User Manual - Page 69

For 2020 GLC Coupe.

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#
Press release button 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 bat‐
tery when doing this.
#
Push in battery compartment 3.
#
Re-attach cover 1 and push it until it
engages.
Problems with the SmartKey
Problem
Possible causes/consequences and MM Solutions
You can no longer lock or unlock the
vehicle.
Possible causes are:
R
The SmartKey battery is discharged or nearly discharged.
R
There is interference from a powerful radio signal source.
R
The SmartKey is defective.
#
Check the battery using the battery check lamp and replace if necessary (/ page 66).
#
Use the emergency key to lock or unlock (/ page 66).
#
Have the SmartKey checked at a qualified specialist workshop.
#
Have the SmartKey deactivated at a qualified specialist workshop.
Opening and closing
67
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