Prius (2004-09) :: Brake System Failure After Changing Front Pads
May 25, 2011
2004 prius. I change the brakes on various cars all the time, and never had this problem. After I changed both sides, I started the car, and saw 4 lights:
- Red brake light
- The yellow exclamation light
- ABS light
- VSC light
The car now stops funny, and reading the service manual, it says that if there's a failure detected, that it will revert back to very basic braking (no abs, only fronts, etc..)... As I was exiting off the fwy, I realized this when one of my front wheels locked up, even and I was not stopping very well. Scared the crap out of me.
In any case, I can't see what I may have done which would cause a failure. The only thing I could think of is to bleed the brakes again, but I did this and think it's ok. Is there anything else I can check or is this something I have to get serviced? I saw another thread where they suspected the actuator, but it is somewhat a coincidence that it would go bad after I replace the pads? I'm not sure how the regenerative brakes works on a prius, and whether there's anything I could visually inspect to see if I bumped something???
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I changed the front brake pads, took all the precautions during the change, did not disconnect the 12 v battery, pumped the brake pedal 12 times, started the car and no warnings. Now the brake pedal is a little spongy, if I press the pedal to the floor the VSC/TRAC light comes on, to reset it I have to press on the pedal again and the brakes do work.
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Just got out of the dealer they said they recommend front brake change. They quoted me for ~730 just for Rotors/Pads/labor on the front (I am going to shop around).
I tried search Golf R Brakes info prior to posting but alot of the searches are for people buying Golf R brakes for Gti's.
1) Do I need to Replace Both Rotors and Pad at the Same time?
2) Currently Car is still stock and see's no tracks, the most car would see in the next 2 yrs would probably be stg 2+ if that. Would OEM Rotors + OEM pads be sufficient? or should i upgrade pads? Below is listing i found with some different pads options.
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3) Car is currently a 47.5k miles with oem brakes, should i just replace rears as well? even though dealer did not recommend?
4) SS Brake Lines, should i get them?
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Scion TC for Camry SE 2007.
I changed the front brake pads and resurfaced the rotors. After putting everything back together, I took the car to test drive it. The stopping power is fine and there is no squeaking or robbing sounds. However, when I apply the brakes at lower speeds moving forward there is knocking sounds the comes with the tire rotations. What is the reason for this sound?
This is my second time changing the pads and rotors, with the first with no issues. I put grease between the shams and the pads, and I sprayed the rotors with brake cleaner before the installation.
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I replaced the front brake pads the same method as a traditional car. (Popped out caliper. Pushed piston in. Put new pads in). I did not pump the brakes after installation (forgot to do so).
I drove off to test drive. A block later as I approached a stop sign, I smelled something similar to burning brakes (this might have been some of the oil I spilled when I added oil just before I left). Went to the next stop sign 100 yards away and was able to stop. Made a slow left turn and MFD displayed a warning and ABS (and maybe other ones too) light came on. I pulled over. I don't remember if the car shut itself or if I turned it off.
Now, I can not get the car started. Had car towed home with wheel lift tow truck.
Tried the following:
- Press brake, push Start: Car appears to power up then shuts down immediately. Lights appear on dash, then go out. The squares around P,N,D,R,B are the last ones to go out.
- Press start to go into ACC mode: Radio and clock power up without problems. Pressing start again results in same symptom above.
- Tried to read code with ODBII scanner: all I get is "ERROR". Appears that it's not linking.
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I am going to have to change my brake pads (I am probably going to do the rear shoes as well). I was wondering if I should get my Toyota dealer to change the fluid as well. I have 116,000 miles on her. Lots of highway driving, and this is only the first replacement set, these pads last forever. The fluid has never been changed before.
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So, I changed the front brake pads on my 2007 Prius blindly, and in doing so I bled the lines (I also had the key in my pocket!). Now, the ABS light, VSC light and (!) light all are on and continue to stay on while driving. Is this something as simple as resetting the codes? Is the vehicle safe to drive to a repair shop to set strait?
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i have the brake (!) the ABS and the VSC lit up after i got new bearings and new brake pads and rotors, the car was also stalling before the mechanic removed these bearing "dust cover" circles that must have been causing speed sensor interfernce bc the spedometer was stuck on 0....so the car seems to be done stalling after those were removed and all the big lights went off then i hit the brakes a few miles later and those three lights came on...
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What is the proper procedure in changing the brake pads without unbolting the caliper?
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I changed my headlight bulbs yesterday with D4S bulbs with 12K purple. After driving about an hour, the dash popped up a message saying headlight system failure, have dealer check headlight system. Both headlights are still on. I'm wondering why it is doing that? Hate to go back in and change it out again. It was a pita to change the bulbs.
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Having brake pads making noise while driving on war zone like roads? Sounds like the front end is falling off. It started after a front brake job. Dealer then replaced all the clips and it was fine for six months. Now starting to make noise again.
