300/600/700 Issues, problems and solutions (1 Viewer)

[Sinister]

Figured I’d start a LX600/700 thread for us with issues with the new platform. I guess I’ll go first.

2023 LX600, My rear hatch is starting to experience intermittent issues with closing. I hit the hatch button, beeps once like it’s going to close then I get the 2 beeps and that’s it, no movement. I’m guessing it’s the pinch sensor, I’ll continue to monitor and when I get it looked at, I’ll report back.

 

[Docyota]

2022-24 LX600. Clunk into first gear during acceleration during a rolling stop, but also sometimes during highway driving and downshifting (6th-5th gear).

Solution: no solution, innate design flaw.

Partial solutions:
-You can alter your driving style with gentle pressure on the gas while the computer figures it out, then accelerate after the down shift.
-larger tires make the clunk less noticeable.

Extra comments:
I suspect the design anticipated the hybrid system, as the clunk is completely gone with the Lx700h, and the electric motor provides torque during engine start up from start/stop and also during highway passing maneuvers.
I would still be driving my 2022 with the above partial solutions. It was not a killer problem for me.

 

[EscapeWagon62]

2024 LX600 Lag/Delayed/no throttle response when doing a “rolling stop”. Symptoms are worse in sport and sport plus than when in normal mode.
Interim solution - While Lexus is looking into a programming update you can mitigate it by setting your Pre-Collision System (PCS) to the minimum distance (one green bar) or shutting it off. Both are done via the small information screen directly in front of the diver. The PCS is killing throttle response as it sees a potential collision happening. It also seems to limit torque via the torque converter. Moving it to minimum distance makes it more predictsble, turning it off makes it drive like it should but you loose a key safety system

 

[Oakleyguy]

Figured I’d start a LX600/700 thread for us with issues with the new platform. I guess I’ll go first.

2023 LX600, My rear hatch is starting to experience intermittent issues with closing. I hit the hatch button, beeps once like it’s going to close then I get the 2 beeps and that’s it, no movement. I’m guessing it’s the pinch sensor, I’ll continue to monitor and when I get it looked at, I’ll report back.

This is usually by weak signal from the key. If you're using the credit card key this can happen.

I've also found if I have a few items in my same pocket as the key fob this can happen occasionally. Jiggle the fob in your pocket or remove it and the hatch closes as normal.

Also note, that if you leave the hatch open for long periods of time (like 2hrs+) sometimes it forgets its position and you'll need to manually close the hatch to restart it's power operation.

 

[Sinister]

This is usually by weak signal from the key. If you're using the credit card key this can happen.

I've also found if I have a few items in my same pocket as the key fob this can happen occasionally. Jiggle the fob in your pocket or remove it and the hatch closes as normal.

Also note, that if you leave the hatch open for long periods of time (like 2hrs+) sometimes it forgets its position and you'll need to manually close the hatch to restart it's power operation.

Yeah I know about the credit card key for the lock and walk away feature (that sucks with the credit card key) But I’m experiencing it with just trying to close it without locking it or walking way. I had the key out of my pocket in my hand and the hatch was only open for 2 min.

 

[Oakleyguy]

Yeah I know about the credit card key for the lock and walk away feature (that sucks with the credit card key) But I’m experiencing it with just trying to close it without locking it or walking way. I had the key out of my pocket in my hand and the hatch was only open for 2 min.

Now that is odd!

 

[Sinister]

Now that is odd!

I’m bringing it to Lexus next Monday in the morning. I will update. I even took a video of it so these boobs can’t say unable to replicate.

 

[Sinister]

Update: work order completed, left side pinch sensor was sticking, Ordered a new one and replaced.

 

[Joe T]

Yeah I have a few minutes.

• Delayed or absent first gear availability when accelerating from a roll, down to 2mph but mostly between 4-8mph. Sometimes very abrupt delay causing a 1-2 second vehicle stall. Even happens occasionally when manually downshifting as well. Sensation of accelerator depressed as normal, stagnant acceleration as vehicle goes into first, or vehicle revs as it struggles to accelerate normally and slams into first with a delay. Light and tempered throttle application will allow moderate acceleration in second gear only.
• Occasional downshift delay at other speeds.
• Credit card key intermittently (mostly) will not work at rear hatch ‘walk away / lock’ function, but does work for normal function. Vehicle does not allow you to bypass the ‘walk away’ to lock function.
• PCS interfering with throttle input in all scenarios.
• Jittery and almost subsonic vibrations. Fixed with higher viscosity motor oil for a large part.
• Stereo will start off at a loud volume when starting the car occasionally, when hooked to bluetooth (phone).
• Front end is kinda bouncy but this gets smoother as you get 10-20k miles on it.
• Proximity sensors can be confusing. Backing away from a fence shouldn’t set them off, I am most concerned about looking behind me at the kid climbing under my tire.
• Doors require slamming, North American fsports didn’t have auto closers till 25 for some reason (weird they didn’t include this for the price point).
• Transmission/Tc jerks at moderate speed.
• Square tire feel during cold acceleration (valvebody valve misc)

Edit: 2024LX600 fsport

 

[Hundy]

Rattle/light tapping sounds coming from headliner just in front of sunroof. Anyone else have this issue or a fix? It sounds like it's coming from under the interior lights/sunglasses tray area kind of. Its a faint tapping sound but annoys me greatly.

 

[Sinister]

Rattle/light tapping sounds coming from headliner just in front of sunroof. Anyone else have this issue or a fix? It sounds like it's coming from under the interior lights/sunglasses tray area kind of. Its a faint tapping sound but annoys me greatly.

I recall seeing it being a wire loom connector up by the speaker in the head liner. I’ll look for it.

Found it over at clublexus.

Headliner Speaker Rattle - ClubLexus - Lexus Forum Discussion

LX - 4th Gen (2022-present) - Headliner Speaker Rattle - Hello, I have come back from a trip to West Texas and Palo Duro and now I have a rattle. I have isolated it to the speaker housing in the second row, in the headliner. Would anyone know how to pull that cover out? Trim tool pull and pray...

www.clublexus.com

 

[Joe T]

Thats a loose wiring harness. It happens across all makes.

 

[Oakleyguy]

Rattle/light tapping sounds coming from headliner just in front of sunroof. Anyone else have this issue or a fix? It sounds like it's coming from under the interior lights/sunglasses tray area kind of. Its a faint tapping sound but annoys me greatly.

I get this occasionally on cool mornings, but once everything is warmed up it goes away.

As typical my dealer told me "they couldn't hear anything" so it's up to me to fix. I have some foil lined jute that I may use on top of the headliner to remedy the issue.

 

[mrlittlejeans]

I get a rattle at the drivers side bottom corner of my windshield and it drives me crazy. I figured out that leaves get stuck under the hood in that corner near the hinge for the hood and in the little well where the wiper connects. I regularly suck them out with a vacuum but need to put some foam in to stop the leaves from getting in there.

 

[EscapeWagon62]

I just figured out the same leaf issue this past weekend!

 

[Sinister]

I just figured out the same leaf issue this past weekend!

Funny stuff, happened years ago with my 200 too! Drove me nuts till I found it.