I have this noise on my 2019 Sierra, as well. I thought it was just me being too damn heavy! I get it when going over big bumps, too. Curious to see if there is any fix to this.
I get this from time to time. I will start the truck and it will be on and then turn off a few seconds later. I have used the settings to make sure the volume is at zero every time that I start the truck. The volume being on probably happens once a week or so. All the other times it is at zero. I just looked at my build sheet and I have an "IOT" radio.
There is a setting in your menu on the infotainment system. It is on page 95 of the Infotainment System User Manual, for your reference. It is under Settings and "Maximum Startup Volume." I was annoyed by this as well. I adjusted mine down to zero.
Just got back from the dealer. That took almost 2 hours and I even told them where the rattle was coming from. They were able to replicate the rattle, so that was a win. Then they took 2 headrests from a truck on the showroom floor and put those in mine. Apparently, the rattle disappeared. They ordered me 2 new headrests. So, now I wait. Just thought that I would followup in case it helps anyone else. Brian
geddylee2112 joined the community
I am new to the forum. I picked up a 2019 GMC Sierra SLT a couple weeks ago and had this rattle almost immediately. I tried spreading the posts apart but it didn't seem to work. If I take them completely out, the rattle stops. I have an appointment at the dealer over lunch today. I can't wait to hear what they have to say.
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