Seat Belt Reminder
The seat belt reminder reminds the driver to put on the seat belt. There are two versions of the seat belt reminder:
- European and
- American.
The difference between the two is described below. The signals which indicate the variant (European or American) are transmitted by the central electronic module (CEM) (4/56) via the control area network (CAN). Two small symbols light by the lamp in the roof to indicate that the seat belt is not fastened. The driver information module (DIM) (5/1) emits an audible signal to warn the driver that the seat belt is not fastened.
European version (applies up to and incl. structure week 200650)
All the seats in the vehicle are monitored.
The light symbols will light in the Driver information module (DIM) and in the lamp module in the roof if the belt is not fastened when the ignition is switched on. There is an audible signal from the driver information module (DIM) when the vehicle speed exceeds 10 km/h. This continues for 6 seconds until either the seat belt is fastened or reverse gear is selected or the audible signal is switched off using the Read button on the control stalk. The audible signal's frequency increases at speeds exceeding 25 km/h and at speeds exceeding 40 km/h the volume also increases.
For the backseat there is status monitoring that generates various text messages depending on which belts are used. These messages are turned off 30 seconds after the vehicle has reached speed above 10 km/h.
European version (applies from and incl. structure week 200651)
All the seats in the vehicle are monitored.
Front seats:
The light symbols will light in the Driver information module (DIM) and in the lamp module in the roof if the belt is not fastened when the ignition is switched on. There is an audible signal from the driver information module (DIM) when the vehicle speed exceeds 10 km/h. This continues until the belt is fastened or reverse engaged. The audible signal, s frequency increases at speeds exceeding 25 km/h and at speeds exceeding 40 km/h the volume also increases. If the loudest volume is activated, above 40 km/h, it will continue for 90 seconds even if the speed drops below 40 km/h.
Backseat:
For the rear seat there is a status monitor that generates different text messages depending on which seat belt is used. These messages go out 30 seconds after the vehicle has reached a speed greater than 10 km/h if a belt is fastened. If a belt is unfastened, the driver is alerted via text message as well as light and audible signals. The signals follow the front seat.
All messages can be switched off using the Read button on the control stalk.
American version (-2004)
When the ignition is switched on, the symbols light continuously for 6 seconds, or until the driver's seat belt is fastened. At the same time there will be a ringing sound from the driver information module (DIM) for the same period of time. If the driver then undoes the seat belt, the audible signal will not resume if more than 6 seconds have passed since the ignition was switched on.
American version (2005-2008)
When the ignition is switched on, the symbols light continuously for 6 seconds, or until the driver's seat belt is fastened. At the same time there will be a ringing sound from the driver information module (DIM) for the same period of time. The seat belt reminder for the front passenger will also be activated after 1 minute. There will then be a 6-second signal every 30 seconds should either the driver or the front passenger not have their seat belt fastened. Once 6 seconds have passed since the ignition was switched on, the seat belt reminder is deactivated and there is no audible signal.
American version (2009-)
All the seats in the vehicle are monitored.
Front seats:
The light symbols will light in the Driver information module (DIM) and in the lamp module in the roof if the belt is not fastened when the ignition is switched on. There is an audible signal from the driver information module (DIM) when the vehicle speed exceeds 10 km/h. This continues for 6 seconds until either the seat belt is fastened or reverse gear is selected.
Backseat:
For the rear seat there is a status monitor that generates different text messages depending on which seat belt is used. These messages go out 6 seconds after the vehicle has reached a speed greater than 10 km/h if a belt is fastened. If a belt is unfastened, the driver is alerted via text message as well as light and audible signals. The signals follow the front seat.
All messages can be switched off using the Read button on the control stalk.