Mercedes-Benz GLB 2021 Series Operator's Manual page 369

Display messages Possible causes/consequences and
Transmission Malfunction * The transmission is malfunctioning. The cause could be an overheated clutch or blocked gears.
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* The transmission is overheating. When the display message is active, start-up and driving characteristics may be
Transmission Oil Overhea-
ted Drive with Caution
Parking Lock Inoperative * The transmission is malfunctioning. The park position j cannot be selected.
Apply Parking Brake
Teaching in Transmission * The transmission is being taught in. There is a risk of the vehicle rolling away.
Operate Selector Lever
Apply Brake for XX s Risk
of Vehicle Rolling Away
Until then, always select park position j manually before you switch off the engine.
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Before leaving the vehicle, apply the electric parking brake.
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Let the transmission cool down.
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If the display message still appears following a restart, consult a qualified specialist workshop.
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temporarily impaired.
Drive at low engine speed.
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Avoid sporty driving.
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Before pulling away on uphill gradients, let the transmission cool down until the display message disappears.
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Park the vehicle safely.
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Use the electric parking brake to secure the vehicle against rolling away.
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Depress and hold the brake pedal until the teach-in process has been completed.
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The electric parking brake is applied automatically during the teach-in process.
Switch on the ignition.
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Select park position j, transmission position k or neutral i.
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Display messages and warning/indicator lamps 367
M M Solutions