has anybody had this same problem with their xf, my vehicle has just about half a gas tank and all the sudden gas light starts flashing and never stops until i turn the vehicle off. its not like when your running on the reserve where the gas light just turns on but never flashes. This is the second time it has happened, i took it to the dealer and they couldnt find a code on it, so they cant fix it if the car isnt complaining. Car runs fine, i tried looking for it on the owners manual and couldnt find anything on a flashing gas light.

 

Could it be gas cap is loose?