Prius (2004-09) :: Jerky Stop When Brakes Applied
Mar 20, 2013
Just had a couple questions, The first one is in regards to the brakes on my '09. I've read that the brakes themselves don't actually kick in until you are going 7 mph or less. Anyways, when I am coming to a stop it is not necessarily smooth. I try my best to apply even pressure to the brake, but I basically come to a jerky stop. Is this common in a Prius? I bought my car certified pre-owned last month and I know the brakes were one of the checklist items.
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2004 Prius (123,000 miles). For the second time in a month, while driving, the brakes have suddenly gone funny (for lack of a better word). When I first apply the brakes to slow the car, it initially does not respond, then, as I continue to gradually depress the brake pedal, the car will begin to jerk as if I am slamming on the brakes repeatedly.
Just before this symptom begins, the brake system warning lights and master warning light come on.
The first time this happened, I took it to a shop (not Toyota-specific) and they found that my floor mat had slid forward and folded and was under the brake pedal touching the wires. When they removed the floor mat, the problem went away. I threw out the floor mat and have been driving without one.
Today, the same thing happened again, with nothing obstructing the brake pedal.
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Why my 2010 Prius has 3 times now failed to stop when brakes were applied on a steep downhill in slight rain? Happened a year apart with no slick road and with tires both new and old. I pull up to a stop sign on a grade, apply brakes, the car slows, then there are metallic noises and the car glides 3-4 feet before stopping. I'm lucky no car or person was in front of me. Honestly not a skid at all. Service tells me I don't know about anti-lock brakes but I've driven with them on cars for many years with nothing like this.
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I have a question: when physical brakes applied (at the end of the slight braking, or when speed is small, or when gasoline engine starts on parking car, or when i apply brakes on parking) i hear light "pssst" sound. It is like sound from back door stay assembly, when i open back door, or like suspension shock adsorber works. My local service bleed the brake fluid, but it doesn't work. When we bleeding rear brakes (left and right) and opens bleeding plug, that noise sounds continuously until we close bleeding plug. And there is no air in old brake fluid... Technician says, that sound is normal, but i also have Toyoyta Prius 20 and there is no noise while pressing brake pedal... I just want to ask: is that sound normal for Prius 30 or not?
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My wife told me she was hearing a squeaking sound coming from the front end of our 2006 Prius (90,000 miles) along with a noise when she applied the brakes.
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My 2005 Toyota Prius gave me confidence. Here's what happened:
I was driving on the Interstate with the cruise control set at 70 mph. Seeing traffic stopped ahead, I applied the brakes for a moment to slow, then released the brake to coast. Much to my surprise, the cruise control was still engaged and the car accelerated. I applied the brakes again, manually turned off the cruise control, then was able to coast. I drove for another half-hour without incident until the following afternoon when I drove again, experiencing a much more serious problem.
I had just turned left, and was straightening the wheels when I heard, and felt, a loud "snap" in the steering wheel, immediately upon which I knew the steering wheel was disconnected and I could no longer steer the car. Very, very fortunately, and only because I was already nearly stopped, I was able to stop the vehicle without incident.
However, I immediately recognized that, had this happened in almost any other scenario than being nearly parked, the outcome would have been markedly different. The steering wheel is completely loose, not controlling anything, and all the many steering wheel controls are equally disconnected, including the driver's air bag (SRS), something that I would have needed, but wouldn't have worked, had I crashed into oncoming traffic or an Interstate median.
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I have a 2007 Chevy HHR. A couple of weeks ago I had to change the caliper on the driver's side of the car. I had some squeaking after, but bled the brakes and the squeaking went away. The other day I took the caliper off and painted it. I have custom wheels and you can see the caliper plainly, it was rusted so I painted it. Now I am getting the squeaking again, but it stops when I apply the brakes. I bled them again, but still the squeaking. This is driving me crazy. Could it be the "chirper" that is dragging on the rotor? Also I want to add, it squeaks until I get up to about 45 mph. Then it stops. And as I said, it stops when I apply the brakes.
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I have a 2008 Prius basic model bought second hand. There are two issues since I have bought the car; first it will roll back or forward when the brake applied, this happens on any uphill or downhill. I brought the car to Toyota service centre, they did a brake test, the test passed. but this doesn't resolve this issue. It just very weird. during driving, all brake works ok, but parking the car, if not in even service, it starts to roll.
Second, recently I hear there's a crack sound when apply the brake during low speed, especially during the stop/start traffic, and I notice mostly happens when the electrical motor in running. So when brake, the crack, like the spark comes from somewhere like battery. While brake to slow down from high speed, seems no sound. So I suspect it was from the battery or electric motor.
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I noticed yesterday a sound, like a grinding sound, *sometimes* as I apply the brakes to stop. I'm at 68k. The noise only happens when the brakes are applied so I suspect there is an issue with my brakes again.
Some BACKGROUND info: At around 60k (or 8 months ago roughly), the front pads were replaced after the brakes were squealing and a pulsating brake pedal when stopping. The pads were replaced by a dealer. In addition, both front/rear rotors were turned at the same time. Rear pads had 40% at the time and were not replaced.
Some weeks later the pulsation came back and I went back again and they machined them again. For this current issue I was thinking about taking the car to someplace local (not a dealer) and getting a free brake evaluation of what is going on.
