MERCEDES-BENZ GL SUV 2012 Owners Manual

Displa
ymessages Possible causes/consequences and
M Solutions
Á
ma
x.20 km/h Yo
ua re exceedi ngthe speed permissible for the selected off-road
level.
In addition, the vehicle level display appears betwee nthe vehicle
icon and the display message, and awarning tone sounds.
G WARNING
The vehicle can tip and roll over.
There is arisk of an accident.
X Adjust your drivin gstyle to the altered handling characteristics.
X Only make slight steering movement sand avoid fast steering
movements.
X Do not excee d20km/h unti lthe vehicle has reached off-road
level 2. Active Curv
eSys‐ tem malfunctioning Th
eA ctive Curve Syste misfaulty. The vehicle's handling charac-
teristics may be affected.
X Do not drive at speeds above 80 km/h.
X Have the vehicle checked at aqualified specialist workshop. Active Curv
eSys‐ tem malfunctioning
see Owner's Manual Th
eA ctive Curve Syste misfaulty. The vehicle's handling charac-
teristics are severely impaired. Awarning ton ealso sounds.
G WARNING
Ther eisar isk of an ac cident.
X Drive on carefully.
X Adjust your driving styl etothe altered handling characteristics.
X Avoid sudde nacceleratio nintightbends and fast steering
movements.
X Do not driv eatspeeds above 80 km/h.
X Visit aqualified specialist workshop immediately. g
Loweri
ng max.
20 km/h Th
ev ehicle is being lowered from off -road leve l3tooff-road level
2. Th edisplay message informs you of the maximum speed per-
missible for off- road level 3.
X Do not exceed 20 km/ huntil the vehicl ehas reached off-road
level 2. 8
Different. lock
sys. Malfunction The differential lock is malfunc
tioning.
X Do not drive at speeds abov e80km/h.
X Have th evehicle checked at aqualified specialist workshop. 308
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
8
Di
fferent. locking
sys
.c oolin gdown Please wait Th
ed ifferential loc kistoo 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. LO
WR ANGE Stop Apply parking brake Ag
earshif tprocess ha sbeen can celled. LOW RANGE is in the
neutral position. There is no connection between the engine and
the driv ewheels.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to roa dand traffic conditions.
X Engag ethe electric parkin gbrake .Don ot con tinue driving under
any circumstances.
X Repe atthe gearshift process. LOW RANGE Malfunc‐
tion To park,
apply parking brake LO
WR ANGE is malfunctioning.
X Do not drive at speeds above 80 km/h.
X Whe nparking, secure the vehicle against rolling away
(Y page 181).
X Have the vehicle checked at aqualified specialist workshop. LO
WR ANGE max. 40 km/h Yo
uh ave exceeded the maximum spee dfor the gearshift process.
X Drive mor eslowly.
The gear change is made. LO
WR ANGE max. 70 km/h Yo
uh ave exceeded the maximum spee dfor the gearshift process.
X Drive mor eslowly.
The gear change is made. LOW RANGE Shift to
position
Nbriefly Yo
uh ave reduced the vehicle speed, but the automatic transmis-
sion is not in position N.
X Briefly shift the automatic transmission to position N.LOW RANGE Shifting
cancelle
dPlease reactivate Th
eg earshif tprocess ha sbeen cancelled.
X Repeat the gearshif tprocess. Ã
inoperative DSR (Downhil
lSpeed Regulation) is deactivated due to afault.
X Hav eDSRchecked at aqualified specialist workshop. Display messages
309On-boar dcomputer and displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
Sp
eed Limit Assist
currently unavail‐
abl
eS ee Owner's Manual Spee
dLimit Assist is deactivated an dtemporarily inoperative.
Possible causes:
R the windscreen is dirt yinthe camera's field of vision.
R visibility is impaired due to heav yrain, snow or fog.
X Clea nthe windscreen.
If the system detec tsthat the camera is fully operational, the dis-
play message disappears.
Speed Limit Assist is operational again. Speed Limit
Assist
:Unavaila‐ ble in this country Spee
dLimit Assist is only available in certain countries.
X Driv eon.
