second problem with brake, (!), ABS, VSC

Red parking brake light on, and amber (!), ABS, and VSC lights came on. AGAIN. Very hot day, happened both times right as I was parking (unsure whether it was right before or right after.)

Last time (~1mo ago) I had it towed - and the dealership found nothing wrong with the car. They pulled historical codes for stroke sensor and open circuit in stop light switch but said there were no current issues and it was driving normally. They offered to replace fuses "if it would make me feel better."

This time (partly because of where I was) I drove it directly to another dealership. It would drive, but felt strange (heavy, almost?) and braking was jerky and intermittent (even with smooth braking on pedal.) It would lunge while braking like rocking back and forth, and while it was very severe right at the incident it was less so as I drove.

I love my Prius, and I am very sad to see this continue to happen. We'll see what they find. Hopefully soon, as everything is still within warranty.

Any ideas?

 

Thanks, Patrick.
I thought I'd share what the dealer said for others' benefit - they said that the brake pedal was severely miscalibrated, causing the ABS to activate both times. I had recently had the brake pedal recall service done (at the first dealership that was not able to find the problem.) Apparently this would cause the stroke sensor problem, all the warning lights, and the strange braking behaviors. They have repaired and are now doing thorough testing.

 

well, thought i would share again -- the second time has become the third time, and apparently the brake recalibration has not solved the issue. exact same problem as previously described. dropped it back off at the dealership this afternoon, and they were VERY nice - but i'm not sure that this is fixable. it's about a month between every occurrence.

my dad is encouraging me to talk to toyota about getting out of the car. i appreciate the dealership's hard work, but i think something may be /really/ wrong. and i am nervous now every time i drive this prius (that i love SO much.)

any thoughts are appreciated...