Get Opening and closing Guide for Mercedes G Class SUV Fourth Generation (2019-2024)

SmartKey

Overview of SmartKey functions

WARNING Risk of accident and injury due

to children le unattended in the vehicle

If you leave children unattended in the vehicle,

they could, in particular:

open doors, thereby endangering other

persons or road users.

get out and be struck by oncoming trac.

operate vehicle equipment and become

trapped, for example.

In addition, the children could also set the

vehicle in motion by, for example:

releasing the parking brake.

changing the gearbox position.

starting the vehicle.

Never leave children unattended in the

vehicle.

When leaving the vehicle, always take the

key with you and lock the vehicle.

Keep the key out of reach of children.

NOTE Damage to the SmartKey caused by

magnetic elds

Keep the SmartKey away from strong

magnetic elds.

Vehicle key with panic alarm

Locks

Indicator lamp

Unlocks

Panic alarm

If indicator lamp 2 does not light up when

the Ü or ß button is pressed, the bat-

tery is weak or possibly discharged. Replace

the battery as soon as possible.

Replace the SmartKey battery (/ page 67).

The SmartKey locks and unlocks the following

components:

Doors

Fuel ller ap

Rear-end door

If the vehicle is not opened within approximately

40 seconds aer unlocking, it locks again. Anti-

the protection is armed again.

Do not keep the SmartKey together with elec-

tronic devices or metal objects. This can aect

the SmartKey's functionality.

Opening and closing

Activating/deactivating the acoustic locking veri-

cation signal

Multimedia system:

Vehicle

Vehicle Settings

Acoustic Lock

Activate O or deactivate ª the function.

Activating/deactivating the panic alarm

Requirements:

The vehicle is switched o.

To activate: press button 1 for approximately

one second.

A visual and audible alarm is triggered.

To deactivate: briey press button 1 again.

Press the start/stop button.

A SmartKey belonging to the vehicle must be

detected in the vehicle.

Changing the unlocking settings

Possible unlocking functions of the SmartKey:

Central unlocking

Unlocking the driver's door and fuel ller ap

To switch between settings: press the Ü

and ß buttons simultaneously for approx-

imately six seconds until the indicator lamp

ashes twice.

Options if the unlocking function for the driver's

door and fuel ller ap has been selected:

To unlock the vehicle centrally: press the

Ü button twice.

Deactivating the function of the SmartKey

If you do not use the vehicle or a SmartKey for an

extended period of time, you can also deactivate

the function of the SmartKey to reduce the energy

consumption of the SmartKey.

Press and hold the ß button on the Smart-

Key.

With the ß button pressed, immediately

press the Ü button on the SmartKey twice

in quick succession.

The indicator lamp on the SmartKey lights up

once briey and once for a long time.

You have the following options to reactivate

the SmartKey:

Press any button on the SmartKey.

Start the vehicle with the SmartKey in the

center console stowage compartment

(/ page 125).

Opening and closing

Removing/inserting the emergency key

Removing the emergency key

Press release button 1.

Emergency key

2 will be pushed out slightly.

Pull out emergency key 2 until it engages in

the intermediate position.

Press release button 1 again and fully

remove emergency key

Inserting the emergency key

Press release button 1.

Insert emergency key 2 to the intermediate

position or fully until it engages.

You can use the intermediate position of

emergency key 2 to attach the SmartKey to

a key ring.

Replacing the key battery

DANGER Risk of fatal injury due to swal-

lowing batteries

Batteries contain toxic and corrosive substan-

ces. If batteries are swallowed or otherwise

enter the body, severe internal burns can

occur within two hours.

There is a risk of fatal injury!

Keep the batteries out of the reach of

children.

If the lid and/or the battery compart-

ment do not close securely, stop using

the key and keep it away from children.

If batteries are swallowed or otherwise

enter the body, seek immediate medical

attention.

ENVIRONMENTAL NOTE Environmental

damage due to improper disposal of bat-

teries

Batteries contain pollutants. It is illegal

to dispose of them with the household rub-

bish.

