Prius (2010-12) :: Extreme Emergency Braking?
Mar 13, 2013
If the hydraulic brakes go out what is the best procedure to brake in a Prius? No, I don't envision this happening just a "what if"?
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Mar 13, 2013
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Lexus LS 2007+ :: Extreme Vibration In Front End When Braking At Highway Speeds (60+ Mph)
I replaced my tires yesterday with Bridgestone Turanza ER33 (245/45/19).
After replacing the tires, there is is an extreme vibration in the front end of the car when braking at highway speeds (60+ mph). Braking at sub 50mph speeds is completely normal. No lights, no vibration while driving. What could be the reason?
Also while removing the lug nut locks, the locks key broke apart (the black piece came out of the key). After like 45mins of trying, finally we got the locks out. I threw them away.
I searched online for regular lug nuts, but couldn't find any beside ebay. The local dealer says I need to wait for 3 weeks to get them from Japan! Where can I get a set of 4 regular lug nuts online?
I'm now running on 4 lug nuts on each wheel. Could this cause a problem? Could the vibration be caused by not having a 5th lug nut in place?
Prius (2010-12) :: Emergency Flashers / Blinkers Do Not Work Anymore
I bought a car a month back and i just realized a few days ago my front emergency flashers/blinkers do not work. The rear flash fine. the blinker alert on the dash was flashing very fast so I assumed I needed a new fuse. I replaced the fuse today and still no luck.
View 5 RepliesPrius (2010-12) :: Emergency Brake Cable Clanking / Slapping Noise
While the emergency brake was set, I happend to lean against the rear driver side of the the car and was surprised to hear a clanking, slapping noise coming from underneath the rear of the car; seemingly near the left rear wheel. What I think I'm hearing is the emergency brake cable (I assume this is a rear wheel cable brake) slapping against the vehicle frame or wheel axle. Even opening and closing the rear passenger door caused the cable to slap against the car.
This got me to experiment a bit, so I rocked the car back and forth and side to side. It's the side-to-side movement that causes the noise. The emergency brake works when set. The noise disappears when I release the emergency brake.
Prius (2010-12) :: All Lights On Dash Come On Including Emergency Icons When Starting
2010 Prius with 85k miles. Went to start car and here is what I get. All lights on dash come on including emergency icons. When I depress brake to shift into gear lights on dash go dim but not out. Car does not go into gear and neither does it show it going into gear on display. Heater was on and I tried to shut off the fan and again no response. Very difficult to get it to shut off. Pushed off 3 or 4 times and it finally responded. Been cold here in the teens and car has not been used for 3 or 4 days. Everything has been fine up to this point. No problems with anything.
View 10 RepliesGolf/GTI VI :: Flashing Brake Lights Under Panic / Emergency Braking
I have a stock '13 GTI with halogens and standard (non-LED) tails.
In VCDS, I coded the CECM to enable the brake light flashing under panic braking and also enabled the activation of hazard flashers under panic braking. Coding was accepted, no issues.
However when I did a driveby test yesterday with a friend watching, neither feature activated. I stomped on the brakes as hard as I could; ABS definitely engaged. So I was wondering a couple things:
Is there a minimum speed required before this will engage? I was probably going only about 35 mph when I hit the brakes.
Does this feature (at least the flashing brake light portion) require LED tails or will it work with the regular tails?
Looking on youtube videos of people who have activated this, it appears that they have both the flashing brake lights and flashing hazards activated at the same time so it would seem that's allowed by the CECM, yes?
Found a screen shot of the VCDS screen to show what I did:
I enabled BOTH bit 1 and bit 2. Some of the research I'm doing seems to hint that I should only be selecting one or the other?
Sonata I45 (LF 2015+) :: 2016 - Parking Assist And Auto Emergency Braking Inoperative
Looks like the front parking assist and auto emergency braking are inoperative. I have them selected in the settings but get no beeps or warnings. The back sensors are working and I get a display warning and tone. 2016 Sonata Limited ....
View 2 RepliesElantra MD (2010-15) :: Extreme Cold Weather - Front Suspension Noise
It's been extremely cold in the northeast recently (<20 degrees), and I've noticed that my suspension has been very noisy (clunking type noises) when I'm driving on uneven roads or bumps. Is this normal? Is there something I can do to alleviate it?
View 9 RepliesPrius (2010-12) :: Car Releases While Braking On Bump
I hit a bump while i was braking and the car felt like it was released from brakes while i still had my foot pressed on the pedal. I tried again on the same bump and it did it again.
View 5 RepliesPrius (2010-12) :: Clunking Noise When Braking
Brought mine to the dealership they can't find the knocking noise. I asked the technician to Test drove it but still can't find the problem. Technician on the passenger side and we test drove it. He was able to hear it, but can't confirm if its coming from the pads or rotors. Its pretty anoying when driving at night when the roads are quiet. You can hear it even with windows close.
View 4 RepliesPrius (Gen 3) :: 2010 - Grinding Noise When Regen Braking
The topic is as much as I can say to what my car's problem is.
