Trailblazer Forum banner
1 - 9 of 9 Posts

·
Registered
Joined
·
2 Posts
Discussion Starter · #1 ·
Just took delivery of a 22 RS 2 weeks ago. Love the car with exception ONE thing. When we hit highway speeds of 65+ we hear a whistling noise in the front of the car. At first I thought windshield. It’s more to the passenger side. Took it to the service department almost immediately. Dealership says they don’t know what it is and can’t figure it. Said it might be poor design of mirror placement. I don’t believe this but… If that’s the case I’m super upset.
Anyone else have this issue and have any suggestions?
 

·
Registered
2021 Trailblazer Activ Zeus Bronze Metallic (+2022 Silverado 1500 RST Z71)
Joined
·
112 Posts
Same experience with a 2021 Activ. It doesn't happen all the time, though, and I generally just cover the sound with the radio. I haven't been able to determine exactly where it is coming from. I would love to have the dealer fix it, but I've never been able to get dealers to find/fix noises with other vehicles in the past, so I haven't made an effort.

I haven't had any car wash leaks or anything, though.
 

·
Super Moderator
2021 TB Zues Bronze Activ
Joined
·
806 Posts
Same here with my 2021 Active. Seems to come from the pass side dash/windshield, not sure. I have noted at times it goes away if the hvac system is running. Not sure what is going on but seems we all have the same issue. I think it it the hvac system personally. Air is coming it, when the system is manipulated the sound goes away.
 

·
Super Moderator
2021 TB Zues Bronze Activ
Joined
·
806 Posts
There is a lot of plastic in the TB for sure. We have one right above drivers door like right next to my head. At times its there or not. Depends on the terrain, bumps. I just learned to deal with it aka turn the radio on.
 

·
Registered
2021Trailblazer RS AWD Scarlet Red Metallic
Joined
·
1,084 Posts
Same here with my 2021 Active. Seems to come from the pass side dash/windshield, not sure. I have noted at times it goes away if the hvac system is running. Not sure what is going on but seems we all have the same issue. I think it it the hvac system personally. Air is coming it, when the system is manipulated the sound goes away.
Yes, it has something to do with the HVAC setting (recirculation mode). I suspect the internal door that regulates outside air is what's causing the whistling. Next time you hear that noise try pushing the recirculation button and see how it changes the noise.
 

·
Registered
Joined
·
2 Posts
Discussion Starter · #7 ·
Yes, it has something to do with the HVAC setting (recirculation mode). I suspect the internal door that regulates outside air is what's causing the whistling. Next time you hear that noise try pushing the recirculation button and see how it changes the noise.
Interesting! I’ll have to check that out.
Dealership said they’ve got a few new ones coming and in and are going to see if they all do it too and go from there. It’s rather disappointing.
 

·
Registered
Joined
·
118 Posts
There is a lot of plastic in the TB for sure. We have one right above drivers door like right next to my head. At times its there or not. Depends on the terrain, bumps. I just learned to deal with it aka turn the radio on.
Okay I think I have the same one. I have vent visors so I put in extra double sided tape because I thought it might be rattling on the parts of the visors that aren't taped normally, but it didn't solve the issue.
 

·
Registered
Joined
·
198 Posts
Okay I think I have the same one. I have vent visors so I put in extra double sided tape because I thought it might be rattling on the parts of the visors that aren't taped normally, but it didn't solve the issue.
i started with the cheap overseas visors and the passenger side had a terrible creaking sound when the window was down. but i replaced with the ones from GM and that problem is gone.
 
1 - 9 of 9 Posts
Top