Spee dLimit Assist is available again as soon as you drive in a
countr yinwhich its use is approved. Speed Limit Assist
inoperative Speed Limi
tAssist is faulty.
X Visit aqualified specialist workshop. ë
Off The HOLD function is deactivated. The vehicle is skidding.
Aw
arning ton ealso sounds.
X Reactivat ethe HOL Dfunction later (Y page 211). Ra
dars ensor deac‐ tivate
dSee Own‐ er'
sM anual Th
er adar sensor system is deactivated.
X Check whether or not the radar sensor system ma ybeactivated
(Y pag e433).
X Switch on the rada rsensor system (Y page 283). Rada
rsensor deac‐ tivated autom. See
Owner's Manual Vehicles with
anavigation system: the vehicle is close to aradio
telescop efacility and is therefore prohibite dfrom transmitting any
radar signals .The radar sensor system has switched off automat-
ically (Y page 433).
If DI STRONIC PLUS was enabled, it is no longe ravail able. Aw arn-
ing ton ealso sounds.
If Blin dSpotA ssist or Ac tiveBlind Spo tAssist was enabled, it is
no longe ravailable .The yellow 9indicator lamps also light up
in the exterior mirrors.
BA SP LUS (Brake Assist PLUS) and PRE-SAFE ®
Brak eare then also
no longe ravailable.
X Drive on.
Once yo uhave moved far enough awa yfrom th eradio telescope,
the above function sare avai lable again. 310
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Vehicles wit
hBecker ®
MA PPILOT :ifthe Becker ®
MA PPILOT is
not connected, the radar sensor syste misdeactivated automati-
cally.
BAS PLUS, DI STRONIC PLUS, Blind Spot Assis torActive Blind
Spo tAssist and PRE-SAFE ®
Brake ar enot available.
X Connect the Bec ker®
MAP PILOT; see the separate operating
inst ructions. Lane Keeping
Assist currently
unavailable See
Owner's Manual
Active Lane Keep‐
ing Assist cur‐
rently unavailable
See Owner's Manual Lane Keeping Assist or Active Lane Keeping Assist is deactivated
and temporarily inoperative. Possibl
ecauses:
R the windscreen is dirty in the camera' sfield of vision.
R visibility is impaired due to heavy rain, snow or fog.
R there are no lane markings for alonger period.
R the lane markings ar eworn ,dark or covered, e.g. by dirt or snow.
When the causes listed above no longer apply ,the displa ymes-
sage goes out.
Lan eKeeping Assist or Active Lan eKeeping Assist is operational
again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rollin gaway (Y page 181).
X Clean the windscreen. Lane Keeping
Assist inoperative
Active Lane Keep‐
in
gA ssist inoper‐ ative Lan
eKeeping Assist or Active Lan eKeeping Assist is faulty.
X Visit aqualified specialist workshop. Blin
dSpot Assist currently unavail‐
able See Owner's
Manual
Active Blind Spot
Assist currently
unavailable See
Owner's Manual Blind Spot Assist or Active Blind Spot Assist is temporarily inop-
erative.
Yo uh ave established the electrical connection between the trailer
and your vehicle.
X Press aon the steering wheel to confirm the display mes-
sage.
Blind Spot Assis torActive Blind Spo tAssist is deactivate dwhile
towing atrailer. Display messages
311On-boardcompu tera nd displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
Blind Spot Assis
torActive Blind Spo tAssist is temporarily inop-
erative. Possible causes:
R the sensors are dirty.
R the function is impaired due to heavy rain or snow.
R the radar senso rsystem is outside the operating temperature
range.
R the radar sensor syste mistemporarily inoperative, e.g. due to
electromagneti cradiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
The yellow 9indicator lamps also light up in the exterior mir-
rors.
When the causes listed above no longer apply ,the displa ymes-
sage goes out.
Blin dSpot Assist or Active Blin dSpot Assist is operational again.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rollin gaway (Y page 181).
X Clean the sensors (Y page 370).
X Restart the engine. Blin
dSpot Assist inoperative
Active Blind Spot
Assist inoperative Blind Spot Assist or Active Blind Spot Assist is faulty.
Th
ey ellow 9indicator lamps also light up in the exterior mir-
rors.
