Interesting, I like the throttle response and shifting on my 8/11/23 production date '23 so much I want to put a lock on the OBDII plug so they don't touch it. No problems with shifting or rolling acceleration. I like the Sport mode for Houston highway traffic holding gears for the occasional jumps to light speed or pulling out from a dead stop at full throttle. I do feel the acceleration stabilize as it passes 2.5k-ish RPM but I imagine the ECU is torque limiting to safe the drivetrain. Daughters are learning to drive, one of them prefers Eco mode for less sensitive throttle response.
ECU reprogram Service Compaign (1 Viewer)
- Thread starter usnick1982
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@Joe T I'm in 024 if you want to drive it.
Yes I am through there daily almost but mostly in 007 or Rice Village throughout the day.
Maybe this weekend? I can come to you.
Last edited:
EscapeWagon62
SILVER Star
Mine is a 24 so it mostly suffers the lag at rolling stop vs any significant transmission downshift/jerky behavior.
Worked much better after having the Lexus dealer so a re-learn on the transmission.
Lasted approx 500-600 miles and reverted..
Disconnected the battery for 30 min and it’s better again.
Spoke to the technician who said that Lexus is still working on a fix, they are very concerned primarily since it affects GX550 too (many of the buyers are new to Toyota/Lexus which was a goal for this platform).
I’ll update once a fix is hound but do recommend an occasional battery disconnect.
Worked much better after having the Lexus dealer so a re-learn on the transmission.
Lasted approx 500-600 miles and reverted..
Disconnected the battery for 30 min and it’s better again.
Spoke to the technician who said that Lexus is still working on a fix, they are very concerned primarily since it affects GX550 too (many of the buyers are new to Toyota/Lexus which was a goal for this platform).
I’ll update once a fix is hound but do recommend an occasional battery disconnect.
And the lag at a rolling stop gets worse, its now delay/kicking me as low as 2mph. Seems like some corporate discipline is very sorely needed at Toyota/Lexus. The effective gear ratio is 2.19 in 2nd gear.
I have a programmer waiting and ready to go. Guess I will use this BS as an excuse if they want to void my warranty. Definitely getting 5-30 oil into it asap.
I have a programmer waiting and ready to go. Guess I will use this BS as an excuse if they want to void my warranty. Definitely getting 5-30 oil into it asap.