See also:

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 ...

Suspension tuning
General notes The electronically controlled damping system works continuously. This improves driving safety and ride comfort. The damping is tuned individually to each wheel and depends on: & ...

Switching on/off
The three red indicator lamps in the button indicate the heating level you have selected. If the battery voltage is too low, the seat heating may switch off. The system automatically switches ...