Key not detected

Question by Charlie3 posted 1 month ago in 2012-____ (W166)

My Mercedes 2012 ML350 4matic is having a key issue. Key Fob unlocks, panic button works as well as trunk. Car starts and a “key not detected” warning is displayed. Car will not shift out of park. Does not do this every time. Both key fobs have the problem and batteries have been replaced twice in each key fob. You can turn off the car, open and close drivers door and it will usually clear the problem. Any help will be greatly appreciated.