2020 MERCEDES-BENZ GLA SUV brake

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
T
!
÷
inoperative See Owner's
Manual *
EBD, ABS and ESP ®
are malfunctioning.
Other driving systems and driving saf ety systems (e.g. BAS) may also be malfunctioning. &
W WARNING
ARNING Risk of skidding if EBD, ABS and ESP ®
are malfunctioning
The wheels may block during braking and ESP ®
does not per form any vehicle stabilization.
The steerability and braking characteristics are heavily impaired and the braking distance may increase. In addi-
tion, other driving saf ety sy stems are swit ched o.. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. Active Brake Assist Func-
tions currently limited See
Owner's Manual *V
Vehicles wit ehicles wit h t
h the Dr
he Dr iving Assist
iving Assist ance P
ance Pack
ackag
age:
e: Ac tive Brake Assist with cross-t ra1c function, Evasive Steering Assist or
PRE‑SAFE ®
PLUS are temp orarily una vailable or only partially available.
V
V ehicles wit
ehicles wit hout t
hout t he Dr
he Driving Assist
iving Assist ance P
ance Pack
ack ag
age:
e: Ac tive Brake Assist is temp orarily una vailable. #
Drive on
As soon as the ambient conditions are within the system limits, the system will become available again.
or #
Ifth e display message does not disappear, stop theve hicle in accordance with the tra1c conditions and restart
th eve hicle. Displ
aymessages and warning/indicator lamps
471 471

Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
Active Brake Assist Func-
tions limited See Owner's
Manual *F
orvehicles with the Driving Assistance Package, thefo llowing functions may be temp orarily una vailable or only parti-
ally available:
R Active Brake Assist with cross-t ra1c function
R Evasive Steering Assist
R PRE‑SAFE ®
PLUS
V
V ehicles wit ehicles wit hout t
hout t he Dr
he Driving Assist
iving Assist ance P
ance Pack
ack ag
age:
e: Ac tive Brake Assist is temp orarily una vailable or only partially availa-
ble. #
Drive on
or #
Stop theve hicle in accordance with the tra1c conditions and restart theve hicle. #
Ifth e display message does not disappear: consult a quali/ed specialist workshop. Mer
Mer
cedes-Benz emerg
cedes-Benz emerg ency call syst
ency call syst em
em Displa
Displa
y messag
y messag es P
es Possible causes/conseq
ossible causes/conseq uences and
uences andM
MSolutions
Solutions
G
Inoperative *T
he Mercedes-Benz emer gency call system is malfunctioning. The Mercedes me connect system is also malfunction-
ing. #
Consult a quali/ed specialis two rkshop. 472
472
Displ
aymessages and warning/indicator lamps

W
W
ar
ar ning and indicat
ning and indicat or lam
or lamps
ps Ov
Ov
er
ervie
vie w of indicat
w of indicat or and w
or and war
arning lam
ning lam ps
ps Some systems will per
form a self-test when the
ve hicle is switched on. Some indicator and warn-
ing lamps may brie0y light up or 0ash. This beha v-
iour is non-critical. These indicator and warning
lamps indicate a malfunction only if they light up
or 0as haTer theve hicle has been star ted or dur-
ing a journe y.
S
S t
tandar
andar d ins
d instr
trument displ ay
ument display W
W
idescr
idescr een coc
een coc kpit ins
kpit instrtrument display
ument display Depending on
the display setting, the positions of
th e indicator lamps on the inst rument display may
di.er from theex ample shown.
Indicat
Indicat or and w
or and w ar
arning lam
ning lam ps:
ps:
6 Restraint system (/ page 486)
ü Seat belt (/ page 486)
_ Reduced po wer (/ page 488)
Ú System error (/ page 488)
# Electricalfault (/ page 488)
ï Trailer hitch (/ page 489)
Ù Powe r steering (/ page 489) ÿ
V
V ehicles wit
ehicles wit h a widescr
h a widescr een coc
een cockpit
kpit:
:
coolant temp erature (/ page 490)
; Engine diagnostics (/ page 490)
% V
Vehicles wit
ehicles wit h a diesel engine:
h a diesel engine: preglow
# Electricalfault (/ page 490)
æ Reser vefuel wi thfuel /ller 0ap loca-
tion indicator (/ page 490)
! Electric parking brake (red)
(/page 494)
! Electric parking brake (yellow)
(/page 494)
J Brakes (yellow) (/ page 494)
J Brakes (red) (/ page 494)
L Distancewarning (/ page 496)
Ó Active Brake Assist (/ page 496)
ê Active Brake Assist (/ page 496)
! ABS (/page 497)
÷ ESP®
(/ page 497)
å ESP®
OFF (/ page 497) Display messages and
warning/indicator lamps
485 485

