Making adjustments in 5 mph (Canada:

10 km/h) increments

beyond the pressure point, up 1 for a Briefly press the cruise control lever beyond the pressure point, up 1 for a higher speed or down 2 for a lower speed.

The last speed stored is increased or reduced.

    See also:

    Fuel grade
    Only refuel with ULTRA-LOW SULFUR DIESEL FUEL (ULSD, 15 ppm SULFUR MAXIMUM). Using other diesel fuels could result in increased wear and damage to the engine and/or exhaust system. Never r ...

    General notes
    If you cannot lock or unlock the vehicle with the SmartKey, either the battery in the SmartKey is discharged, the SmartKey is faulty or the starter battery is discharged. •► Check the bat ...

    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 ...