2019 MERCEDES-BENZ GLC ESP

Display messagesPossible causes/consequences andPPSolutions
The yellow$warning lamp lights up and the redI(USA only)or$(Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
XShift the transmission to position].
XVisit a qualified specialist workshop.
'(USA only)
M(Canada only)
Check Brake FluidCheck Brake FluidLevelLevel
There is not enough brake fluid in the brake fluid reservoir.
In addition, the'(USA only) orM(Canada only) warning lamplights up in the instrument cluster and a warning tone sounds.
GWARNING
The braking effect may be impaired.
There is a risk of an accident.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions. Do not continue drivingunder any circumstances.
XSecure the vehicle against rolling away (Ypage 152).
XConsult a qualified specialist workshop.
XDo not add brake fluid. This does not correct the malfunction.
&
CheckCheckBrakeBrakePadPadWearWear
The brake pads/linings have reached their wear limit.
USA only: the red'brake system warning lamp is lit while theengine is running.
GWARNING
If the brake pads/linings have reached their wear limit, braking per-formance may be impaired.
There is a risk of an accident.
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
S
InoperativeInoperative
One or more main features of the mbrace system are malfunctioning.
XVisit a qualified specialist workshop.
Displaymessages233
On-b oard computer and displays
Z

Display messagesPossible causes/consequences andPPSolutions
ActiveActiveBrakeBrakeAssistAssistFunctionsFunctionsCurrentlyCurrentlyLimited See Opera‐Limited See Opera‐tor's Manualtor's Manual
Active Brake Assist is temporarily inoperative.
Possible causes are:
Rthe radar sensor system is temporarily inoperative, e.g. due to elec-tromagnetic radiation emitted by nearby TV or radio stations orother sources of electromagnetic radiation
Rthe system is outside the operating temperature range
Rthe on-board voltage is too low
When the causes stated above no longer apply, the display messagedisappears.
Active Brake Assist is operational again.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XRestart the engine.
ActiveActiveBrakeBrakeAssistAssistFunctions LimitedFunctions LimitedSee Operator's Man‐See Operator's Man‐ualual
Active Brake Assist is unavailable due to a malfunction. AdaptiveBrake Assist may also have failed.
XVisit a qualified specialist workshop immediately.
PRE-SAFE Inopera‐PRE-SAFE Inopera‐tivetiveSeeSeeOperator'sOperator'sManualManual
Important functions of PRE-SAFE®have failed. All other occupantsafety systems, e.g. air bags, remain available.
XVisit a qualified specialist workshop immediately.
ActiveActiveBrakeBrakeAssistAssistFunctionsFunctionsCurrentlyCurrentlyLimited See Opera‐Limited See Opera‐tor's Manualtor's Manual
Active Brake Assist with cross-traffic function is temporarily inopera-tive.
Possible causes are:
Rfunction is impaired due to heavy rain or snow
Rthe radar sensor system is temporarily inoperative, e.g. due to elec-tromagnetic radiation emitted by nearby TV or radio stations orother sources of electromagnetic radiation
Rthe system is outside the operating temperature range
Rthe on-board voltage is too low
RMercedes-AMG vehicles: ESP®is deactivated
When the causes stated above no longer apply, the display messagedisappears.
Active Brake Assist with cross-traffic function is operational again.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XRestart the engine.
XMercedes-AMG vehicles: switch ESP®on again (Ypage 70).
234Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
ActiveActiveBrakeBrakeAssistAssistFunctions LimitedFunctions LimitedSee Operator's Man‐See Operator's Man‐ualual
Active Brake Assist with cross-traffic function is unavailable due to amalfunction.
XVisit a qualified specialist workshop immediately.
RadarRadarSensorsSensorsDirtyDirtySee Operator's Man‐See Operator's Man‐ualual
The radar sensor system is malfunctioning.
Possible causes are:
Rdirt on sensors
Rheavy rain or snow
Rwhen driving on inter-urban roads without traffic or infrastructure,e.g. in desert-like areas
At least one driving system or driving safety system is malfunctioningor is temporarily unavailable:
RActive Brake Assist
RActive Lane Keeping Assist
RActive Blind Spot Assist
RActive Distance Assist DISTRONIC with Active Steering Assist
If the radar sensor system in front is dirty, Active Blind Spot Assist willnot perform a course-correcting brake application.
