Hesitation problem at various speeds (TSB info post #159)
#451
Driver School Candidate
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Your car has the same problem as mine and many others on this site. Lexus has been stone walling on this issue and I am getting ready to file a Lemon Law complaint.
I think we might have to join together in a class action suite against Lexus. I have been trying to get this problem fixed for six months. Lexus says a fix is coming but it never
comes. There is something wrong with many of these RX 2016 transmission. It is very frustrating that Lexus is build on this infallible reputation and yet are willing to risk
that reputation by not recognizing this problem and fixing it. A recall ala Volkswagen will be quite damaging in stock price and reputation. Better to recognize the problem
and fix it they stick their heads in the sand.
I think we might have to join together in a class action suite against Lexus. I have been trying to get this problem fixed for six months. Lexus says a fix is coming but it never
comes. There is something wrong with many of these RX 2016 transmission. It is very frustrating that Lexus is build on this infallible reputation and yet are willing to risk
that reputation by not recognizing this problem and fixing it. A recall ala Volkswagen will be quite damaging in stock price and reputation. Better to recognize the problem
and fix it they stick their heads in the sand.
#452
![Default](https://www.clublexus.com/forums/images/icons/icon1.gif)
Your car has the same problem as mine and many others on this site. Lexus has been stone walling on this issue and I am getting ready to file a Lemon Law complaint.
I think we might have to join together in a class action suite against Lexus. I have been trying to get this problem fixed for six months. Lexus says a fix is coming but it never
comes. There is something wrong with many of these RX 2016 transmission. It is very frustrating that Lexus is build on this infallible reputation and yet are willing to risk
that reputation by not recognizing this problem and fixing it. A recall ala Volkswagen will be quite damaging in stock price and reputation. Better to recognize the problem
and fix it they stick their heads in the sand.
I think we might have to join together in a class action suite against Lexus. I have been trying to get this problem fixed for six months. Lexus says a fix is coming but it never
comes. There is something wrong with many of these RX 2016 transmission. It is very frustrating that Lexus is build on this infallible reputation and yet are willing to risk
that reputation by not recognizing this problem and fixing it. A recall ala Volkswagen will be quite damaging in stock price and reputation. Better to recognize the problem
and fix it they stick their heads in the sand.
#453
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Agreed this whole powertrain is a joke, between horrible shifting characteristics, vibration and drone I cant wait to get rid of this thing.
Lexus is without a doubt the wrost vehicle I have ever owned, and I have owned a lot of new cars. I think a class action law suite needs to be the next step.
Count me in....
Lexus is without a doubt the wrost vehicle I have ever owned, and I have owned a lot of new cars. I think a class action law suite needs to be the next step.
Count me in....
#454
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Premium gas came up earlier in this thread and for some time I thought it made a difference only to see the hesitation come back. For kicks, I went back to premium for the last two tanks, and the shifting and hesitation during acceleration are much improved. not 100% but it's noticeably better this time around. Will see if it continues. Anyone else see the hesitation improve with premium gas?
#455
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I notice a difference from tank to tank and it doesn't matter what grade I am using. I can fill up with Premium and it runs questionably. Then fill up again with the same fuel from the same place and it runs great. Same for regular fuel as well. Vehicle seems to be sensitive to various tanks of fuel. Been running great for weeks and boom, fill up and it doesn't run as well. Next tank back to great.
#456
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Since new I have always had a rough/buzzy idle. I switched to 93oct. a couple of months ago and the idle has been rock solid. I did notice some improved performance and better gas mileage. The hesitation issue is really sporadic. At time it recacts fine and others I get a couple of second delay before a down shift occurs. I have minimized the drone by driving the vehicle in manual almost all of the time now. I strat in 4th which is the default and hold the gears out to about 2500rpm. When I come aroud a corner I downshift back to 4th and no drone. This transmission is certainly capable of smooth shifts, they just have the programming all wrong. I no its all about fuel economy but I havent seen any real change in gas mileage. Still averaging 24mpg.
#457
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I have minimized the drone by driving the vehicle in manual almost all of the time now. I start in 4th which is the default and hold the gears out to about 2500rpm. When I come around a corner I downshift back to 4th and no drone. This transmission is certainly capable of smooth shifts, they just have the programming all wrong. I no its all about fuel economy but I havent seen any real change in gas mileage. Still averaging 24mpg.
#458
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I have been following this thread for months. My wife's 16' RX350 F Sports just got back from the dealer with the following comments; " Was able to duplicate rocking / shudder feeling, slight hesitation felt at times. Advise customer to use premium fuel as well as sport mode to eliminate shudder / rocking feeling. Lexus is currently working on calibrations for these issues".
The above comments are from a Lexus FTS. Does anybody else have documentation of the problem and has anybody requested the vehicle be bought back?
The above comments are from a Lexus FTS. Does anybody else have documentation of the problem and has anybody requested the vehicle be bought back?
#459
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I have been following this thread for months. My wife's 16' RX350 F Sports just got back from the dealer with the following comments; " Was able to duplicate rocking / shudder feeling, slight hesitation felt at times. Advise customer to use premium fuel as well as sport mode to eliminate shudder / rocking feeling. Lexus is currently working on calibrations for these issues".
The above comments are from a Lexus FTS. Does anybody else have documentation of the problem and has anybody requested the vehicle be bought back?
The above comments are from a Lexus FTS. Does anybody else have documentation of the problem and has anybody requested the vehicle be bought back?
As as for my premium gas experience, I'm sad to report that it's back to crappy on my 4th tank. It really seems random when it happens but man does this tranny like 4th gear. Car quickly shifts to 4 before most cars touch 2nd gear!
