About 1700 miles on my 2019-2500 gas and had a number of issues since my first report.
As mentioned before-
The AC system isn't blowing cool enough air to keep the truck cool in 95 degree temps until it has been driven about a half hour. That issue is put on hold by the seasonal change of temperatures.
Three times now it has popped out of reverse, causing the truck to roll forward. This is so dangerous. This is not user error as best as I can determine. There is no way to half-way lock the transmission. The knob is either in gear or not.
I have little to no faith in the collision prevention system. There is no evidence it is working and in fact the other day a warning light popped up saying it was turned off. Sure enough the Unconnect menu showed the system off. Turning it on didn't work because it would just turn itself off after a few seconds. Stopping the vehicle, turning it off and opening the door solved the light issue, but I very much doubt the system is working at all. The manual says there is no way to test it. I suppose that means "just have faith." My faith is lacking.
Twice now, the camera system has failed with "camera system unavailable" message on the screen. Nothing seems to fix it powered up, but turning off the vehicle and opening the door seems to reset it.
I don't know if this is normal, but my automatic wipers turn on in dry weather randomly at odd times. I've never owned automatic wipers, so I don't know what is normal.
Getting terrible mileage with the 6.4. Hand calculated mileage is steady at 11 mpg. I've seen 18 mpg on the computer with over 100 miles of highway driving, but it reverts back to a very low number rapidly. I drive about 20-25% highway and the computer calculated mileage during the 1700 miles of ownership is about 12 mpg. I've hand calculated the last three tanks of gas and they have all been right at 11 mpg. I've found the computer to be .6 mpg too optimistic. I'm not sure if this mileage is an issue or just normal. One thing I have noticed is this truck drinks a lot of gas when just idling. I can live with this, but I am a bit disappointed that the 8 speed isn't doing better.
To say the least, I am no longer impressed by this vehicle. I am already looking forward to the day when I can get rid of it and not lose half my 20K downpayment.
I was hoping the first trip to the dealer would be for an oil change and minor adjustments. I'm not sure I can wait that long.