2017 MERCEDES-BENZ GLA-Class warning

Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavail‐
able See Opera‐
tor's Manual
ABS (Anti-lock Braking System), BAS (Brake Assist), ESP®(Elec-
tronic Stability Program), the HOLD function and hill start assist
are temporarily unavailable.
COLLISION PREVENTION ASSIST PLUS may also have failed.
In addition, the !,÷andå warning lamps may light up
in the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
RSelf-diagnosis is not yet complete.
RThe on-board voltage may be insufficient.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely affec-
ted. The braking distance in an emergency braking situation can
increase.
If ESP
®is not operational, ESP®is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
XCarefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the multifunction display still shows the display message:
XDrive on carefully.
XVisit a qualified specialist workshop immediately.
!÷
Inoperative See
Operator's Manual
ABS, BAS, ESP®, the HOLD function and hill start assist are not
available due to a malfunction.
COLLISION PREVENTION ASSIST PLUS may also have failed.
The !, ÷,åand$ (USA only) or J(Canada only)
warning lamps in the instrument cluster may also light up.
ATTENTION ASSIST is deactivated.
GWARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
236Display messages
On-board computer and displays

Engine
Display messagesPossible causes/consequences andMSolutions
+
Check Coolant
Level See Opera‐
tor's Manual
The coolant level is too low.
!Avoid making long journeys with too little coolant in the engine
cooling system. The engine will otherwise be damaged.
XAdd coolant, observing the warning notes before doing so
(
Ypage 311).
If you have to add coolant frequently:
XContact a qualified specialist workshop and have the engine
cooling system checked.
?The fan motor is faulty.
XAt coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop.
XAvoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
?
Coolant Too Hot
Stop Vehicle Turn
Engine Off
The coolant is too hot.
A warning tone also sounds.
GWARNING
Do not drive when your engine is overheated. This can cause some
fluids which may have leaked into the engine compartment to
catch fire.
Steam from the overheated engine can also cause serious burns
which can occur just by opening the hood.
There is a risk of injury.
XPull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 171).
XWait until the engine has cooled down.
XMake sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
XDo not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †). Other-
wise, the engine could be damaged.
XPay attention to the coolant temperature display.
If the temperature increases again:
XVisit a qualified specialist workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120†) .
Displa y messages251
On-board computer and displays
Z

Tires
Display messagesPossible causes/consequences andMSolutions
Check Tire Pres‐
sure Soon
Canada only:
The tire pressure loss warning system has detected a significant
loss in pressure.
A warning tone also sounds.
Possible causes:
Ryou have changed the positions of the wheels and tires or instal-
led new wheels and tires.
Rthe tire pressure in one or more tires has dropped
GWARNING
Tire pressures that are too low pose the following hazards:
Rthey may burst, especially as the load and vehicle speed
increase.
Rthey may wear excessively and/or unevenly, which may greatly
impair tire traction.
Rthe driving characteristics, as well as steering and braking, may
be greatly impaired.
There is a risk of an accident.
XStop the vehicle without making any sudden steering or braking
maneuvers. Pay attention to the traffic conditions as you do so.
XSecure the vehicle against rolling away (Ypage 171).
XCheck the tires and, if necessary, follow the instructions for a
flat tire (
Ypage 322).
XCheck the tire pressures and, if necessary, correct the tire pres-
sure.
XRestart the tire pressure loss warning system when the tire
pressure is correct (
Ypage 347).
Check Tire Pres‐
sure Then Restart
Run Flat Indicator
Canada only:
The tire pressure loss warning system generated a display mes-
sage and has not been restarted since.
XSet the correct tire pressure in all four tires.
XRestart the tire pressure loss warning system (Ypage 347).
RunFlatIndicator
Inoperative
Canada only:
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
258Displa y messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
WarningTir eMal ‐
function
USAonly:
The tire pressur ein on eor mor etires has dropped suddenly. The
whee lposition appears in th emultifunction display.
GWARNIN G
Drivingwit h a flat tire poses aris kof th efollowing hazards :
Raflat tire affects th eabilit yto steer or brak eth evehicle.
Ryou could los econtrol of th evehicle.
Rcontinued drivin gwit h a flat tire will caus eexcessive heat build-
up and possibl y afire.
There is aris kof an accident.
XStop th evehicl ewithout makin gany sudden steerin gor brakin g
maneuvers .Pay attention to th etraffic condition sas you do so.
XSecur eth evehicl eagainst rollin gaway (Ypage 171).
XCheckth etires and ,if necessary, follow th einstruction sfo r a
flat tire (
Ypage 322).
TirePress. Moni‐
tor Currently
Unavailable
US Aonly:
Becaus ethere is interferenc efrom astron gsource of radi owaves,
no signal sfrom th etire pressur esensor sare detected. The tire
pressur emonitor is temporarily malfunctioning.
XDrive on .
The tire pressur emonitor restarts automatically as soo nas th e
problem has been resolved.
TirePress .Sen ‐
sor(s) Missin g
USAonly:
There is no signal from th etire pressur esensor of on eor several
wheels. The pressur eof th eaffecte dtire does no tappea rin th e
multifunction display.
XHav eth efault ytire pressur esensor replaced at aqualified spe -
cialist workshop .
TirePressure Mon ‐
itorInoperative
No Wheel Sensor s
USAonly:
The wheels mounted do no thav e a suitable tire pressur esensor .
The tire pressur emonitor is deactivated.
XMoun twheels wit hsuitable tire pressur esensors.
The tire pressur emonitor is activated automatically after drivin g
fo r a few minutes.
Tir ePress. Moni‐
tor Inoperative
US Aonly:
The tire pressur emonitor is faulty.
XVisit aqualified specialist workshop .
260Display messages
On-board computer and displays

