Seat belt

Problem Possible causes/consequences and •► Solutions

engine, the red seat After starting the engine, the red seat belt warning lamp lights up for six seconds.

The seat belt warning lamp reminds the driver and front passenger to fasten their seat belts.

•► Fasten your seat belt

engine, the red seat After starting the engine, the red seat belt warning lamp lights up. In addition, a warning tone sounds for up to six seconds.

Risk of injury
 The driver's seat belt is not fastened.

•► Fasten your seat belt.

The warning tone ceases.

warning lamp lights up The red seat belt warning lamp lights up after the engine starts, as soon as the driver's or the front-passenger door is closed.

Risk of injury
 The driver or front passenger has not fastened their seat belt.

•► Fasten your seat belt.

The warning lamp goes out.

Risk of injury
 There are objects on the front-passenger seat.

•► Remove the objects from the front-passenger seat and stow them in a secure place.

The warning lamp goes out.

warning lamp flashes The red seat belt warning lamp flashes and an intermittent audible warning sounds.

Risk of injury
 The driver or front passenger has not fastened their seat belt. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h).

•► Fasten your seat belt.

The warning lamp goes out and the intermittent warning tone ceases.

Risk of injury
 There are objects on the front-passenger seat. In addition, you are driving faster than 15 mph (25 km/h) or you have briefly driven faster than 15 mph (25 km/h).

•► Remove the objects from the front-passenger seat and stow them in a secure place.

The warning lamp goes out and the intermittent warning tone ceases.

    See also:

    Restarting the tire pressure monitor
    WARNING It is the driver's responsibility to set the tire pressure to the recommended cold tire pressure. Underinflated tires affect the ability to steer or brake the vehicle. You might los ...

    Important safety notes
    WARNING   If you tow the vehicle, you must use a rigid towing bar if: • the engine is not running. • there is a brake system malfunction. • there is a malfunction in the power suppl ...

    Kickdown
    Vehicles with an AMG engine: it is not possible to use kickdown in manual drive program M. You can also use kickdown for maximum acceleration in manual drive program M. Vehicles for USA: f ...