2016 MERCEDES-BENZ GLS SUV steering

Display messages
Possible causes/consequences and
M
MSolutions Parking Pilot is unavailable or malfunctioning.
X Switch off the ignition and restart the engine.
If the Parking Pilot continues to be unavailable (the jsymbol does
not appear in the multifunction display):
X Consult a qualified specialist workshop. Parking Pilot ended
Parking Pilot ended The vehicle is parked. A warning tone also sounds.
The display message disappears automatically. Distance Pilot off
Distance Pilot off Distance Pilot DISTRONIC is deactivated.
If a warning tone also sounds, Distance Pilot has deactivated auto-
matically (Y page 184). Distance Pilot
Distance Pilot
available again available again Distance Pilot DISTRONIC is operational again after having been tem-
porarily unavailable. You can now reactivate Distance Pilot
DISTRONIC (Y page 184). Distance Pilot cur‐
Distance Pilot cur‐
rently unavailable rently unavailable
See Owner's Manual See Owner's Manual Distance Pilot DISTRONIC is temporarily inoperative.
Steering Pilot is also temporarily inoperative.
Possible causes:
R The radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio stations or
other sources of electromagnetic radiation.
R The system is outside the operating temperature range.
R The on-board voltage is too low.
A warning tone also sounds.
Once the causes listed above no longer apply, the display message
goes out.
Distance Pilot DISTRONIC is operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 168).
X Restart the engine. Distance Distance
Pilot
Pilotinop‐
inop‐
erative
erative Distance Pilot DISTRONIC is faulty.
The following may have also failed:
R Active Brake Assist
R Active Brake Assist with cross-traffic function
A warning tone also sounds.
X Consult a qualified specialist workshop. Distance Pilot pas‐ Distance Pilot pas‐
sive sive You have depressed the accelerator pedal. Distance Pilot DISTRONIC
is no longer controlling the speed of the vehicle.
X Remove your foot from the accelerator pedal. 280
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Distance Pilot
Distance Pilot
- - - km/h - - - km/h A condition for activating Distance Pilot DISTRONIC has not been met.
X Check the activation conditions for Distance Pilot DISTRONIC
(Y page 184). Distance Pilot and Distance Pilot and
Limiter inoperative Limiter inoperative Distance Pilot DISTRONIC and speed limiter are faulty.
This means that Steering Pilot is also unavailable.
A warning tone also sounds.
X Consult a qualified specialist workshop. Steering Pilot cur‐ Steering Pilot cur‐
rently unavailable rently unavailable
See Owner's Manual See Owner's Manual Steering Pilot is temporarily inoperative.
Possible causes:
R The windscreen is dirty in the camera's field of vision.
R Visibility is impaired due to heavy rain, snow or fog.
R There have been no lane markings for an extended period.
R The lane markings are worn, dark or covered, e.g. by dirt or snow.
Once the causes listed above no longer apply, the display message
goes out.
Steering Pilot is operational again.
If the display message does not disappear:
X Stop the vehicle, paying attention to road and traffic conditions.
X Secure the vehicle against rolling away (Y page 168).
X Clean the windscreen. Steering Steering
Pilot
Pilotinop‐
inop‐
erative
erative Steering Pilot is malfunctioning.
However, Distance Pilot DISTRONIC functions are still available.
A warning tone also sounds.
X Consult a qualified specialist workshop. Cruise control and Cruise control and
Limiter inoperative Limiter inoperative Cruise control and speed limiter are faulty.
X Consult a qualified specialist workshop. Limiter passive
Limiter passive If you depress the accelerator pedal beyond the pressure point (kick-
down), the limiter is switched to passive mode.
The speed limitation is not active.
X Drive slower than the stored speed and without kickdown.
X Call up the last speed stored again.
or X Set a new speed.
When the display message disappears, the speed limitation is active. Speed limiter Speed limiter
--- km/h --- km/h The speed limiter cannot be activated, since not all of the activation
conditions have been met.
X Check the activation conditions for the speed limiter (Y page 182). Display
messages
281On-board computer and displays Z

