So I have had my LC for about 2 months now, and recently I noticed that the car has a lot of brake squeak. I mean really loud brake squeak. When I asked the dealer about the noise, he told me that it was normal for that car. I understand that there may be some squeak after some hard driving, but just normal cruising around, and using light brake, I will hear the brakes squeal. I realize, I could just roll up the windows and I wont hear it as much, but my wife says she can hear me come down the street from inside the house when I slow down to turn into our neighborhood. Does anyone else have the same problem, or has anyone else found a way to eliminate the problem?

 

There is a TSB on it with replacement pads available through Lexus. Should be a free replacement for you, just push them hard and don’t take no for an answer. Replacement pads make zero noise and have no dust, but you give up a little of the bite so you have to decide what’s more important. I had mine replaced at 500 miles.

There are aftermarket pad options too.

 

Thanks Hyboost, I was a little to quick on sending the starter thread as I was able to find the longer thread on the brake issue (apparently I was not the only one)... I will check with Lexus and ask them about the replacements pads. BTW, as far as performance cars with brake noise issues, my M4 made zero noise, but had a TON of brake dust. Maybe cross drilled rotors made a difference.

 

You have it just right.

I had to talk with the Service Manager to get mine replaced.

The advisor was not budging and dismissing the idea that I had an issue telling me that these are high perf cars with high perf brakes.

He was not happy when I showed them the TSB and asked to talk with the Service Manager.

No more noise and no more excessive dust.

I don't know why these cars get shipped with the high perf brake pads.

Puertex

 

Discussed previously:

https://www.clublexus.com/forums/lc-...ke-issues.html

Because it's a Hi-Po GT car. But, as I said above, we have been here before. Mine don't squeal, I've bedded them in. And actually I'm on the prowl for a higher performance pad.

Lou

 

I agree that it is a high performance GT car.

What I don't understand is, why if it is the correct brake pad, there is a TSB for its free replacement.

Perhaps it is a design issue? I kind of doubt it because they had to know that the brake pad formulation was going to result in high dust generation.

I know engineers don't just throw equipment together without testing it. Someone had to design the pad including it's formulation and test it ahead of time.

Your take?

Puertex

 

^^^^There is a TSB, because SOME folks don't like the characteristics of Hi-Po brakes (dust, noise and firm pedal). I'm happy that's not all of us. The same thing happened with the ISF, RCF and the GSF. All of those models also had TSBs for less aggressive pads. If it was the majority of owners that did not like the factory brakes, then Lexus surely would have listened to those owners and acted accordingly. Remember the ISF came out over 11 years ago.

Again, IMHO, a car with the performance potential of the LC and that weighs as much as the LC - DESERVES the strongest brakes available. That includes pad material, calipers and rotors.

Lou

 

Well, to each their own !

I am enjoying not having to wash my wheels every time I go on a 100+ mile trip.

I an glad that Lexus has recognized that there is enough of a % of SOME of us that don't care for the HP pads and has offered to replace them for free.

I know for a fact that they would not make this concession unless there were enough folks complaining about the issue.

I will take a calculated risk and "go out on a limb" to say that the % of SOME is enough to upgrade it to QUITE A BIT BUT NOT A LOT.

Of course, I am sure there is a bunch of folks out there that race the cars and are in the need to stop in a dime

I am OK with stopping in a quarter.

Puertex

 

^^^^I don't wash 'em after every drive, but I do dust 'em off. Really not a big deal IMO

And Yes, Lexus is catering to the few who have complained about the HiPo brakes characteristics.

Lou

 

I’ve owned 2 BMW 650s. They had the same dust issues. Having brakes that stops your car on a dime is really nice when someone else makes a mistake. I hand wash my car every week. I’m torn about changing solely due to brake dust but if the breaks squeak, then I’ll probably do it. I’m having the 5k oil change tomorrow.

 

This topic has been discussed for years in the RCF forum. I think it's ok for that car, but the LC is more of a luxury car, so Lexus should have used the quiet pads. The problem is the specs of the car would be worse on braking distance compared to other high-end cars. BMW brakes don't squeal because their rotors are very soft. At every brake job you have to change everything. The rotors wear way down, hence a lot of dust. Dust of both the pads and the rotors. On all Lexuses that I've had I changed the rotors only after 2nd set of pads.

 

And, as I indicated above, on the iSF forum before that, and on the GSF forum after that.

Initial stopping distance is really not brake dependent, it's tire dependent. However, HiPo brake pads will not fade as fast as consumer pads and thus are much safer in aggressive driving. They also have a firmer feel and are easier to modulate.


Now, as far as what the LC should or should not have, is a personal matter, based on how each of us drive and how we expect our cars to perform. The way I have my LC setup is not what you (buister or Puertex) would want in your LCs, but it's what I want in mine. Lexus has tried to satisfy us both by offering a choice, at least as far as the brakes are concerned. If you're not satisfied, they'll change the pads for you free of charge. Can't get much better than that

My big gripe with the OEM equipment on my LC, was it's non Hi-Po, street only, RFT, tires and narrow wheels. I have mentioned this in a couple of my earlier posts. I have replaced both the wheels and tires with ones of my choice. Wheels and tires are much more expensive to replace than brake pads. So let's agree that our LCs are what we want them to be, by modifying them to fit our desires.


Lou

 

10-4

I saw the your wheel photos and they look very nice.

I agree with you that the tires are narrow.

I have to be careful when turning and accelerating at the same time.

There has been a couple of times that when turning and accelerating the back end begins to slide and I wasn't even giving it that much gas.

Have you felt that before?

Puertex

 

well, I tried bedding them in last night, but no help on the squealing

not sure if the problem is because these brakes had 9K miles on them (since I purchased used).

 

Thankfully, I have not

And for Faustiano, since bedding, my factory brakes are silent

Edit - Puertex - This thought just came to me. Question - Do you have the LSD?

Lou