Prius (2010-12) :: Extended Braking Could Harm Engine?
Feb 18, 2013
I have a 2010 Prius that I've owned for a little over 2 years. I know basically nothing about auto mechanics. When i purchased the Prius, I was told by the salesperson to use engine braking "B" as often as possible to extend the life of my brakes.
Although I don't live in a mountaineous region, I have found engine braking to be useful in the snow, in the occassional steep hill i come across, and also in my daily commute where travel is at 55 MPH with a stop light every half mile or so.
View 19 Replies
Advertisement
Tonight I needed to stop at a red light. The distance to the light was on the short side, so I braked somewhat firmly - but not hard like a panic stop. The road was dry but somewhat bumpy (I think it had some patches across it from some digging that'd been going on.) But it wasn't so bumpy that you wouldn't just drive normally on it. When I braked, the car kept on going. I saw the traction control light come on, and eventually the car stopped at the light. But if there'd been another car ahead of me, this might not have ended well.
View 19 Replies
I've been driving a bit different to try and get some more mpg. I will pulse up to about 45 then let off till ev kicks in and keep the bar right at the verge of going into ice. I can usually cruise at 40 mpg doing this on flat roads while only using the battery. Although if I'm able to do this ev mode for a long distance my battery runs down then the ice kicks in even with the bar below the ice line.
I'm still only getting 50-51 indicated mpg this way but much better than the 42mpg I got just driving it... My route has some hill and my tires are no lrr so I'm think that's has some to do with my low mpg.
Question is does driving 40 mph in ev mode till battery runs dead then recharge with ice just to run battery down again coasting with ev do any harm to the battery?
View 19 Replies
Yesterday we were on a 10 hour trip and the engine was acting oddly; when braking, the engine sounded just like the engine brake, but the MPG indicated that it was consuming fuel (engine brake does not consume fuel). When braking, the engine would sound, and the MPG indicator indicates fuel consumption, it would go down to 50, with the heavier braking, like when stopping... then at a certain point it would suddenly stop
It seemed to happen most times but not always. This issue didn't happen before.
View 8 Replies
I hit a bump while i was braking and the car felt like it was released from brakes while i still had my foot pressed on the pedal. I tried again on the same bump and it did it again.
View 5 Replies
Brought mine to the dealership they can't find the knocking noise. I asked the technician to Test drove it but still can't find the problem. Technician on the passenger side and we test drove it. He was able to hear it, but can't confirm if its coming from the pads or rotors. Its pretty anoying when driving at night when the roads are quiet. You can hear it even with windows close.
View 4 Replies
If the hydraulic brakes go out what is the best procedure to brake in a Prius? No, I don't envision this happening just a "what if"?
View 18 Replies
I've read other posts where owners report using previous gen for camping trips and leave the car on all night for AC/Heat. I have a similar but much shorter timed use case. When my wife is in shopping, I use my car as an office with laptop and phone going, and usually just bear the very hot days while parked for an hour, sometimes two. Would the 2016 Prius provide the opportunity to keep the car on in this way, and is there any detriment to its motors or electronics when keeping it on like this for extended periods of time.
View 19 Replies
The topic is as much as I can say to what my car's problem is.
2010 Prius II with 50k miles now.
View 19 Replies
When slowing to a stop and turning to the right, there is a ticking sound (not loud) coming from the front. The ticking rate slows as the wheel slows and continues until almost stopped. Break pedal pressure does not affect the sound. The dealer tech heard the sound on a demo drive but they had no clue what it was and found nothing wrong.
The tech, sitting in the right seat thought the sound was coming from the left side. I hear it coming from the right side. Maybe that means it comes from the middle? I only hear it when coming to a stop. Maybe road noise covers it up at higher speed but I don't know.
Currently at about 38,000 miles.
View 12 Replies
Why, when braking in reverse, there seems to be no "charge" indication on the HSI...for example, backing down a long driveway, etc.
