display MERCEDES-BENZ GLS SUV 2019 Owners Manual

Display messages
Possible causes/consequences and M
MSolutions #
Order a new digital vehicle keyst icke r from a Mercedes-Benz Service Centre or at http://www.mercedes-
benz.com/connect.
Á
Replace key *T
hekey needs tobe replaced. #
Consult a qualified specialist workshop.
Á Change key batteries *T
hekey bat tery is dischar ged. #
Replace the battery (/ page84).
Á Key not detected (white
display message) *T
hekey is cur rently und etected. #
Change the location of theke y in theve hicle. #
Ifth eke y is still not recognised, place it in the slot forst arting with theke y (/ page192). Displ
aymessa ges and warning/indicator lamps 655

Display messages
Possible causes/consequences and M
MSolutions
Á Key not detected (red dis‐
play message) *T
hekey cannot be de tected and may no longer be in theve hicle.
The key is no lon ger in theve hicle and you swit choff the engine:
R You can no lon gerst art the engine.
R You cannot centrally lock theve hicle. #
Ensure that theke y is in theve hicle.
If th eke y de tection function has a malfunction due toast ro ng radio signal source: #
Stop theve hicle as soon as possible in accordance with the tra ffic conditions. #
Place theke y in the slot forst arting the engine with theke y (/ page192).
Á Place the key in the
marked space See Owner's
Manual *T
hekey de tection function is malfunctioning. #
Change the location of theke y in theve hicle. #
Place theke y in the slot forst arting the engine with theke y (/ page192). 656
Displaymessa ges and warning/indicator lamps

Ve
hicle Display messages
Possible causes/consequences and M
MSolutions
ï Trailer coupling extending… *E
xtending or retracting the ball nec k.
Do not attem pttospeed up, slow down or initiate there tracting or extending process using your hand, foot or other
aids. During there tracting or extending process, do not couple a traile r.
When the ball neck has reached an operational position, the display message disappears.
ï Check trailer hitch lock
(white display message) *T
he trailer tow hit chwill not be operational when you drive with a trailer. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions, and switch off the engine. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure (/ page312). #
When the display message disappears, couple up the trailer and drive on. &
WARNING Risk of an accident if the ball neck is not loc ked
If th e ball neck is not in the loc ked position, the trailer may come loose. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Uncouple the trailer and secure it against rolling away. #
Initiate a new swivelling procedure and do not re-couple the trailer until the display message disappears. If
th e display message does not disappear, the trailer tow hit chis defective and the ball neck is not loc ked. Display messages and
warning/indicator lamps 657

Display messages
Possible causes/consequences and M
MSolutions #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. #
Consult a qualified specialist workshop.
The trailer tow hit chwill not be operational when theve hicle is at a standstill. #
Uncouple the coupled trailer and secure it against rolling away. #
Initiate a new swivelling procedure (/ page312).
If th e display message does not disappear, the trailer tow hit chis defective and the ball neck is not loc ked. #
Do not couple up the trailer. Drive on without the trailer. No tethere duced ground clearance due tothe
unlo cked ball nec k. #
Consult a qualified specialist workshop.
ï Operation only possible in
transmission position P *
Yo u ha veattem ptedto displace the ball neck and the transmission is in position k,iorh. #
Depress the brake pedal. #
Shift the transmission toposition j. 658
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
Ù Steering malfunction
Increased physical effort
See Owner's Manual *T
he po wer assi stance forth esteering is malfunctioning. &
WARNING Risk of an accident due toaltered steering characteristics
If th e po wer assi stance of thesteering fails partially or comple tely, you will need touse more forc eto steer. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y. #
If safe steering is possible, drive on carefully. #
Visit or consult a qualified specialist workshop immediatel y.
Ù
Steering malfunction Stop
immediately See Owner's
Manual *T
hesteering is malfunctioning. Steering capability is considerably impaired. &
WARNING Risk of accident if steering capability is impaired
If th esteering does not function as intended, theve hicle's operating saf ety is jeopardised. #
Pull over and stop theve hicle safely as soon as possible, paying attention toroad and traf fic conditions.
Do not continue driving under any circums tances. #
Consult a qualified specialist workshop. #
Pull over and stop theve hicle safely as soon as possible in accordance with the tra ffic conditions. Do not con‐
tinue driving under any circums tances. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 659

