See also:

Cruise control lever
1 To activate or increase speed 2 To activate or reduce speed 3 To deactivate DISTRONIC PLUS 4 To activate at the current speed/last stored speed 5 To set the specified minimum distance ...

Downhill gradients
On long and steep gradients, you must reduce the load on the brakes by shifting early to a lower gear. This allows you to take advantage of the engine braking effect and helps avoid overhea ...

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 ...