Dispose of batteries in an

environmentally responsible manner.

Take discharged batteries to a qualied

specialist workshop or to a collection

point for used batteries.

Requirements

You require a CR 2032 3 V cell battery.

Mercedes-Benz recommends that you have the

battery replaced at a qualied specialist work-

shop.

Remove the mechanical key (/ page 67).

Opening and closing

Press release knob 2 down fully and slide

cover

1 in the direction of the arrow.

Fold out cover 1 in the direction of the arrow

and remove.

Remove battery compartment 3 and take

out the discharged battery.

Insert the new battery into battery compart-

ment 3. Observe the positive pole marking in

the battery compartment and on the battery

when doing this.

Push in battery compartment 3.

Re-attach cover 1 and push it until it

engages.

Problems with the key, troubleshooting

You can no longer lock or unlock the vehicle

Possible causes are:

The key battery is weak or discharged.

Check the battery using the indicator lamp

(/ page 65).

Replace the key battery, if necessary

(/ page 67).

Use the replacement key.

Use the mechanical key to lock or unlock

(/ page 70).

Have key checked at a qualied specialist

workshop.

There is interference from a powerful radio signal

source

Possible causes if the function of the key is

impaired:

high voltage power lines

mobile phones

electronic devices (notebooks, tablets)

shielding due to metal objects or induction

loops for electrical gate systems or automatic

barriers

Make sure that there is sucient distance

between the key and the potential source of

interference.

You have lost a key

Have the key deactivated at a qualied spe-

cialist workshop.

If necessary, have the mechanical lock

replaced as well.

Opening and closing

Doors

Unlocking/opening the doors from the inside

To unlock and open a front door: pull door

handle

Locking pin

1 pops up when the door is

unlocked.

To unlock a rear door: pull the locking pin of

the rear door upwards.

The rear door is unlocked.

To open a rear door: pull the rear door handle.

Centrally locking and unlocking the vehicle from

the inside

To unlock: press button 1.

To lock: press button 2.

The buttons are also on the front passenger

door.

This does not lock or unlock the fuel ller ap.

The vehicle will not be unlocked:

if you have locked the vehicle using the key

if the vehicle is switched o over a prolonged

period of time

Activating or deactivating the automatic locking

feature

Multimedia system:

Vehicle

Vehicle Settings

The vehicle is locked automatically when the

vehicle is switched on and the wheels are

turning faster than walking pace.

Activate or deactivate Automatic Door Lock.

In the following situations, there is a danger of

being locked out when the function is activated:

The vehicle is being towed or pushed.

Opening and closing

If the vehicle is being tested on a roller dyna-

mometer.

Locking/unlocking the driver's door with the

mechanical key

Remove the mechanical key (/ page 67).

Insert the mechanical key into the lock of the

driver's door as far as it will go.

To unlock: turn the mechanical key counter-

clockwise as far as it will go to position 1.

To lock: turn the mechanical key clockwise as

far as it will go to position 2.

Vehicles with the "embossed door handle"

optional equipment: the lock cylinder for the

emergency release is located in the door han-

dle on the rear door.

Rear-end door

Opening and closing the rear-end door

DANGER Risk of poisoning from exhaust

gases

Combustion engines emit poisonous exhaust

gases, such as carbon monoxide. Exhaust

gases can enter the vehicle interior if the rear-

end door is open when the engine is running,

especially if the vehicle is in motion.

Always switch o the engine before

opening the rear-end door.

Never drive with the rear-end door open.

WARNING Risk of injury from unsecured

items in the vehicle

If objects, luggage or loads are not secured or

not secured suciently, they could slip, tip

over or be thrown around and thereby hit vehi-

cle occupants.

There is a risk of injury, particularly in the

event of sudden braking or a sudden change

in direction.

Always stow objects in such a way that

they cannot be thrown around.

Before the journey, secure objects, lug-

gage or loads against slipping or tipping

over.

NOTE Damage to the rear-end door when

opening

The rear-end door swings out to the side when

it is opened.

