1 year anniversary
06-20-17, 08:06 AM
#1
1 year anniversary
In a week or so, I will have had my NX for a full year. Overall, I"m really pleased with it, but there is 1 major issue that unless I can figure out how to fix, I'll change cars as soon as I can.
When I first got the NX, I noticed (and posted about) a cough or hesitation when going from an off throttle condition, to on throttle. It doesn't happen every time, but it will happen at least once or twice any time I drive the car more than a few miles. I initially thought it was me, because I was used to the annoying smoothness and drone of the CVT in my CT, but this isn't me. I've never had a 6 speed auto before, and maybe it's just slow deciding what gear it wants. I took it in at 5K miles, but I got the standard "unable to duplicate, no problem observed" answer that I always get when I need them to find an issue. In their defense, it is sporadic and difficult to reproduce on demand, however.
At this point, I'll give them one more chance to fix it before I give up and replace the car with something else. It is virtually impossible for me to drive this car smoothly, which drives me crazy and makes my wife car sick with the jerking around. Yes, it can be that bad. I figure I can adapt to almost anything, but this one has me stumped.
Has anyone else noticed this with their NX? If so, did it ever go away?
When I first got the NX, I noticed (and posted about) a cough or hesitation when going from an off throttle condition, to on throttle. It doesn't happen every time, but it will happen at least once or twice any time I drive the car more than a few miles. I initially thought it was me, because I was used to the annoying smoothness and drone of the CVT in my CT, but this isn't me. I've never had a 6 speed auto before, and maybe it's just slow deciding what gear it wants. I took it in at 5K miles, but I got the standard "unable to duplicate, no problem observed" answer that I always get when I need them to find an issue. In their defense, it is sporadic and difficult to reproduce on demand, however.
At this point, I'll give them one more chance to fix it before I give up and replace the car with something else. It is virtually impossible for me to drive this car smoothly, which drives me crazy and makes my wife car sick with the jerking around. Yes, it can be that bad. I figure I can adapt to almost anything, but this one has me stumped.
Has anyone else noticed this with their NX? If so, did it ever go away?
06-21-17, 12:37 AM
#2
Many of the drive train issues in the Turbo NX are overcome by placing it into Sport mode.There is a much more linear throttle response. Sport + is even better if you have it.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
06-21-17, 04:18 PM
#4
Many of the drive train issues in the Turbo NX are overcome by placing it into Sport mode.There is a much more linear throttle response. Sport + is even better if you have it.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
06-22-17, 08:36 PM
#5
The pursuit of F
woodrow, I think you're familiar with the turbo lag and hesitation which I won't emphasize, though I agree with the above posts that it is somewhat mitigated driving in the Sport setting.
However, when I had the NX, there was a fairly consistent scenario that added further unsettling hesitation. It's when applying heavy throttle on a turn (also from an off throttle position). What happens is the traction/stability systems are so aggressive that they cut power as it senses a risk in loss of traction. It then suddenly releases its hold in one or two "bursts" giving a less than smooth power delivery as you are exiting the corner. Of course, this has put me in a couple of close calls where I needed power to beat oncoming traffic and just came out ahead with some horns blowing my way. I found that driving in Manual, downshifting into the corner, (and Sport mode) helped deliver the power much closer to my expectations.
Another thing worth looking into is the Apexi Throttle Controller. I added it to my RC F and has significantly improved throttle response (yes, even on a big V8! ). Someone in the NX forum added it too and has stated improvement in response/reduction in lag. For $200, it might be worth a last attempt to re-ignite the spark (pun intended).
Good luck!
However, when I had the NX, there was a fairly consistent scenario that added further unsettling hesitation. It's when applying heavy throttle on a turn (also from an off throttle position). What happens is the traction/stability systems are so aggressive that they cut power as it senses a risk in loss of traction. It then suddenly releases its hold in one or two "bursts" giving a less than smooth power delivery as you are exiting the corner. Of course, this has put me in a couple of close calls where I needed power to beat oncoming traffic and just came out ahead with some horns blowing my way. I found that driving in Manual, downshifting into the corner, (and Sport mode) helped deliver the power much closer to my expectations.
