Mercedes-Benz S-Class 2011 Operator's Manual page 392

Display messages
390
Display messages Possible causes/consequences and M Solutions
The red F (USA only)/ ! (Canada only) indicator lamp
flashes and a warning tone sounds.
You are performing an emergency stop using the electric parking
Y
brake ( page 317).
X
After the emergency stop: release the electric parking brake
lever.
The red F (USA only)/ ! (Canada only) indicator lamp
flashes, the yellow F (USA only)/ ! (Canada only) warning
lamp illuminates and a warning tone sounds.
The electric parking brake is malfunctioning and the braking effect
is restricted.
While the vehicle is in motion:
X
Release the electric parking brake lever.
While the vehicle is stationary:
X
Switch off the ignition and turn it back on.
X
Release the electric parking brake manually.
If the display message continues to be displayed:
X
Shift the transmission to P.
X
Use the folding wheel chock (
kit to secure the vehicle against rolling away.
X
Consult a qualified specialist workshop.
Y page 464) from the vehicle tool