Ensure that there is sucient clearance.

Opening and closing

To open: press the Ü button on the key.

Press release button 1 and pull door handle

Open the rear-end door.

To close: close the rear-end door.

Press the ß button on the key.

The rear-end door is locked.

Side windows

Opening and closing the side windows

WARNING Risk of entrapment when open-

ing a side window

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

When opening, make sure that nobody is

touching the side window.

If someone is trapped, release the but-

ton immediately or pull it in order to

close the side window again.

WARNING Risk of becoming trapped when

closing a side window

When closing a side window, body parts could

be trapped in the closing area in the process.

When closing, make sure that no body

parts are in the closing area.

If someone is trapped, release the but-

ton immediately or press the button in

order to reopen the side window.

WARNING Risk of becoming trapped when

children operate the side windows

Children could become trapped if they operate

the side windows, particularly when unatten-

ded.

Activate the child safety lock for the rear

passenger compartment side windows.

When leaving the vehicle, always take the

SmartKey with you and lock the vehicle.

Never leave children unattended in the

vehicle.

Requirements

The power supply or the vehicle has been

switched on.

Opening and closing

Closing

Opening

The buttons on the driver's door take precedence.

To start automatic operation: press the W

button beyond the point of resistance or pull

and release it.

To interrupt automatic operation: press or pull

the W button again.

When the vehicle is switched o, you can con-

tinue to operate the side windows.

This function is available for around four minutes

or until a front door is opened.

Automatic reversing function of the side windows

If an obstacle impedes a side window during the

closing process, the side window will open again

automatically. The automatic reversing function is

only an aid and is not a substitute for your atten-

tiveness.

During the closing process, make sure that no

body parts are in the closing area.

WARNING Risk of becoming trapped

despite there being reversing protection

on the side window

The reversing function does not react:

To so, light and thin objects, e.g. ngers.

During resetting.

The reversing function cannot prevent some-

one from becoming trapped in these situa-

tions.

During the closing process, make sure

that no body parts are in the closing

area.

If someone becomes trapped, press the

W button to open the side window

again.

Convenience opening (ventilating the vehicle

before starting a journey)

WARNING Risk of entrapment when open-

ing a side window

When opening a side window, parts of the

body could be drawn in or become trapped

between the side window and window frame.

When opening, make sure that nobody is

touching the side window.

Release the button immediately if some-

body becomes trapped.

Requirements

The SmartKey is in the immediate vicinity of

the vehicle.

Opening and closing

Press and hold the Ü button on the Smart-

Key.

The following functions are performed:

The vehicle is unlocked.

The side windows are opened.

The sliding sunroof is opened.

The seat ventilation of the driver's seat is

switched on.

To interrupt convenience opening: release the

Ü button.

To continue convenience opening: press and

hold the Ü button again.

Convenience closing (closing the vehicle from out-

side)

WARNING Risk of entrapment due to not

paying attention during convenience clos-

ing

When the convenience closing feature is oper-

ating, parts of the body could become trapped

in the closing area of the side window and the

sliding sunroof.

When the convenience closing feature is

operating, monitor the entire closing

process and make sure that no body

parts are in the closing area.

Requirements

The key is in the immediate vicinity of the vehi-

cle.

Press and hold the ß button on the key.

The following functions will be performed:

The vehicle will be locked.

The side windows will be closed.

The sliding sunroof will be closed.

To interrupt convenience closing: release the

ß button.

To continue convenience closing: press and

hold the ß button again.

Resolving problems with the side windows

WARNING Risk of becoming trapped or

fatally injured if reversing protection is not

activated

If you close a side window again immediately

aer it has been blocked, the side window will

close with increased or maximum force. The

reversing function is then not active and body

parts may become trapped.

Make sure that no parts of the body are

in the closing area.

To stop the closing process, release the

button or press the button again to

reopen the side window.

A side window cannot be closed and you cannot

see the cause.

Check to see whether any objects are in the

window guide.

