2018 RX450H F sport Braking Noisie - ClubLexus - Lexus Forum Discussion

Notices
Hybrid Technology Unique topics related to the 2016 up RX450h model hybrid drivetrain and other features/options found only on the RX450h. Please use the main forum for discussion about shared components with other fourth generation RX models.
Sponsored by:
Sponsored by:

2018 RX450H F sport Braking Noisie

 
Old 03-12-19, 06:42 PM
  #1  
richard203
Lexus Test Driver
Thread Starter
iTrader: (1)
 
Join Date: Nov 2008
Location: CA
Posts: 934
Thanks: 0
Thanked 38 Times in 37 Posts
Default 2018 RX450H F sport Braking Noisie

hi i got a knock noise from the passenger front when i brake. i brought it to lexus and they say its the brake aculator making the noise. i was wondering if this noise normal. the video i post theres two noise the noise im refering to sound like something rolling onto something.


Last edited by richard203; 03-12-19 at 06:47 PM.
richard203 is online now  
Old 03-13-19, 12:53 PM
  #2  
ukrkoz
Lexus Test Driver
 
Join Date: Mar 2011
Location: wa
Posts: 1,467
Thanked 138 Times in 129 Posts
Default

No. BA should not be firing every time you tap brakes. I have 2 Lexi - 2011 and 2015, both have BAs. None of that. Had 2007 Camry Hybrid and 2012 Highlander Hybrid, both with BA, same thing.

Last edited by ukrkoz; 03-13-19 at 01:43 PM.
ukrkoz is offline  
Old 03-13-19, 12:55 PM
  #3  
ukrkoz
Lexus Test Driver
 
Join Date: Mar 2011
Location: wa
Posts: 1,467
Thanked 138 Times in 129 Posts
Default

Just take another same model out for test drive. Year and model. Go to a different dealer in a different car. Tell them you want to t-drive one.
ukrkoz is offline  
Old 03-13-19, 01:42 PM
  #4  
ukrkoz
Lexus Test Driver
 
Join Date: Mar 2011
Location: wa
Posts: 1,467
Thanked 138 Times in 129 Posts
Default

And why are you racing two Cameros?
ukrkoz is offline  
Old 03-13-19, 06:50 PM
  #5  
richard203
Lexus Test Driver
Thread Starter
iTrader: (1)
 
Join Date: Nov 2008
Location: CA
Posts: 934
Thanks: 0
Thanked 38 Times in 37 Posts
Default

Originally Posted by ukrkoz View Post
And why are you racing two Cameros?
wat u mean by racing two cameros? o.0 I just got an update from the dealership they test drive another 450H and didn't hear anything so they say mines has abnormal noise and they suspected its the brake actuator. they ordered a new brake actuator this morning and will come in tomorrow morning. they will put it in the same day and will let me know if it solve the problem.
richard203 is online now  
Old 03-14-19, 05:48 PM
  #6  
richard203
Lexus Test Driver
Thread Starter
iTrader: (1)
 
Join Date: Nov 2008
Location: CA
Posts: 934
Thanks: 0
Thanked 38 Times in 37 Posts
Default

update on this, so they changed the brake actuator and they still can hear the noise. they say when u sit on the driver seat you can hear the noise coming from the passenger side, and if you sit on the passenger side you can hear the noise coming from the driver side. they are letting the shop foreman handling this tomorrow and will update me again.
richard203 is online now  
Old 03-15-19, 06:07 PM
  #7  
richard203
Lexus Test Driver
Thread Starter
iTrader: (1)
 
Join Date: Nov 2008
Location: CA
Posts: 934
Thanks: 0
Thanked 38 Times in 37 Posts
Default

NEW UPDATE: the tech found out that theres something inside the sunglasses holder. every1 over looked that including me. so everything is fixed now including the brake buzzing noise since they replaced the brake actuator .
richard203 is online now  
Old 03-16-19, 05:07 AM
  #8  
JSracer
Lead Lap
 
Join Date: Sep 2017
Location: MN
Posts: 636
Thanked 67 Times in 58 Posts
Default

i heard that in the video, but didnt think you would chase something that obvious
ahh sounds like it was 2 different noises.
JSracer is offline  
Old 03-16-19, 12:38 PM
  #9  
richard203
Lexus Test Driver
Thread Starter
iTrader: (1)
 
Join Date: Nov 2008
Location: CA
Posts: 934
Thanks: 0
Thanked 38 Times in 37 Posts
Default

the first noise is when I step on the brake pedal hard which cause the noise then the second noise is the rolling noise.
richard203 is online now  
 


Thread Tools
Search this Thread

Contact Us About Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: