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How to Reset the Automatic Gearbox on a Smart?

Model: Smart Smart 450 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Part: Warning light – error code

See other generations:
Video tutorial

The flashing letter N on the instrument panel of your Smart indicates a fault in the automatic gearbox. To temporarily resolve this issue, you can engage a gear while the engine is off. With the gear engaged and the ignition key in position two, push the car to start it. Once you release the brake pedal during the pushing operation, the car will start.

However, you should promptly visit a garage to diagnose and identify the cause of the malfunction.


Updated on 16 September 2026 by ScegliAuto


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