2018 MERCEDES-BENZ GLC warning light

Display messages
Possible causes/consequences and P Solutions
u Rea r Lef t Malfunc‐
tio n Servic e
Required or Rea r
Right Malfunction
Servic e Required The rear left-han d or right-hand restrain t system is malfunctioning .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Rea r Center Malfunc‐
tio n Servic e
Required The rear center restrain t system is malfunctioning . The u warning
lamp also lights up in th e instrumen t cluster.
G WARNIN G
The air bags or Emergency Tensioning Devices may either be triggered
unintentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.
u Lef t Sid e Curtai n
Airbag Malfunction
Servic e Required or
Right Sid e Curtai n
Airbag Malfunction
Servic e Required The left-han d or right-hand window curtai n air bag is malfunctioning .
The u warning lamp also lights up in th e instrumen t cluster.
G WARNIN G
The lef t or right window curtai n air bag may either be triggered unin-
tentionally or, in th e event of an accident, may no t be triggered .
There is an increased ris k of injury.X
Visit a qualified specialist workshop immediately.248
Display messages
On-board computer and displays

Display messages
Possible causes/consequences and P Solutions
Fo r further information about th e Occupant Classification System, see
( Y
page 52) .
Lights Display messages
Possible causes/consequences and P Solutions
I Check Lef t Low Bea m
(Example) The bulb in question is malfunctioning .X
Visit a qualified specialist workshop .
or X
Chec k whether you are permitte d to replace th e bulb yourself
( Y
page 117).
i LE D ligh t sources: th e display message for th e correspondin g
lamp only appear s when all th e LEDs in th e lamp hav e failed.
I Active Headlamps
Inoperative The active ligh t function is malfunctioning .X
Visit a qualified specialist workshop .
I Malfunction See
Operator’ s Manual The exterio r lighting is malfunctioning .X
Visit a qualified specialist workshop .
Vehicles wit h trailer to w hitch : a fus e may hav e blown .X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 158).X
Chec k th e fuses ( Y
page 347).X
If necessary, replace th e blown fuse. Observ e th e warning notes.
If th e display message remain s on show:X
Visit a qualified specialist workshop .
I Aut o Lam p Function
Inoperative The ligh t sensor is malfunctioning .X
Visit a qualified specialist workshop .
I Switch Off Lights You leav e th e vehicl e and th e lights are switched on . A warning tone
also sounds. X
Turn th e ligh t switch to th e X position .
I Switch On Headlamps You are drivin g wit h low-beam headlamp s switched off .X
Turn th e ligh t switch to th e X or X position .Display messages 25 1
On-board computer and displays Z

Display messages
Possible causes/consequences and P Solutions
= Sto p Vehicl e See
Operator' s Manual The battery is no longer bein g charged and th e condition of charg e is
to o low.
A warning tone also sounds. X
Pull ove r and stop th e vehicl e safely and switch off th e engine, pay-
ing attention to roa d and traffic conditions.X
Secur e th e vehicl e against rollin g away ( Y
page 158).X
Observ e th e instruction s in th e = See Operator' s Manual
display message .X
Consult a qualified specialist workshop .
= Sto p Vehicl e Leave
Engine Runnin g The battery condition of charg e is to o low.X
Pull ove r and stop th e vehicl e safely as soo n as possible, payin g
attention to roa d and traffic conditions. Do no t continu e drivin g
under any circumstances. X
Leav e th e engin e running.X
Wait until th e display message disappear s before pullin g away.
= Start Engine See
Operator' s Manual The engin e is switched off and th e condition of charg e is to o low.X
Switc h off electrical consumer s that you do no t need, suc h as th e
rear window defroste r and interior lighting .X
Leav e th e engin e runnin g for a few minute s or drive a lon g distance.
The battery is bein g charged.

