At first the product was flawless. The first 2 years I had no troubles warming up my truck in the winter. It came with 2 key fabs and I predominately used 1 of them. Then one day it quit working, so I switched to the other one. It didn't work either. Replaced the batteries with no results. Best Buy said that the key fab went bad, which meant both were now useless! So i bought a new one and they programmed it for free! Then less than a year later the starter system went bad again. This time it was not the fab, it was a wire they installed originally which needed to be updated. Then when they tried to reprogram it, that fab wouldn't work! So I bought a new fab and everything has been working since.
So I am on my 3rd fab, but Best Buy has never charged me for the labor to repair anything with the Viper System.