Lexus GX 2010+ :: Brake Pedal Vibration And Noise When Depressed At Low Speeds
Jan 6, 2013
We purchased the vehicle (2013 GX460) in September 2012, and had the car for 6 weeks before my wife was hit by an oncoming car who missed a stop sign. 8 weeks later and 23k of repairable damage to driver fender, front bumper, grille, hood, frame, and all components within those major areas, we received our vehicle.
The vehicle is wonderful and a joy to drive. When the brake pedal is depressed at low speeds (i.e., maneuvering in parking lot, entering driveway), there is a slight vibration to the pedal (similar to the vibration from a cell phone) and a noise that suggests an electric motor is working. The vibration is not like ABS; ABS is a profound vibration. The vibration we experience is very slight. The vibration is not apparent at highway speeds.
I do not recall either the vibration or the noise prior to the accident, and I suspect that this is a result from the accident or from the repairs. I have already brought the GX back to the dealer for this problem and they were quick to dismiss it, but I am really concerned that this is a real problem, and I want the dealer to re-assess.
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I have a 2014 Passat TDI with a 6 speed manual. When the clutch pedal is depressed between upshifts, there is an audible groaning sound and a vibration in the clutch pedal. The dealer replaced the throwout bearing but the problem persisted. They then replaced the entire transmission and the noise/vibration is still there. The noise follows engine RPM. Is this normal for the TDI powertrain? The dealer had never encountered the noise but they did find another car on the lot with the same noise.
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But when I take my foot off the brake pedal , its just seems rather noisy (clunky). As if VW forgot to put some rubber or something to prevent this clunky sound. (it just sounds cheap)
My jetta and tiguan never seemed like this. Have to stick my head under there and see whats up
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To all 2014 and 2015 GX 460 owners, does brake pedal have a slight modulation or vibration while press it. Feels like ABS but not as strong pumping action.
When I step on the brakes the first time feels normal and then I let go of the brakes, then I press it the second time that is when I feel a slight modulation or vibration of the brake pedal.
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My brake pedal is making a creaking noise when depressed and can also be heard when letting off the pedal. The noise is not coming from the brakes themselves (front/back are like new) but the pedal area or somewhere behind it. This noise doesn't start until I've driven the car for a little while. The brakes work fine for the most part but sometimes feel a bit spongy if making a sudden or hard stop. The fluid levels are fine.
I'm taking it in on Friday and hoping that the brakes just need to be bled a little or maybe the pedal just needs lube, but I'm worried it might be the booster or master cylinder---if it is one of these?
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I have a 2004 GX470; bought it new. The last few months I have been hearing a strange noise from the driver's side; seems to be coming from under the floorboard and can sometimes feel a vibration in the brake pedal. The noise is similar to a cat meowing. Have a son who is a GM tech; he said it sounds more electrical than mechanical. It happens mostly when I drive it cold. Seems to also happen more when turning/braking. I had the main belt replaced this summer. Should I have the tension pully replaced?
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My new GX460 has 120 miles now, and starting today, I heard noise when pushing the brake pedal. After get the parking lot, I turned off engine, and used hand to push the brake pedal, I can hear same noise, which like a air or gas squeeze out. Seems not big deal to me, just like to see do you GX460 owner have similar thing or I need to to dealer again.
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Our 2013 RX350 has a brake pedal that makes a pretty loud noise when it snaps back after you depress it a little harder and take your foot off. I complained to my SA, and they told me it's normal. It's not a big deal, but any other car I have owned, I have never noticed such a thing.
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My less than 7000 miles RX started making noise when I pushed the brake pedal. Evidently it sounded like the "LS brake squawk" according to service foreman. Not sure if the actuator is same in all RXs.
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03 F250 7.3. I busted a brake line last week somehow, Got it replaced and fixed up, Bled that line and everything was somewhat good.
Now, when i hit the brakes hard, I have pressure. If I let off even a little, My pedal will start to sink till i apply more pressure. I am gonna fully bleed my brakes when I'm home to see if this could solve the problem.
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My father purchased the 2015 GX460 this past January and the car currently has 4,500 miles. The first complementary oil change was completed in July. I feel that the brake of his GX460 is not sensitive enough, and I have to step on the brake very hard to feel the truck stopping. Does every GX460 owner feel the same way? I told my father about this, and he said I'm just not used to it. I'm thinking about taking his truck back to Lexus to check it out.
The dashboard so far doesn't indicate any ABS problem. By the way, I'm an owner of a 2014 IS350 F-Sports, and my 350's brakes are much better in my opinion. I'm not sure whether my experience of my 350, which has larger brake calipers for its size, has influenced me to draw such conclusion about the GX460 brakes.
Also, I notice that when I step on/release the GX460 pedals, I hear some noise that sounds like air. Did some research about this on the forum, and some of you have that too. I still don't understand this issue.
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Is it all the lexus rx350 had that noise? From the day I noticed hissing noise when I gentally press the brake pedal down and release it . And same noise can be heard when drive slowly and release gas pedal.
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It could be the ECS kicking in or something but here's what I feel..... when hitting a rough patch of road at I'd say 25 miles an hour or greater and applying the brake over that rough patch of road for what ever reason, my foot is on brake pedal normal and it feels like the pedal gets ultra firm (opposite of pedal diving to floor if you lost brakes) or the feeling is like the brake pedal is pushing back against me, like the car is taking the brakes off on me for a brief second.....its a weird feeling and only happens on rough road when I'm at speed and have to hit brakes, all other braking times it doesn't do this
Good example is coming to a stop at a certain stop light that's got choppy asphalt right at the stop light line.....light turns yellow and I'm at speed and have to brake to stop for the light, it hit the rumbly road and feels like the pedal doesn't want me to brake and gets really firm, I stop and all, but then again makes me worry, because if I had to really stop fast and hard......would I ???
