My Toyota is a Tacoma, not a Tundra, but I think the same 'features' that give me fits would be shared, the dealership mechanics would be equally limited if you had a problem, and you'd be equally stuck if you're relying on them because it's a warranty issue.
If I had it to do again, I'd go back to Nissan for a small truck or Ford for a fullsized one.
Toyota owners are very loyal, so when **this** Toyota owner suggests you might oughta buy something else ... you'd be wise to pay attention.