pittsburgh123721

5.3L 6 Speed Custom TB. 10k Miles When accelerating in what seems to be first gear at around 8-11 MPH and again around 18-21 MPH this vibration sound happens. I have taken all the things out of Glovebox and door panels. It happened awhile ago and then stopped and then came back today. I dont notice anything at speed or driving. Just during initial acceleration. No other modifications. Stock 20" rims and Stock tires. Sorry about the total silence and black video but just normal acceleration and hear this vibration and its freaking me out. Video.mov

Unfortunately Climate and air quality is not in any of my drop down menus. I searched every section and nothing.. I did find this old posting about it. So maybe this is what happens. https://www.gm-trucks.com/forums/topic/232469-19-trailboss-remote-start-makes-the-ac-run-on-full-blast/

Just searched through the Radio Screen but nothing about temperature settings or anything. This is it. I thought maybe it would just default to the last setting it was at when you shut the truck off. I cant find anything for a truck without Climate control, heated seats or wheels....

I searched through the options and it didn't give me any options under settings about remote start. That was the first place that i looked under the settings on the touch screen.

I have only had my Custom TB since May. I know when i remote start it right now it blows cold air at full blast. What happens when it its below freezing outside? Do i have to do anything to get it to heat up the car vs blowing cold air? Just keep the knob for temperature on the hot side or does it automatically know somehow? Sorry for the dumb question...

I just did the check on Carvana. I have 2020 Custom TB 5.3. Has 9k miles on it The offer was 38,500. I am shocked on how low the offer for the LT TB is...