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Discussion Starter #1
Hi there,
I purchased a 2013 Volt a few months ago. I have noticed that at the end of my braking, there is an audible creaking/screeching/groaning noise...not exactly sure where it comes from. I thought it might be the rotors/brake pads or maybe a component of the regenerating system. I took it in to a Chevy Dealer near my house. Of course, I could not replicate the noise as the battery was depleted and the gas engine noise obscured the brake noise. They inspected the brakes and said everything looked fine. They charged the car and I came in the following day and again, could not replicate the noise. Likely occurs after some use and not first thing in the morning. NO shaking of the car when I brake at freeway speeds. Has anyone had similar noise concerns from their Volt? And if so, any ideas as to cause?
Thanks!
 

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Are you going over bumps when this occurs? There have been some "creaking" suspension over speed bump issues, or upon turning issues. Related to rear axle lube or replacement.
 

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It could be the infamous "skill saw wind down noise". Caused by the outboard bearing in the main drive motor. Noticeable in braking regeneration. Drive in Low and see if you hear it when slowing down without pressing the brake pedal at all.
 

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Thanks for the responses. Edk-austin, I did have the noise issue with the rear axle which Chevy did replace already and that noise went away. Caronjeff, I've come to a near stop with L gear and no noise. It occurs only after the end of braking when the car goes from slow to complete stop. It is a short lived groan or creak. Doesn't occur all the time. Also occurs when I'm stopping on reverse.
 

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Thanks for the responses. Edk-austin, I did have the noise issue with the rear axle which Chevy did replace already and that noise went away. Caronjeff, I've come to a near stop with L gear and no noise. It occurs only after the end of braking when the car goes from slow to complete stop. It is a short lived groan or creak. Doesn't occur all the time. Also occurs when I'm stopping on reverse.
This $10 hardware kit might be the solution. Check out these posts:
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http://www.gm-volt.com/forum/showpost.php?p=3416714

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Carlson H5852Q Disc Brake Hardware Kit
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This might be as simple as some rust on the rotors due to limited use (most braking is regen. Friction brakes are used at low speeds and heavy braking.)
Easy cure: when exiting the highway, shift to N (to deactivate regen) and brake normally. Do this a couple of times and the rust will be gone. No low speed squeak.
 

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It is not a rust issue. My neighbour said it is normal brake noise. It is only audible under very quiet conditions. But, it b doesn't always happen. You really have to listen to it to appreciate it. It is a rubbing noise....a groan is possibly the best way to describe it. Oh well, maybe I'll get used to it or it worsens and someone will figure it out....:expressionless:
 
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