Adjust the side windows.

Adjusting the side windows

Opening and closing

If a side window is obstructed during closing and

reopens again immediately:

Immediately aer this, pull and hold the corre-

sponding button again until the side window

has closed and hold the button for at least one

more second (re-adjustment).

The side window will be closed without the

automatic reversing function.

If the side window is obstructed again and

reopens again immediately:

Immediately aer this, pull and hold the corre-

sponding button again until the side window

has closed and hold the button for at least one

more second (follow-up adjustment).

The side window will be closed without the

automatic reversing function.

The side windows cannot be opened or closed

using the convenience opening feature.

Possible causes:

The key battery is weak or discharged.

Check the battery using the indicator lamp

(/ page 65).

Replace the key battery, if necessary

(/ page 67).

Sliding sunroof

Opening and closing the sliding sunroof

WARNING Risk of becoming trapped when

the sliding sunroof is being opened and

closed

Body parts may become trapped in the range

of movement.

During opening and closing, make sure

that no body parts are in the range of

movement.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during automatic operation.

The opening or closing process will be

stopped.

WARNING Risk of becoming trapped if the

sliding sunroof is operated by children

Children operating the sliding sunroof could

get caught in the moving parts, particularly if

unattended.

Never leave children unattended in the

vehicle.

When leaving the vehicle, always take the

key with you and lock the vehicle.

NOTE Malfunction due to snow and ice

Snow and ice may cause the sliding sunroof to

malfunction.

Open the sliding sunroof only if it is free

of snow and ice.

NOTE Damage caused by protruding

objects

Objects that protrude from the sliding sunroof

may damage the seals.

Opening and closing

Do not allow anything to protrude from

the sliding sunroof.

NOTE Damage to the sliding sunroof due

to insucient headroom

When the sliding sunroof is raised, the vehicle

will be higher than 7  (2 m).

Ensure that sucient headroom is availa-

ble before you open the sliding sunroof

in garages or parking garages, for exam-

ple.

NOTE Damage to the sliding sunroof when

a roof luggage rack is installed

When a roof luggage rack is installed, raising

or opening the sliding sunroof may be restric-

ted.

Check whether the sliding sunroof can

be raised or opened when a roof luggage

rack is installed.

If in doubt, do not raise or open the slid-

ing sunroof.

Raise

Open

Close/lower

Check whether the sliding sunroof can be

raised or opened when a roof luggage rack is

installed.

To start automatic operation: press the 3

button beyond the point of resistance or pull

and release it.

To interrupt automatic operation: briey press

the 3 button in any direction.

The opening/closing process will be stopped.

Vehicles without a panorama roof with power tilt/

sliding panel: the automatic opening and raising

features are available only when the sliding sun-

roof is closed.

Automatic reversing function of the sliding sun-

roof

If an obstacle obstructs the sliding sunroof during

the closing process, the sliding sunroof will open

again automatically. The automatic reversing func-

tion is only an aid and is not a substitute for your

attentiveness.

During the closing process, make sure that no

body parts are in the closing area.

Opening and closing

WARNING Risk of becoming trapped

despite the reversing function being active

In particular, the reversing function does not

react:

To so, light and thin objects, e.g. ngers.

Towards the end of the closing procedure.

During resetting.

During the closing process, make sure

that no body parts are in the closing

area.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during automatic operation.

The closing process will be stopped.

Rectifying problems with the sliding sunroof

WARNING Risk of becoming trapped or

fatal injuries when the sliding sunroof is

closed again

If the sliding sunroof is closed again immedi-

ately aer it has been blocked or reset, it will

close with increased force.

Make sure that no parts of the body are

in the closing area.

Release the button immediately if some-

body becomes trapped.

Briey press the button in any direction

during the automatic closing process.

The closing process will be stopped.

The sliding sunroof cannot be closed and you can-

not see the cause.

If the sliding sunroof is obstructed during closing

and reopens again slightly:

Immediately aer automatic reversing, pull

and hold the 3 button down again to the

point of resistance until the sliding sunroof is

closed.

