Prius (2004-09) :: Brakes Hard / Squeak And Grind Too After It Rains
May 13, 2013
Every single time it rains, our 2005 Prius' brakes tend to go haywire-and just when we need them the most. They back breaks lock up, bringing the car to a jolt and throwing us forward. Sometimes it feels like it won't brake and then bam, a very hard stop. Sometimes they squeak and grind too- It never happens when it is sunny outside-only where there is a significant amount of moisture in the air. We've taken the car to the dealer three times and they can never find anything wrong with it.
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I've noticed that when I'm stopped, or in park, and I push on the brake pedal hard I hear a squeak or chirp that sounds like it's coming from the wheels. It might even sound like someone is honking at you as if you were not going when the light turned green. I have not been outside the car when this occurs, so I don't know exactly where the sound is coming from.
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I got my car inspected this summer, and the front brakes were reported as 8 and my rear brakes 6. I got front brakes not too long ago, and my rear brakes are original to the car. Recently, my brakes have very randomly (maybe once per car ride) started making a gentle squeaking or light grinding / grumbling noise when I apply the brakes. It doesn't seem to matter how hard I apply them or at what point during the car ride it is. Now, it will never squeak or grumble/grind at the same time, and the sound is never very loud. It also does not happen when my foot is off the brake or when the brake is released. Only when the brake is applied.
I've had squeaking happen in my previous car's rear brakes when some fluid was leaking, and my rear brakes had to be serviced, however, this sounds like it is coming from the front. I went looking in my owner's manual for a service schedule (for a maintenance code not related to this issue) and noted in very small print underneath the schedule that I should have replaced my brake fluid about a year ago. I don't know whether this could be related, and yes, I am going to get my car checked/serviced soon, but I cannot do it until next week. My questions are what might be causing the noise and also if it could be dangerous. I don't think that my brake pads are worn. The brakes also function very well as far as I can tell. I have no issues stopping. I have 75K miles on my car...
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Is it normal for the Prius's brakes to make a low-pitched squeak (kind of like something wet rubbing against something, or a burp), when I press it semi-deeply and release? The only reason I'm worrying is that I ran over a camouflaged flat metal object on the road today while changing lanes, and it could've weighed anywhere from a soda can to a heavy shovel -- it clunked against the bottom of my car loudly, then got propelled into the air and barely missed a car behind me. It seems trivial but I'm paranoid because I just got the car (used, great condition) and that happened on my first day. I don't remember if it was squeaking before the shovel incident. My girlfriend says her 3rd gen prius does it too but I have yet to verify it.
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About a week after I picked up my "vee" one of the passenger side brakes started to squeak when I would leave the house only after sitting for a while. Is this normal it only seems to be happening on the passenger side. I am thinking it might just be some condensation on the rotor or something but its definitely only coming from one wheel and goes away after driving about a block.
I am planning on having the dealer look at it as there is already a seat squeak / groan. I know where its coming from but I will leave the dealer to fix it.
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After I had the transaxle replaced in my 2008 I was driving on the interstate and the traction control light started blinking and a beeping came out of the dash area. A fast beep-beep-beep-beep-beep... for about a minute then stopped. I took it back to the dealer and they said it didn't throw any code plus "that shouldn't have anything to do with the transaxle".
Everything was fine until a few days ago it rained and it did it again three times, only at highway speeds, stopping after I got under 37 mph. Is something getting wet that shouldn't be? It doesn't slow the car down or anything like a real slipping situation would.
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2002 AVH Jetta Wagon. When I got the car back in 2012 it had 121K and I changed the wires (ngk blue 57021) and plugs (ngk platinum) and she drove like a dream. A couple of months later I started having issues with wet weather and moisture causing misfires so I did the JB WELD fix and though I'd still get the occasional misfire in hard rains it lasted me pretty much until very recently, when I decided I needed to put in a new coil because the problem was getting worse (hardly starting up after a rain and bucking wildly till things dried out). Yesterday, I replaced the BERU with a new HUCO and the car started up fine and drove fine all day. I think there was a lot of moisture in the air last night and possibly some rain but this morning, SAME PROBLEM with a new coil. Misfiring like crazy, no acceleration.
I thought the NGK wires and plugs I got were rated to last beyond 20,000 miles. At this point should I assume the wires are to blame? Split somewhere or something? It's definitely related to water and the electrical system.
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So I drove 400 miles today and when I was just about home I heard a grind when I applied the brakes on the freeway. Well I did a walk around the car to check all the pads and noticed my rear pads are almost gone. I'm not used to having the rear brakes implemented in so much of my daily driving, with the TCS and all.
To make it easy I'd like to keep all four corners on the same brake setup, I'm just not sure what is ideal on this car. I know OEM is gonna be said, but I upgraded my front pads to Hawk HPS'.
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Just like the title says out of the blue the esc light will come on and it sounds like the front brakes are grinding. This only happens once in a while but more often as of late. Grinding noise does not occur until after the light comes on. Sometimes the light will stay on for a minute and then go out and everything is fine. Other times we need to shut the car off and on for the light to go out. Grinding noise only occurs one time in all instances.
We just had a brake job done 3 months ago so I am at a loss as to the problem. This is an 07 FWD Sante Fe.
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The brakes on my 2014 Elantra Sport grind when they are wet/it's raining. They seem fine when dry.
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Driving my 2008 460L and I get the brake sensor warning. Ok I've been through this before and know I have a little time left, but two days later I get a little grind noise. Then suddenly metal on metal what the hell is that noise! Turns out the passenger side rear lost a pad... it's just gone. The plate is left but the pad is gone on the inside of the rotor. The outside still had about 25% left. The other back wheel still had about 25% left on both pads.
