Seat Belt Reminder
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2009 Volvo S60, 2008 Volvo S60, 2007 Volvo S60, 2006 Volvo S60, and 2005 Volvo S60. However, it is still accessible from the selected car via links, so may be relevant.
There is a lamp in the upper electronic module (UEM) for the front seat belt reminder. The sensors for the seat belt reminder are in the seat belt buckles. The upper electronic module (UEM) receives information from the supplemental restraint system module (SRS). This information indicates where the seat belt buckle is engaged and whether there is someone in the seat. If someone is in one of the front seats and the seat belt buckle is engaged, the seat belt reminder lamp goes out.