I'm also concerned that all this machining the dealer did to eliminate the pulsation may have decreased the life of the rotors and perhaps they need replacement now.
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Just noticed this tonight. While making a left turn, I had the blinker on and had the brakes applied and noticed the indicator on the instrument cluster was blinking. Once off the brakes, it took it a few seconds for it to resume blinking.
When I got home, I checked to see if the right signal did the same and it did. I also checked the rear lights and when the signal is on and the brakes are applied the light does not blink nor does it brighten up like they're supposed to when the brakes are applied, it stays dim as if both the blinker and brakes are off.
I did a quick search. I have not checked any of the bulbs or wiring, but I'm thinking it might be the turn signal switch/ lever. What the problem might be?
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So originally I was told it was my front brakes going bad, which was the case. To address the issue, I replaced the rotors and pads awhile back and the noise disappeared for a bit. Fast forward a month or so ago and I hear an on-and-off squeaking noise when the brakes are applied. It does not happen every time. Usually when I ease onto the brakes to a slow stop.
Figuring it could be my pads going bad for whatever reason, I decided to check my brake pads and rotors again. No odd signs of damage on the rotors and by the looks of it there was still plenty of pad left. I then sprayed some brake clean assuming it could be dust but there wasn't much.
I have not touched the drums yet but I'm thinking it could possibly be the drums or a bad bearing? The car is a 2012 with 38k miles which is the reason I'm doubtful of it being a bad wheel bearing. What could it be?
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My 2012 Prius Two did something odd today that it's never done before. Today, after leaving a meeting, I had two instances where accelerating from a complete stop was met with a delay followed by a jerky and sudden acceleration. This only happened twice out of the dozen-or-so complete stops I made. This only happened on my first couple of complete stops, then never did it again.
Here is some pertinent information:
- Silver Prius, no tint
- Car sat uncovered for about 2.5 hours
- Was 96 degrees outside, not a cloud for miles
- Turned the car on, opened the front two windows for hot air escape
- Turned the AC on to full
- Sat parked but car running for maybe 30 seconds before reversing out of parking spot
- Rolled up windows
- Battery fan was going strong
- No indicator lights came on to suggest an issue
- Happened on my first two complete stops at stop signs
- Never happened again
- Battery fan eventually simmered down
- Have 55,000 miles on the car
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Our gen 1 has developed a (currently minor) noise issue when braking. I'd like to sort it out before it becomes serious.
The brakes are still strong, and the regenerative system appears to be working. When the brakes are applied (even gently) there is a pulsing raspy sound, seems like it is coming from the front, driver's side. It is more rapid at higher speeds, and louder during rapid deceleration. I guess I'd call it 'grinding', although this is much less unpleasant than the classic 'grinding brakes' I've heard on other cars.
In any other car I would figure a warped rotor or worn out brake pad. But I had imagined that the regenerative system handled light braking, and conventional brakes took over beyond a certain threshold. Now I'm hoping they work in tandem, even on gentle braking and this is just a boring, simple pad issue.
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I've had my 2011 Prius II for two months, and I love it. One little thing bugs me, however. I have noticed that sometimes when I apply the brakes, the car lurches forward a little bit. But I keep the brake pedal on, and the car does stop. Is there something wrong with my brakes, or is this something that has to do with the regenerative braking?
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I have a 2012 Prius with 15000 miles on it. In the year I have had it, I have had this problem a few times. On rare occasions while I am braking the car seems to lurch forward. In particular I have noticed it while braking and hitting a bump. The problem is that when this happens the car seems to jump forward while the brakes are being applied. My foot is on the brake when it happens, but I am not braking suddenly. That rules out any anti-lock braking. I have had the dealer look at it but since it didn't happen on their test drive they couldn't figure anything out. They did open a case on it in case anything comes up.
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Am a recent owner of an '06 Prius and like the car so far. The only fault is something I have never run into before. The brakes are very sensitive when coming to a stop. I find it almost impossible to feather the pedal and make the stop comfortable.
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I notice the brakes are very grabby right before you come to a complete stop. This seems to occur more when this brakes are cold. Is this typical with the gen 2's? Mine in a 2005 if that makes a difference. So far with 2k miles on the car I'm not a big fan of the brakes, but everything else I love.
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2005 Lexus RX330. 98K miles. 2 year intermittent problem. When apply brakes the front end shimmies until car completely stopped then go again & all is well until at some future time it happens again. Dealer checked twice & private repair checked also. Nothing found. Tires re-balanced & rotated several times. Newer tires with no issues. This is an INTERMITTENT problem. The rotors have been, new pads & spring installed.
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Coming to a left turn signal I was anticipating it turning red on me, and I drove into the turn lane briskly 30mph and then applied brakes as I made a u-turn. It sounded like a cross between dragging the front air dam and metal on metal brake grinding as I made the turn. Stopped immediately and did not scrap the air dam and all front end components checked out, okay. Car is driving just fine now, has only done this once.
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When I gently apply the brakes at slower speeds there is a single "click" noise. This happens every time. I took it to the dealer. They said it was normal. I am just trying to find out if indeed it is. Do other people get this click when they apply the brakes.
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My brakes are making a noise like a belt slipping when I'm at a complete stop. The noise only happens when I'm at a stop, brakes work fine. Lift my foot off the brake, noise goes away. Seems to be coming from front drivers side. What should I look for?
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