Mercedes-Benz AMG GT 53 4MATIC+ 2019 Operator's Manual page 165

The seat belt tongue is not inserted in the
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seat belt buckle of the driver's seat and the
driver's door is opened.
There is a system malfunction.
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The power supply is insufficient.
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The vehicle is stationary for a lengthy period.
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When the electric parking brake is applied, the
red F (USA) or ! (Canada) indicator lamp
appears in the instrument cluster.
The electric parking brake is not automatically
applied if the engine is switched off by the ECO
start/stop function.
Electric parking brake function (releasing
automatically)
The electric parking brake is released when the
following conditions are fulfilled:
The engine is running.
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The seat belt tongue is inserted into the seat
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belt buckle of the driver's seat.
The transmission is in position h or k and
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you depress the accelerator pedal or you
shift from transmission position j to h or
k.
If the seat belt tongue is not inserted into the
seat belt buckle of the driver's seat, the follow‐
ing conditions must be fulfilled:
The driver's door is closed.
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You move the transmission out of transmis‐
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sion position j or you have previously
driven faster than 2 mph (3 km/h).
When the electric parking brake is released, the
red F (USA) or ! (Canada) indicator lamp
in the instrument cluster goes out.
Driving and parking 163
Applying/releasing the electric parking
brake manually
Applying
Push handle 1.
#
The red F (USA) or ! (Canada) indica‐
tor lamp appears in the instrument cluster.