Shaking when braking at high speeds
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mikemu30 (12-30-21)
#62
Lexus Test Driver
#63
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The rotor warping is caused by 2 things, thinner rotors than they used to be (weight savings) and bad driving (braking) habits, one has to learn how to use the brakes for rotors nowadays can only be turned once if not too badly warped. please don't take it personally, yesterday's cars were a lot more forgiving than today's.
#64
Racer
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Does anyone know the proper thickness of a good rotor? I have not seen any numbers here. Is it 30mm? 70mm? 100mm? The local mechanic will always tell you to replace the rotors so they can make an extra buck but they can not explain why your rotors are worn or broken or defective.
#65
Lexus Test Driver
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They're actually not that expensive to replace once you're doing a brake job. Turning them is certainly an inferior approach. I'd rather not turn them if they're not causing any issues. But replace is best.
#66
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Replacing is always the best way as long as you are getting a superior part. But how do you know?
#67
Lexus Test Driver
#68
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Hello all,
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
#69
Racer
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Hello all,
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
#70
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Hello all,
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
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ravenuer (06-09-23)
#71
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Hello all,
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
I have a 2021 Lexus RX350 F-Sport, I have just turned 16,000 miles and I have noticed at higher speeds I will get a pulsating sensation thru the brake pedal when applying. Funny thing is sometimes its there and other times it is not. Surprised I have this issue at just 16,000 miles anyone have any thoughts on what I should do and what the cause might be. Do I need new rotors??
Fortunately your still under warranty. Definitely bring it in. Hopefully, when the Lexus mechanic test drives the car the brake pedal will pulsate. Also, poorly lubricated pins on the caliper can cause problems.
#72
Pit Crew
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I replaced rotors at 12k miles. Everyone I know with RX/Highlander has this issue. Original rotors are horrid, don't buy them. I bought Acebono rotors and the problem went away entirely and I currently have 47k miles without any issues whatsoever.
#74
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