Originally Posted by xxx350L

The first incident of this problem was reported to Lexus, by me in person, on August 8, 2019. They did not try to replicate, and proceeded to address the hesitation issue with a computer re-flash. No change. I’ll be talking to Lexus again soon. Thank you for your response.

Originally Posted by GRJFER

Not sure where you are located, but I would also report it to https://www.nhtsa.gov/

Originally Posted by Aeon

Attached is the 9/26/19 revised/updated TSB. Don't know if it contains actual ECU remapping optimizations based on feedback or just updated coverage information. Print this out and give it to your service advisor. Mine claimed there were no "recalls" and the master technician had to inform him the TSB are different from recalls.


I had the TSB done and oh boy the normal mode now drives like sport mode. It's amazing. The gears are shifting so smoothly. I don't think it's placebo either because with the loaner NX300 I was given I thought to myself "this is how gears should shift."


And remember to take a ton of photos before sending your car away. I was too trusting thinking these guys deal with Lexuses everyday and that they must be super careful but nope. There's now a 2 inch scratch on my rear bumper, deep enough that I can see the dark plastic. The SA said he'll forward the issue to the customer relations and the service manager and I'll hear back by Monday or Tuesday since they don't work weekends. The funny thing is I have a $600 dual channel dashcam with $400 in backup batteries but I disconnected it to be nice and to give them privacy while they worked. I'm a goddamn moron.

Originally Posted by Aeon

Attached is the 9/26/19 revised/updated TSB. Don't know if it contains actual ECU remapping optimizations based on feedback or just updated coverage information. Print this out and give it to your service advisor. Mine claimed there were no "recalls" and the master technician had to inform him the TSB are different from recalls.


I had the TSB done and oh boy the normal mode now drives like sport mode. It's amazing. The gears are shifting so smoothly. I don't think it's placebo either because with the loaner NX300 I was given I thought to myself "this is how gears should shift."


And remember to take a ton of photos before sending your car away. I was too trusting thinking these guys deal with Lexuses everyday and that they must be super careful but nope. There's now a 2 inch scratch on my rear bumper, deep enough that I can see the dark plastic. The SA said he'll forward the issue to the customer relations and the service manager and I'll hear back by Monday or Tuesday since they don't work weekends. The funny thing is I have a $600 dual channel dashcam with $400 in backup batteries but I disconnected it to be nice and to give them privacy while they worked. I'm a goddamn moron.

Originally Posted by Aeon

Attached is the 9/26/19 revised/updated TSB. Don't know if it contains actual ECU remapping optimizations based on feedback or just updated coverage information. Print this out and give it to your service advisor. Mine claimed there were no "recalls" and the master technician had to inform him the TSB are different from recalls.


I had the TSB done and oh boy the normal mode now drives like sport mode. It's amazing. The gears are shifting so smoothly. I don't think it's placebo either because with the loaner NX300 I was given I thought to myself "this is how gears should shift."


And remember to take a ton of photos before sending your car away. I was too trusting thinking these guys deal with Lexuses everyday and that they must be super careful but nope. There's now a 2 inch scratch on my rear bumper, deep enough that I can see the dark plastic. The SA said he'll forward the issue to the customer relations and the service manager and I'll hear back by Monday or Tuesday since they don't work weekends. The funny thing is I have a $600 dual channel dashcam with $400 in backup batteries but I disconnected it to be nice and to give them privacy while they worked. I'm a goddamn moron.

Originally Posted by Aeon

Attached is the 9/26/19 revised/updated TSB. Don't know if it contains actual ECU remapping optimizations based on feedback or just updated coverage information. Print this out and give it to your service advisor. Mine claimed there were no "recalls" and the master technician had to inform him the TSB are different from recalls.


I had the TSB done and oh boy the normal mode now drives like sport mode. It's amazing. The gears are shifting so smoothly. I don't think it's placebo either because with the loaner NX300 I was given I thought to myself "this is how gears should shift."


And remember to take a ton of photos before sending your car away. I was too trusting thinking these guys deal with Lexuses everyday and that they must be super careful but nope. There's now a 2 inch scratch on my rear bumper, deep enough that I can see the dark plastic. The SA said he'll forward the issue to the customer relations and the service manager and I'll hear back by Monday or Tuesday since they don't work weekends. The funny thing is I have a $600 dual channel dashcam with $400 in backup batteries but I disconnected it to be nice and to give them privacy while they worked. I'm a goddamn moron.

Originally Posted by johnhey

I have done the same update couple of weeks ago with terrible result.
Now car changes gear too soon and end up to jerk feeling %50 of time when changes the gear. my smooth Lexus turned into a rocking chair now. BE AWARE
it happens more in down shift if you decelerate fast and sometime in accelerate there is a surge. (do you have this issue after TSB done? (L-SB-0032-19)

I went back to dealer and asked to put original ECU software (revert the TSB) but they say they can not go back and downgrade the software. Do you know if this is true?
My Car is 2019 non f-sport

Originally Posted by Onion

Took it in for checks today and they insist me to take technician out for a test drive and reproduce the problem. I mentioned the LTCI number and they said it may not fix the issue since it may not be the correct TSB(maybe my English comprehension skill is not on par)

After the test drive they said they flashed the ECU, however the sticker under the hood isn't updated, so I'm not sure which version got flashed in. I will report back in a few days to see if this fixes it.

Originally Posted by rxtimes2

Looks like the receipt you received shows only the work done to address the suspension noise problem. If you can, find another dealer and tell them that "the vehicle is bucking when it shifts gears." Those are the words from TSB 0032-19. My service manager told me that they are having good luck with this fix, and he would be happy to apply it to my car. A good dealership makes all the difference in the world.