See also:

Setting the side air vents
To open/close: turn thumbwheel 3 up or down. Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut ...

Cabin Quality
If the cockpit in a Cadillac Escalade or Infiniti QX56 feels like a roomy lounge, the GL550's cabin is eminently more carlike. Don't expect massive armrests and a tall dashboard — rather, the wrap ...

EBD (electronic brake forcedistribution)
Observe the "Important safety notes" section. EBD monitors and controls the brake pressure on the rear wheels to improve driving stability while braking. WARNING   If EBD ...