Brakes Squeal

Does anyone else exerience brakes squeel in reverse? Mine seems to do it mostly after it has sat for a while. I only notice it in reverse.
Yes! Most irritating!! I thought it was because of all the rain we were having
, but thats not the case.
 
Outside of an F-Series, I would agree with that. But, one is limited when it comes to full size trucks. It's funny because I have a LC, my neighbor has a GX550, and my other neighbor has a Lincoln Aviator.
When Ford was in the red for a couple of years, the new CFO said that he would fix Ford over night. He did. Simply by denying customers warranty repairs. My brand new 2015 transit 350 windshield wipers would intermittently and unpredictably simply not work. No dealer could/would fix them. When handles started falling off, they refused to repair them, despite the ford bumper to bumper extended warranty. I could go on..
 
Does anyone else exerience brakes squeel in reverse? Mine seems to do it mostly after it has sat for a while. I only notice it in reverse.
Bought mine last March. Around May, I started hearing the brakes squeaking everytime I backed up. I just brought it to the dealer this morning (Monday, 6/30/2025). The desk guy told me it's normal for high performance brakes, and I bluntly told him that's not acceptable for a $80k worth of a vehicle. The squeaking is extremely annoying and frustrating specially around people in the parking lot staring at me when they heard the squeaking. I told him I have 2021 Tacoma I bought new in late 2020, and I never heard the brakes squeaking.
 
A stainless spring steel shim may help alleviate the non-100% bleed off of the hydraulic pressure due to……. when it cools, it’ll shrink slightly and allow more space between the pad and the rotor.

Just my theory tho’
I'm considering reinstalling the OEM pads and shims with some fresh brake grease to see if that takes care of the problem for few dollars. I suspect ceramic pads will not squeal either, based on past experiences..
 
I'm considering reinstalling the OEM pads and shims with some fresh brake grease to see if that takes care of the problem for few dollars. I suspect ceramic pads will not squeal either, based on past experiences..
I made the call to Toyota Brand Engagement. They gave me a case # which will be sent to my servicing dealership as well. Analyst was polite and knew nothing of the issue. She did her job, and I am now counted among the lost. I had previously reported the problem to the NTSB. Problem was reported to dealership at 5K mile oil change. They could not replicate the problem. Where have I heard that before? I am now at 9563 miles with the brake squeal in reverse. I did tell the analyst that a TSB had been issued for Lexus vehicles. Crickets. Time will tell if Toyota stands behind their products. My floor mats do not slip.
 
I made the call to Toyota Brand Engagement. They gave me a case # which will be sent to my servicing dealership as well. Analyst was polite and knew nothing of the issue. She did her job, and I am now counted among the lost. I had previously reported the problem to the NTSB. Problem was reported to dealership at 5K mile oil change. They could not replicate the problem. Where have I heard that before? I am now at 9563 miles with the brake squeal in reverse. I did tell the analyst that a TSB had been issued for Lexus vehicles. Crickets. Time will tell if Toyota stands behind their products. My floor mats do not slip.
Same here calls to Toyota Brand engagement was a total waste of time. They admitted there’s nothing they can do.
 
My thought is the caliper mounting surface is slightly canted (couple of thousandths) on the forward edge. This would cause the pads to wear slightly more on the front edge vs the rear edge.

When you stop with your foot on the brake and put it in park, the pads are squeezed against the rotor and come to rest. This is a substantial amount of hydraulic pressure, normally when you remove your foot off the brake the residual hydraulic press bleeds off and the “barrel” side pad retracts slightly, removing the “pinch”.

Since there is an electrical parking/hold function I believe that system’s not allowing residual pressure to 100% bleed off (even tho’ you didn’t press the button). Those couple of thousandths difference between the front and back edges of the pads are creating a knife edge against the rotor at the rear of the pads and when you back up, that knife edge is scraping the rotor creating the horrific sound until you put it in drive and release the brake (I keep my foot on the brake when in reverse). The rotation of the rotor with no brake applied will naturally realign the pads to the same plane as the rotor and the sound goes away.