Once the cause of the problem is no longer present, the driving anddrive safety systems will be available again. The display message dis-appears.
If the display message does not disappear:
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XSwitch off the engine.
XClean all sensors (Ypage 309).
XRestart the engine.The display message disappears.
u
SRSSRSMalfunctionMalfunctionSer‐Ser‐vice Requiredvice Required
The restraint system is malfunctioning. Theuwarning lamp alsolights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggeredunintentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
Further information about the restraint system (Ypage 43).
Displaymessages235
On-b oard computer and displays
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Display messagesPossible causes/consequences andPPSolutions
u
Front Left Malfunc‐Front Left Malfunc‐tion Servicetion ServiceRequiredRequiredorFrontFrontRight MalfunctionRight MalfunctionService RequiredService Required
The restraint system is malfunctioning at the front on the left or right.Theuwarning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggeredunintentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
u
Rear Left Malfunc‐Rear Left Malfunc‐tion Servicetion ServiceRequiredRequiredorRearRearRight MalfunctionRight MalfunctionService RequiredService Required
The rear left-hand or right-hand restraint system is malfunctioning.Theuwarning lamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggeredunintentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
u
RearRearCenterCenterMalfunc‐Malfunc‐tion Servicetion ServiceRequiredRequired
The rear center restraint system is malfunctioning. Theuwarninglamp also lights up in the instrument cluster.
GWARNING
The air bags or Emergency Tensioning Devices may either be triggeredunintentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
u
Left Side CurtainLeft Side CurtainAirbag MalfunctionAirbag MalfunctionService RequiredService RequiredorRight Side CurtainRight Side CurtainAirbag MalfunctionAirbag MalfunctionService RequiredService Required
The left-hand or right-hand window curtain air bag is malfunctioning.
Theuwarning lamp also lights up in the instrument cluster.
GWARNING
The left or right window curtain air bag may either be triggered unin-tentionally or, in the event of an accident, may not be triggered.
There is an increased risk of injury.
XVisit a qualified specialist workshop immediately.
236Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
FrontFrontPassengerPassengerAir‐Air‐bag Disabled Seebag Disabled SeeOperator's ManualOperator's Manual
The front-passenger front air bag is deactivated during the journey,even though:
Ran adult
or
Ra person of the corresponding stature is on the front-passenger seat
If additional forces are applied to the seat, the system may interpretthe occupant's weight as lower than it actually is.
GWARNING
The front-passenger front air bag does not deploy during an accident.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XSwitch the ignition off.
XHave the occupant on the front-passenger seat get out of the vehi-cle.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF andPASSENGER AIR BAG ON indicator lamps must light up simulta-neously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then light upand remain lit after the self-diagnosis. If the indicator lamp is on,OCS (Occupant Classification System) has disabled the front-passenger front air bag (Ypage 51)
Rthe display messagesFront Passenger Airbag EnabledFront Passenger Airbag EnabledSee Operator's ManualSee Operator's ManualorFront Passenger Airbag Dis‐Front Passenger Airbag Dis‐abled See Operator's Manualabled See Operator's Manualmust not appear in the multi-function display
XWait for a period of at least 60 seconds until the necessary systemchecks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can be occu-pied again. Whether the PASSENGER AIR BAG OFF indicator lampremains lit or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating correctly.
XVisit a qualified specialist workshop immediately.
Further information about the Occupant Classification System(Ypage 51).
Displaymessages237
On-b oard computer and displays
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Display messagesPossible causes/consequences andPPSolutions
FrontFrontPassengerPassengerAir‐Air‐bag Enabled Seebag Enabled SeeOperator's ManualOperator's Manual
The front-passenger front air bag is activated during the journey, eventhough:
Ra child, a small adult or an object weighing less than the system'sweight threshold is located on the front-passenger seat
or
Rthe front-passenger seat is unoccupied
The system may detect objects or forces applying additional weight onthe seat.
GWARNING
The front-passenger front air bag may deploy unintentionally.
There is an increased risk of injury.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XSwitch the ignition off.
XOpen the front-passenger door.
