2014 MERCEDES-BENZ GL-Class lock
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Safety systems
Display messages Possible causes/consequences and
M
MSolutions !÷
Currently Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual ABS (Anti-lock Braking System), ESP
®
(Electronic Stability
Program), BAS (Brake Assist), PRE-SAFE ®
, the HOLD function, hill
start assist, the adaptive brake lights, crosswind driving
assistance and ESP ®
trailer stabilization are temporarily
unavailable.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE ®
Brake may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster.
ATTENTION ASSIST is deactivated.
Possible causes are:
R self-diagnosis is not yet complete.
R the on-board voltage may be insufficient.
G WARNING
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
affected. 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.
X Carefully drive a suitable distance, 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 display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. !÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ABS, ESP
®
, BAS, PRE-SAFE ®
, HOLD, hill start assist, crosswind
driving assistance and ESP ®
trailer stabilization are unavailable
due to a malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE ®
Brake may also have failed.
The $ (USA only)/J (Canada only),÷,åand!
warning lamps in the instrument cluster also light up.
ATTENTION ASSIST is deactivated. Display messages
291On-board computer and displays Z
Page 294 of 462
Display messages Possible causes/consequences and
M
MSolutions G
WARNING
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
affected. 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.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. ÷
Currently Currently
Unavailable See Unavailable See
Operator's Manual Operator's Manual ESP
®
, BAS, PRE-SAFE ®
, HOLD, hill start assist, crosswind driving
assistance and ESP ®
trailer stabilization are unavailable due to a
malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE ®
Brake may also have failed.
In addition, the ÷andå warning lamps light up in the
instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
G WARNING
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 braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a suitable distance, 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 display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop. 292
Display
messagesOn-board computer and displays
Page 295 of 462
Display messages Possible causes/consequences and
M
MSolutions ÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual ESP
®
, BAS, PRE-SAFE ®
, HOLD, hill start assist, crosswind driving
assistance and ESP ®
trailer stabilization are unavailable due to a
malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE ®
Brake may also have failed.
In addition, the ÷andå warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING
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 braking distance in an emergency braking situation can thus
increase.
If ESP ®
is not operational, ESP ®
is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop. T!
÷
Inoperative See Inoperative See
Operator's Manual Operator's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS,
PRE-SAFE ®
, HOLD, hill start assist, crosswind driving assistance
and ESP ®
trailer stabilization are unavailable due to a malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE ®
Brake may also have failed.
In addition, the ÷,åand! warning lamps light up in
the instrument cluster and a warning tone sounds.
ATTENTION ASSIST is deactivated.
G WARNING
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
affected. 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.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. Display
messages
293On-board computer and displays Z
Page 298 of 462
Display messages Possible causes/consequences and
M
MSolutions The yellow
!warning lamp lights up. If you manually apply or
release the electric parking brake, the red F(USA
only)/ !(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X Shift the transmission to P.
X Visit a qualified specialist workshop. F(USA
only)
!(Canada
only)
Parking Brake Parking Brake
Inoperative Inoperative The yellow
!warning lamp lights up. The red F(USA
only)/ !(Canada only) indicator lamp flashes for about ten
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 Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking
brake:
X Switch off the ignition and turn it back on.
X Engage or release the electric parking brake.
If the electric parking brake still cannot be released:
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up and the red F(USA
only)/ !(Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X Shift the transmission to P.
X Visit a qualified specialist workshop. F(USA
only)
!(Canada
only)
Turn On the Turn On the
Ignition to Ignition to
Release the Release the
Parking Brake Parking Brake The red
F(USA only)/ !(Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the
ignition was switched off.
X SmartKey: turn the SmartKey to position 1in the ignition lock.
X KEYLESS-GO: switch on the ignition.296
Display
messagesOn-board computer and displays
Page 309 of 462
Display messages Possible causes/consequences and
M
MSolutions ?
Coolant Too Hot Coolant Too Hot
Stop Vehicle Turn Stop Vehicle Turn
Engine Off Engine Off The coolant is too hot.
A warning tone also sounds.
G WARNING
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.
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Secure the vehicle against rolling away ( Ypage 188).
X Wait until the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice.
X Do not start the engine again until the display message goes out
and the coolant temperature is below 248 ‡ (120 †).
Otherwise, the engine could be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
Under normal operating conditions and with the specified coolant
level, the coolant temperature may rise to 248 ‡ (120 †). # The battery is not being charged.
A warning tone also sounds.
Possible causes are:
R
a defective alternator
R a torn poly-V-belt
R a malfunction in the electronics
X Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions.
X Open the hood.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is not damaged:
X Visit a qualified specialist workshop. Display
messages
307On-board computer and displays Z
Page 313 of 462
Display messages Possible causes/consequences and
M
MSolutions ACTIVE CURVE
ACTIVE CURVE
SYSTEM Malfunction SYSTEM Malfunction The Active Curve System is faulty. The vehicle's handling
characteristics may be affected.
X
Do not drive at speeds above 50 mph (80 km/h).
