2020 CHEVROLET SILVERADO 3500 Electrical System Problems

The blower motor for the HVAC system caught fire.

I purchased a certified pre-owned 2020 Chevy Silverado 3500HD (6.6 Gas) November 2021. Within the next few weeks, I noticed brake squeaking that kept getting worse and the truck braking system would not stop like the 2500 I had traded in when I purchased the 3500HD. I had to adjust the trailer brake gain control up to as high as 9 or 9.5, should not have to adjust that high. I had trouble stopping at intersections and quick /emergency braking situations while pulling our trailer. This tells me the truck braking system is not working properly. Prior to leaving on a trip, I was having squeaking noise from the brakes that got louder and louder and more frequent. The dealer (Champion Chevrolet) checked the truck and brakes and told me it had the wrong brake pads and had replaced them. The first time I pulled off the interstate on my...

GM recall N2123544170 DPF regeneration temperature /DEF heater for cold weather operation to keep def from freezing and also for thawing frozen def...dealer to replace def tank and internal heating element...dealer was unable to give a time line for replacement parts needed to fix truck.(parts are back ordered)So truck ECM=electonic control module.throws trouble code to reduce engine power that starts taking away engine power at 65 mph...then 55 mph... then 45... all the way down to 5 mph. This can happen at any time or anywhere that can result in possible accidents... ! GM needs to make this a priority as thousand of vehicles are affected!