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Lexus RX 350 Driving Experiences and Problems



  • ateixeiraateixeira Posts: 72,587
    I imagine it's engaging the rear axle, so it would likely be normal for there to be some additional drag.
  • kyfdxkyfdx Posts: 64,724
    Snow mode might not necessarily be for driving in the snow (at least, not at speed)..

    It might keep the transmission in 2nd gear, when starting from rest (to avoid slippage), along with some other changes...

    Most AWD vehicles work just fine in snow, when left in normal drive.. Unless you have extremely adverse conditions, I wouldn't mess with it, especially while under way...

    I'd also check the owner's manual, to see what is says about snow mode..



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  • wwestwwest Posts: 10,706
    Since the advent of DBW throttles many vehicles with "snow" mode automatically change the response "curve", gain, of the throttle plate position in response to the gas pedal position.

    You initially had the gas pedal depressed enough to get 35MPH but then you switched to the "lower gain", shallower throttle response curve, snow mode, and therefore needed a deeper depression to attain, sustain, the same roadspeed.

  • nit2nit2 Posts: 40
    edited March 2012
    Thanks to everyone that responded. The explanations and suggestions make sense. Very helpful!
  • aamixyaamixy Posts: 69
    edited March 2012
    Got my 2012 RX350 in early Feb. Now it has 400miles on it. Yesterday I was driving back home from work. I remember there was a moment when I lifted my foot on the gas pedal trying to reduce the gas and slow the vehicle down a little due to the traffic, I noticed the tachometer surged up to 5k for less than a second and dropped. Didn't remember if the car accelerated or not. Anyone have user experience like this? Hopefully it was only my illusion!
  • ateixeiraateixeira Posts: 72,587
    Did the transmission shift down a gear? Could be blipping the throttle for a smoother shift. I do this with manual transmissions.
  • wwestwwest Posts: 10,706
    edited March 2012
    It sounds as if you may have been accelerating, even ever so slightly, just prior to lifting the accelerator pedal.

    Since about '08 the engine/transaxle control ECU firmware monitors the rate at which you lift pressure from the gas pedal. A quick/sharp lift and the system will "think" you wish to make use of engine compression braking. Slow and easy and it will "think" you wish to enter "cruise" mode and upshift accordingly. In the previous case the ECU would not normally command a downshift unless the period of costdown is extended and the ECU puts the system in FULL fuel cut coastdown mode.

    The purpose in all this is to accommodate the situation wherein you want a brief period of engine compression braking followed quickly by a return to acceleration. Therefore DO NOT wish an upshift (as if entering cruise) and thereby incur the 1-2 second downshift delay when you relatively soon, or even quickly, re-apply pressure to the accelerator.
  • 2012rx3502012rx350 Posts: 10
    Have a 2012 RX 350

    Has any one noticed that the sat radio sounds completely different from the regular radio, and not in a good way?

    I have owed over 4 cars now with factory installed sat radios and have a old personal portable sat radio, none of them have sounded like this.

    My 2012 RX has the nav and premium sound. The regular FM sounds great. It is clear, loud, good sound quality, The CD sounds great, as does the USB.

    The Sat though is soft even on the highest setting and it does not sound like it is in stereo. The sound is flat so much so that I refuse to listen to it. Only talk radio sounds good on it.

    I checked all the settings bass, mid, dsp ect.. all the same.

    I even brought it back to my dealer twice and they said it sounds like every other RX.

    Well I had an es for a loaner while they looked in to this and it sounded great!

    My reply to them was so every SAT radio in an RX sounds like S@#T!
  • navionavio Posts: 8
    Hi for me it was the quality reputation but I definitely do not like the way the rx drives. Not like a german car it takes way more effort. Dealers say the car is designed to follow crown of road which basically means you are working much harder to drive the vehicle, just an FYI-guaranteed teh Audi will drive much better
  • ateixeiraateixeira Posts: 72,587
    I was just in Jamaica, mon, and saw a right-hand drive Harrier. Pretty funny.
  • honkalahonkala Posts: 2
    Hi guys - I'm new to the forum here and I wanted to get some input. I purchased a certified pre-owned RX350 about a year ago - it came with a 100K warranty and I also had the warranty extended another 45K, I think.

    Last week the interior rear-view mirror broke off while my wife was driving to work. She had to hold the mirror with her right hand while driving because the mirror was still attached to the compass/gps cable.

    It looks like the entire windshield will need to be replaced to fix this problem - there is a sizeable chip in the windshield where the mirror attaches. My question is this: should the dealership cover the replacement cost of this 100%. I never had the windshield replaced since purchasing the vehicle. I figure the dealership certified the vehicle for sale and they should stand behind their warranty. Also, we didn't bump or abuse the mirror in any way.

    The dealership offered a 50/50 split, but I want them to cover this 100%. It's not like I'm asking them to replace a cracked windshield due to rocks or road debris.


  • wwestwwest Posts: 10,706
    The dealer is probably very well aware of the actual circumstances that lead to the mirror breaking off the windshield....someone forced it beyond the travel/swivel limit.