X Have the vehicle checked at a qualified specialist workshop. ACTIVE CURVE ACTIVE CURVE
SYSTEM SYSTEM
Malfunction
Malfunction
see Operator's
see Operator's
Manual Manual The Active Curve System is faulty. The vehicle's handling
characteristics are severely impaired. A warning tone also sounds.
G WARNING
There is a risk of an accident.
X Drive on carefully.
X Adjust your driving style to the altered handling characteristics.
X Avoid sudden acceleration in tight bends and fast steering
movements.
X Do not drive at speeds above 50 mph (80 km/h).
X Visit a qualified specialist workshop immediately. Á
Raising Raising
Max.
Max.Speed
Speed
12 mph
12 mph The vehicle is being adjusted to off-road level 3. The display
message informs you of the maximum speed permissible for off-
road level 3.
X
Do not drive at speeds above 12 mph (20 km/h). g
Lowering Lowering
Max.
Max.
Speed 12 mph
Speed 12 mph The vehicle is being lowered from off-road level 3 to off-road level
2. The display message informs you of the maximum speed
permissible for off-road level 3.
X
Do not exceed 12 mph (20 km/h) until the vehicle has reached
off-road level 2. 8
Different. Lock Different. Lock
Sys. Malfunction Sys. Malfunction The differential lock is malfunctioning.
X
Do not drive at speeds above 50 mph (80 km/h).
X Have the vehicle checked at a qualified specialist workshop. 8
Different. Different.
Locking
Locking
Sys. Cooling Down
Sys. Cooling Down
Please Wait Please Wait The differential lock is too hot and has been disengaged.
X
Drive on carefully.
X Allow the differential lock to cool down.
The differential lock reengages as soon as it has cooled down. Display messages
311On-board computer and displays Z
Page 323 of 462
Display messages Possible causes/consequences and
M
MSolutions Transmission Not
Transmission Not
in P Risk of in P Risk of
Vehicle Rolling Vehicle Rolling
Away Away The driver's door is open and the transmission is in position
R,N
or D.
A warning tone also sounds.
X Shift the transmission to position P.
X Secure the vehicle against rolling away ( Ypage 188). Service Required Service Required
Do Do
Not
Not Shift
Shift Gears
Gears
Visit Dealer
Visit Dealer You cannot change the transmission position due to a malfunction.
A warning tone also sounds.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,Nor Pis selected:
X Notify a qualified specialist workshop or breakdown service. Only Shift to 'P' Only Shift to 'P'
when Vehicle is when Vehicle is
Stationary Stationary The vehicle is moving.
X
Stop the vehicle safely as soon as possible, paying attention to
road and traffic conditions.
X Shift the transmission to position P.A The tailgate is open.
G WARNING
When the engine is running, exhaust gases can enter the vehicle
interior if the tailgate is open.
There is a risk of poisoning.
X Close the tailgate. ? The hood is open.
G WARNING
The open hood may block your view when the vehicle is in motion.
There is a risk of an accident.
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 ( Ypage 188).
X Close the hood. C At least one door is open.
A warning tone also sounds.
X
Close all the doors. Display
messages
321On-board computer and displays Z
Page 324 of 462
Display messages Possible causes/consequences and
M
MSolutions _
2nd 2nd
Seat
Seat Row,
Row,Left
Left
Not Locked
Not Locked or2nd
2nd
Seat Row, Right
Seat Row, Right
Not Locked Not Locked The second row of seats is not engaged on the left-hand or right-
hand side.
X
Fold back the second row of seats until it engages. _
3rd 3rd
Seat
Seat Row,
Row,Left
Left
Not Locked
Not Locked or3rd
3rd
Seat Row, Right
Seat Row, Right
Not Locked Not Locked The third row of seats is not engaged on the left-hand or right-hand
side.
X
Fold back the third row of seats until it engages. Ð
Power Steering Power Steering
Malfunction See Malfunction See
Owner's Manual Owner's Manual The power steering is malfunctioning.
A warning tone also sounds.
G WARNING
You will need to use more force to steer.
There is a risk of an accident.
X Check whether you are able to apply the extra force required.
X If you are able to steer safely: carefully drive on to a qualified
specialist workshop.
X If you are unable to steer safely: do not drive on. Contact the
nearest qualified specialist workshop. Phone No Service Phone No Service Your vehicle is outside the network provider's transmitter/
receiver range.
X
Wait until the mobile phone operational readiness symbol
appears in the multifunction display. ¥
Check Washer Fluid Check Washer Fluid The washer fluid level in the washer fluid reservoir has dropped
below the minimum.
X
Add washer fluid ( Ypage 374). Wiper Wiper
Malfunctioning Malfunctioning The windshield wipers are malfunctioning.
X
Visit a qualified specialist workshop. Hazard Warning Hazard Warning
Flashers Flashers
Malfunctioning Malfunctioning The hazard warning lamps are faulty.
X
Visit a qualified specialist workshop. 322
Display
messagesOn-board computer and displays