Mercedes-Benz GLC, Operator'S Manual

Page: 248 / 390

Display messages
Possible causes/consequences and M Solutions
Active Brake Assist
Functions Limited
See Operator's Man‐
ual
Active Brake Assist is unavailable due to a malfunction. Adaptive
Brake Assist may also have failed.
X
Visit a qualified specialist workshop immediately.
PRE-SAFE Inopera‐
tive See Operator's
Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. air bags, remain available.
X
Visit a qualified specialist workshop immediately.
Active Brake Assist
Functions Currently
Limited See Opera‐
tor's Manual
Active Brake Assist with cross-traffic function is temporarily inopera-
tive.
Possible causes are:
R
function is impaired due to heavy rain or snow
R
the radar sensor system is temporarily inoperative, e.g. due to elec-
tromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation
R
the system is outside the operating temperature range
R
the on-board voltage is too low
R
Mercedes-AMG vehicles: ESP
®
is deactivated.
When the causes stated above no longer apply, the display message
disappears.
Active Brake Assist with cross-traffic function is operational again.
If the display message does not disappear:
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X
Secure the vehicle against rolling away (
Y
page 158).
X
Restart the engine.
X
Mercedes-AMG vehicles: switch ESP
®
on again (
Y
page 71).
Active Brake Assist
Functions Limited
See Operator's Man‐
ual
Active Brake Assist with cross-traffic function is unavailable due to a
malfunction.
X
Visit a qualified specialist workshop immediately.
246
Display messages
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