XRemove the child and the child restraint system from the front-passenger seat.
XMake sure that there are no objects on the seat adding to theweight.The system might otherwise detect the additional weight and inter-pret the seat occupant's weight as greater than it actually is.
XKeep the seat unoccupied, close the front-passenger door andswitch on the ignition.
XObserve the PASSENGER AIR BAG indicator lamps in the centerconsole and the multifunction display and check the following:
Seat unoccupied and ignition switched on:
Ra self-diagnosis is carried out. The PASSENGER AIR BAG OFF andPASSENGER AIR BAG ON indicator lamps must light up simulta-neously for approximately six seconds.
Rthe PASSENGER AIR BAG OFF indicator lamp must then light upand remain lit after the self-diagnosis. If the indicator lamp is on,OCS has disabled the front-passenger front air bag (Ypage 51)
Rthe display messagesFront Passenger Airbag EnabledFront Passenger Airbag EnabledSee Operator's ManualSee Operator's ManualorFront Passenger Airbag Dis‐Front Passenger Airbag Dis‐abled See Operator's Manualabled See Operator's Manualmust not appear in the multi-function display
XWait for a period of at least 60 seconds until the necessary systemchecks have been completed.
XMake sure that the display messages do not appear in the multi-function display.
If these conditions are fulfilled, the front-passenger seat can be occu-pied again. Whether the PASSENGER AIR BAG OFF indicator lampremains lit or goes out depends on how OCS classifies the occupant.
If the conditions are not fulfilled, the system is not operating correctly.
XVisit a qualified specialist workshop immediately.
238Displaymessages
On-b oard computer and displays

Display messagesPossible causes/consequences andPPSolutions
Further information about the Occupant Classification System(Ypage 51).
Lights
Display messagesPossible causes/consequences andPPSolutions
I
CheckCheckLeftLeftLowLowBeamBeam(Example)
The corresponding bulb is faulty.
XVisit a qualified specialist workshop.
or
XCheck whether you are permitted to replace the bulb yourself(Ypage 114).
iLED light sources: the display message for the correspondinglamp only appears when all the LEDs in the lamp have failed.
I
Active HeadlampsActive HeadlampsInoperativeInoperative
The active light function is malfunctioning.
XVisit a qualified specialist workshop.
I
Malfunction SeeMalfunction SeeOperator’s ManualOperator’s Manual
The exterior lighting is malfunctioning.
XVisit a qualified specialist workshop.
Vehicles with trailer tow hitch: a fuse may have blown.
XPull over and stop the vehicle safely as soon as possible, payingattention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 152).
XCheck the fuses (Ypage 327).
XIf necessary, replace the blown fuse. Observe the warning notes.
If the display message remains on show:
XVisit a qualified specialist workshop.
I
Automatic HeadlampAutomatic HeadlampMode InoperativeMode Inoperative
The light sensor is malfunctioning.
XVisit a qualified specialist workshop.
I
Switch Off LightsSwitch Off Lights
You leave the vehicle and the lights are switched on. A warning tonealso sounds.
XTurn the light switch to theXposition.
I
Switch On HeadlampsSwitch On Headlamps
You are driving with low-beam headlamps switched off.
XTurn the light switch to theXorXposition.
Displaymessages239
On-b oard computer and displays
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Display messagesPossible causes/consequences andPPSolutions
Adaptive HighbeamAdaptive HighbeamAssist CurrentlyAssist CurrentlyUnavailable SeeUnavailable SeeOperator's ManualOperator's Manual
Adaptive Highbeam Assist is deactivated and temporarily inoperative.Possible causes are:
Rthe windshield in the camera's field of vision is dirty
Rvisibility is impaired due to heavy rain, snow or fog
XClean the windshield.
If the system detects that the camera is fully operational again, theAdaptiveAdaptiveHighbeamHighbeamAssistAssistNowNowAvailableAvailablemessage is displayed.
Adaptive Highbeam Assist is operational again.
Adaptive HighbeamAdaptive HighbeamAssist InoperativeAssist InoperativeAdaptive Highbeam Assist is malfunctioning.
XVisit a qualified specialist workshop.
Engine
Display messagesPossible causes/consequences andPPSolutions