I have 97k on the car and the rotor was turned on the last brake job so I assume I am done with this rotor and order a new one. Now the fun... I pull off the caliper and compress the cylinder on the offending pad first. The way I do this is with a big pair of channel locks I put one jaw on the pad and one on the back of the caliper and squeeze. It works a treat so I pull the offending pad and the dust boot falls to the ground in pieces. Great... now I put the channel locks on the other pad and when I squeeze, it goes in very easily with almost no resistance and the cylinder on the other side(with no boot on it) shoots out along with a bunch of fluid, probably 4-6 oz.
I decide to reassemble everything knowing I now need to bleed the brakes. All of the other wheels are normal and the brake job goes smoothly.
Frustrating part is here... how do you bleed the brakes in this car?!
methods I tried:Gravity - open the bleeder valve and let it drip, the dripping stopped after 20 minutes leaving no fluid in the line or caliper at all.
vacuum - I used the hand pump tool to try and pull fluid thru, got little spits and dribbles at best.
traditional - had my son pump the brakes, he could get a spongy pedal that bottomed out but never a firm pedal and the cylinder remained empty.
pump and suck - aggressive pumping of the pedal with the suction device on the hardline nipple. This resulted in a little fluid coming thru but no where near the amount you'd expect.
Now I have VSC, Brake Malfunction, ABS warning on the computer.
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I have an 04' R32 with about 56k on it. Here's the problem; when I drive it hard and speed shift from 2nd to 3rd it grinds just a little. It doesn't do it when I'm just cruisen grany shifting. For awhile now I've been thinking that the synchronous from 2nd to 3rd gear was going bad, till I talked to a friend with a 20th GTI who said that the 6 speed trannies will start to do that, and there's really nothing you can do about it. Is this true that I just have to deal with it or can it be fixed?
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Two weeks ago I took my 2004 Prius (with about 165,000 miles on it) to the dealership because of problems with the rear (drum) brakes grabbing (sometimes hard enough to lockup one of the wheels). Their diagnosis was that they were badly out of adjustment. They "cleaned, adjusted and beveled rear brakes" which fixed the problem, but it returned this morning. I should also mention this dealership had "cleaned and adjusted" the rear brakes twice before over the last couple of years.
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I just purchased a 04 GX 470 the braking system seems to have a lot of travel and are very sponge. I live in MO and it pasted the state inspection. I check fluid and it is good. It has the electronic braking and 4 wheel disk. Is this normal or should I seek Lexis dealer service. I also have a GS430 and the breaks are right there.
Added info: I do not feel any pulsating in the pedal but there is a pulsation in the SUV when it coming to a stop. Feels as if the rotors may need to be turned but the pulsation is not hard it is smooth.
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This morning, I hit the brakes medium hard and got a short metal-on-metal 'scrape' noise from the rear end. It sounded like a brake shoe to me. Later my wife was out shopping and did a 'regular' stop and got the same noise.
The car isn't driven a lot. It's just under 1.5 years old and has 5,400 miles on it. So, I'm pretty sure there isn't a lot of brake wear. Maybe a little above average from mostly city driving. I assume the rear brakes are self-adjusting. Do they make noise when they are adjusting?
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This morning when trying to leave for work, my prius refused to turn on. When you press the brake so you can press the start button, the brake feels extremely hard, almost like it doesn't want you to press it. The light on the start button becomes orange after a pressing the button once. And on the dashboard screen (I don't know what call it on a Prius) in the very bottom right corner, a red notifications light flashes very quickly, so quickly that is hard to tell what it is, but by staring at it for like 30 seconds it looks like the symbol of a car with a lock attached to it. I may be wrong though. My Prius v is a 2012 model, trim three, and it has a little over 60,000 miles on it. I also have a prepaid maintenance through the dealership. I don't even know where to start.
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2004 Prius base
191K miles
There is a squeaking (for lack of a better term) noise from behind the dash..
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There is a pretty loud continuous clicking noise lasting about 30 seconds (not necessarily a bad one - just annoying) that comes on every thirty seconds to a minute when I'm driving my Prius. It happens more often now than it did 10,000 miles ago.
It also happens without fail for a few seconds every time I brake. Is this a normal noise? I fear it may be associated with the brake actuator--which the chirping noise is associated with.
If I press firmly on the brakes (which is rare), they chirp. Toyota released a bulletin on it. TSB BR001-07
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Occasionally for the last year when in Reverse my Prius' brakes will feel hard as rock and will only depress an inch or so. I depress the brake and within a literal inch it's solid and will not depress any more. I can still use the brake and reverse it's just jerky and awkward because I only have an inch to work with.. it's like they lock up or something.
Well today same thing happened while in reverse but instead of the car actually reversing like normal when it has this hard brake problem it actually started rolling forwards while in reverse!! it was as if it was in neutral because touching the acceleration pedal did nothing.. which made me think of neutral cause it does the same thing, but the dash read reverse... all while I'm dealing with a hard brake. I have come to overlook it because I cannot mimic it and figured it was a possible regenerative/electric braking thing and seems fairly common among people here, but today was spooky because it rolled forward out of the blue..
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My 2007 prius squeaks the first 10 minutes of driving. I believe the squeaking sound is coming from the bottom of the vehicle. Car has around 65k miles.
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I had the front struts replaced. I looked at the strut diagram and replaced most of the parts associated with the front struts. The rear shocks were also replaced. New brakes were installed on the front and rear. The front rotors were replaced. Mileage 124000 miles.
I thought this would might solve the squeaking when I went over a speed bump in the parking lot. It did not. How to fix the squeaking.
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