Safety systems Warning/
indicator
lamp Q Signal type
Possible causes/consequences and P Solutions
'M
Q ' (USA only), M (Canada only): the red brake system warning lamp is lit
while the engine is running.
A warning tone also sounds.
G WARNING
The brake boosting effect is malfunctioning and the braking characteristics may be
affected.
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. Do not continue driving under any circumstances. X
Secure the vehicle against rolling away ( Y
page 158).X
Consult a qualified specialist workshop. X
Observe the additional display messages in the multifunction display.
'M
Q ' (USA only), M (Canada only): the red brake system warning lamp lights
up while the engine is running.
A warning tone also sounds.
There is not enough brake fluid in the brake fluid reservoir.
G WARNING
The braking effect may be impaired.
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. Do not continue driving under any circumstances. X
Secure the vehicle against rolling away ( Y
page 158).X
Do not add brake fluid. Adding more will not correct the malfunction. X
Consult a qualified specialist workshop. X
Observe the additional display messages in the multifunction display.
'
Q USA only: the red brake system warning lamp is lit while the engine is running.
The multifunction display also shows a display message with the & symbol.
The brake pads/linings have reached their wear limit. X
Visit a qualified specialist workshop.270
Warning and indicator lamps in the instrument cluster
On-board computer and displays

General notes The multimedia system section in this Opera-
tor's Manual describes the basic principles for
operation. More information can be found in the
Digital Operator's Manual.
Important safety notes
G WARNING
If you operate information systems and com-
munication equipment integrated in the vehi-
cle when driving, you may be distracted from
the traffic situation. You could also lose con-
trol of the vehicle. There is a risk of an acci-
dent.
Only operate this equipment when the traffic
situation permits. If you are not sure that this
is possible, park the vehicle paying attention
to traffic conditions and operate the equip-
ment when the vehicle is stationary.
You must observe the legal requirements for the
country in which you are currently driving when
operating the multimedia system.
The multimedia system calculates the route to
the destination without taking the following into
account, for example: R
traffic lights R
stop and yield signs R
parking or stopping restrictions R
road narrowing R
other road and traffic rules and regulations
The multimedia system may give incorrect nav-
igation recommendations if the actual street/
traffic situation does not correspond with the
digital map's data.
For example: R
a diverted route R
the road layout or the direction of a one-way
street has been changed
For this reason, you must always observe road
and traffic rules and regulations during your
journey. Road and traffic rules and regulations
always have priority over multimedia system
driving recommendations. Navigation announcements are intended to
direct you while driving without diverting your
attention from the road and driving.
Please always use this feature instead of con-
sulting the map display for directions. Looking
at the icons or map display can distract you from
traffic conditions and driving, and increase the
risk of an accident.
This equipment complies with FCC radiation
exposure limits set forth for uncontrolled equip-
ment and meets the FCC radio frequency (RF)
Exposure Guidelines in Supplement C to OET65.
This equipment has very low levels of RF energy
that is deemed to comply without maximum
permissive exposure evaluation (MPE). How-
ever, it is recommended to insta l l it at a distance
of at least 8 inches (approx. 20 cm) between the
radiation source and a person's body (not
including limbs such as hands, wrists, feet and
legs).
G WARNING
Modifications to electronic components, their
software as well as wiring can impair their
function and/or the function of other net-
worked components. In particular, systems
relevant to safety could also be affected. As a
result, these may no longer function as inten-
ded and/or jeopardize the operating safety of
the vehicle. There is an increased risk of an
accident and injury.
Never tamper with the wiring as well as elec-
tronic components or their software. You
should have all work to electrical and elec-
tronic equipment carried out at a qualified
specialist workshop.
Function restrictions
For safety reasons, some functions are restric-
ted or unavailable while the vehicle is in motion.
You will notice this, for example, because either
you will not be able to select certain menu items
or a message will appear to this effect.280
Function restrictions
Multimedia system

Depending on the vehicle's equipment, the fol-
lowing may be in the stowage space: R
an SD card slot R
a multimedia connector unit with two USB
ports, e.g. for iPod ®
, iPhone ®
or MP3 player
(see the Digital Operator's Manual) R
a mobile phone bracket R
a small stowage space in the upper front sec-
tion
Stowage compartment in the doors
You can store items such as a rolled-up fluores-
cent jacket (driver's door) and the vehicle docu-
ment wallet (front-passenger door) in stowage
space C in the doors.
In doors D you can store bottles with a capacity
of up to 34 fl. oz. (1.0 liter).
Stowage compartments in the rear
Stowage compartment in the rear armrest
! Do not sit on or support your body weight on
the rear seat armrest when it is folded down,
as you could otherwise damage it.
! Close the cover of the stowage compart-
ment before folding the rear seat armrest
back into the seat backrest. X
To open: fold down the seat armrest. X
Press on the front of release catch C and fold
the cover of the armrest upwards.
Additional stowage space Depending on the equipment, the following
additional stowage areas are available in the
vehicle: R
card and coin holder in the dashboard above
the light switch (not suitable for holding thin
objects such as shopping tokens) R
the open stowage compartment in the center
console R
stowage net in the front-passenger footwell R
the map pockets on the back of the driver's
and front-passenger seat R
parcel net on the left-hand side in the cargo
compartment
Observe the loading guidelines ( Y
page 290)
and the safety notes regarding stowage spaces
( Y
page 290).
Ski and snowboard bag
Important safety notes
G WARNING
The skibag in conjunction with the lashing
straps cannot restrain any objects other than
skis.
Vehicle occupants could be struck in the
event of sudden braking or an accident, for
instance, if you: R
transport other heavy or sharp-edged
objects in the skibag R
do not secure the skibag with the lashing
straps
There is a risk of accident and injury.
Store only skis in the skibag. Always secure
the skibag with the lashing straps so that it
cannot move around.
A maximum of four pairs of skis or two snow-
boards can be transported in the ski and snow-
board bag.292
Sto wag e areas
Stowag e an d features