X Visit aqualified specialist workshop. Park Assist cancel‐
led The driver'
sdoor is open and the driver's seat belt has not been
fastened.
X Repeat the parkin gprocess wit hthe seat belt fastened and the
driver's door closed. You hav
einadvertently touched the multifunction steerin gwheel
while steerin gintervention was active.
X While steerin gintervention is active, make sure not to touch the
multifunction steerin gwheel. The vehicle has star
tedtos kid and ESP ®
has intervened.
X Use Active Parking Assist again later (Y page 219).312
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Pa
rk Assist inoper‐
ative Yo
uh avej ustc arrie doutalarg enumber of turning or parking
manoeuvres.
Active Parking Assist will become available again after approx-
imately ten minutes (Y page 219).
X Pull over and stop the vehicle safel yassoon as possible ,paying
attention to road and traffic conditions.
X Switch off and restart the engine.
If the display message continues to be displayed:
X Visit aqualified specialist workshop. PARKTRONI
Cisfaulty.
X Visit aqualified specialist workshop. Park Assist
switched off The vehicle is parked.
Awarning ton ealso sounds.
The display message disappear sautomatically. DI
STRONIC PLU Soff DISTRONIC PLUS ha
sbeen deactivate d(Ypage 198).
If it was deactivate dautomatically, awarning ton ealso sounds. DI
STRONIC PLUS available again DISTRONIC PLUS is operational agai
nafter having been tempo-
rarily unavailabl e. Youcan now reactivat eDISTRONIC PLUS
(Y page 198). DISTRONIC PLUS cur‐
rently unavailable
See Owner's Manual DISTRONIC PLUS is temporarily inoperative. Possible causes:
R thef unction is impaired due to heavy rain or snow.
R the sensors in the radiator trim and in the bumpers are dirty.
R the radar senso rsystem is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or othe rsources of electromagnetic radiation.
R the system is outside the operatin gtemperature range.
R the on-boar dvoltage is too low.
Aw arning ton ealso sounds.
When th ecauses listed above no longer apply, the display mes-
sage goes out.
DISTRONI Cisoperational again.
If th edisplay message does no tdisappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Secure the vehicle against rollin gaway (Y page 181).
X Clean the sensors in the radiator trim and in the bumpers
(Y page 370).
X Restar tthe engine. Displa
ymessages
313On-board compu tera nd displays Z

Displa
ymessages Possible causes/consequences and
M Solutions
DI
STRONIC PLUS inoperative DISTRONIC PLUS is faulty.
BAS PLUS and PRE-SAFE
®
Brake may also have failed.
Aw arning ton ealso sounds.
X Visi taq ualifieds pecialist workshop. DISTRONI
CPLUS inactive Yo
uh ave depressed the accelerator pedal. DISTRONIC PLUS is no
longer controlling the spee dofthe vehicle.
X Remove your foot from the accelerator pedal. DISTRONI
CPLUS --- km/h An activation conditio
nfor DI STRONIC PLUS is not fulfilled.
X Check the activation conditions for DISTRONIC PLUS
(Y page 198). DISTRONIC PLUS and
SPEEDTRONIC inop‐
erative DISTRONIC PLUS and SPEEDTRONIC are faulty.
Awarning tone
also sounds.
X Visit aqualified specialist workshop. Cruise control and
SPEEDTRONI
Cinop‐ erative SPEEDTRONIC and cruise control are malfunctioning.
X
Visit aqualified specialist workshop. Limit
---k
m/h Whil
edepressin gthe accelerator pedal beyon dthe pressur epoint
(kic kdown), SPEEDTRONIC can notb ea ctivated. Cruise control
---k
m/h Ac
ondition for activatin gcruis econtr olhas not been met.
You hav etriedtos toreas peed below 30 km/h, for example.
X If condition spermit ,drive faster than 30 km/h and store the
speed.
X Check th eactivation conditions for cruis econtr ol
(Y page 19 3). 12
0k m/h Maximu
mspeed exceeded Only fo
rcertain coun tries: the maximum speed has been excee-
ded.
In addition, the multifunction display shows 120k m/h! .
