grabbing brakes - GreenHybrid - Hybrid Cars


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  #1  
Old 09-16-2006, 11:31 AM
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Default grabbing brakes

I notice that when I am braking gently, the brakes suddenly grab just before the car stops and it stops with a jolt. I think this is more noticeable becaause I attempt to brake slowly, but it's becoming annoying. Does anyone else experience this?
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Old 09-16-2006, 11:36 AM
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Default Re: grabbing brakes

Quote:
Originally Posted by alc13
I notice that when I am braking gently, the brakes suddenly grab just before the car stops and it stops with a jolt. I think this is more noticeable becaause I attempt to brake slowly, but it's becoming annoying. Does anyone else experience this?
Happens to me all the time, i would love to get it fixed, if indeed there is a fix for it.
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Old 09-16-2006, 03:36 PM
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Default Re: grabbing brakes

The only time I've experienced grabby brakes is when I'm in reverse. Weird.
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Old 09-16-2006, 05:11 PM
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Default Re: grabbing brakes

This could be caused by any or all the following;MG2, MG1, and the PSD. I don't think it's your brakes.
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Old 09-16-2006, 05:36 PM
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Default Re: grabbing brakes

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Originally Posted by David Price
This could be caused by any or all the following;MG2, MG1, and the PSD. I don't think it's your brakes.
Yes, I agree.
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Old 09-16-2006, 09:39 PM
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Old 09-16-2006, 09:57 PM
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Default Re: grabbing brakes

You may not be using your brakes enough. The TCH really does a great job of using regen to slow the car. Try doing a few stops from 30 or 40mph with the car in neutral. Regen is disabled in neutral, and the brakes alone will slow the TCH. Further stops in drive should be smooth now.

That should dry out your brakes and remove any surface rust/moisture that can cause grabby brakes. Unless you brake hard, the regen does almost all the "braking" until the TCH slows under ~7mph, at that point the disk brakes take over to finish stopping the car. My opinion is surface rust and/or moisture causes the brakes to grab slightly the first few stops as the TCH slows under 7mph.

Last edited by nash; 09-18-2006 at 08:52 AM.
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Old 09-17-2006, 11:03 AM
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Default Re: grabbing brakes

Thanks flopshot -- the link had some really good information.
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Old 09-18-2006, 07:41 AM
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Default Re: grabbing brakes

Also, just be mindful of when the brakes might have gotten damp (car sat in rain, etc.). Sometimes they are grabby until they they've been used a couple of times that day. In a normal car that happens right away usually at higher speeds where it's a lot harder to feel the extra friction (grabbiness?) so by the time the car slows down everything is back to normal. However with TCH regen braking it might not happen until the normal brake pads get applied at the last minute when the car has already slowed and you feel the grab at lot more. I've notice this once in a while on the odd morning and goes away after the first one or two "grabby" stops. I guess it's a price to pay for what should be super-long brake life.
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07, 2004, 2005, accord, altima, brake, brakes, civic, escape, fix, ford, forum, grabbing, grabby, honda, hybrid, nissan, prius

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