2016 MERCEDES-BENZ GL-Class warning

Rsurround lighting:the exterior lighting
remains lit for 40 seconds after unlocking
with the SmartKey. If you start the engine,
the surround lighting is switched off and
automatic headlamp mode is activated
(
Ypage 130).
Rexterior lighting delayed switch-off: the
exterior lighting remains lit for 60 seconds
after the engine is switched off. If you close
all the doors and the tailgate, the exterior
lighting goes off after 15 seconds.
iDepending on your vehicle's equipment,
when the surround lighting and delayed
switch-off exterior lighting are on, the fol-
lowing light up:
RParking lamps
RDaytime running lamps
RSide marker lamps
RSurround lighting in the exterior mirrors
Activating/deactivating the interior light-
ing delayed switch-off
If you activate the Light. Delay
function,
the interior lighting remains on for
20 seconds after you remove the SmartKey
from the ignition lock.
XPress the =or; button on the steer-
ing wheel to select the Settings
menu.
XPress the:or9 button to select the
Lights
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Lighting delayed sw.-off
function.
If the Interior
LightingDelayfunction
has been switched on, the vehicle interior is
displayed in orange in the multifunction
display.
XPress the abutton to save the setting.
Vehicle submenu
Activating/deactivating the automatic
door locking mechanism
If you activate the Automatic Door Lock
function, the vehicle is centrally locked above
a speed of approximately 9 mph (15 km/h).
XPress the=or; button on the steer-
ing wheel to select the Sett
menu.
XPress the:or9 button to select the
Vehicle
submenu.
XPress ato confirm.
XPress the :or9 button to select the
Automatic Door Lock
function.
When the Automatic
DoorLockfunction
is activated, the vehicle doors are displayed
in orange in the multifunction display.
XPress the abutton to save the setting.
For further information on the automatic lock- ing feature, see (
Ypage 91).
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic
Lockfunction,
an acoustic signal sounds when you lock the
vehicle.
XPress the =or; button on the steer-
ing wheel to select the Sett.
menu.
XPress:or9 to select the Vehicle
submenu.
XPressato confirm.
XPress the :or9 button to select the
Acoustic Lock
function.
If the Acoustic
Lockfunction is activated,
the & symbol in the multifunction dis-
play lights up orange.
XPress the abutton to save the setting.
Convenience submenu
Activating/deactivating the EASY-
ENTRY/EXIT feature
GWARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel, you and other vehicle
Menus and submenus285
On-board computer and displays
Z

