2007 MERCEDES-BENZ GL450 light

441 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
vThe yellow ABS/ESP® warning
lamp comes on while driving.The ESP® has been switched off.
Risk of accident!
When the ESP
® is switched off it will not sta-
bilize the vehicle if the system recognizes
that the vehicle starts to skid or that a wheel
is spinning.
Switch the ESP® back on (page 108).
Exceptions: (
page 107).
If leaving the ESP® switched off, adapt
your speed and driving to the prevailing
road and weather conditions.
If the ESP
® cannot be switched on:
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.
The ESP® is not operational due to a malfunc-
tion.
Risk of accident!Observe additional messages in the
multifunction display.
Continue driving with added caution.
Adapt your speed and driving to the pre-
vailing road and weather conditions.
Have the system checked at an autho-
rized Mercedes-Benz Light Truck
Center as soon as possible.

445 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
lThe red distance warning lamp
comes on while driving and you
hear a warning chime sound.You are gaining too rapidly on the vehicle ahead
of you.Apply the brakes immediately.
Carefully observe the traffic
situation. You may need to brake
or maneuver to avoid hitting an
obstacle.
The Distronic* has recognized a stationary ob-
stacle on your probable line of travel.
1The red SRS indicator lamp comes
on while driving.There is a malfunction in the restraint systems.
The air bags or emergency tensioning device
(ETDs) could deploy unexpectedly or fail to
deploy unexpectedly in an accident.Drive with added caution to the
nearest authorized
Mercedes-Benz Light Truck
Center.
Warning!G
In the event a malfunction of the SRS is indi-
cated as outlined above, the SRS may not be
operational. For your safety, we strongly
recommend that you visit an authorized
Mercedes-Benz Light Truck Center immedi-
ately to have the system checked, otherwise
the SRS may not be activated when needed
in an accident, which could result in serious
or fatal injury, or it might deploy unexpect-
edly and unnecessarily which could result in
an accident and/or injury to you or to
others.

446 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
HUSA only:
Combination low tire pres-
sure/TPMS malfunction telltale
for the TPMS illuminates contin-
uously.
Canada only:
Low tire pressure telltale for the
Advanced TPMS* illuminates
continuously.The TPMS (USA only) or Advanced TPMS*
(Canada only) detects a loss of pressure in
at least one tire.Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers. Observe the traffic situation
around you.
Read and observe messages in the
multifunction display.
If the tire inflation pressure in the respec-
tive tire(s) has (have) been corrected, the
combination low tire pressure/TPMS mal-
function telltale goes out after few minutes
driving.
HUSA only:
Combination low tire pres-
sure/TPMS malfunction telltale
for the TPMS flashes
60 seconds and then stays
illuminated.There is a malfunction in the TPMS.Read and observe messages in the
multifunction display.
Have the TPMS checked by an
authorized Mercedes-Benz Light Truck
Center.
After the malfunction has been remedied
the combination low tire pressure/TPMS
malfunction telltale goes out after few
minutes driving.

448 Practical hints
What to do if …
Lamp in center console
ProblemPossible cause/consequenceSuggested solution
Vehicles with
OCS* only
59
The front passenger
front air bag off indica-
tor lamp illuminates
and remains illuminat-
ed with the weight of a
typical adult or some-
one larger than a small
individual on the front
passenger seat.The system is malfunctioning.Have the system checked as soon as
possible by an authorized
Mercedes-Benz Light Truck Center.
Also read and observe any messages
in the multifunction display and follow
corrective steps (
page 463).
Warning!G
If the59indicator lamp
illuminates and remains illuminated with the
weight of a typical adult or someone larger
than a small individual on the front passen-
ger seat, do not have any passenger use the
front passenger seat until the system has
been repaired.