Vehicle
Display messagesPossible causes/consequences andMSolutions
Depress Brake to
Start Engine
You have attempted to start the engine with the transmission in
positionNwithout depressing the brake pedal.
XDepress the brake pedal.
To Deselect P or
N, Depress Brake
and Start Engine
You have attempted to shift the transmission to position Ror D
without starting the engine.
XStart the engine.
XDepress the brake pedal.
iIt is only possible to shift the transmission from position Pto
the desired position if you depress the brake pedal. Only then
can the parking lock be deactivated. If you do not depress the
brake pedal, the DIRECT SELECT lever can still be moved but the parking lock remains engaged.
iAt transmission fluid temperatures below Ò4‡( Ò20 †) you can
only shift out of position Pinto another transmission position
when the engine is running.
Apply Brake to
Shift from 'P'
You have attempted to shift the transmission to position R,Nor D
without depressing the brake pedal.
XDepress the brake pedal.
Transmission Not
in P Risk of Vehi‐
cle Rolling Away
The driver's door is open or not fully closed and the transmission
is in position R,Nor D.
A warning tone also sounds.
GWARNING
The vehicle may roll away.
There is a risk of an accident.
XShift the transmission to position P.
XSecure the vehicle against rolling away (Ypage 171).
XClose the driver's door completely.
Display messages261
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
CAt leaston edoo ris open . Awarnin gtone also sounds.
XClos eall th edoors .
Ð
PowerSteeringMal‐
function See Oper‐
ator's Manual
The powe rsteerin gis malfunctioning.
A warnin gtone also sounds.
GWARNIN G
You will need to use mor eforc eto steer .
There is aris kof an accident.
XChec kwhether you are able to apply th eextr aforc erequired.
If you ar eabl eto steer safely:
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
If you ar eunable to steer safely:
XDo no tdrive on .
XConsult aqualified specialist workshop .
Phone No ServiceYour vehicleis outside th enetwork provider' stransmitter/
receiver range.
XWait until th emobile phone operational readiness symbol
appears in th emultifunction display.
¥
Check Washer Fluid
The washer flui dlevel in th ewasher flui dreservoir has dropped
belo wtheminimum .
XAddwasher flui d (Ypage 311).
Wiper Malfunction‐
ing
The windshield wiper sare malfunctioning.
XVisit aqualified specialist workshop .
Hazard Warning
Flashers Malfunc‐
tioning
The hazard warnin glamp sare faulty.
XVisit aqualified specialist workshop .
264Display messages
On-board computer and displays

SmartKey
Display messagesPossible causes/consequences andMSolutions
Â
Key Does Not
Belong to Vehicle
You have put the wrong SmartKey in the ignition lock.
XUse the correct SmartKey.
Â
TakeYourKeyfrom
Ignition
The SmartKey is in the ignition lock.
XRemove the SmartKey.
Â
Obtain a New Key
The SmartKey needs to be replaced.
XVisit a qualified specialist workshop.
Â
ReplaceKeyBattery
The SmartKey battery is discharged.
XChange the battery (Ypage 80).
Â
Don't Forget Your
Key
The display message is shown for a maximum of 60 seconds and
is only a reminder.
You have opened the driver's door with the engine switched off.
The SmartKey is not in the ignition lock.
XTake the SmartKey with you when you leave the vehicle.
Â
Key Not Detected
(red display message)
The SmartKey is not in the vehicle.
A warning tone also sounds.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 171).
XLocate the SmartKey.
A warning tone also sounds.
XPull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
XSecure the vehicle against rolling away (Ypage 171).
XInsert the SmartKey into the ignition lock and bring into key
mode.
Display messages265
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Â
Key Not Detected
(whitedisplay mes -
sage )
The SmartKey is currentl yundetected.
XChange th elocation of th eSmartKey in th evehicle.
If th eSmartKey still canno tbe detected:
XOperat eth evehicl ewit hth eSmartKey in th eignition lock.
Â
Remove'Start 'But‐
ton and Insert Key
The SmartKey is continually undetected.
KEYLESS-GO is temporarily malfunctionin gor is defective. Awarn -
in g tone also sounds.
XInser tth eSmartKey into th eignition loc kand tur nit to th e
desire dposition .
XVisitaqualified specialist workshop .
Warning and indicator lamps in th einstrument cluste r
General notes
Some systems carry out aself-diagnosi swhen th eignition is switched on .Therefore ,som e
indicato rand warnin glamp smay ligh tup or flas htemporarily. This behavio ris non-critical.
These indicato rand warnin glamp sonly indicate amalfunction if they ligh tup or flas hafter
startin gth eengin eor whils tdriving.
Safet y
Sea tbelt s
ProblemPossible causes/consequences and MSolutions
ü
Afterstartin gth e
engine, th ered seat
belt warnin glamp lights
up fo r 6seconds.The seat belt warnin glamp reminds th edriver and fron tpassenger
to faste ntheir seat belts.
XFaste nyour seat belt (Ypage 46).
ü
Afterstartin gth e
engine, th ered seat
belt warnin glamp lights
up. In addition , awarn -
in g tone sounds fo rup
to 6seconds.The driver's seat belt is no tfastened.
XFaste nyour seat belt (Ypage 46).
The warnin gtone ceases .
266Warning and indicator lamps in the instrument cluster
On-board computer and displays