Mercedes-Benz S-Class 2012 - Manual (Page 396)

Display messages Possible causes/consequences and M Solutions
The red F (USA only)/ ! (Canada only) indicator lamp lights
up.
The power supply for the electric parking brake was interrupted.
X Pull the electric parking brake handle.
or
X Pull away carefully.
or
X Pull the electric parking brake handle until the display message
disappears.
The red F (USA only)/ ! (Canada only) indicator lamp
flashes and the yellow F (USA only)/ ! (Canada only)
warning lamp lights up.
The electric parking brake is malfunctioning.
X Switch off the ignition and turn it back on.
X Engage or release the electric parking brake.
or
X Pull away carefully.
X Visit a qualified specialist workshop.
The yellow F (USA only)/ ! (Canada only) warning lamp
lights up. The red F (USA only)/ ! (Canada only) indicator
lamp flashes for approximately 10 seconds after the electric
parking brake has been applied or released. It then goes out or
remains lit.
The electric parking brake is malfunctioning, e.g. because of
overvoltage or undervoltage.
X Pull away carefully.
X Visit a qualified specialist workshop.
If there is overvoltage or undervoltage:
X Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X Switch the ignition off and on, and then engage or release the
electric parking brake.
If this does not release the electric parking brake:
X Do not drive on.
X Consult a qualified specialist workshop.
394
Display messages
On-board computer and displays