Another thing worth looking into is the Apexi Throttle Controller. I added it to my RC F and has significantly improved throttle response (yes, even on a big V8! ). Someone in the NX forum added it too and has stated improvement in response/reduction in lag. For $200, it might be worth a last attempt to re-ignite the spark (pun intended).
Good luck!
06-23-17, 09:39 AM
#6
Many of the drive train issues in the Turbo NX are overcome by placing it into Sport mode.There is a much more linear throttle response. Sport + is even better if you have it.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
In normal or eco mode, the initial throttle response is dampened for fuel economy. In conjunction with the turbo lag I find the power can then come on unexpectedly.
It can't compare to the smoothness of a CT as the CVT and relatively low power make any jerky acceleration impossible.
Yes, put it in sport mode and it will take away the hesitation.
Historically, it's the drive-by-wire system more so than the turbo lag.
It's been present in the lexus cars b/c this complaint has been as early when I had my 99 GS300.
The best bet is to drive any NX and compare it.
06-23-17, 09:51 AM
#7
woodrow, I think you're familiar with the turbo lag and hesitation which I won't emphasize, though I agree with the above posts that it is somewhat mitigated driving in the Sport setting.
However, when I had the NX, there was a fairly consistent scenario that added further unsettling hesitation. It's when applying heavy throttle on a turn (also from an off throttle position). What happens is the traction/stability systems are so aggressive that they cut power as it senses a risk in loss of traction. It then suddenly releases its hold in one or two "bursts" giving a less than smooth power delivery as you are exiting the corner. Of course, this has put me in a couple of close calls where I needed power to beat oncoming traffic and just came out ahead with some horns blowing my way. I found that driving in Manual, downshifting into the corner, (and Sport mode) helped deliver the power much closer to my expectations.
Another thing worth looking into is the Apexi Throttle Controller. I added it to my RC F and has significantly improved throttle response (yes, even on a big V8! ). Someone in the NX forum added it too and has stated improvement in response/reduction in lag. For $200, it might be worth a last attempt to re-ignite the spark (pun intended).
Good luck!
However, when I had the NX, there was a fairly consistent scenario that added further unsettling hesitation. It's when applying heavy throttle on a turn (also from an off throttle position). What happens is the traction/stability systems are so aggressive that they cut power as it senses a risk in loss of traction. It then suddenly releases its hold in one or two "bursts" giving a less than smooth power delivery as you are exiting the corner. Of course, this has put me in a couple of close calls where I needed power to beat oncoming traffic and just came out ahead with some horns blowing my way. I found that driving in Manual, downshifting into the corner, (and Sport mode) helped deliver the power much closer to my expectations.
Another thing worth looking into is the Apexi Throttle Controller. I added it to my RC F and has significantly improved throttle response (yes, even on a big V8! ). Someone in the NX forum added it too and has stated improvement in response/reduction in lag. For $200, it might be worth a last attempt to re-ignite the spark (pun intended).
Good luck!
Thanks for the suggestions!
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06-23-17, 10:03 AM
#8
Unfortunately here in the US, lexus shafted us this option (S+)
Yes, put it in sport mode and it will take away the hesitation.
Historically, it's the drive-by-wire system more so than the turbo lag.
It's been present in the lexus cars b/c this complaint has been as early when I had my 99 GS300.
The best bet is to drive any NX and compare it.
Yes, put it in sport mode and it will take away the hesitation.
Historically, it's the drive-by-wire system more so than the turbo lag.
It's been present in the lexus cars b/c this complaint has been as early when I had my 99 GS300.
The best bet is to drive any NX and compare it.
Last edited by User 41924; 06-23-17 at 07:35 PM.
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