Mercedes-Benz GLC 2016-2026 Owners Manual / Opening and closing / Doors / Activating/deactivating the automatic locking feature
Mercedes-Benz GLC : Doors / Activating/deactivating the automatic locking feature
The vehicle is locked automatically when the ignition is switched on and the wheels are turning faster than walking pace.
To activate: press and
hold button 
for
approximately five seconds until an acoustic
signal sounds.
To deactivate: press and
hold button 
for
approximately five seconds until an acoustic
signal sounds.
In the following situations, there is a danger of being locked out when the function is activated:
- While the vehicle is being tow started/ pushed.
- If the vehicle is being tested on a roller dynamometer.
Problems with KEYLESS-GO, troubleshooting
You can no longer lock or unlock the vehicle
using KEYLESS-GO
Possible causes:
The SmartKey functions have been deactivated.
The SmartKey battery is weak or discharged...
Locking/unlocking the driver's door with the emergency key
If you wish to lock the vehicle entirely using
the emergency key, first press the button for
locking from the inside while the driver's
door is open...
Other information:
Mercedes-Benz GLC 2016-2026 Owners Manual: Function of PRE-SAFE® PLUS (anticipatory occupant protection plus)
PRE-SAFE® (anticipatory occupant protection) PRE-SAFE® is able to detect certain critical driving situations and implement pre-emptive measures to protect the vehicle occupants. PRE-SAFE® can implement the following measures independently of each other: Tightening the seat belts on the driver's seat and front passenger seat...
Mercedes-Benz GLC 2016-2026 Owners Manual: Summer tires
1 "ZR" stated in the tire code. 2 Or "M+Si" for winter tires. Specifying the speed rating as the "ZR" index in tire code is optional for tires up to 186 mph (300 km/h). If your tire code includes "ZR" and there is no speed rating , find out what the maximum speed is from the tire manufacturer...
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Unlocking/opening the doors from the inside
To unlock and open a front
door: pull door
handle 
.
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