See also:

Setting the center air vents
1 Fixed center air vent 2 Center air vent, right 3 Center vent thumbwheel, right 4 Center vent thumbwheel, left 5 Center air vent, left To open/close: turn thumbwheels 3 and 4 up or ...

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 ...

Note
You can adjust almost all system settings individually for each screen without affecting the other screen. You make these settings using the remote control. ...