2010 Prius II with 50k miles now.
Prius (2010-12) :: Extended Braking Could Harm Engine?
I have a 2010 Prius that I've owned for a little over 2 years. I know basically nothing about auto mechanics. When i purchased the Prius, I was told by the salesperson to use engine braking "B" as often as possible to extend the life of my brakes.
Although I don't live in a mountaineous region, I have found engine braking to be useful in the snow, in the occassional steep hill i come across, and also in my daily commute where travel is at 55 MPH with a stop light every half mile or so.
Prius (2010-12) :: Ticking Sound When Braking And Turning Right
When slowing to a stop and turning to the right, there is a ticking sound (not loud) coming from the front. The ticking rate slows as the wheel slows and continues until almost stopped. Break pedal pressure does not affect the sound. The dealer tech heard the sound on a demo drive but they had no clue what it was and found nothing wrong.
The tech, sitting in the right seat thought the sound was coming from the left side. I hear it coming from the right side. Maybe that means it comes from the middle? I only hear it when coming to a stop. Maybe road noise covers it up at higher speed but I don't know.
Currently at about 38,000 miles.
Prius (2010-12) :: No Charge Indication On HSI When Braking In Reverse?
Why, when braking in reverse, there seems to be no "charge" indication on the HSI...for example, backing down a long driveway, etc.
View 8 RepliesPrius (2010-12) :: VSC And ABS Lights Comes On When Braking At Stop Sign
Braking at a stoplight tonight, I had the VSC and ABS light come on. I pulled over to a parking lot and shut the car down. I couldn't tell any issues with the brakes at all in the short few hundred feet I drove to pull off. Turned it back on and the lights were no longer on.
View 8 RepliesPrius (2010-12) :: Strange Noise While Braking And After Turned Off
I have a 2010 Prius which I have had for a couple years. I get this strange noise from time to time that happens while braking. It starts, it will do it for a while, and then go away. When it's doing it, It will also happen after I turn my car off when the engine does it's shutdown phase. Occasionally, when my car is not moving and the engine is off, if I push my brakes it will do it too.
The noise comes from the driver side, by the firewall. the noise is a loud rachety sound, and it does not sound healthy or normal. I took my car to the Toyota dealership 3 different times explaining what was going on, but since it is random in when it happens, they have always told me everything looks normal. (of course I am out of my 1 year warranty too I got when I purchased it used.)
Is this noise something I should be worried about? What it is? Last thing I want to do is burn out some component of my car when I can save it now.
Prius (2010-12) :: No Regen Braking While HV Battery Overheats?
I had my scangauge installed at the end of Oct 2014 so I haven't had the chance to use it in the summer. I have also done the the Intelligent Power Module (IPM) recall about 2 months ago. I have never noticed this issue before the hot weather.
When the weather gets hot, the regen gradually lowers the recovery amp. Normally it can regen at over -90 amps. As weather gets hot, it limits the regen to about -65 amps max. When it gets hotter, the regen lowers down to -35 amps max. I can feel the car not slowing down as quick as at -90 plus amps. When the car has been sitting under the 100f+ for a couple of hours, regen is completely at idle (less than -20Amps.) Mechanical brakes take over. The car feels the same as -30amp regen, HSI shows it is regen braking. However, scangauge shows idle regen (less than -20Amp) and the slowing down is done by mechanical brakes.
Prius (2010-12) :: Louder Than Normal Regenerative Braking 27 To 7 MPH
Car makes louder than normal regenerative braking (Hybrid Sound). Seems normal when braking at high speeds... then when the speed drops below 30mph the sound is noticeable louder. See Video for example sounds while braking (17, 35 and 50 seconds into the video are most notable).
[URL] ....
Car drives normal other than the regenerative braking sound... Car was involved in a front end accident. Damages were repaired and seem minor. Front Bumper cover, hood, Radiator, Fans, RF Fender. Front cross member and other frame areas look untouched.
Prius (2010-12) :: Clicking Noise While Braking In Right Turn?
Just recently my Prius has been making a clicking noise when turning right and braking at the same time. It only happens during a right while braking and not while stopping straight or left. I only have 27K miles on it. I'm not due for an oil change for a couple thousand miles and was going to wait until then to mention it to the dealer.
View 18 RepliesPrius (2010-12) :: When Braking Over Uneven Surface Car Seems To Speed Up
I have had my 2010 Prius for 6 months and have noticed that when I'm braking over an uneven surface my car seems to speed up. It's a very uncomfortable feeling. Is this a characteristic of regen braking or is there something wrong?
View 10 RepliesPrius (Gen 1) :: Red Triangle After Having Car Parked In Extreme Rain / Heat Pop Up
I have had the red triangle after having the car parked in extreme rain/heat pop up when I start the vehicle 3 times in about 6 months. The first 3 times I did not have Techstream so I just cleared the codes, but the third time I finally read it and had those 3 codes, the first two I assume being most important. I clear the codes each time I see them and they stay off 1-2 months. About 140k miles on car. New 12V battery. No driveability issues. Car still gets decent 60 mpg in summer, 50 in winter. P3000 P3009 B2799
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