Smart Fortwo key fob not functioning, intermittent issue with locking and unlocking vehicle on Smart Fortwo

Submitted by Vehicle Owner · Jun 23, 2025
Published by RepairPal

Problem overview

Some Smart Fortwo owners report experiencing issues with their key fob not functioning properly, including intermittent problems with locking and unlocking the vehicle. These issues may be attributed to various factors, such as needing a battery replacement in the key fob, which can often resolve the problem. Additionally, owners have noted that ensuring the key fob is compatible with their vehicle model and properly programmed is crucial. Physical damage to the key fob can also impair its function, necessitating inspection. In some cases, the issue may stem from the vehicle's receiver system rather than the key fob itself, which could require addressing interference or battery issues. Owners may also find success by resetting the key fob according to the manufacturer's instructions. If problems persist, there could be underlying issues with the central locking system or signal sensor, prompting the need for professional assistance to diagnose and fix these concerns.

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