See also:

Checklist before driving off-road
► Engine oil level: check the engine oil and top it up if necessary. The vehicle can only guarantee a smooth supply of oil on steep stretches if there is a sufficient level of engine oil ...

Shifting to transmission position D
- When the vehicle is stationary, depress the brake pedal. - Push the DIRECT SELECT lever down past the first point of resistance. ...

Exterior & Styling
Particularly from the rear, the GL's appearance looks a bit like Mercedes' original M-Class — so much so that a passenger walked up to an older M thinking it was the GL. The GL550's 21-inch wheels ...