See also:

Checking the oil level using the onboard computer
On vehicles with a 12-cylinder engine, the oil level can be checked using the on-board computer. On all other models, the dipstick must be used to check the engine oil level. Park the vehicle ...

Cruise control lever
1. To switch on or to increase the speed 2. To switch on or to reduce the speed 3. To deactivate cruise control 4. To switch on with the current speed or with the last stored speed Wh ...

Seating & Cargo
The GL550's front seats have a litany of power adjustments, including adjustable stiffness for the side bolsters. Even with the bolsters and lumbar support dialed all the way back, the seats are t ...