. Go too long without rotating tires and the wear on tires causes unusual sounds and sensations when they get moved to different wheel locations.
My gut is telling me that tires will eliminate your shimmy and vibration. Your tire choice is probably going to have to be a tradeoff involving performance, ride comfort/noise, and expected tread life.
I'll try to stop in and see my buddy tomorrow and see what kind of options he'd advise for replacement tires!
#12 of 53 New tires @ 26K?
Jul 15, 2008 (3:35 am)
Have a RX 400h with 26K. I have 50/50 mix of driving around town and highway usage. Have car always serviced at dealer at recommended intervals. Only isuue during this period was a small mention on the 10K service report suggesting front end alignment might be needed at next service. Ask about this and they said wait for next tire rotation at 5 K and the tires should even out. Nothing mentioned at the 15K service. Then at 20K service when I mention an annoying and worsening tire noise at 50+ MPH they then tell me the tires are wearing unevenly and I will need new tires soon. I compained and they were supposed to follow-up with tech dept and call me back. I didn't hear from them and got busy myself and didn't call to pester. (bad me) Yesterday at 25K service it's official, I need new tires and the dealer says 25-30K is all that can be expected on tires for this model. Can anyone tell me why the RX 400 gets such short tire life? Also they say I need front end alignment and this is always done with new tires - this is news to me.
#13 of 53 Re: New tires @ 26K? [melodyw]
Jul 15, 2008 (10:48 am)
I bought an '07 400h in May of last year. It had Goodyear tires. I rotated the tires every 5,000 miles. At around 15,000 miles, the tires started making excessive noise. I first took it to an independent shop where I normally get the oil changed and tires rotated. They said that the tires were "cupping" on the inside and would only get worse. I took it to the local Lexus dealer (not where I bought it) and after proof that I had rotated the tires at proper intervals, agreed to provide 2 free tires (Michelins) if I bought 2 and had it aligned. I agreed. Problem solved. I suspect that the vehicle had been out of alignment from the beginning. The "code" on my invoice indicated that the tire replacement was "goodwill". A lesson learned is that even with the purchase of a new car, it is probably wise to get an alignment right away. I ordinarily get 50 to 60 thousand miles on tires because I keep them inflated to 35 psi and have a rotation every 5,000 miles.