Mercedes-Benz GLS Operator's Manual page 316

Features
314
Problems with the 115 V power socket
Problem
The warning lamp on the
115 V power socket is
not lit.
mbrace
General notes
The mbrace system is only available in the USA.
A license agreement must be in place in order to
activate the mbrace service. Make sure that
your system is activated and operational. To
register, press the ï Info call button. If any of
the steps mentioned are not carried out, the
system may not be activated.
If you have questions about the activation, con-
tact one of the following telephone hotlines:
Mercedes-Benz Customer Assistance Center at
1-800 FOR-MERCEDES (1-800-367-6372) or
1-866-990-9007
Shortly after successfully registering with the
mbrace service, a user ID and password will be
sent to you by mail. You can use this password
to log onto the mbrace area under "Owners
Online" at http://www.mbusa.com.
Possible causes/consequences and M Solutions
The on-board voltage is too low because the battery is too weak.
Start the engine.
X
or
Charge the battery (
X
If the indicator lamp still does not light up:
Visit a qualified specialist workshop.
X
The temperature of the DC/AC converter is temporarily too high.
Remove the electronic device connector from the 115 V socket.
X
Let the DC/AC converter cool down.
X
If the indicator lamp still does not light up after cooling down the
converter:
Visit a qualified specialist workshop.
X
You have connected an electronic device that has a constant nominal
power of less than 150 watts, but has a very high switch-on current.
This device will not work. If you connect such a device, the 115 V
power socket will not supply it with power.
Connect a suitable electronic device.
X
page 346).
Y
The system is available if:
it has been activated and is operational
R
the corresponding mobile phone network is
R
available for transmitting data to the Cus-
tomer Center
a service subscription is available
R
Determining the location of the vehicle on a map
is only possible if:
GPS reception is available
R
the vehicle position can be forwarded to the
R
Customer Assistance Center
The mbrace system
To adjust the volume during a call, proceed as
follows:
Press the W or X button on the multi-
X
function steering wheel.
or
Use the multimedia system volume control.
X