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, oversized grille and rubber-studded running boards give it a look similar to that of Mercedes' AMG performance cars — perhaps that was the intention, given there is no AMG GL-Class — and should secure the car a front-row spot at most valet stands. Lesser models can be dressed to match, albeit with a smaller grille.

Less-expensive GLs have 18- or 19-inch wheels. An optional offroad package raises the air suspension to yield 12 inches of ground clearance, 2 inches higher than a Hummer H2's. The package also includes a two-speed transfer case and locking center and rear differentials.

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    Restarting the tire pressure monitor
    WARNING   It is the driver's responsibility to set the tire pressure to the recommended cold tire pressure. Underinflated tires affect the ability to steer or brake the vehicle. You migh ...

    General notes
    If the vehicle can no longer be locked or unlocked with the SmartKey, use the mechanical key. If you use the mechanical key to unlock and open the driver's door or the trunk lid, the anti-the ...

    Multifunction display
    Values and settings as well as display messages are shown in the multifunction display. 1. Description field 2. Menu bar 3. Drive program 4. Transmission position 5. Outside tem ...