See also:

Vehicle data, GL 550
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Removing the mechanical key
•► Push release catch 1 in the direction of the arrow and at the same time, remove mechanical key 2 from the SmartKey. ...

Emergency braking
The vehicle can also be braked during an emergency using the electric parking brake. While driving, push handle 1 of the electric parking brake. The vehicle is braked as long as you keep the ...