Safety systems
Display messagesPossible causes/consequences andMSolutions
!÷
Currently Unavail‐
able See Opera‐
tor's Manual
ABS (Anti-lock Brake System), BAS (Brake Assist), ESP®(Elec-
tronic Stability Program), ESP®trailer stabilization, PRE‑SAFE®,
the HOLD function, hill start assist, Crosswind Assist, STEER CON-
TROL, Active Lane Keeping Assist and Active Blind Spot Assist 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:
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 suitable distance, making slight steering move-
ments 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.
!÷
Inoperative See
Operator's Manual
ABS, BAS, ESP®, ESP®trailer stabilization, PRE ‑SAFE®, the HOLD
function, hill start assist, Crosswind Assist, STEER CONTROL,
Active Lane Keeping Assist and Active Blind Spot Assist are
unavailable due to a malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE‑SAFE
®Brake may also have failed.
The $ (USA only) or J(Canada only), ÷,åand!
warning lamps in the instrument cluster also light up.
ATTENTION ASSIST is deactivated.
Display messages291
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
GWARNING
The brakesystem continues to function normally, but without th e
function slisted above. The wheels could therefore loc kif you
brak ehard, fo rexample.
The steerabilit yand brakin gcharacteristics may be severely affec -
ted. The brakin gdistanc ein an emergenc ybrakin gsituation can
increase .
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increase dris kof skiddin gand an accident.
XDrive on carefully.
XVisit aqualified specialist workshop immediately.
÷
Currently unavail‐
abl eSee Opera‐
tor's Manual
ES P®,ES P®trailer stabilization ,BAS, PRE ‑SAFE®, th eHOLD func-
tion ,hill start assist ,Crosswin dAssist, STEE RCONTROL ,Active
Lan eKeepin gAssis tand Active Blind Spot Assis tare unavailable
due to amalfunction .
COLLISION PREVENTION ASSIST ,BA SPLU Sand
PRE ‑S AF E
®Brake may also hav efailed.
In addition ,th e÷ andå warnin glamp sligh tup in th e
instrumen tcluster.
The self-diagnosi sfunction might no tbe complete, fo rexample.
ATTENTION ASSIST is deactivated.
GWARNIN G
The brakesystem continues to function normally, but without th e
function slisted above. The wheels could therefore loc kif you
brak ehard, fo rexample.
The brakin gdistanc ein an emergenc ybrakin gsituation can thus
increase .
If ES P
®is no toperational, ES P®is unable to stabiliz eth evehicle.
There is an increase dris kof skiddin gand an accident.
XCarefull ydrive asuitable distance, makin gslight steerin gmove-
ments at aspeed abov e12 mph (20 km/h).
If th edisplay message disappears, th efunction smentioned
abov eare available again .
If th emultifunction display still shows th edisplay message :
XDrive on carefully.
XVisitaqualified specialist workshop .
292Display messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
Ø
CheckAdditiveSee
Operator'sManual
The DE Ftan kis almost empty.
XHav eth eDE Ftan kfilled as soo nas possibl eat aqualified spe -
cialist workshop (
Ypage 186).
Ø
Remaining Starts :
16
The DEFlevel has fallen to aminimum .You can start th eengin e a
further 16 times .
XHaveth eDE Ftan kfilled immediately at aqualified specialist
workshop (
Ypage 186).
iYou can start th eengin e afurther 16 times .If DE Fis no tadded ,
it will then no tbe possibl eto restar tth eengine. Refill th eDE F
tan kwit happroximately 1gal (3.8 l)DEF (
Ypage 186).
Driving systems
Display messagesPossible causes/consequences and MSolutions
À
Attention Assist:
Take a Break!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.
XIf necessary, take a break.
During long journeys, take regular breaks in good time so you get enough rest.
À
Attention Assist
Inoperative
ATTENTION ASSIST is inoperative.
XVisit a qualified specialist workshop.
Á
Drive More Slowly
You cannot change the vehicle level. Possible causes are:
Ryou are driving too fast for the selected vehicle level.
Ryou are towing a trailer.
Rthe socket of the trailer tow hitch is being used, e.g. for a bicyclerack.
XDrive more slowly and then select the desired vehicle level
again.
RVehicles with the ON&OFFROAD package (Ypage 213)
RVehicles with the AIRMATIC package (Ypage 219)
XObserve the notes on towing a trailer (Ypage 264).
310Displa y messages
On-board computer and displays

Tires
Display messagesPossible causes/consequences andMSolutions
Check Tire Pres‐
sure Soon
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 is not correct.
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 189).
XCheck the tires and, if necessary, follow the instructions for a
flat tire (
Ypage 387).
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 412).
Check Tire Pres‐
sure Then Restart
Run Flat Indicator
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 412).
RunFlatIndicator
Inoperative
The tire pressure loss warning system is faulty.
XVisit a qualified specialist workshop.
Please Correct
Tire Pressure
The tire pressure is too low in at least one of the tires, or the tire
pressure difference between the wheels is too great.
XCheck the tire pressures at the next opportunity (Ypage 412).
XIf necessary, correct the tire pressure.
XRestart the tire pressure monitor (Ypage 415).
318Displa y messages
On-board computer and displays

