Squealing Brakes 550 Overtrail

Mine are squawking loudly now at about 1000 miles. Just a couple times before that but now every time I pull out of the garage jn the am. Going to the shop in a week or so.
 
I live in MN and it has been dry for a month. The breaks squeal daily when backing out of the garage. The squeal harmonizes nicely with the screeching eagle noise it makes when the parking brake engages. Looking forward to hearing from those of you who are farther into this problem than me. I thought it would work itself out but looks like many of you have issue after 2,000 miles.
 
Mine has same issues...horrible squealing in the front that I fear is alarming the neighbors. I figured out if you just let off the great and let the car reach somewhat of a full idle reverse speed, then hit the breaks hard, it will just queal a little and then kinda done after that....my wife is good at holding her foot on the break half depressed the entire time she backs up and it squeals the whole way down the 100 foot driveway (detached garage at bakk of lot). Trying to teach her how to do it correctly, but anyways, wanted to share my hack in case it helps some of you while we all wait for a fix.
 
I just got an update from the dealer, I will have the truck pick up tomorrow
See below



Hi Armin, great news! All parts are in for the brakes- arrived today. I am hoping to have the work completed today by end of day. I will touch base with you later this afternoon


Assistant Service Manager

Direct Line 414-540-9268
 
My dealer called me this morning and said my brakes are fixed and they installed "a new part" from Lexus. I will pick up my GX 550 Overtrail after 10 days at the dealer and see if the problem with the brakes is fixed. A few days ago the dealer loaned me a 2023 GX 460. My wife who drives a Mercedes GL 450 and a Rivian R1S drove the GX 460 and thought it lacked power and floated too much. I agree with her. I prefer my 2022 4Runner to the GX 460. I would personally not own one.
Good morning, after the repair the issue went away, I m curios because mine will be ready tomorrow.
Looking forward to have my truck back
A
 
I just got an update from the dealer, I will have the truck pick up tomorrow
See below



Hi Armin, great news! All parts are in for the brakes- arrived today. I am hoping to have the work completed today by end of day. I will touch base with you later this afternoon


Assistant Service Manager

Direct Line 414-540-9268

Good luck! Keep us posted.
 
All
I just pick up the truck and had a conversation with the mechanic, he showed me the tab do tundras and all the parts that they changed, he mentioned that they had the parts order canceled by Lexus due to tundras and sequoias are getting priority.
Since they own a Toyota dealer, they work around and get the parts from their Toyota dealer.
Truck tested and no issues, is being raining all day and no a single problem/noise.
So far I’m pleased, I drove 60 miles and no problems.
 

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Curious what the “fix” was. I have ~500 miles on my LUX+ and experienced it for the first time today (after 2 months of ownership). It was a high pitched squeal only when backing up. It did rain last night so that could have contributed a little to this. That said I’ll keep an eye(ear) on it to see how it progresses.
 
So just to close the loop. When I tried to drive out again 30 minutes later after parking the car the squealing went away. Almost like it was some layer of rust or debris that needed to be burned off from using the brakes the first time.
 
Confirmed today my brakes are not in fact the updated version (no gold dot). Hoping my local dealer comes through, otherwise will have to wait for the TSB

I’m still waiting on my dealer as well. Is the road force balancing fix still effective with the vibration? Mine was good for a few days but it has come back to some extent.
 
Drove 2hrs back home from Orlando and can say the vibration is better but not gone. Also, I just recently added the OEM cross bars, so add wind noise to the experience. Fml

Exactly! This is my experience. I am really hoping the brakes fix is going to take care of the vibration too.
 
All
Drove today 200 miles no issues. Washed the car two times no noise.
I think they got it.
Getting ready for a 3500 miles trip.
I will update after the trip
A
 
All
Drove today 200 miles no issues. Washed the car two times no noise.
I think they got it.
Getting ready for a 3500 miles trip.
I will update after the trip
A
Apparently today lexus issued another repair notice regarding brake squeak.. Oct 22 2024

Waiting for a copy.. The one from October 8th is straight forward..

Anyone know what the new one says
 
Apparently today lexus issued another repair notice regarding brake squeak.. Oct 22 2024

Waiting for a copy.. The one from October 8th is straight forward..

Anyone know what the new one says

@Jupiter Thank you for sharing this information. Do you know if it is an "updated" TSB or a completely new one?
 
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My brake have made loud squealing noises since delivery of my GX 550 Overtrail. I have had my car about 3 months. I had similar issues with my 4Runner TRD Off-road with KDSS. The Toyota dealer eventually replaced my brake pads and the noises went away. My Lexus dealer has had my GX for over a week and are now replacing my entire brake system - pads, rotors, even my brake lines. I thought this was excessive, but I have not been told why they are doing a complete brake replacement. Lexus obviously knows more than they are telling me. Hopefully the parts will arrive soon and I will get my GX back and the noises will stop. My GX has approximately 2500 miles on it.
Had my GX 550 Overtrail + at dealer for minor fix he told me I am second on the list to fix the rear brakes , he also said LEXUS had a fix but they only send one break kit a week so there is a solution be patient good luck
 

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