Knocking noise caused by... body flexing?

[tubnotub1]

My 2013 Sonic LT has 10K miles on it. Over the last 1k or so it has developed a singular "knock" when the vehicle is in reverse going up an incline while turning either to the left or right. The knock sounds as though it comes from the front suspension and is accompanied by a mild tactile "bump" in the cabin. I took the vehicle to a dealership today to get it checked out and was told that while the techs were able to reproduce the issue multiple times they were unable to find anything wrong with the vehicle's suspension. In the end they decided the cause of the knock and tactile bump were a result of body flex.

Has anyone had this particular issue with their sonic. Is it possible that this knocking issue has something to do with the anti-sway bar end links that I know have had issues with premature failure? Should I take it to another dealership and have it checked out?

Either way, I made sure the techs notated that they were able to replicate the issue in the notes (they had coded "Issue not able to replicated" despite telling me they had replicated it).

Thanks in advance!

Edit: Searched for knocking didn't come up with anything, guess I should have browsed down and I would have seen this thread prior to posting...

 

[RMinNJ]

I have very few miles on my car but back out of my driveway up hill each day turning.
I notice only a slight creak or noise . It does it once only.

Your sound sounds like maybe the subframe? I can't imagine the body of the car flexing in anyway.

 

[Gsrdude]

Sounds like another case of shot factory endlinks.

 

[SonicBoy24]

Endlinks/sway bar bushings.

That is the same issue I had with less than 4,000 miles.
When backing into the garage, turning right and in reverse, I would get a clunk/knock from the front suspension.
Took it to the dealer and they replaced both front sway bar bushings.

 

[Chevrolet Customer Care]

My 2013 Sonic LT has 10K miles on it. Over the last 1k or so it has developed a singular "knock" when the vehicle is in reverse going up an incline while turning either to the left or right. The knock sounds as though it comes from the front suspension and is accompanied by a mild tactile "bump" in the cabin. I took the vehicle to a dealership today to get it checked out and was told that while the techs were able to reproduce the issue multiple times they were unable to find anything wrong with the vehicle's suspension. In the end they decided the cause of the knock and tactile bump were a result of body flex.

Has anyone had this particular issue with their sonic. Is it possible that this knocking issue has something to do with the anti-sway bar end links that I know have had issues with premature failure? Should I take it to another dealership and have it checked out?

Either way, I made sure the techs notated that they were able to replicate the issue in the notes (they had coded "Issue not able to replicated" despite telling me they had replicated it).

Thanks in advance!

Edit: Searched for knocking didn't come up with anything, guess I should have browsed down and I would have seen this thread prior to posting...

Hey tubnotub1,

I apologize that you are experiencing these concerns with your Sonic. If you would like any assistance into another dealership or have any questions, please feel free to let me know in a PM. Provide your VIN, contact info and a preferred dealership, and I would be happy to look into this for you.

Patsy G
Chevrolet Customer Care

 

[ATplace2be]

I'm having the same issue, do we have a confirmed resolution or suggestion from Chevrolet?