By backing into my parking spot and when departing the next morning, my foot is on the brake, shift into drive, release the brake and the rotor immediately starts rotating, thus realigning the pads (knife edge no longer making contact) and in my case …… no horrific sound.

A stainless spring steel shim may help alleviate the non-100% bleed off of the hydraulic pressure due to……. when it cools, it’ll shrink slightly and allow more space between the pad and the rotor.

Just my theory tho’
Interesting video.
 
Yesterday I had to back out of my driveway as I was headed to work and two of my neighbors were standing there and the vehicle screeched so loud. While in the grand scheme of life there are worse things, it was embarrassing. I now back into my driveway until this gets fixed.
 
UPDATE

Close to 5k miles since the dealership replaced the front pads, shims, and resurfaced the rotors. So far, so good and no squeal. Since the squeal originally popped up within the first 1k miles or so I'm hopeful it's gone for good.

For those within a reasonable drive to Noblesville, IN, I took mine to Ed Martin Toyota and had no issues getting them to do the work under warranty. I provided a printout of the Lexus TSB and then dropped the vehicle off the night before and parked so the tech would need to back it out in the morning; his note indicated a VERY loud squeal while only in reverse. They did need to order parts and that took 3-4 weeks to come in.
 
UPDATE

Close to 5k miles since the dealership replaced the front pads, shims, and resurfaced the rotors. So far, so good and no squeal. Since the squeal originally popped up within the first 1k miles or so I'm hopeful it's gone for good.

For those within a reasonable drive to Noblesville, IN, I took mine to Ed Martin Toyota and had no issues getting them to do the work under warranty. I provided a printout of the Lexus TSB and then dropped the vehicle off the night before and parked so the tech would need to back it out in the morning; his note indicated a VERY loud squeal while only in reverse. They did need to order parts and that took 3-4 weeks to come in.
Ed Martin Toyota is arguably the best dealership in the US.
 
Ed Martin Toyota is arguably the best dealership in the US.
Just curious. Does a dealership receive an award for that distinction? Toyota dealers used to be quite proactive in obtaining positive customer reviews. Maybe not so much anymore with all the quality issues with twin turbo v6 engines. It is certainly good to hear about good dealerships.
 
Just curious. Does a dealership receive an award for that distinction? Toyota dealers used to be quite proactive in obtaining positive customer reviews. Maybe not so much anymore with all the quality issues with twin turbo v6 engines. It is certainly good to hear about good dealerships.
There was a pedestal in the showroom with plaques for approx 10-25 years of #1 dealership etc.......

The most impressive thing to me, Was Eric's, the GM, desk was an ordinary open desk/station about 10 feet inside the doors. He was sitting there when I walked in and if you didn't know who he was, you would never guess his status. No fancy clothing, mild mannered and no talking above you, just straight to the point. Just a good ole' boy. I made the trip from Alabama, and his first concern was if I had found a hotel ok..................
 
Does anyone else exerience brakes squeel in reverse? Mine seems to do it mostly after it has sat for a while. I only notice it in reverse.
Us too. It's been 5 months. Every day, all day. It's horrible. We are getting the run-around from our dealer. They say they are waiting on parts, but when pressed, say that they have no parts to order because Toyota Australia haven't yet acknowledged the problem. Essentially, we have no resolution. I am currently in the process of seeking media attention. It's my understanding (if my research is correct) that Lexus was experiencing the same issue, but has since resolved it for their customers. This is our first Toyota, and it hasn't been an overly pleasant experience. To be fair, we really like our dealer; the guys are great, but Toyota Australia ties their hands. This needs more pressure from the public on Toyota Australia directly. Beyond filing a Dealer Product Report with your dealer, focus on putting pressure on Toyota Australia. I believe this is outside of our dealers' hands. I would also suggest that we all consider publicly commenting on their social media platforms - not the dealers' profiles, but Toyota Australia's. I will be sending their public relations team a letter about this in the coming days. This is terrible for their brand. Reversing from a parking space, everyone looks over to see which car is making such a terrible, unreliable noise, and it's coming from a brand new Toyota.