View 8 Replies
Braking at a stoplight tonight, I had the VSC and ABS light come on. I pulled over to a parking lot and shut the car down. I couldn't tell any issues with the brakes at all in the short few hundred feet I drove to pull off. Turned it back on and the lights were no longer on.
View 8 Replies
I have a 2010 Prius which I have had for a couple years. I get this strange noise from time to time that happens while braking. It starts, it will do it for a while, and then go away. When it's doing it, It will also happen after I turn my car off when the engine does it's shutdown phase. Occasionally, when my car is not moving and the engine is off, if I push my brakes it will do it too.
The noise comes from the driver side, by the firewall. the noise is a loud rachety sound, and it does not sound healthy or normal. I took my car to the Toyota dealership 3 different times explaining what was going on, but since it is random in when it happens, they have always told me everything looks normal. (of course I am out of my 1 year warranty too I got when I purchased it used.)
Is this noise something I should be worried about? What it is? Last thing I want to do is burn out some component of my car when I can save it now.
View 4 Replies
I had my scangauge installed at the end of Oct 2014 so I haven't had the chance to use it in the summer. I have also done the the Intelligent Power Module (IPM) recall about 2 months ago. I have never noticed this issue before the hot weather.
When the weather gets hot, the regen gradually lowers the recovery amp. Normally it can regen at over -90 amps. As weather gets hot, it limits the regen to about -65 amps max. When it gets hotter, the regen lowers down to -35 amps max. I can feel the car not slowing down as quick as at -90 plus amps. When the car has been sitting under the 100f+ for a couple of hours, regen is completely at idle (less than -20Amps.) Mechanical brakes take over. The car feels the same as -30amp regen, HSI shows it is regen braking. However, scangauge shows idle regen (less than -20Amp) and the slowing down is done by mechanical brakes.
View 1 Replies
Car makes louder than normal regenerative braking (Hybrid Sound). Seems normal when braking at high speeds... then when the speed drops below 30mph the sound is noticeable louder. See Video for example sounds while braking (17, 35 and 50 seconds into the video are most notable).
[URL] ....
Car drives normal other than the regenerative braking sound... Car was involved in a front end accident. Damages were repaired and seem minor. Front Bumper cover, hood, Radiator, Fans, RF Fender. Front cross member and other frame areas look untouched.
View 15 Replies
Just recently my Prius has been making a clicking noise when turning right and braking at the same time. It only happens during a right while braking and not while stopping straight or left. I only have 27K miles on it. I'm not due for an oil change for a couple thousand miles and was going to wait until then to mention it to the dealer.
View 18 Replies
I have had my 2010 Prius for 6 months and have noticed that when I'm braking over an uneven surface my car seems to speed up. It's a very uncomfortable feeling. Is this a characteristic of regen braking or is there something wrong?
View 10 Replies
Experiencing a noisy engine....especially when braking or coasting to a stop?
View 5 Replies
I don't see any mention of the role of the transaxle differential. Others have correctly pointed out that regenerative braking acts only on the front wheels, but it also important to note that the regenerative braking torque is transmitted from the transaxle to the wheels via differential gears.
Thus when braking traction is lost on one front wheel (due to a wet manhole cover, bump or whatever), braking torque is also lost on the other front wheel. The effect is a noticeable instant of "no braking" and takeover by the ABS. Or perhaps the driver takes over by pressing the brake pedal further and activating the hydraulic brakes (this should happen instinctively, and quickly since the driver’s foot is already on the brake pedal).
View 3 Replies
The noise is not the usual vibrate noise that happens.
The Noise: As I brake harder to the final stop I hear a grind/bump noise. It is hard to describe. It is abrupt and quick. I don't believe it affects the braking just annoying and doesnt sound normal.
View 5 Replies
I've been noticing that when I brake more responsively, I feel a bump/notch right before a complete stop. It feels like something that has to do with the transmission.
View 6 Replies