Br
Br
ak
ak es
es W
W
ar
ar ning/indicat
ning/indicat or lamp P
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
!
Electric parking brake indi-
cator lamp (red)
!
The electric parking brake
(yellow) indicator lamp *T
he red electric parking brake indicator lamp 0ashes or is lit.
The yellow electric parking brake indicator lamp is also lit in theev ent of a malfunction. #
Notethe messages on the instrument displa y.
J
Brake system warning lamp
(yellow) *T
he yellow brake warning lamp is lit while theve hicle is running. &
W WARNI NG
ARNI NGRisk of an accident due toa brake system malfunction
If th e brake system is malfunctioning, braking characteristics may be impaired. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. #
Adjust your speed and drive on carefull y,leaving a suitable distance totheve hicle in front. #
Ifth e inst rument display sho wsa displ aymessage, obser veit. 494
494
Display message
s andwarning/indicator lamps

W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions #
Consult a quali/ed specialist workshop.
J
Brake system warning lamp
(red) *T
he red brake warning lamp is lit while theve hicle is running.
Po ssible causes:
R The brake forc e boosting is malfunctioning and the braking characteristics may be a.ected.
R There is insu1cient brake 0uid in the brake 0uid reser voir. #
Notethe messages on the instrument displa y. &
W
W ARNI NG
ARNI NGRisk of accident and injury if brake forc e boosting is malfunctioning
If brake forc e boosting is malfunctioning, increased brake pedal forc e may be necessary for braking. The braking
ch aracteristics may be impaired. The braking dis tance can increase in eme rgency braking situations. #
Stop in a safe location immediatel y.Do not continue driving! #
Consult a quali/ed specialist workshop. &
W
W ARNING
ARNING Risk of an accident due tolow brake 0uid le vel
If th e brake 0uid le vel is too lo w,the braking e.ect and the braking characteristics may be impaired. #
Stop theve hicle as soon as possible, paying attention toroad and tra1c conditions. Do not continue driving. #
Consult a quali/ed specialist workshop. #
Do not top up the brake 0uid. Display messages and
warning/indicator lamps
495
495

Dr
Dr
iving syst
iving syst ems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
L
Wa rning lamp for distance
wa rning function *T
he red distance warning lamp lights up while theve hicle is in motion.
The dis tance totheve hicle in front is too small forth e speed selected.
If th ere is an additional warning tone, you are approaching an obstacle at too high a speed. #
Be prepared tobrake immediatel y. #
Increase the distance.
Fu nction of Active Brake Assist (/ page 248).
Ó Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
Due todirty sensors or a malfunction, the system is not available or thera nge of functions is restric ted. #
Notethe messages on the instrument displa y.
ê
Ac tive Brake Assist warning
lamp *T
heActive Brake Assist warning lamp is on.
The system is switched o. or thera nge of functions has been automatically restric ted.
This may be the case if the driver is not wearing a seat belt or ano ther driving system has been activated. #
Obser vethe no tes on Active Brake Assist (/ page 248).496
496
Display messages and
warning/indicator lamps

