# Hearing Crunching Sound In 2015 Chevy Cruze - 2 Video Links Included

**URL:** <https://community.cartalk.com/t/hearing-crunching-sound-in-2015-chevy-cruze-2-video-links-included/191068>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, cruze\
**Created:** [June 9, 2023, 4:13pm UTC](https://community.cartalk.com/t/hearing-crunching-sound-in-2015-chevy-cruze-2-video-links-included/191068 "2023-06-09T16:13:03Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Michelle-Denise](https://avatars.discourse-cdn.com/v4/letter/m/439d5e/32.png) [@Michelle-Denise](https://community.cartalk.com/u/Michelle-Denise)\
**Post date:** [June 9, 2023, 4:13pm UTC](https://community.cartalk.com/t/hearing-crunching-sound-in-2015-chevy-cruze-2-video-links-included/191068/1 "2023-06-09T16:13:03Z")

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I have been hearing a crunching sound in my new (used) 2015 Chevrolet Cruz since I bought it on April 27th. The shop could not hear it but I realized that I could record it with my iPad.

The sound occurred every time the car was sitting for a while and it would happen around the time I got to 10 mph. Sometimes (I think) 20 mph. Never higher than that speed. Always after it had been sitting for a while. A few times, I heard it after the car sat for about 10 minutes but mostly after it sat for a while or over night/a few hours. I can feel the vibration when I hear the sound. I have included two videos that I made. What could this be? Please help! Thank you! God bless you! Please read the video description to see exactly where the sound occurred.  
Video #1:[Michelle Donnatien - Chevrolet Cruz 2015 - Crunching Noise - YouTube](https://youtu.be/W4ilmI7BD00)  
Video #2:[Michelle Donnatien - Video 2 - Crunching Sound - Chevrolet Cruz 2015 - YouTube](https://youtu.be/zkxgbgp8gLI)

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**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\
**Post date:** [June 9, 2023, 4:19pm UTC](https://community.cartalk.com/t/hearing-crunching-sound-in-2015-chevy-cruze-2-video-links-included/191068/2 "2023-06-09T16:19:00Z")

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If the car sits for a few days rust builds up on the iron brake rotors. The first few times you apply the brakes, it cleans the rust off. I think that is the noise you hear. Iron rotors must be bare to work properly and they will rust as all iron does. This is normal. It is not a safety issue or a maintenance issue. It can be more noticable on some cars than others… like yours.

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**Author:** ![VDCdriver](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/vdcdriver/32/30_2.png) [@VDCdriver](https://community.cartalk.com/u/VDCdriver)\
**Post date:** [June 9, 2023, 4:28pm UTC](https://community.cartalk.com/t/hearing-crunching-sound-in-2015-chevy-cruze-2-video-links-included/191068/3 "2023-06-09T16:28:27Z")

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I can’t hear anything unusual on your recordings, but from your verbal description, I am 99% sure that you are hearing the normal ABS-self test. On some makes and models, the self-test is barely noticeable, but on others–like the Cruze–it is loud enough to alarm people.

> **[Startup Grinding Noise (Normal - It's the ABS Self...](https://www.cruzetalk.com/threads/startup-grinding-noise-normal-its-the-abs-self-check.5764/)**
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> Does your Cruze have a grinding/pulsating noise that's felt through the brake pedal that lasts for a split second every time you start the car and get going 10-15 mph? :angry:
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> It's normal. It's the ABS system doing a self-check every time the...

👆