I think my 2007 with 68k is experiencing the same thing. I hear the noise much more often than I have in the past, every 15-30 seconds while driving at low speeds around town. I have an extended warranty that is good until August of 2013, but I might be bringing it in to have them check it out before it triggers warning lights. I'd hate to have it go out on a trip.

Well crap. This JUST started happening on my 07 a couple of weeks ago. I notice it one day when driving home from work. It was a nice day so I had the windows down and from the time I entered my neighborhood to the time I got to my house (about 1 mile) I heard this noise every few seconds. This is NOT good. As has been stated over and over again, this is not the kind of quality (or lack there of) that I expect from toyota.

This started happening to my 2007 Camry Hybrid too recently. The car has only 42K miles and I started hearing the more frequent noise coming off the ABS pump, specially when the car is idle and most recently I hear a different noise when I fully press the brake pedal. I took to my dealer last week and was told I need to replace the "Actuator Assy, BR" part "44050-30300". They quoted me $2,629 but told me the would give me a 25% discount and quoted $560 for labor. I know I can get it online for much less so I'm not even worried about their quote.

This does not affect the brakes function but can eventually fail and the ABS won't work. I do agree this seems like a premature failure not typical of a Toyota and I even read they redesigned this pump in newer models as they knew about the failure so I'm thinking it is at least worth writing Toyota a letter and see what they come back with.

I read in another place recommendations to be buy it used and even DIY install it. I'll weigh my options when it actually fails as I'm not ready to spend $2k to repair it.

I have a 07 TCH and get the same every 15 seconds noise starting with when I first open my door. It started after about the second oil change but I remember the dealer saying it was okay. The noise became louder more recently so I took it to the dealer this week out of warranty and they told me that this was a normal sound and nothing was wrong. Well I told them that the unit sprayed some fluid up towards the underside of the hood. I showed them where the stain was from the brakes and when I got my car back the next day they steam cleaned the leaking break fluid and the pretty much the entire engine. I was really confused when they told me the sound was normal. The reason they kept my car overnight was to fix a bad water pump and change fluids.

Toyota needs to recall and fix our problems breaks.

My 2007 TCH when rather new would pump up the ABS for 5 to 10 seconds. After 5 years of driving it still happened about the same length of time.

Before I traded my car I dropped by the dealer and had their certified toyota tech to look at my liquids. He added a little brake fluid which was mounted on the firewall. He also added about a inch of pink coolant to the reservoir and just a little to the inverter bottle. I had been keeping a eye on the liquids monthly for all those years. The car only had 38000 miles on it when I traded for the '12 TCH.