JCraven

Annoying issues that my dealer is stumped with currently. First, both my radio and dash seem to randomly go to different screens when I first get in and start the vehicle. I always leave the dash on the setting to see my fuel economy and the radio on one of the streaming services such as Spotify. Randomly, I get in and the dash will be on a different screen and the radio on USB drive music. Second issue...The streaming media such as Amazon or Spotify will just stop streaming as if there is no service. This happens in areas that it normally works and is always in areas with cell service such as the middle of town. The screen will go to the play symbol but no reaction when selected. If I select a different song or musician the song will play for typically 50 seconds and stop then I pick another song and the same occurrence. At times, the only way to get the music to work is to uninstall and reinstall the app. Any ideas?

Update on my issue... The problem turned out to be the high pressure fuel rail. Replaced and issue corrected. While there I pointed out that my heated seats didn't light up when selected and was curious if I was missing a component or what was happening. They found the control unit was bad for the heating controls. I had to wait several months for the replacement but that has been corrected as well. While performing that work I asked them to check the truck for leaks as I was seeing an oil spot in my driveway. They found a bad front seal in my transfer case. Not a huge deal as the part was easy for them to get but it apparently requires a special tool which they are having no luck in getting from GM. I've owned several vehicles over the years and had some minor issues but this GMC is pitiful given the price tag and it being brand new. Now at 15k miles and have not owned the truck for a period of time that there was no issue.

A little history first. I had some warning lights come on at about 800 miles for various items but I recall the collision system light and traction control being 2 of them (no I haven't wrecked the truck) and the display said Reduced Acceleration. The dealership flashed the ECM and said this would take care of the issue. The lights are out but just prior I had noticed this light shudder/jerk to the transmission when lightly accelerating or coasting at lower speeds. The shudder/jerk has not gone away since the ECM flash. This puts me in mind of a shift shock issue but it has me wondering if it could be a brake issue (grabbing) considering the lights from the ECM issue. The code triggered by the system was a P060C which aligns with the ECM flash so maybe these aren't related but curious if anyone else has heard of this issue. Added bonus...My A/C didn't seem very cold so I asked them to look at it during this time and they found a hole in the evaporator coil. My first GM product in over 30 years and all of this in the first 1200 miles so I'm not feeling like I made a smart purchase. Oh and I'll add to it that my local dealership can't provide me with a loaner vehicle and this is my only vehicle so now I get to miss a day of work.

I am noticing the same issue so please update if they found a resolution as my truck is scheduled for service in a couple of days. 2024 GMC Denali Ultimate with just over 1k miles. Mine puts me in mind of shift shock but I also had some engine lights come on around 800 miles for traction control and collision warning. I was told it was an issue with the ECM and a reflash took care of the issue. The lights are out but still having this studder. My only other thought was a brake grabbing?