Mercedes-Benz GLC : Doors / 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.
Activate the SmartKey functions.
Check the battery using the
indicator lamp.
Replace the SmartKey battery, if
necessary.
Use the replacement SmartKey.
Use the emergency key to lock or
unlock.
Have the vehicle and SmartKey
checked at a
qualified specialist workshop.
There is interference from a powerful radio signal source.
The KEYLESS-GO function is impaired by, for
example:
- 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
sufficient distance
between the SmartKey and the potential
source of interference.
Requirements:
The SmartKey is outside the vehicle.
The distance between the SmartKey and the
vehicle does not exceed 3 ft (1 m).
The driver's door and the door at which the
door handle is used are closed...
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...
Other information:
Speedometer
The segments on the speedometer indicate
the statuses of the following systems: cruise
control/limiter/Active Distance Assist
DISTRONIC
Outside temperature
Time
Area for additional values (example:
tachometer):
tachometer/navigation/ECO display/
consumption/G-meter/date
Coolant temperature display
During normal operation, the coolant temperature
display is permitted to rise to
248°F (120°C)...
Hill Start Assist holds the vehicle for a short
time when pulling away on a hill under the following
conditions:
The transmission is in position
or
.
The electric parking brake is released.
This gives you enough time to move your foot
from the brake pedal to the accelerator pedal
and depress it before the vehicle begins to roll
away...