Last post on Jul 28, 2013 at 8:39 AM
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Toyota Prius, Hybrid Cars
#7085 of 7508 Prius Brake Pedal Noise
Dec 20, 2006 (11:51 am)
We have a 2006 Toyota Prius (package 3 I think)that we bought new in late August 2006. We are relocating and have driven from VA to NY a bunch of times and have put about 7500 miles on it by mid-Dec. So far the car has been great and drives well.
We took a short trip to Snowshoe Mtn WV and after it had been parked at mountain top for a day (4500' elevation and it stayed above freezing) a 'chirp' developed when the brake pedal is depressed (moving or not). At first I thought it was my rubber boot sliding on the pedal and making the noise. Was not that. Very light pressure on the pedal did not cause the noise and did engage the brakes a bit, but depressing it more than 1/2 inch would cause the chirp from behind the dash near the pedal, fairly loud, not coming from the brakes.
The next day as we left the mountain it still made the noise. As time went on (and we got down the mountain) the chirp got quieter and now is gone.
Any thoughts or suggestions?
#7086 of 7508 Re: Prius Brake Pedal Noise [gpost]
Dec 20, 2006 (1:18 pm)
I've read others reporting this chirp. The consensus was it is the brake pressure pump starting up. As the car can not rely on the engine running for vacuum for the brake booster there is a pump in the car that takes the place of manifold vacuum. So it appears to be "normal". BTW, some of the other reports I've read reported the chirp starting after a visit to a mountain pass.
#7087 of 7508 roof racks
Jan 03, 2007 (1:14 pm)
Anybody have experience with roof racks on a Prius? I like to carry skis in "Rocket Box" and haul my bikes around on top as well. How nuch does the mpg suffer? Does the car suffer from the drag? Thanks.
#7088 of 7508 Re: Third party upgrade for CD Changer and Sat Radio? [akoller]
Jan 03, 2007 (4:48 pm)
I own two cars with 6 disk CD changers and XM radio. I rarely use the CD changers and almost always listen to XM radio or NPR. In other words, I'm not sure I would go out of my way to buy a 6 disk changer again. Hope this helps. JGWDDS
#7089 of 7508 Re: Third party upgrade for CD Changer and Sat Radio? [akoller]
Jan 18, 2007 (12:04 pm)
Give Crutchfield a call. Sorry delayed response, new to this board.
#7090 of 7508 Re: Prius Brake Pedal Noise [gpost]
Jan 20, 2007 (11:42 am)
I am researching the Prius brake Noise (chirp). This noise started in my 2006 Prius (at less that 8,000 miles). I noticed it during my commute in the San Francisco Bay Area. We have driven the car up and over the Sierra Nevada mtns. once - but the noise did not start on that trip. I have had the car into the dealer 3 times for repair. The noise escallated to happening every time I started the car; whether or not the brake was depressed. The technician diagnosed the problem as part of the ABS system. The brake actuator was was replaced. The noise reappeared after several weeks, and Toyota recommended that the brakes be bled due to the possibility of air in the lines. That was done. The repair lasted a couple of weeks and reappeared again. Toyota sent a technician to my local dealer to evaluate the issue. His recommendation was to bleed the system again. I do not have confidence that this is the final solution since it's does not appear that the source of the problem has been found.
In addition to the chirp, the car developed the rough stopping issue also reported by others. It's as though the brakes were grabbing - a smooth stop was not possible by anyone driving the car. The solution for this was to resurface the rotors, and sand/clean the brake pads. This seems like an inappropriate issue for a car with 11,000 miles - mainly freeway driving.
I'm interested in hearing from others who are having similar issues.
#7091 of 7508 Re: Prius Brake Pedal Noise [ltnunes]
Jan 20, 2007 (5:44 pm)
Nothing like this yet on mine. 14 mos's and 37,000 mi.
I have a friend who's at 36 mo's and 135,000 miles with no issues at all save worn fabric and he's still on his original brakes.
#7092 of 7508 Toyota quietly puts first incentives on Prius
Feb 05, 2007 (6:07 am)
News Item from Automotive News:
Amid all the recent talk in Washington about raising fuel economy standards, Toyota Motor Sales U.S.A. was quietly trying to work off a backlog of unsold Prius hybrids by offering the first incentives on the fuel-saving hatchback. Seven of Toyota's 12 U.S. sales regions were offering a low lease payment, cut-rate finance deals or cash to the dealer for each unit sold.
#7093 of 7508 Re: Toyota quietly puts first incentives on Prius [c2rosa]
Feb 05, 2007 (6:58 am)
The Automotive News article also points out that Prius sales DROPPED in 06 compared to 05.
#7094 of 7508 Re: Toyota quietly puts first incentives on Prius [kurtgg]
Feb 05, 2007 (7:27 am)
A very slight drop, and expected with the availability of the Camry hybrid in 2006.