449 Practical hints
What to do if …
ProblemPossible
cause/consequenceSuggested solution
Vehicles with
OCS* only
59
The front passenger
front air bag off indica-
tor lamp does not illu-
minate and/or does
not remain illuminated
with the weight of a
typical 12-month-old
child in a standard
child restraint or less
on the front passenger
seat.The system is malfunction-
ing.Make sure there is nothing between seat cushion and
child seat and check installation of the child seat.
Make sure no objects applying supplemental weight
onto the seat are present.
Make sure no objects which apply forces to the seat
are present (e.g. objects such as books, briefcases
etc. lodged behind or around the seat, head restraints
pushing against roof etc.). The system may recognize
such forces as supplemental weight.
If the front passenger front air bag off indicator lamp
remains out, have the system checked as soon as pos-
sible by an authorized Mercedes-Benz Light Truck
Center. Do not transport a child on the front passen-
ger seat until the system has been repaired.
Also note any messages in the multifunction display
and follow corrective steps (
page 463).
Warning!G
If the59indicator lamp does
not illuminate or remains out with the
weight of a typical 12-month-old child in a
standard child restraint or less on the front
passenger seat, do not transport a child onthe front passenger seat until the system
has been repaired.

450 Practical hints
What to do if …
ProblemPossible cause/consequenceSuggested solution
Vehicles with
BabySmartTM air
bag deactivation
system, Canada
only
59
The front passenger
front air bag off indica-
tor lamp illuminates
and remains
illuminated
(
page 87).
A BabySmartTM child seat is installed on
the passenger seat. Therefore the front
passenger front air bag is switched off.
The system is malfunctioning when there
is no BabySmartTM child seat installed on
the passenger seat.
Have the system checked at an
authorized Mercedes-Benz Light Truck
Center as soon as possible.
The front passenger
front air bag off indica-
tor lamp does not illu-
minate or does not
remain illuminated with
a BabySmart
TM child
seat properly installed
on the passenger seat.
The system is malfunctioning.Make sure there is nothing between
seat cushion and child seat.
Check installation of the child seat
(
page 93).
If the front passenger front air bag off indi-
cator lamp remains out:
Have the system checked at an autho-
rized Mercedes-Benz Center as soon as
possible.
Do not use the BabySmart
TM restraint to
transport children on the front passenger
seat until the system has been repaired.

451 Practical hints
What to do if …
Vehicle status messages in the
multifunction display
Warning and malfunction messages
appear in the multifunction display located
in the instrument cluster.
Certain warning and malfunction messag-
es are accompanied by an audible signal.
Address these messages accordingly and
follow the additional instructions given in
this Operator’s Manual.
Selecting the vehicle status message
memory menu in the control system
(
page 169) displays both cleared and
uncleared messages.
High-priority messages appear in the
multifunction display in red color.Certain messages of high priority cannot
be cleared from the multifunction display
using the reset button (
page 155) or
buttonj,k,ÿ, orè on the
multifunction steering wheel.
Other messages of high priority and mes-
sages of less immediate priority can be
cleared from the multifunction display
using the reset button (
page 155) or
buttonj,k,ÿ, orè on the
multifunction steering wheel. They are
then stored in the vehicle status message
memory (
page 169). Remember that
clearing a message will only make the mes-
sage disappear. Clearing a message will
not correct the condition that caused the
message to appear.
Warning!G
All categories of messages contain
important information which should be
taken note of and, where a malfunction is
indicated, addressed as soon as possible at
an authorized Mercedes-Benz Light Truck
Center.
Failure to repair condition noted may cause
damage not covered by the Mercedes-Benz
Limited Warranty, or result in property dam-
age or personal injury.

452 Practical hints
What to do if …
On the pages that follow, you will find a
compilation of the most important warning
and malfunction messages that may
appear in the multifunction display.
For your convenience the messages are
divided into two sections:

Text messages (page 453)

Symbol messages (page 469)
Warning!G
No messages will be displayed if either the
instrument cluster or the multifunction
display is inoperative.
As a result, you will not be able to see infor-
mation about your driving conditions, such
as speed or outside temperature, warn-
ing/indicator lamps, malfunction/warning
messages or the failure of any systems.
Driving characteristics may be impaired.
If you must continue to drive, please do so
with added caution. Visit an authorized
Mercedes-Benz Light Truck Center as soon
as possible.
iSwitching on the ignition causes all
instrument cluster lamps (except high beam
headlamp indicator lamp, and turn signal
indicator lamps unless activated) as well as the
multifunction display to come on. Make sure the
lamps and multifunction display are in working
order before starting your journey.