Hesitation problem at various speeds (TSB info post #159)
#1621
On a different note, is there something we can do to bring this issue to the attention of Lexus or maybe even the NHTSA? Given how widespread this issue is and the fact that there's been 1600 posts on this thread about this issue, is there something we can do as a collective?
Not everyone find the hesitation a problem, it depends on driving style and/or the terrain so Lexus only update the software as requested by customers.
#1622
Driver School Candidate
Join Date: Feb 2014
Location: ny
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
I am desperate and will try anything. Do you know where I can find step by step instructions on how to disconnect the battery? I am useless when it comes to this stuff so the more detailed the instruction, the better. Thanks.
#1623
Driver School Candidate
Join Date: Feb 2014
Location: ny
Posts: 34
Likes: 0
Received 0 Likes
on
0 Posts
I noticed something interesting recently. I've been using Costco regular gas in the past but just switched to Shell yesterday. There was a marked improvement in the hesitation issue. Felt better throttle response, shifting, and power delivery. Wanted to share in case someone want to try switching gas.
On a different note, is there something we can do to bring this issue to the attention of Lexus or maybe even the NHTSA? Given how widespread this issue is and the fact that there's been 1600 posts on this thread about this issue, is there something we can do as a collective?
On a different note, is there something we can do to bring this issue to the attention of Lexus or maybe even the NHTSA? Given how widespread this issue is and the fact that there's been 1600 posts on this thread about this issue, is there something we can do as a collective?
#1624
Driver School Candidate
Fuel Quality
#1625
#1626
Instructor
Good information, but the guy's hand gestures drive me nuts! Ray A.
#1627
#1628
I have a 2017 Base with the towing prep pkg. I used to have several gears that had hard downshifts in both normal and sport modes along with auto mode and auto stick mode. There was some sort of vacuum hose TSB for the 2016’s. That they did for me and it fixed all but one. My 6 to 5 downshift is still very bad. It’s at least controllable in auto stick mode but not while in total auto mode. Not safe when you don’t know it’s going to be a hard downshift when slowing down and or while possibly in a turn. Have complained many times. Dealer says it’s ok. The other dealer out of town said don’t drive the car hard it’s not meant to be driven that way. Lexus dont get me started.
#1629
I am a new member and first time Lexus owner of the 2016 RX 350. I am finding a real hesitation issue with my car. I took it into the dealer and after several days told me it is working as it should?
Am I the only one with this problem? Please let me know if anyone else has it. I am in conversation with Lexus HQ about this issue.
Am I the only one with this problem? Please let me know if anyone else has it. I am in conversation with Lexus HQ about this issue.
The dealer could be right. I said the exact same thing about my car when I first got it. TBH, I think OEM put in that slight lag. I bought Pedal Commander to offset the throttle body response. I have not regretted since
#1631
Driver School Candidate
Join Date: Aug 2020
Location: WA
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
What pedal commander model you purchased? I'm thinking to try this out. My 2017 RX was having exact same issue with hestitation and gear shifting issues. Brought it in to a few local Lexus dealers multiple times and had TSB done, but no luck. Almost at a point of selling it. Thanks
#1632
What pedal commander model you purchased? I'm thinking to try this out. My 2017 RX was having exact same issue with hestitation and gear shifting issues. Brought it in to a few local Lexus dealers multiple times and had TSB done, but no luck. Almost at a point of selling it. Thanks
#1633
Pedal Commander has zero effect on the transmission gear-hunting issue. It only provides a means of adjusting the throttle responsiveness when you press the accelerator. I use it because I like a little brisker response than the factory setting.
#1634
Does it make a noticeable difference while in Sport or Sport+ mode? I have tried neither Pedal Commander nor Sprint Booster so I am ignorant on this subject.
#1635
I use Sport+ all the time, but I do not have a comparison of Sport+ pre-Pedal Commander vs. Sport+ with Pedal Commander. What is very noticeable is the "lag", or lack thereof, in the throttle response when you press the accelerator pedal. I forget the number of possible settings -- seems like it is 32, or some two-digit number like that. If you set it too aggressively, the throttle gets "twitchy" -- not nice, especially rounding corners. So I had to experiment for awhile and find the balance point where I get immediate, but not twitchy, response to a press of the accelerator. I wasn't happy with the laggy (to me) response of the factory throttle setting. Not sure everyone cares about stuff like that -- the Pedal Commander is not cheap and probably not worth it to anyone who is already satisfied with their car.
The following users liked this post:
eddie420 (05-29-21)