tyres
Display messages
Possible causes/consequences and
M
MSolutions Tyre
Tyre
pressure
pressure Check
Check
tyres
tyres The tyre pressure loss warning system has detected a significant loss
in pressure.
A warning tone also sounds.
Possible causes:
R you have changed the positions of the wheels and tyres or fitted new
wheels and tyres
R the tyre pressure in one or more tyres has dropped
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 168).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 346).
X Check the tyre pressures and, if necessary, correct the tyre pres-
sure.
X Restart the tyre pressure loss warning system when the tyre pres-
sure is correct (Y page 366). Check tyre pres‐ Check tyre pres‐
sures then restart sures then restart
Run Flat Indicator Run Flat Indicator The tyre pressure loss warning system generated a display message
and has not been restarted since.
X Set the correct tyre pressure in all four tyres.
X Restart the tyre pressure loss warning system (Y page 366).Run Flat Indicator Run Flat Indicator
inoperative inoperative The tyre pressure loss warning system is faulty.
X Consult a qualified specialist workshop. Rectify tyre pres‐
Rectify tyre pres‐
sure sure The tyre pressure is too low in at least one of the tyres, or the tyre
pressure difference between the wheels is too great.
X Check the tyre pressures at the next opportunity (Y page 367).
X If necessary, correct the tyre pressure.
X Restart the tyre pressure monitor (Y page 368). Display
messages
283On-board computer and displays Z

Display messages
Possible causes/consequences and
M
MSolutions Check tyre(s)
Check tyre(s) The tyre pressure in one or more tyres has dropped significantly. The
wheel position is displayed in the multifunction display.
A warning tone also sounds.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed
increase
R the tyres may wear excessively and/or unevenly, which may greatly
impair tyre traction
R the driving characteristics, as well as steering and braking, may be
greatly impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 168).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 346).
X Check the tyre pressure (Y page 367).
X If necessary, correct the tyre pressure. Warning tyre defect Warning tyre defect The tyre pressure in one or more tyres has dropped suddenly. The
wheel position is displayed in the multifunction display.
G WARNING
If you drive with a flat tyre, there is a risk of the following hazards: R a flat tyre affects the ability to steer or brake the vehicle
R you could lose control of the vehicle
R continued driving with a flat tyre will cause excessive heat build-up
and possibly a fire
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to the traffic conditions as you do so.
X Secure the vehicle against rolling away (Y page 168).
X Check the tyres and, if necessary, follow the instructions for a flat
tyre (Y page 346). Tyre Tyre
press.
press. monitor
monitor
currently unavaila‐
currently unavaila‐
ble ble No signals can be received from the tyre pressure sensors due to
strong RF interference. The tyre pressure monitor is temporarily mal-
functioning.
X Drive on.
The tyre pressure monitor restarts automatically as soon as the
cause has been rectified. 284
Display
messagesOn-board computer and displays

Display messages
Possible causes/consequences and
M
MSolutions Ð
Power steering mal‐ Power steering mal‐
function See Own‐ function See Own‐
er's Manual er's Manual The power steering assistance is faulty.
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 steering force
required.
If you are able to steer safely:
X Drive on carefully.
X Consult a qualified specialist workshop immediately.
If you are unable to steer safely:
X Do not drive on.
X Consult a qualified specialist workshop. Telephone Telephone
No
Noservice
service Your vehicle is outside the mobile phone network provider's trans-
mitter/receiver range.
X Wait until the mobile phone operational readiness symbol appears
in the multifunction display. ¥
Top up washer fluid Top up washer fluid The washer fluid level in the washer fluid reservoir has dropped below
the minimum.
X Top up the washer fluid (Y page 336).Wiper malfunction‐
Wiper malfunction‐
ing ing The windscreen wipers are defective.
X Consult a qualified specialist workshop. Hazard warning
Hazard warning
lamps malfunction‐ lamps malfunction‐
ing ing The hazard warning lamps are faulty.
X Consult a qualified specialist workshop. Key
Display messages
Possible causes/consequences and
M
MSolutions Â
Key Key
does
does not
notbelong
belong
to vehicle
to vehicle You have put the wrong key in the ignition lock.
X Use the correct key. Â
Replace key Replace key The key needs to be replaced.
X Consult a qualified specialist workshop. Â
Change Change
key
keybatteries
batteries The key battery is discharged.
X Replace the battery (Y page 84). Display
messages
289On-board computer and displays Z