No alarm or alert lights come on, so I don't know ....
Car's got 8,000 miles on the clock ....
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My friend got her front brakes and rotors replaced a few days ago and now the brake pedal is vibrating at various times. It happens when slowing down and at a complete stop. Sounds like the ABS is kicking in to me, BUT is also does it sometimes when driving at low speeds (under 40mph) without pressing the brake pedal. No loud clicking noises, just a quick steady vibration felt at the brake pedal/flooboard.
The service was not done at Hyundai dealership. She is out of town at the moment so we haven't had a chance to take it to the shop yet. She called, they played dumb apparently. I don't know enough about Hyundais to diagnose.
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I have another small issue with my 2004 Prius. I just noticed yesterday that the second I very lightly depress the brake pedal, a little clicking sound is made down below. It sounds like it might be coming from the brake pedal itself or somewhere underneath the hood. It's only when I depress the pedal slightly and it makes pretty much the same sound when I release the pedal. I just had a 5000 mile service done to the car and there were no issues then.
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I have a 2003 Passat GLX 4Motion that was fine Monday...Having heavy rain Monday and with brake pedal depressed unable to get out of park..I have brake lights but when I got into car and started it I have airbag light and esp light on as well as check engine light...Is there a way to by pass the shift lock solenoid so I can move car into my garage...
I cleaned connections as was suggested and had a tough time as Bentley Manual states to remove console one must put lever into 3 which as lever is stuck in PARK was impossible...I tried pulling out the shift knob button as described and when I still couldn't get any response found that when I pushed the button back in that I was finally able to get shift lever to respond and finally come out of park...
I now get code for no TCM Signal P1626 No Powertrain Data Bus Signal Missing Message from TCM which now triggers ABS , Airbag ,ESP , and Check Engine light all with the cause no TCM Signal .... Now wondering if any easy way to test for data bus signal ?
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I have a 2005 Excursion 4x4 Limited 6.0 diesel. I had someone pull alongside me today and tell me my brake lights were out. Sure enough. I double checked and nothing at both lower lights and also nothing at the third brake.
So... here's the short version of the things I've checked so far:
1. no brake lights when pedal depressed.
2. running lights work fine
3. turn signals work fine
4. hazards work fine
5. brake lights DO illuminate when I press the brake button on my trailer brake controller
6. checked power to the green with red tracer wire going to the brake light switch on the pedal. 12 v present continuously
7. checked power to light green wire. 12 v present when pedal is depressed. 0 v when pedal is released.
8. checked power to tail lights (wish I had tried the trailer brake controller sooner, this step would have been unnecessary). voltage present (I think 10-12 v) when the running lights were turned on. 0 v when brake pedal depressed. I suspect now that I would have 12 v when squeezing my trailer brake controller button.
I was pretty convinced it was the brake switch at the pedal. But since I'm seeing the voltage pass through the light green wire when depressed.... I know the wiring to the lights are good because they work when pressing the trailer brake controller button.
So... Do I need to dig into the multifunction switch that I've been reading about? Does the power go from the pedal switch to the multifunction, then to the trailer brake controller? I'm really hoping that I don't have to dig into the column to check that multifunction switch!
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Why is there a sensor on the brake master cylinder? Most other cars and trucks I've seen have tied the cruise control into the brake light (and clutch interlock if Manual transmission.) switch so that when the pedal is depressed, the cruise control cuts out.
In the Ex, could I tap the brake pedal enough that the brake lights come on yet I don't trigger the pressure sensor in the master cylinder to cut the cruise control?
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I bought a new 2012 Elantra in March. Every so often I get a strange vibration through the brake pedal when I'm at a complete stop (red light/stop sign). It happens intermittently and I can't narrow down any exact cause. It happens when the engine is cold, fully warmed up, A/C on, A/C off, only been driving for a few minutes or driving for a few hours. No system lights come on. I've taken the car to the dealer twice and discussed this with them. They've not hooked it up for any diagnostics as yet. I don't think it's a vacuum line, engine or transmission issue because it is intermittent. I also don't think it's a defective engine/transmission mount. Could it possibly be the ABS module?
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I bought 09 GX-470 4K miles ago..has 50K on it. Ran perfect when we bought it. wife said it started doing it 1 week later. I drove it and felt like warped rotors to me. replaced front rotors and pads with cheap wearever brand...I Know...I was sort of trouble shooting..did nothing ...did the back rotors and pads and seemed to fix it..did proper bed-in of new parts but, never checked at speeds above 55mph. recent trip got us up to speeds above 55... at these faster speeds when brakes are applied we get a nasty wheel wobble and a pulsing pedal...braking below 55 it feels fine.. thought's ?? last car was a 4runner which has the the same rotors and pads and never had a problem...could it be ABS ?? should I go with new oem rotors and pads ?
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My new 2012 Prius III was braking with the normal Prius noises until yesterday. It as 1,000 miles on it and while my wife was driving it on the highway a person cut in front of her so she had to brake hard to avoid them. Ever since then when I press on then brake normally I hear a thump noise and feel a vibration under my right foot (just to the left of the brake and on the floor). It comes when I brake at speeds greater than about 12 mph. What it is and why it started? I'm planning on taking it in to the dealer to get it checked out...
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