X Dri vemore slowly. 314
Display messagesOn-board computer an
ddisplays

Tyres
Display messages Possible caus
es/consequences andM Solutions
Tyre pressure
Check tyres Th
et yre pressure loss warning system ha sdetected asignif icant
loss in pressure.
Aw arning ton ealso sounds.
G WARNING
Wit htyrep ressures which are too low, there is arisk of the fol-
lowing hazards:
R they ma yburst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
manoeuvres .Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 181).
X If there is aflat tyre, inspect the tyres (Y page 378).
X Check the tyre pressures and, if necessary, correct the tyre
pressure.
X Restart the tyre pressure loss warnin gsystem when the tyre
pressure is correct (Y page 401).Check tyr
epres‐ sures then restart
Run Flat Indicator Th
et yre pressure los swarning system generated adispla ymes-
sage and has not been restarted since.
X Set the cor rect tyre pressure in all four tyres.
X Restart the tyre pressure los swarning system (Y page 401). Run Flat Indica
tor inoperative Th
et yre pressure los swarning system is faulty.
X Visit aqualified specialist workshop. Tyre pressu
re will
be displayed after
driving
afew minutes Th
et yre pressure monitor is measuring the tyre pressure.
X Driv eon.
The tyre pressures appear in the multifunction display after you
have bee ndriving for afew minutes. Tyre press. moni‐
to
ri noperative Th
et yre pressure monitor is faulty.
X Visit aqualified specialist workshop. Display messages
315On-board computer and displ ays Z

Displa
ymessages Possible causes/consequences and
M Solutions
Ty
re press. moni‐ tor inoperative No
wheel sensors Th
ew heels fitte ddonot have asuitable tyr epressure se nsor.T he
tyr ep ressure monito risd eactivated.
X Fit wheels with suitable tyr epressure sensors.
Th et yre pressure monitor is activated automatically after driv-
ing for afew minutes. Chec
ktyre(s) Th
et yre pressure in one or more tyres has droppe dsignificantly.
The wheel position is displayed in the multifunction display.
Aw arning ton ealso sounds.
G WARNING
Wit htyrep ressures which are too low, there is arisk of the fol-
lowing hazards:
R they ma yburst, especiall yasthe load and vehicle speed
increase.
R they ma ywear excessively and/or unevenly, which may greatly
impair tyr etraction.
R thed riving characteristics, as well as steering and braking, may
be greatl yimpaired.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steering or braking
manoeuvres .Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 181).
X If there is aflat tyre, inspect the tyres (Y page 378).
X Check the tyre pressure (Y page 402).
X If necessary, correct the tyre pressure. 316
Display messagesOn-board computer and displays

Displa
ymessages Possible causes/consequences and
M Solutions
Wa
rning tyre defect Th
et yrep ressur eino neormore tyre shas dropped suddenly. The
wheel position is displayed in the multifunc tion display.
G WARNING
If you drive with aflat tyre, there is arisk of the following hazards:
R Af lat tyre affect sthe ability to steer or brake the vehicle.
R You could lose con trol of the vehicle.
R Continue ddriving wit haflat tyre will cause excessive heat build-
up and possibly afire.
There is arisk of an accident.
X Stop the vehicle without makin gany sudden steerin gorbraking
manoeuvres .Pay attention to the traffic conditions as you do
so.
X Secure the vehicle against rolling away (Y page 181).
X If there is aflat tyre, inspect the tyres (Y page 378).Rectif
ytyre pres‐ sure Th
et yre pressure is too low in at leas tone of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity
(Y pag e402).
X If necessary, corre ctthe tyre pressure.
X Restart the tyre pressure monitor (Y page 403).Wheel sensor(s)
missing There is no signal from the tyre pressure sensor of one or several
wheels. The pressure of the affected tyre is not displayed in the
multifunction display.
X
Have the faulty tyre pressure sensor replaced at aqualified spe-
cialist workshop. Tyre press. moni‐
to
rc urrently unavailable Due to
asource of radio interference, no signal scan be received
from the wheel sensors. The tyre pressure monitor is temporarily
malfunc tioning.
X Drive on.
The tyr epressure monitor restarts automaticall yassoon as the
problem has been solved. Displa
ymessages
317On-board compu tera nd displays Z