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
M Solutions !
N
The yellow ABS warning lamp lights up while the engine is running.
ABS is temporarily unavailable.
Other driving and driving safety systems may also be malfunctioning.
In addition, the ÷andå warning lamps may light up in the instrument
cluster.
ATTENTION ASSIST is deactivated.
Possible causes:
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 front and rear wheels could therefore lock if you brake hard, for exam-
ple.
The steerability and braking characteristics may be severely affected. The braking
distance may increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is a risk of an accident.
X Carefully drive on a suitable stretch of road, making slight steering movements
at a speed above 20 km/h.
The functions mentioned above are available again when the warning lamp goes
out.
If the warning lamp is still on: X Observe the additional display messages in the multifunction display.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. 294
Warning and indicator lamps in the instrument clusterOn-board computer and displays

Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions ֌
N
The yellow ESP ®
and ESP ®
OFF warning lamps are lit while the engine is running.
ESP ®
, BAS, Active Brake Assist, Active Brake Assist with Cross-Traffic Assist,
ESP ®
trailer stabilisation, PRE ‑SAFE®
, PRE‑SAFE ®
PLUS, the HOLD function, hill
start assist, Crosswind Assist, adaptive brake lights, STEER CONTROL, Active Lane
Keeping Assist and Active Blind Spot Assist are not available due to a malfunction.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance may thus increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Observe the additional display messages in the multifunction display.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. ֌
N
The yellow ESP ®
and ESP ®
OFF warning lamps are lit while the engine is running.
ESP ®
, BAS, Active Brake Assist, Active Brake Assist with Cross-Traffic Assist,
ESP ®
trailer stabilisation, PRE ‑SAFE®
, PRE‑SAFE ®
PLUS, the HOLD function, hill
start assist, Crosswind Assist, adaptive brake lights, STEER CONTROL, Active Lane
Keeping Assist and Active Blind Spot Assist are not available due to a malfunction.
ATTENTION ASSIST is deactivated.
Self-diagnosis is not yet complete.
G WARNING
The brake system continues to function normally, but without the functions listed above.
The braking distance may thus increase in an emergency braking situation.
If ESP ®
is not operational, ESP ®
is unable to stabilise the vehicle.
There is an increased danger of skidding and risk of an accident.
X Carefully drive on a suitable stretch of road, making slight steering movements
at a speed above 20 km/h.
The functions mentioned above are available again when the warning lamp goes out.
If the warning lamp is still on: X Observe the additional display messages in the multifunction display.
X Drive on carefully.
X Consult a qualified specialist workshop immediately. Warning and indicator lamps in the instrument cluster
297On-board computer and displays Z

Tyres
Warning/
indicator
lamp
N N
Signal type
Possible causes/consequences and M
MSolutions h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction) is
lit.
The tyre pressure monitor has detected a loss of pressure in at least one of the
tyres.
G WARNING
Underinflated tyres pose the following risks:
R the tyres may burst, especially as the load and vehicle speed increase
R the tyres may wear excessively and/or unevenly, which may greatly impair tyre
traction
R the driving characteristics, as well as steering and braking, may be greatly
impaired
There is a risk of an accident.
X Stop the vehicle without making any sudden steering or braking manoeuvres.
Pay attention to the traffic conditions as you do so.
X Safeguard the vehicle against rolling away (Y page 168).
X Observe the additional display messages in the multifunction display.
X Check the tyres and, if necessary, follow the instructions for a flat tyre
(Y page 346).
X Check the tyre pressure (Y page 367).
X If necessary, correct the tyre pressure. h
N
The yellow tyre pressure monitor warning lamp (pressure loss/malfunction)
flashes for approximately one minute and then remains lit.
The tyre pressure monitor is faulty.
G WARNING
The system is possibly unable to detect or register low tyre pressure.
There is a risk of an accident.
X Observe the additional display messages in the multifunction display.
X Consult a qualified specialist workshop immediately. 302
Warning and indicator lamps in the instrument clusterOn-board computer and displays