One problem related to warnings has been reported for the 2013 BMW X5. The most recently reported issues are listed below.
After the passenger would vacate the car the passenger seat belt alarm would come on and stay on till I would take action by hitting the seat with my palm. I tried three times in having the dealership to repair the seat pad sensor while it was under warranty, but they said they could not duplicate it. After the warrant expired I returned it the dealership and then they said it was a defective seat pad sensor. (ugh).