It's happened to me as well. It's the anti-lock brakes that will cause that to happen as with most cars when you go over a bump while applying the brakes. And, don't pump the brakes -- just use steady pressure.
I totally agree with you, there is no surging or accelerating. This happens to all cars when in this transition between anti-lock and normal braking and going over a bump in the road or braking while going over railroad tracks.Not this again! There must be a gazillion threads on this and the Prius boards. Besides, the class action was just settled, wasn't it?
It is not surging, it is just switching from regenerative to anti-lock brakes and the split second between them results in less braking while in between, but the car is not accelerating, it is just not braking as hard. It is the nature of the beast, although some people get so freaked out that they can't stand it.
Don, this most certainly does NOT happen to all cars. You must have only driven hybrid Toyotas!I totally agree with you, there is no surging or accelerating. This happens to all cars when in this transition between anti-lock and normal braking and going over a bump in the road or braking while going over railroad tracks.
No there is not a surge forward. That is physically impossible. Unless you have HUGE feet and hit the brake and accelerator at the same time, there is no power to surge the car forward. The class action resulted in a nominal amount for anyone that sold a hybrid while this dumb publicity was going on (and thus theoretically lost money) and zero for actual damages to the purported class. And a lot of money to the class action attorneys. Hardly a serious blow to Toyota. I am not aware of any scientific proof that there was any "serious flaw" having been demonstrated.Don, this most certainly does NOT happen to all cars. You must have only driven hybrid Toyotas!
I have never experienced this, and I have owned many cars.
This is a serious flaw in the otherwise spectacular hybrid system.
There is most definitely a surge forward and it's most disconcerting.
What were the results of the class action?
I am not sure that the computer thinks there is a problem, but for a very short time (measured in milliseconds), there is supposedly a reduction in braking power rather than no braking power, while the braking switches. That is what I was trying to say, but you said it better. There is no "surge", rather, there is a reduction in slowing down for an instant, and, while I am not privy to details developed by engineers, I am sure that this slight reduction is more than made up for by the increased ability of the anti lock brakes, so that the total stopping distance is shorter, or else, why bother to switch, in fact, why bother to have brake pads at all? The point was that there is no acceleration, it is simply a reduction of the deceleration momentarily.i thought that when you go over bumps while braking, the computer thinks there is a problem and the "surge" is actually no braking power while the car switches from regen braking to physicals pads braking
The brake calipers do not lose frictional grip on the rotors when you go over a bump; Now your tires might loose contact, but not the brake calipersI have experienced the "surge" on not only my CT200h, but other Non-hybrid Toyotas as well. What I have noticed is when I hit a bump or pothole in a certain way, the brake calipers loose frictional grip with the rotor which feels like you let go of the brakes, even though they are still pushed down. A second or two it usually returns to normal or if I rapidly red gaged the brakes after clearing the bump, normal operation resumes. It only happens on lower speeds under 25 mph, and has not occurred at highway speeds. It is not enough of a problem for me to want to choose another manufacturer since the problem is infrequent enough and problems with other makes are far more numerous.
That's probably more hydroplaning than anything else.Once it was under huge rain and i tried to stop over a water puddle and the car does this again and it really scares me.
I strongly suggest that owners who are concerned with this perceived braking problem speak to a Lexus service manager or book their cars in for a service to resolve the issue. Personally, I think their experiences relate to the characteristics of ABS under some circumstances.[/QUOTE
Why? They aren't going to believe what they are told. They will continue to believe that the brakes are faulty no matter what they are told or shown.