It's my understanding that no one in Australia has had a resolution yet, and some people have been experiencing this for 6, 7 months.
 

Attachments

  • 250 Prado Brakes.mp4
    8.8 MB
Us too. It's been 5 months. Every day, all day. It's horrible. We are getting the run-around from our dealer. They say they are waiting on parts, but when pressed, say that they have no parts to order because Toyota Australia haven't yet acknowledged the problem. Essentially, we have no resolution. I am currently in the process of seeking media attention. It's my understanding (if my research is correct) that Lexus was experiencing the same issue, but has since resolved it for their customers. This is our first Toyota, and it hasn't been an overly pleasant experience. To be fair, we really like our dealer; the guys are great, but Toyota Australia ties their hands. This needs more pressure from the public on Toyota Australia directly. Beyond filing a Dealer Product Report with your dealer, focus on putting pressure on Toyota Australia. I believe this is outside of our dealers' hands. I would also suggest that we all consider publicly commenting on their social media platforms - not the dealers' profiles, but Toyota Australia's. I will be sending their public relations team a letter about this in the coming days. This is terrible for their brand. Reversing from a parking space, everyone looks over to see which car is making such a terrible, unreliable noise, and it's coming from a brand new Toyota.

It's my understanding that no one in Australia has had a resolution yet, and some people have been experiencing this for 6, 7 months.
see post #478 above........
 
I’m back at the dealer for my 15,000 mile service right now. The service manager asked me to pre-authorize a $350 brake repair and she said she’s going to be calling Toyota to ask why the customer should be paying for this.
Fingers crossed we get a different answer this time. She said they’re having the same problem with the Tundra and Sequoia, but those are getting covered under warranty.
She said the problem is widespread with a new land cruiser. Worst of all she said they’re selling brand new 4runners and they’re having the exact same issue. That’s beyond sad.

Kaizen/TQM ain’t what it used to be.

Also calling Toyota Brand engagement is had been a total waste of time for me. I probably spent 2+ hours on hold and talking to various representatives you do nothing but apologize profusely, and say we will look into it. I told them there’s nothing to look into you. Just replace the faulty parts and then they will tell you the parts are not available. When I question them if they’re still selling them with faulty parts they will say, of course not. Then I say go get me those parts and then say they’ll look into it.
 
Last edited:
The entire boat ramp cringes when backing the boat in EVERYTIME, Dam Trailer I yell from the 1958
 
I’m back at the dealer for my 15,000 mile service right now. The service manager asked me to pre-authorize a $350 brake repair and she said she’s going to be calling Toyota to ask why the customer should be paying for this.
Fingers crossed we get a different answer this time. She said they’re having the same problem with the Tundra and Sequoia, but those are getting covered under warranty.
She said the problem is widespread with a new land cruiser. Worst of all she said they’re selling brand new 4runners and they’re having the exact same issue. That’s beyond sad.

Kaizen/TQM ain’t what it used to be.

Also calling Toyota Brand engagement is had been a total waste of time for me. I probably spent 2+ hours on hold and talking to various representatives you do nothing but apologize profusely, and say we will look into it. I told them there’s nothing to look into you. Just replace the faulty parts and then they will tell you the parts are not available. When I question them if they’re still selling them with faulty parts they will say, of course not. Then I say go get me those parts and then say they’ll look into it.
Toyota Brand Engagment called the dealer and told them to attempt to diagnose and document the issue. Not sure if this is an attempt to actually escalate the issue or get to a “ failed to replicate customer reported issue” like so many others are getting.
 
Supporting Vendors View all →
Back
Top Bottom