Buzzing Behind HVAC Controls

[2024Denali]

I have the 3.0L Duramax diesel, and on random cold starts there is a buzzing coming from behind the dash. Haven’t been able to find where, sounds like two plastic pieces vibrating against each other. Anyone have happen to them? Tough since it doesn’t do it consistently.

 

Attached a video of the sound.

 

 

Edited November 8, 2023 by Ultimate 2022

[GMCustomerService]

On 11/7/2023 at 9:03 PM, Ultimate 2022 said:

I have the 3.0L Duramax diesel, and on random cold starts there is a buzzing coming from behind the dash. Haven’t been able to find where, sounds like two plastic pieces vibrating against each other. Anyone have happen to them? Tough since it doesn’t do it consistently.

 

Attached a video of the sound.

 

This is certainly not what we like to hear, Ultimate 2022.  Please know, customer satisfaction is extremely important to us. Our team would be more than happy to take a closer look into the concerns with your 2022 GMC Sierra having a buzzing sound behind the dash. To do so, please send an email to [email protected] with ATTN: Ultimate 2022/GM Trucks in the subject line.

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