My Telluride now has had the battery replaced and is, for the third time, sitting at the dealership hoping to resolve the problem. I asked that they do a "Parasitic Draw Test" recommended by my son who is a mechanic. Says all computers shut down eventually when car is off. This will show any that do not. We will see!
Also, the error message I get when I try to start when it's dead is "Doesn't Recognize Key"??? Even changed key battery!