# 2018 Buick Regal - Brakes and suspension aging

**URL:** <https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897>\
**Category:** Maintenance/Repairs\
**Tags:** buick\
**Created:** [August 21, 2024, 7:57pm UTC](https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897 "2024-08-21T19:57:03Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Gregs00](https://avatars.discourse-cdn.com/v4/letter/g/a3d4f5/32.png) [@Gregs00](https://community.cartalk.com/u/Gregs00)\
**Post date:** [August 21, 2024, 7:57pm UTC](https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897/1 "2024-08-21T19:57:03Z")

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1. rear brakes are not cleaning disc, why?
2. go over bumps and car sounds very clunky, like shocks aren’t doing their job. Car is a Regal Tour x

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**Author:** ![weekend-warrior](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/weekend-warrior/32/26122_2.png) [@weekend-warrior](https://community.cartalk.com/u/weekend-warrior)\
**Post date:** [August 22, 2024, 12:24am UTC](https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897/2 "2024-08-22T00:24:44Z")

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The first 2 are recalls for your brakes. and the bottom link is a service bulletin which is probably your clunk.

[RCSB-18V576-6718.pdf (nhtsa.gov)](https://static.nhtsa.gov/odi/rcl/2018/RCSB-18V576-6718.pdf)

[RCLRPT-22V465-3881.PDF (nhtsa.gov)](https://static.nhtsa.gov/odi/rcl/2022/RCLRPT-22V465-3881.PDF)

[05-03-08-002I 1…4 (nhtsa.gov)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10195128-9999.pdf)  
And if your hearing noise in the front I have found this…

[18-NA-163 1…2 (nhtsa.gov)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10178952-9999.pdf)

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**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\
**Post date:** [August 22, 2024, 9:25pm UTC](https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897/3 "2024-08-22T21:25:41Z")

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+1 for WW above! Who would have thought that some sort of mysterious trapped hydrogen gas could come out of a caliper piston, lodge in the brake lines, and adversely affect the rear brake grabbing power? And why would it wait 6 years to do it?

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**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\
**Post date:** [August 22, 2024, 11:04pm UTC](https://community.cartalk.com/t/2018-buick-regal-brakes-and-suspension-aging/195897/4 "2024-08-22T23:04:06Z")

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Rear brakes generally don’t apply as much braking force as the front, rust build-up on the rear rotors is not unusual.

There are no recalls that apply to the Regal TourX model.