Last edited by s4iscool; 07-07-17 at 07:45 AM.
#460
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TSB was done back around April time frame. Dealer has verified twice it took.
Lexus flew in a FTS to look at car last month, he is the one that noted the issues on last report.
I'm personally done with the car and wondering if anybody else has documentation from the dealer agreeing there is an issue?
Lexus flew in a FTS to look at car last month, he is the one that noted the issues on last report.
I'm personally done with the car and wondering if anybody else has documentation from the dealer agreeing there is an issue?
#461
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Honestly, I can live with the hesitation. Its the vibration felt through the floorboards thats driving me nuts. Its been warm so I have been using the AC and that is just compounding the problem. This engine does not like to be under any kind of load under 2k rpms.
Worst case scenario is slowing down turning a corner going up an incline with AC on, the engine vibrates and buzzes like a chainsaw.
I know I sound like a broken record just never experienced this kind of issue with any other manufacture. Lexus you truly lost my business, cant believe I have had so much better experience with Chevy and Dodge. You know the old saying, fool me ounce!!!!!!!!!
Anyone on the edge of purchasing this vehicle should really think twice. If you get one with this issue there is no fix. Lexus will just tell you its normal unless of course you like to gamble with your hard earned money..
Worst case scenario is slowing down turning a corner going up an incline with AC on, the engine vibrates and buzzes like a chainsaw.
I know I sound like a broken record just never experienced this kind of issue with any other manufacture. Lexus you truly lost my business, cant believe I have had so much better experience with Chevy and Dodge. You know the old saying, fool me ounce!!!!!!!!!
Anyone on the edge of purchasing this vehicle should really think twice. If you get one with this issue there is no fix. Lexus will just tell you its normal unless of course you like to gamble with your hard earned money..
Last edited by tdjacw; 07-07-17 at 02:43 PM.
#462
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My hesitation is minimal, if any, but I have been trying the sport mode and sport+. Getting used to the touchy accelerator in these modes, but it totally eliminates any hesitation. I have not noticed any significant decrease in mpg. I still drive kind of conservatively so maybe that's why? In normal mode I think they still need to tweak it a bit. It's just a little dumbed down. If you drive extremely slow and come to full and complete stops it works fine. But any kind of spirited driving (and we're not talking race mode) it's just a little slow for me.
Last edited by FastFord; 07-11-17 at 03:27 PM.
#463
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I have a 2017 RX350 that was purchased in January 2017. I really noticed an issue in February when climbing a hill from a dead stop. The transmission has always wanted to upshift very quickly from day one (I suppose for LEXUS to meet EPA numbers), but it REALLY wanted to continue to upshift before even getting to 1500RPM on hills. It was very sluggish and I really had to step on the gas pedal to get it to down shift and get me up the hill. Anything cruising above 40MPH doesn't seem to be an issue. Like others have stated on the previous 400+ posts, the 8 speed transmission is terrible at upshifting in ECO, slightly better in NORMAL, and feels substantially like a 6 speed RX Generation 3 model in SPORT with much quicker acceleration from a dead stop. I didn't really see it as a safety issue until I was on the interstate the other day and was going to pass someone in the left lane from the right lane. The vehicle hesitated for 2 seconds prior to getting enough power to accelerate. That was certainly a game changer.
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?
Last edited by tester220; 07-13-17 at 03:30 PM. Reason: Typo
#464
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I have a 2017 RX350 that was purchased in January 2017. I really noticed an issue in February when climbing a hill from a dead stop. The transmission has always wanted to upshift very quickly from day one (I suppose for LEXUS to meet EPA numbers), but it REALLY wanted to continue to upshift before even getting to 1500RPM on hills. It was very sluggish and I really had to step on the gas pedal to get it to down shift and get me up the hill. Anything cruising above 40MPH doesn't seem to be an issue. Like others have stated on the previous 400+ posts, the 8 speed transmission is terrible at upshifting in ECO, slightly better in NORMAL, and feels substantially like a 6 speed RX Generation 3 model in SPORT with much quicker acceleration from a dead stop. I didn't really see it as a safety issue until I was on the interstate the other day and was going to pass someone in the left lane from the right lane. The vehicle hesitated for 2 seconds prior to getting enough power to accelerate. That was certainly a game changer.
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?
I had the same experience on the highway when passing, at least a 2sec delay. Very hard to diagnose because it doesn't react this way all the time but I'm not taking any chances with the safety of my famlly.
#465
Lexus Champion
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I have a 2017 RX350 that was purchased in January 2017. I really noticed an issue in February when climbing a hill from a dead stop. The transmission has always wanted to upshift very quickly from day one (I suppose for LEXUS to meet EPA numbers), but it REALLY wanted to continue to upshift before even getting to 1500RPM on hills. It was very sluggish and I really had to step on the gas pedal to get it to down shift and get me up the hill. Anything cruising above 40MPH doesn't seem to be an issue. Like others have stated on the previous 400+ posts, the 8 speed transmission is terrible at upshifting in ECO, slightly better in NORMAL, and feels substantially like a 6 speed RX Generation 3 model in SPORT with much quicker acceleration from a dead stop. I didn't really see it as a safety issue until I was on the interstate the other day and was going to pass someone in the left lane from the right lane. The vehicle hesitated for 2 seconds prior to getting enough power to accelerate. That was certainly a game changer.
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?
I will be taking it to the dealer service department soon. This is an issue that can be difficult to describe to a service technician even on a test drive. What is the best way to describe the behavior to the dealer for those that have had success in dealing with service departments on this issue?