2010 Mercedes GL-Class Owner's Manual - Page 314

312 Vehicle status messages in the multifunction display Display messages Possible causes/consequences and M Solutions The left or right low-beam lamp is malfunctioning. X Halogen headlamp: Replace the bulb as soon as possible (Y page 328). X Bi-Xenon headlamp: Contact an authorized MercedesBenz Center as soon as possible. The rear fog lamp is malfunctioning. X Replace the bulb as soon as possible (Y page 328). b Low Beam Left or Low Beam Right Foglamp Rear Left b Practical hints b You have removed the SmartKey from the starter switch, Switch Off Lights opened the driver's door and left the headlamps on or removed the SmartKey with KEYLESS-GO from the vehicle and left the headlamps on. X Turn the exterior lamp switch to $ or à (Y page 97). or X With the rear fog lamp switched on: Push in the exterior lamp switch to its stop. Tail Lamp Left or Tail Lamp Right The left or right tail lamp is malfunctioning. A substitute bulb is being used. X Replace the bulb as soon as possible (Y page 328). b b b The left or right trailer brake lamp is malfunctioning. Trailer Brake Lamp X Replace the bulb as soon as possible. Trailer Tail Lamp Left or Trailer Tail Lamp Right Trailer Turn Signal Left or Trailer Turn Signal Right The left or right trailer tail lamp is malfunctioning. X Replace the bulb as soon as possible. b The left or right trailer turn signal lamp is malfunctioning. X Replace the bulb as soon as possible.