See also:

Safety & Reliability
As of this writing, the Insurance Institute for Highway Safety had not yet crash-tested the GL-Class. The nine standard airbags include three-row side curtain airbags, a driver's knee airbag and s ...

Displaying service messages
  Switch on the ignition.   Press or on the steering wheel to select the Serv. menu.   Press or to select the ASSYST PLUS submenu and press to confirm. The service due d ...

Seating & Cargo
The GL550's front seats have a litany of power adjustments, including adjustable stiffness for the side bolsters. Even with the bolsters and lumbar support dialed all the way back, the seats are t ...