Mercedes-Benz CLA 2020 Operator's Manual page 488

486 Display messages and warning/indicator lamps
Display messages Possible causes/consequences and
* The transmission position cannot be reliably identified.
Apply Parking Brake Risk
of Rolling Away See Opera-
tor's Manual
Teaching in Transmission * The transmission's teach-in process is complete. All transmission positions can be selected again.
Complete
Transmission Malfunction * The transmission is malfunctioning.
Service Required
Use the electric parking brake to secure the vehicle against rolling away.
#
Consult a qualified specialist workshop.
M M Solutions