Dr
Dr
iving safe
iving safe ty syst
ty systems
ems W
W
ar
ar ning/indicat
ning/indicat or lampP
or lam pP ossible causes/conseq
ossible causes/consequences and uences andM
MSolutions
Solutions
!
ABS warning lamp *T
he yellow ABS warning lamp is lit while theve hicle is running.
ABS is malfunctioning.
If an additional warning tone sounds, EBD is malfunctioning.
Other driving systems and driving sa fety systems may also be malfunctioning. #
Notethe messages on the instrument displa y. &
W WARNI NG
ARNI NGThere is a risk of skidding if EBD or ABS is malfunctioning
The wheels may lock during braking.
The steerability and braking characteristics are heavily impaired and the braking distance may increase. In addition,
ot her driving saf ety sy stems are swit ched o.. #
Drive on carefull y. #
Have the brake system checked immediately at a quali/ed specialist workshop. ÷
ESP ®
wa rning lamp 0ashes *
The yellow ESP ®
wa rning lamp 0ashes while theve hicle is in motion.
One or more wheels ha vereached their grip limit (/ page 228). #
Adapt your driving style tosuit thero ad and weather conditions. Displ
aymessages and warning/indicator lamps
497 497

1, 2, 3 ...
1, 2, 3 ...
4MA
4MA TIC
TIC
Fu nction................................................ 194
12 V batt 12 V batt ery ery
see On-board electrical system bat tery (12 V)
12 V soc ket
12 V soc ket
see Soc ket (12 V)
115 V soc ket
115 V soc ket
see Soc ket (115 V)
360° Camera
360° Camera Care...................................................... 353
Fu nction................................................ 265
Opening the camera co ver (r eversing
camera)................................................. 268
Selecting a view.....................................2 67
Switching automatic operation on/o.
(r ev ersing camera)................................. 268 A A
A/C function A/C function Activating/deactivating (control panel)... 159
Ac tivating/deactivating (MBUX multi-
media system)....................................... 159 ABS (Anti-loc ABS (Anti-loc
k Br
k Braking Syst
aking Syst em)
em).................... 227
A
A cceler
cceler ation
ation
see Kickdown
A
A ccident and Br
ccident and Br eakdo
eakdown Manag
wn Manag ement
ement
Mercedes me connect........................... 324
A
A cous
coustic loc tic loc king
kingv
ver
er i/cation
i/cation signal
signal
Ac tivating/deactivating............................ 82
A
A cous
coustic pr tic pr esence indicat
esence indicat or (sound g
or (sound gener-
ener-
at
at or)
or)
No tes..................................................... 167
A
A cous
coustic V tic Vehicle Indication
ehicle Indication
Sound generator.................................... 167
A
A ctiv
ctiv e Blind Spo
e Blind Spo t Assist
t Assist
Brake application................................... 258
Fu nction................................................ 256
System limi tations.................................. 256
Tr ailer operatio n.................................... .258
A
A ctiv ctiv e bonne
e bonne t (pedes
t (pedestr trian pr ot
ian pr otection)
ection)
Operation.............................................. 342
Re setting............................................... 342
A A ctiv
ctiv e Br
e Br ak
ake Assist
e Assist
Fu nction/no tes...................................... 248
Setting................................................... 253 A
A
ctiv
ctiv e Dist
e Dist ance Assis
ance Assis t DIS
t DISTR
TRONIC
ONIC
Ac tive Emer gency Stop Assist................ 248
Calling up a speed................................. 241
Fu nction................................................ 238
Inc reasing/decreasing speed................. 241
Maximum design speed.......................... 185
Ro ute-based speed adap tation............... 243
Selecting............................................... 241
St oring a speed...................................... 241
Switching o./deactivating.................... .241
Switching on/activating......................... 241
System limitations.................................. 238
A A ctiv
ctiv e Emerg
e Emerg encySt
ency Stop Assist
op Assist ...................... 248
A
A ctiv
ctiv e headlam
e headlam ps
ps........................................ .142
A
A ctiv
ctiv e Lane K
e Lane K eeping Assist
eeping Assist
Ac tivating/deactivating.......................... 261
Ac tivating/deactivating thewa rning....... 262
Fu nction................................................ 259
Setting the sensitivity.............................2 62
System limits......................................... 259
Tr ailer operatio n.................................... .259
A
A ctiv
ctiv e P
e P ar
arking Assist
king Assist
Exiting a parking space. ......................... 275
Fu nction................................................ 272 Ind
ex
501
501