Display messagesPossible causes/consequences andMSolutions
¥
Topupwasherfluid
The washer fluidlevel in th ewasher flui dreservoir has dropped
belo wtheminimum .
XAddwasher flui d (Ypage 374).
Wiper malfunction‐
ing
The windshield wiper sare malfunctioning.
XVisit aqualified specialist workshop .
Hazard warning
lamps malfunction‐
ing
The hazard warnin glamp sare faulty.
XVisit aqualified specialist workshop .
SmartKey
Display messagesPossible causes/consequences and MSolutions
Â
Key DoesNot
Belong to Vehicl e
You haveput th ewrong SmartKey in th eignition lock.
XUse th ecorrec tSmartKey.
Â
Tak eYourKeyfrom
Ignition
The SmartKey is in th eignition lock.
XRemove th eSmartKey.
Â
Obtain aNew Key
The SmartKey needs to be replaced.
XVisit aqualified specialist workshop .
Â
ReplaceKeyBattery
The SmartKey battery is discharged.
XChange th ebattery (Ypage 85) .
Â
Don't Forget You r
Key
The SmartKey is notin th eignition lock. You hav eopened th e
driver's doo rwit hth eengin eswitched off.
This display message is displayed fo r amaximum of 60 seconds
and is simply areminder .
XTaketh eSmartKey wit hyou when you leav eth evehicle.
Â
Key Not Detected
(whit edisplay 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.
Display messages32 3
On-board computer and displays
Z

Display messagesPossible causes/consequences andMSolutions
Â
Key Not Detected
(reddisplay message )
The SmartKey is no tin th evehicle.
A warnin gtone also sounds.
If th eengin eis switched off, you can no longer loc kth evehicl e
centrall yor start th eengine.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XLocate th eSmartKey.
Becaus ethere is interferenc efrom astron gsource of radi owaves,
th eke yis no tdetecte dwhils tth eengin eis running .
A warnin gtone also sounds.
XPull ove rand stop th evehicl esafely as soo nas possible, payin g
attention to roa dand traffic conditions.
XSecur eth evehicl eagainst rollin gaway (Ypage 189).
XInsertth eSmartKey into th eignition loc kand bring into ke y
mode.
Â
Remove'Start 'But‐
ton and Insert Key
RThe SmartKey detection function has atemporar ymalfunction
or is faulty.
RThe SmartKey is continually undetected.
A warnin gtone 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.
324Warning and indicator lamps in the instrument cluster
On-board computer and displays

Safety
Seat belts
ProblemPossible causes/consequences and MSolutions
ü
After starting the
engine, the red seat
belt warning lamp lights
up for 6 seconds.The seat belt warning lamp reminds the driver and front passenger
to fasten their seat belts.
XFasten your seat belt (Ypage 48).
ü
After starting the
engine, the red seat
belt warning lamp lights
up. In addition, a warn-
ing tone sounds for up
to 6 seconds.The driver's seat belt is not fastened.
XFasten your seat belt (Ypage 48).
The warning tone ceases.
ü
The red seat belt warn-
ing lamp lights up after
the engine starts, as
soon as the driver's or
the front-passenger
door is closed.The driver or front passenger has not fastened their seat belt.
XFasten your seat belt (Ypage 48).
The warning lamp goes out.
There are objects on the front-passenger seat.
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out.
ü
The red seat belt warn-
ing lamp flashes and an
intermittent audible
warning sounds.The driver or front passenger has not fastened their seat belt. The
vehicle is being driven faster than 15 mph (25 km/h) or has briefly
been driven faster than 15 mph (25 km/h).
XFasten your seat belt (Ypage 48).
The warning lamp goes out and the intermittent warning tone
ceases.
There are objects on the front-passenger seat. The vehicle is being
driven faster than 15 mph (25 km/h) or has briefly been driven
faster than 15 mph (25 km/h).
XRemove the objects from the front-passenger seat and stow
them in a secure place.
The warning lamp goes out and the intermittent warning tone
ceases.
Warning and indicator lamps in the instrument cluster325
On-board computer and displays
Z