Red light with seat with a red dot came on while i was driving. i stopped the car and looked up what the symbol meant. when it didn't involve oil or water, i drove it to dealer. they performed 30,000 mile service and when i drove it home it stopped.
Left driver side seat belt is connected by a cable to the car body. we discovered that the cable had failed and only a couple of strands were holding the seat belt to the car. my wife discovered it by accident when getting out of the car. photos attached. mercedes charged me $450 to replace seat belts that were defective.
The 2013 smart fortwo pure edition (base model) seat belt restraint system malfunctions. when the driver leans forward to look out either side window to check for oncoming traffic the seat belt becomes loose and will not retract into the guide unless it is hand fed. this also remains true for the passenger side. it appears it is being caught up in the guide attached to the side of the seats. *tr