1. From the discussion it appears that others have had issues within a year or two.
2. Parts cost was about $700 for two sensors then labor to install
3. It took the dealership 3 tries to determine what was wrong, and that the sensors were the cause of the various low voltage warnings
4. I was very disappointed thinking that a cheaply made sensor could fail and disable the vehicle. Seems like this could have been done better. Either better components or the electrical system protected from this. I'm thankful that things didn't turn out worse when this happened at 10 below.