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I noticed the front brake pads were touching the rotors when I was painting the brake calipers. I had my e-brake engaged and in park. I'm assuming the e-brake only brakes the rear wheels because the front rotors were still movable. Although the car still rides fine but I'm not sure if this is normal.
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This started recently and suddenly during our recent snow. It sounds like the pads have worn down. Only happens at very low speed, not immediately at the point where the disc brakes cut in (>7mph?). Apart from the sound, the braking action feels normal and it stops fine.
The pads were only replaced a few months ago. Done 106,000 miles now, and no more than 2,000 since pads replaced.
I had thought it might be some grit caught between disc and pads but it would have cleared by now and there are now obvious signs on the disc of anything.
What would I be best to remove the wheels and take a closer look. Also, is there a wear sensor on the pads?
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My wife was driving our 2009 prius this morning. she said the red triangle, this other yellow circled, light with an ! came on plus in the display window the car icon with the ! came on. Manual states that this is a hybrid system failure.
On very cold mornings the car smells very hot for a period of time. She said this happened again.
I tried to do a reset (turning it off and on atleast 4 times) did not work. So I had it towed to a dealer tonight and I started it again and this time very hot smelling and a whole lot more lights were on, ( brakes lights, almost all of the lights I would say.)
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Actually 2 very similar questions about my Prius 2007.
1. My water pump was replaced by a dealer due to failure some half a year ago at 95,000 miles. Yesterday, after oil change (98,000), I was told it is recommended to replace engine coolant. Does this sound right? Don't they change coolant when replacing the pump?!
2. Identical question about HV pump. It was replaced at 80,000. Now they recommend do change the coolant for hybrid system. Don't they have to do it when replacing the pump?
I want to do everything necessary to maintain the car. But don't want to spend money for something that is not needed.
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Driving yesterday, (slowly down bumpy gravel road). My 2005 Prius locked up, the red BRAKE and the yellow (ABS) indicator lights came on. The car wouldn't go forward or back. I tried setting the emergency brake then releasing it - nothing. Still couldn't go forward or backward. I shut it off, turned it back on, nothing, tried setting the emergency brake then releasing it - I finally was able to drive, but the indicator lights were still on and when I tried to brake, there was nothing, nothing, nothing, then BAM the brakes grabbed and locked up. (This happened several times in a few blocks as I was cautiously trying to test the car out.)
I parked got out my owners manual which said "STOP, contact Toyota Dealer" so I had my car towed (first time ever for her to be towed) to my mechanic (he's out hunting, so someone else at the shop looked at it.)
The shop called and said it was showing a code of 1247 and said that it was a "malfunction of the brake pedal". They said they cleared the code and the lights went out. Their mechanic is going to take it for a test drive trying several 'braking scenarios'. (they better not wreck my car).
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Two weeks ago a large, industrial truck dropped a piece of bent steel pipe on the interstate in front of my 2010, 50k miles, Prius and (sadly) I was forced to hit or swerve into rush hour traffic and cause an accident. It tore up a good part of the cooling system and did some body damage. Of course I didn't know this at the time, but it began to overheat, so I pulled off the freeway and had it towed to a body shop. After about ten days, I got my Prius back.
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I start car today morning and I got message at display: STOP CAR BRAKE SYSTEM FAILURE MANUAL. Message was gone after 3 seconds. Happened 3 times and I don`t see it again. I was still driving. Nothing is wrong. Brakes are working. What is it?
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Today as I was adding pressure to my tires I noticed the front brake pads were wearing unevenly. Both outer pads wore the same. More "meat" on the inner section of pads than on the outer, evenly worn, just sort of slanted down as you move out towards the outer rim of the brake disk.
Is this normal? What would cause this? Should I have it looked at? I've never seen anything but even pad wear, perfectly parallel to the brake disk.
Edit for these pictures to clarify.....
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Having trouble with front brake pads rattling? About a month ago, I replaced pads - rotors - caliper pins on my 20th GLI. I know these cars ride a bit stiff but it sounds like my front end is about to fall off. All brake parts were torqued to spec - I've gone through all T25/T30 torx front end screws etc and I just can't find the rattle??? This has only started within the last few days. Any other places to check for obvious loose bolts etc?
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The front pads on the R shift from one side of the caliper to the other whenever I move from forward to reverse they make a loud "clack". I thought it might be an O.E. pad issue, but I've changed the pads out to EBC's, but still no bueno. The new pads fit snuggly into the calipers and seemed to have solved the problem at first, but about 5k km's in, they're making the same noise.
I have anti-rattle springs installed, but they're not working. Is there supposed to be a pair of shims between the caliper sliders and the pads grooves that the previous owner removed for some reason? I don't think so, because that car only had 25k km on it when I purchased it; but you never know.
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