The left passenger seat heater does not work. When you push the button, the light comes on for a few seconds before turning back off. There is no audible click like there is with the right passenger seat heater whenever turned on. We took it to the dealer and they quoted $500+ just for diagnostics, not to actually fix the problem. We decided to just not fix it, as it doesn't get terribly cold here anyway. All of the rest of the seat heaters work fine.