Brake failure in cold weather

I searched the 2004 forums, but didn't find an answer for my problem. I apologize if I miss it and ask you to send me the link. My 2004 Prius has 102K miles on it, never had an accident, brake fluid is at OK level. Never before in the 13 years I drive my Prius, this has happened, even in the coldest of weathers. However, for the second time this winter, two weeks apart, when temperatures were at about 25/30 F, the brakes did not work immediately when pressed and it took me pressing it several times to get the car to stop. When it finally stopped, it's was an abrupt stop. Roads are fine, no icy, no water, completely dry, no bumps. When this happens, ABS, break and VSC lights appear suddenly (they were not there when I started driving, only about 5-7 minutes after the car is running). It happened when I was driving, fortunately slowly, and I had to carefully take the car off the road. I was scared, with people honking behind me and getting mad because I was not going with the traffic flow. If I leave the car on and wait, all the lights will eventually disappear and the car will work fine. I'm afraid of driving it though and today I left it sitting on a random parking lot near my house. The car sleeps outside, not in a garage. The nearest Toyota dealership is 1 hour away and I will not drive there because I'm afraid this will happen when I'm at 70 mp. The tow will cost a good amount of money. Any suggestions of things I might try BEFORE having it towed? Thanks!

 

Thanks!

No, I'm not a mechanic/diy'er at all. However, I was reading in one of the threads something about moisture in the break fuel coil/pump (?) that disappears once the car is warm. Another thing, since my Prius is out of the warranty, would it be OK to bring it to a good in-town, mechanic (not Toyota specific)?

 

Thanks, I will.

 

Thanks so much! I called Toyota's costumer care center and they told me that I could take my car to a local garage and, if the problem is indeed the accumulator, they will refund me. The car is there now, but they will only be able to work on it next Tuesday.

 

An update. The mechanic just called and said that it's nothing major. Brake pads, low brake fluid, something in this mix (I didn't really understand the terminology) causing a bit of a leakage. $360 and my beloved Prius will be just fine. It's my intention to drive my car for many years to come. It's my four dogs' car after all and, despite it being old (as far as cars go) and very hairy, I love it. It surely has been the most reliable and problem-free car I have ever had. When my 2004 Prius crosses the Rainbow Bridge, I will get yet another Prius.

 

I didn't know this could be done. Thanks! I will surely investigate.