Brake issue

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Mar 29, 2026 | 06:11 AM

#31

np20412

Lexus Test Driver

Joined: Aug 2003

Posts: 7,661

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From: Florida

Quote:

Originally Posted by ratchettt

Upon delivery of mine the tech and I setup many preferences. One was automictic parking set at power off. After your experience I attempted to turn this off without success. Realized never set PB on past cars except when on an incline so I could get out of Park to Drive. Next service we'll correct this.

It's very simple. Either pull or push (I don't remember which) the parking brake switch for 5-6 seconds until the message flashes in the dash, then release. That will enable/disable the automatic function of the parking brake.

Mar 29, 2026 | 06:20 AM

#32

tecman

Lead Lap

Joined: Aug 2013

Posts: 4,873

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From: GA

Day after bringing it home, I went to a lake for a picture. First car with an automatic parking brake… definitely a little tense stepping out

Mar 29, 2026 | 08:34 AM

#33

Korbek

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Joined: May 2024

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Quote:

Originally Posted by tecman

Day after bringing it home, I went to a lake for a picture. First car with an automatic parking brake… definitely a little tense stepping out

Oh no, I think I was there that day! Was this you?

Mar 29, 2026 | 11:51 AM

#34

ratchettt

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Joined: Apr 2025

Posts: 591

Likes: 359

From: TN

Quote:

Originally Posted by np20412

Operation addressed in multiple-multiple paragraphs on page 204 of my OM. which I read. This simple statement should be there. As you said "simple". Much obliged.

Mar 29, 2026 | 12:12 PM

#35

barncobob63

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Joined: May 2025

Posts: 625

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Quote:

Originally Posted by Korbek

Oh no, I think I was there that day! Was this you?

WTF is going on there. Is this photoshopped...tell me this really didnt happen...so much is AI I dont know what to believe anymore.

Mar 29, 2026 | 12:33 PM

#36

355F1

Pole Position

Joined: Jul 2010

Posts: 2,595

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Quote:

Originally Posted by barncobob63

wtf is going on there. Is this photoshopped...tell me this really didnt happen...so much is ai i dont know what to believe anymore.

🤣

Mar 30, 2026 | 05:44 AM

#37

Korbek

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Quote:

Originally Posted by barncobob63

WTF is going on there. Is this photoshopped...tell me this really didnt happen...so much is AI I dont know what to believe anymore.

Lol yeah its his identical pic with the waterline moved up over the car. ChatGPT even added ripples to the water without me asking. A single prompt with the pic uploaded requesting front half submersion was all it took.

Just havin a laugh.

Although that is nightmare inducing for our beloved LC 500s now that I reflect on it!

Last edited by Korbek; Mar 30, 2026 at 05:46 AM.

Mar 31, 2026 | 03:45 PM

#38

fodalo

Racer

Joined: Jan 2021

Posts: 1,256

Likes: 626

From: NH

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Apr 1, 2026 | 01:23 PM

#39

ratchettt

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Joined: Apr 2025

Posts: 591

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From: TN

I've decided to leave the auto parking feature active.

Apr 4, 2026 | 01:19 AM

#40

Korbek

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Intermediate

Joined: May 2024

Posts: 425

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Update:

Lexus actually had the dealer replace ALL FOUR rotors to be sure that the issue was resolved and didnt require repeat trips. Shockingly the cost for all 4 only came to about 2 grand (covered by warranty but just surprised at the low cost). My SLC 43's rotors cost that much and are smaller!

Braking is smooth now, no more vibration.

This level of after-the-sale customer service is a big part of why I cant give Ford and GM my business these days. They'd have denied it as a "wear item" and blamed me.

Last edited by Korbek; Apr 4, 2026 at 06:09 AM.

Apr 4, 2026 | 07:43 AM

#41

glennbaz

Driver

Joined: Nov 2020

Posts: 89

Likes: 69

From: AZ

So now we will never know exactly what was the problem. That is unfortunate.

Apr 4, 2026 | 09:21 AM

#42

fodalo

Racer

Joined: Jan 2021

Posts: 1,256

Likes: 626

From: NH

Sounds like it was brake rumble from the rotors. They were replaced and no issues.
Good for u Korbek issue gone away!

Apr 4, 2026 | 11:37 AM

#43

Korbek

Thread Starter

Intermediate

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Quote:

Originally Posted by glennbaz

So now we will never know exactly what was the problem. That is unfortunate.

Only 2 real possibilities:
1. Out-of-round rotors, though that seems unlikely with brand new rotors from the factory that hadnt seen any track use or super aggressive driving

2. The corrosion from pad material adhering to the rotor surfaces while sitting in port was in fact enough to cause the rumble/vibration when braking after all. All respect to the prior poster who stated it didnt look like enough material to cause it, it seems like the most likely answer to me. Occam's razor and all that.

Either way I am grateful for Lexus USA's proactive decision to replace all 4 and save potential additional dealer trips for diagnosis. Very very happy (except for the rain that began 30 mins before pickup necessitating a wet drive home and a fresh wash despite her being clean prior to trip