Mercedes-Benz GL-Class: Mechanical key
General notes
If the vehicle can no longer be unlocked with the SmartKey, use the mechanical key.
If you use the mechanical key to unlock and open the driver's door, the anti-theft alarm system will be triggered.
There are several ways to turn off the alarm:
► To turn the alarm off with the
SmartKey: press the 
button
on the SmartKey.
or
► Insert the SmartKey into the ignition
lock.
or
► To deactivate the alarm with KEYLESSGO:
press the Start/Stop button in the
ignition lock. The SmartKey must be in the
vehicle.
or
► Lock or unlock the vehicle using
KEYLESSGO.
The SmartKey must be outside the vehicle.
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.
Restoring the factory settings
► Press the
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. ...
SmartKey battery
Important safety notes
It is advisable to have batteries replaced at a
qualified specialist workshop, e.g. at an
authorized Mercedes-Benz Center.
WARNING
Batteries contain toxic and c ...
See also:
Intelligent Brake Assist (IBA) OFF switch (if so equipped)
The vehicle should be driven with the
Intelligent Brake Assist (IBA) system on
for most driving conditions.
The Intelligent Brake Assist (IBA) system
will sound a warning chime to alert the ...
Theft-Deterrent Feature
TheftLock® is designed to discourage theft of the vehicle's radio by learning
a portion of the Vehicle Identification Number (VIN).
The radio does not operate if it is stolen or moved to a dif ...
Engine Drive Belt Routing
If the vehicle is a hybrid, see the hybrid supplement for more information. ...