Display messages
Possible causes/consequences and M
MSolutions
? *T
he bonnet is open. &
WARNING Risk of accident due todriving with the engine bonn etunlo cked
An unloc ked engine bonn etmay open up when theve hicle is in motion and block your vie w. #
Never unlock the engine bonn etwhen driving. #
Before every trip, ensure that the engine bonn etis loc ked. #
Stop theve hicle immediately, paying attention toroad and traf fic conditions. #
Close the bonn et.
A *T
hetailgate is open. &
DANG ER Risk of exhaust gas poisoning
Combustion engines emit poisonous exhaust gases such as carbon monoxide. Exhaust gases can enter the
ve hicle interior if theta ilgate is open when the engine is running, especial lyifth eve hicle is in motion. #
Alw ays switch off the engine before opening theta ilgate. #
Never drive with theta ilgate open. #
Close theta ilgate.
Anti-theft alarm system
Malfunction *T
he anti-theft alarm sy stem is malfunctioning. #
Consult a qualified specialist workshop. 660
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
¥ Top up washer fluid *T
hewasher fluid le vel in thewa sher fluid reser voir has dropped below the minimum. #
Top up thewa sher fluid (/ page 537). Climate cont
rol Display messages
Possible causes/consequences and M
MSolutions
& inoperative See Owner's
Man. *T
hestationary heater is temp orarily malfunctioning. #
When theve hicle is on a le vel sur face and the engine has cooled down, make up tofour attem ptsto switch on
th est ationary heater, waiting se veral minutes between each attem pt. #
Ifth est ationary heater does not swit chon, consult a qualified specialist workshop.
&
inoperative Battery low *T
he on-board electrical sy stem voltage is too lo w.
The stationary heater has swit ched itself off. #
Drive for an extended pe riod until the battery has reached a suf ficient charge leve l again. Display messages and
warning/indicator lamps 661

Display messages
Possible causes/consequences and M
MSolutions
& inoperative Refuel vehicle *T
here is too little fuel in the fuel tank. The stationary heater cannot be swit ched on. #
Refuel theve hicle. Lights
Display messages
Possible causes/consequences and M
MSolutions
b Left dipped beam (Example)*T
he cor responding light source is defective. #
Drive on carefully. #
Consult a qualified specialist workshop immediatel y.
% LED light bulbs: the display message forth e cor responding lamp appears only when allthe light-emitting diodes
in the lamp ha vefailed.
b Malfunction See Owner's
Manual *T
heexterior lighting is faulty. #
Consult a qualified specialist workshop.
Ve hicles with a trailer hitch: a fuse may haveblown. #
Pull over and stop theve hicle, paying attention toroad and traf fic conditions. #
Check the fuses and replace them if necessary (/ page 567).662
Display messages and warning/indicator lamps

Display messages
Possible causes/consequences and M
MSolutions
b Automatic driving lights
inoperative *T
he light sensor is faulty. #
Consult a qualified specialist workshop.
b Switch on headlamps *Y
ou are driving without lo w-beam headlamps. #
Turn the light switch totheL orà position.
b
Switch off lights *Y
ou are leaving theve hicle and the lights are still switched on. #
Turn the light switch totheà position.
b Hazard warning lamps mal-
functioning *T
he hazard warning lamp switch is faulty. #
Consult a qualified specialist workshop. Display messages and
warning/indicator lamps 663

Display messages
Possible causes/consequences and M
MSolutions
b Intelligent Light System
inoperative *T
he Intelligent Light Sy stem is faulty. The lighting sy stem continues tofunction properly without the functions of
th e Intelligent Light Sy stem. #
Consult a qualified specialist workshop.
b Active Light System inoper-
ative *T
he active headlamp s arefaulty. #
Consult a qualified specialist workshop.
Adaptive Highbeam Assist
Plus currently unavailable
See Owner's Manual *A
daptive Highbeam Assist Plus is temp orarily una vailable.
The sy stem limits ha vebeen reached (/ page162). #
Drive on.
Once the cause of the problem is no longer present, the sy stem will be available again. The Adaptive Highbeam
Assist Plus available again display message appears.
Adaptive Highbeam Assist
Plus inoperative *A
daptive Highbeam Assist Plus is faulty. #
Consult a qualified specialist workshop. 664
Display messages and warning/indicator lamps