    Comsider yourself lucky.
  • ateixeiraateixeira Posts: 72,587
    I would ask a windshield shop if they can do a repair. As long as it's a chip and not a crack that could spread, they have advanced repair techniques and may be able to save it.

    Try these guys:
  • ateixeiraateixeira Posts: 72,587
    That is perhaps the least helpful post in the history of Thank you very little.
  • wwestwwest Posts: 10,706
    Okay, maybe I can, should, do better.

    When this happened to me, for the exact reason/cause I stated above, I simply used the standard windshield attachment glue to glue the mirror base, along with the attached glass chips, back into the "crater" left in the windshield.

    That was more than 2 years ago and it still holds.
  • honkalahonkala Posts: 2
    Hi guys - just wanted to give an update on this. I was contacted by the service rep at the dealership and they've agreed to pay for the replacement windshield 100%. It took a bit of persistence and a lengthy e-mail to the general manager of the dealership, but they came through for me. I may very well be a repeat customer to Coliseum Lexus of Oakland in the future.

    Thanks for the input to the post.


  • steverstever Posts: 52,572
    Have to say I'm a bit surprised so good for you (and for Coliseum).

    Feel free to write a review about your experience in the Dealer Ratings section. Good dealers don't get enough props. Thanks!
  • ateixeiraateixeira Posts: 72,587
    Much better. :shades:
  • vicki54vicki54 Posts: 1
    twice tonight all 4 windows and the moonroof opened as I was getting out of my car, 2010 Lexus R450h. What caused this? I have a dealer installed remote start, but I was not pressing any buttons on my remote.
  • wwestwwest Posts: 10,706
    Butt "dialing"...
  • ang33iefang33ief Posts: 57
    Just bough a 2011 RX350 with 10K, seems to ide;; a little rough could it be that it needs prem. or will it run ok with regular??
  • sltpigsflysltpigsfly Posts: 16
    I have a 2011 RX350 that I purchased new in July of 2011. The dealer said that using regular gas was not a problem. I've used both types with no noticeable difference in gas mileage or performance between the two. The car never runs rough. I get 22-27 mpg.
  • wwestwwest Posts: 10,706
    Compression ratios, octane ratings, only matter with FULL cylinder fills, WOT. If you don't often use WOT then the MPG difference will be negligable.
  • ws3ws3 Posts: 3
    I have a 2010 RX 350, with a mileage of about 10,000. Last July, when I had the second complementary service, oil leakage of the left rear strut was found and it was replaced. Starting from the last winter, I began to hear clunking noise from the right side when I drove on the small inclined surface. After traveling to two dealers several times, I was told that the right front strut required replacement. After both services, there were no wheel alignments.

    After visiting several websites, I learned to check up the oil leakage of strut and found that the right rear strut is leaking too.

    Does anybody know what causes these problems? Are they just bad parts or other potential problems underlied? Any thoughts?
  • rxnewbierxnewbie Posts: 1
    We just got the car a week ago and my husband who wears size 11.5 shoes noticed that his foot is getting caught like 40% of the time he is driving when he switches from accelerator to brake pedal. i dont have a problem coz my feet are smaller. we've been to the dealership 2x because of this and seems like they cant do anything about it. we wrote lexus and reported the problem. anybody else experiencing this? we never had a problem with our toyota and honda cars before..
  • jjjzzzjjjzzz Posts: 13
    Hi is your hatch problem resolved? Mine is doing the same thing, a 2007 RX 350. Indeed it is very annoying.
  • wwestwwest Posts: 10,706
    Caught behind the brake pedal, or...?
  • longo2longo2 Posts: 347
    edited May 2013
    I just read through your comments on the Lexus AWD systems and from what I read between the lines, it would seem the new Honda SH-AWD system or any off the rack Subaru beats the Lexus system for traction and real AWD.

    There's a Youtube video of several different AWD system vehicles trying to get up a steep dirt hill and, while the choice of tires, driver skill etc are up for debate, the Subaru system scurried up and over the hill without so much as a momentary wheel spin..the FWD biased AWD based systems were pathetic and went nowhere.

    One other thing, the very few You Tube videos of any Lexus RX AWD's in the snow and climbing hills are rather disturbing. One RX AWD tries to get up a little snowy hill, can't, the camera cuts away and the next view is the RX going some other direction, away from the bottom of the hill.

    Some other videos of RX's being pulled out of trouble and that's about it for demonstrations of the Toyota AWD system.

    2010 Acura Winter Test Experience
    TheTempleofVTEC TheTempleofVTEC·52 videos
    Like 236 Dislike 54

    Uploaded on Feb 8, 2010

    Acura's SH-AWD System is put through its paces (alongside Audi's Quattro AWD, BMW's xDrive, Infiniti's Intelligent AWD, and Lexus' Active Torque Control AWD systems) at AET (Auto Enviro Testing) proving grounds in Baudette, MN.

    NOTE: All of the crossovers shown were equipped with the base OEM tires. The silver TL SH-AWD 6MT was equipped with Michelin Alpin snow tires, and the dark colored TL SH-AWD shown later in the video was equipped with standard OEM all-season tires.

    (and no I don't own a Subaru, or for that matter a Lexus) but I am shopping for one anyway.
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