display in the instrument cluster. A warning
tone also sounds. X
Adjust the head restraints if necessary
( Y
page 102). X
Move the driver's or front-passenger seat
back if necessary.
Middle rear seat backrest: X
Move the driver's or front-passenger seat
forward if necessary. X
Fold seat backrest C back until it engages.
Red lock status indicator D is no longer visi-
ble. X
Adjust the head restraints if necessary
( Y
page 102). X
Move the driver's or front-passenger seat
back if necessary.
Locking the center rear seat backrest
In order to prevent the cargo compartment from
being accessed by unauthorized persons, the
center seat backrest can be locked using a
catch. The center seat backrest can only be fol-
ded forward together with the left seat backrest. X
To lock: fold the left and center seat backr-
ests forward. Make sure that the center and left seat backrests are engaged and joined
together. X
Slide catch C upwards.
The release mechanism of the center seat
backrest is locked. X
To unlock: fold the left and center seat backr-
ests forward. X
Slide catch C downwards.
Adjusting the angle of the rear seat
backrests (cargo position)
Vehicles with the stowage space package: to
enlarge the cargo compartment, you can adjust
the rear seat backrests to a 10 degrees steeper
angle (cargo position). X
Fold the seat backrest forward ( Y
page 293).X
Move handle C in the direction of the arrow. X
Push back seat backrest D as far as han-
dle C until the backrest engages.
The cargo position has been reached.
Securing loads
Cargo tie-down rings Observe the following notes on securing loads: R
Observe the loading guidelines ( Y
page 290).R
Secure the load using the cargo tie-down
rings. R
Distribute the load on the cargo tie-down
rings evenly. R
Do not use elastic straps or nets to secure a
load, as these are only intended as an anti-slip
protection for light loads. R
Do not route tie-downs across sharp edges or
corners. R
Pad sharp edges for protection.Stowage areas 295
Stowage and features Z

C
Cargo tie-do wn rings in the rear-compart-
ment footwe ll (veh icle s wit h cargo net)
C
Cargo tie-do wn rings in the cargo compart-
ment
Bag hook
G WAR NING
The bag hooks cannot restrain heavy objects
or items of luggage. Objects or items of lug-
gage could be flung around and there by hit
veh icle occupants when braking or abrupt ly
changing dire ctions. There is a risk of injury.
On ly hang light objects on the bag hooks.
Never hang hard, sharp-edged or fragile
objects on the bag hooks.
! The bag hook can bear a maximum load of
6. 6lbs (3kg) and should not be used to secure
a load. C
Bag hook
Cargo compartment cover
Important safety notes
G WARNING
On its own, the cargo compartment cover
cannot secure or restrain heavy objects,
items of luggage and heavy loads. You could
be hit by an unsecured load during sudden
changes in direction, braking or in the event of
an accident. There is an increased risk of
injury or even fatal injury.
Alwa ys store objects so that they cannot be
flung aroun d. Secure objects, luggage or
loads against slipping or tipping over, e.g. by
using tie downs, even if you are using the
cargo compartment cover.
! When loadin g the vehicle, make sure that
you do not stack the load in the cargo com-
partment higher than the lower edge of the
side windows. Do not place heavy objects on
top of the cargo compartment cover.
The cargo compartment cover is secured behind
the rear bench seat backrest.296
Stowage areas
Stowage and features