The sliding sunroof will be closed with

increased force.

If the sliding sunroof is obstructed again and

opens again slightly:

Repeat the previous step.

The sliding sunroof will be closed again with

increased force.

Vehicles without a panorama roof with power tilt/

sliding panel: The sliding sunroof is not operating

smoothly.

Reset the sliding sunroof.

Resetting the sliding sunroof

Push the 3 button up to the point of resist-

ance repeatedly until the sliding sunroof is

fully open.

Press the 3 button for another second.

Close the sliding sunroof.

Opening and closing

Anti-the protection

Function of the immobilizer

The immobilizer prevents your vehicle from being

started without the correct key.

The immobilizer will automatically be activated

when the vehicle is switched o, and deactivated

when the vehicle is switched on.

When leaving the vehicle, always take the key with

you and lock the vehicle. Anyone can start the

vehicle if a valid key has been le inside the vehi-

cle.

In the event the engine cannot be started (yet

the vehicle’s battery is charged), the system

will not be operational. Contact an authorized

Mercedes-Benz center or call

1-800-FOR-MERCedes (in the USA) or

1-800-387-0100 (in Canada).

ATA (anti-the alarm system)

▌Function of the ATA system

If the ATA system is armed, a visual and audible

alarm will be triggered in the following situations:

when a door is opened

when the rear-end door is opened

when the hood is opened

when interior protection is triggered

(/ page 78)

when the tow-away alarm is triggered

(/ page 78)

The ATA system will be armed automatically aer

approximately ten seconds in the following situa-

tions:

aer the vehicle is locked with the key

Indicator lamp 1 will ash when the ATA system

is armed.

The ATA system will be deactivated automatically

in the following situations:

aer the vehicle is unlocked with the key

aer the start/stop button is pressed with the

key in the stowage compartment

(/ page 125)

Opening and closing

If the battery is heavily discharged, the burglar

alarm system will automatically be deactiva-

ted to allow for the next engine start.

▌Deactivating the ATA

Press the Ü or ß button on the key.

Press the start/stop button with the key in the

stowage compartment (/ page 125)

Function of the tow-away alarm

An audible and visual alarm is triggered if an alter-

ation to your vehicle's angle of inclination is

detected while the tow-away alarm is armed.

The tow-away alarm is automatically armed aer

approximately 60 seconds:

aer the vehicle is locked with the SmartKey

The tow-away alarm is only armed when the fol-

lowing components are closed:

doors

rear-end door

The tow-away alarm is automatically deactivated:

aer the Ü button on the SmartKey is

pressed

aer the start/stop button is pressed with the

SmartKey in the stowage compartment

(/ page 125)

Information on collision detection when the vehi-

cle is parked (/ page 158).

Activating/deactivating tow-away protection

Multimedia system:

Vehicle

Vehicle Settings

Tow-away Protection

Activate O or deactivate ª the function.

Tow-away protection is reactivated in the following

cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

Function of interior protection

When interior protection is armed, a visual and

audible alarm is triggered if movement is detected

in the vehicle interior.

Interior protection is armed automatically aer

approximately ten seconds:

aer the vehicle is locked with the SmartKey

Interior protection is only armed when the follow-

ing components are closed:

doors

rear-end door

Interior protection is automatically deactivated:

aer the Ü button on the SmartKey is

pressed

aer the start/stop button is pressed with the

SmartKey in the stowage compartment

(/ page 125)

The following situations can lead to a false alarm:

when there are moving objects suchas mas-

cots in the vehicle interior

if a side window is open

Opening and closing

if the sliding sunroof is open

Activating/deactivating interior protection

Multimedia system:

Vehicle

Vehicle Settings

Interior Motion Sensor

Activate O or deactivate ª the function.

Interior protection is reactivated in the following

cases:

The vehicle is unlocked again.

A door is opened.

The vehicle is locked again.

Opening and closing

Opening and closing for Your Mercedes G Class SUV Fourth Generation (2019-2024)

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