2016 MERCEDES-BENZ GL warning

Tires Display messages
Possible causes/consequences and P Solutions
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: R
you have changed the positions of the wheels and tires or instal-
led new wheels and tires. R
the tire pressure in one or more tires is not correct.
G WARNING
Tire pressures that are too low pose the following hazards: R
they may burst, especially as the load and vehicle speed
increase. R
they may wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay attention to the traffic conditions as you do so. X
Secure the vehicle against rolling away ( Y
page 189).X
Check the tires and, if necessary, follow the instructions for a
flat tire ( Y
page 387). X
Check the tire pressures and, if necessary, correct the tire pres-
sure. X
Restart the tire pressure loss warning system when the tire
pressure is correct ( Y
page 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. X
Set the correct tire pressure in all four tires. X
Restart the tire pressure loss warning system ( Y
page 412).
Run Flat Indicator
Inoperative The tire pressure loss warning system is faulty. X
Visit 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. X
Check the tire pressures at the next opportunity ( Y
page 412).X
If necessary, correct the tire pressure. X
Restart the tire pressure monitor ( Y
page 415).318
Displa y messages
On-board computer and displays

Safety systems Problem
Possible causes/consequences and P Solutions
' (USA only)
The red brake system
warning lamp comes on
while the engine is run-
ning.
A warning tone also
sounds. G WARNING
The brake boosting effect is malfunctioning and the braking char-
acteristics 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 189).X
Consult a qualified specialist workshop. X
Observe the additional display messages in the multifunction
display.
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 189).X
Do not add brake fluid. Adding more will not remedy the mal-
function. X
Consult a qualified specialist workshop. X
Observe the additional display messages in the multifunction
display.326
Warning and indicator lamps in the instrument cluster
On-board computer and displays

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running. ABS (Anti-lock Braking System) is deactivated due to a malfunc-
tion. Therefore, BAS (Brake Assist), BAS PLUS, COLLISION PRE-
VENTION ASSIST, ESP ®
(Electronic Stability Program), ESP ®
trailer
stabilization, PRE ‑ SAFE ®
, PRE ‑ SAFE ®
Brake, HOLD function, hill
start assist, Crosswind Assist, STEER CONTROL, Active Lane
Keeping Assist and Active Blind Spot Assist are also deactivated.
In addition, the

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running. ABS is temporarily unavailable. Therefore, BAS, BAS PLUS, COL-
LISION PREVENTION ASSIST, ESP ®
, ESP ®
trailer stabilization, EBD
(electronic brake force distribution), PRE ‑ SAFE ®
,
PRE ‑ SAFE ®
Brake, the HOLD function, hill start assist, Crosswind
Assist, STEER CONTROL, Active Lane Keeping Assist and Active
Blind Spot Assist, for example, are also deactivated.
In addition, the

Problem
Possible causes/consequences and P Solutions
%
The yellow ABS warning
lamp is lit while the
engine is running.
A warning tone also
sounds. EBD is not available due to a malfunction. Therefore ABS, BAS, BAS
PLUS, ESP ®
, ESP ®
trailer stabilization, PRE ‑ SAFE ®
,
PRE ‑ SAFE ®
Brake, COLLISION PREVENTION ASSIST, HOLD func-
tion, hill start assist, Crosswind Assist, STEER CONTROL, Active
Lane Keeping Assist and Active Blind Spot Assist are also unavail-
able.
In addition, the

Problem
Possible causes/consequences and P Solutions
I (USA only)
The red electric parking
brake indicator lamp
flashes or lights up
and/or
$
the yellow warning
lamp for the electric
parking brake lights up. X
Observe the additional display messages in the multifunction
display.
u
The red restraint sys-
tem warning lamp is lit
while the engine is run-
ning. The restraint system is faulty.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig-
gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury. X
Observe the additional display messages in the multifunction
display. X
Drive on carefully. X
Have the restraint system checked immediately at a qualified
specialist workshop.
For further information about the restraint system, see
( Y
page 44).Warning and indicator lamps in the instrument cluster 333
On-board computer and displays Z

Problem
Possible causes/consequences and P SolutionsX
Observe the additional display messages in the multifunction
display. X
Pull over and stop the vehicle safely and switch off the engine,
paying attention to road and traffic conditions. X
Secure the vehicle against rolling away ( Y
page 189).X
Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down. X
Check the coolant level and add coolant, observing the warning
notes ( Y
page 373). X
If you have to add coolant frequently, have the engine cooling
system checked. X
Make sure that the air supply to the engine radiator is not
blocked, e.g. by snow, slush or ice. X
At coolant temperatures below 248 ‡ (120 †), drive to the
nearest qualified specialist workshop. X
Avoid subjecting the engine to heavy loads, e.g. driving in moun-
tainous terrain, and stop-and-go traffic.
Driving systems
Problem
Possible causes/consequences and P Solutions

Tires Problem
Possible causes/consequences and P Solutions
w
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) is lit. The tire pressure monitor has detected a loss of pressure in at
least one of the tires.
G WARNING
With tire pressures which are too low, there is a risk of the fol-
lowing hazards: R
they may burst, especially as the load and vehicle speed
increase. R
they may wear excessively and/or unevenly, which may greatly
impair tire 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
maneuvers. Pay attention to the traffic conditions as you do so. X
Secure the vehicle against rolling away ( Y
page 189).X
Observe the additional display messages in the multifunction
display. X
Check the tires and, if necessary, follow the instructions for a
flat tire ( Y
page 387). X
Check the tire pressure ( Y
page 412).X
If necessary, correct the tire pressure.
w
The yellow tire pressure
monitor warning lamp
(pressure loss/
malfunction) flashes for
approximately one
minute and then
remains lit. The tire pressure monitor is faulty.
G WARNING
The system is possibly unable to recognize or register low tire
pressure.
There is a risk of an accident. X
Observe the additional display messages in the multifunction
display. X
Visit a qualified specialist workshop.338
Warning and indicator lamps in the instrument cluster
On-board computer and displays