Driver Assistance and Safety Systems
Seatbelt Alarm Triggered When Stationary and Out of Gear
The Issue
Several cars tested triggered the seatbelt alarm for the driver when the belt was removed while the car was stationary, with the engine running and no drive gear selected. This is a common and entirely natural real-world situation: a driver who has arrived at a destination, left the engine running to finish a phone call or deal with something, and removed their seatbelt as a natural signal that the journey is over. The alarm treats this as a safety violation and sounds accordingly.
Why It Matters
The seatbelt alarm exists to protect occupants during vehicle motion. A driver who has stopped completely, selected park or neutral, and removed their belt is not in a situation where that protection is relevant. Triggering an alert here is a false positive, and unlike many calibration issues it has a simple and obvious software fix. Repeated false positives from any safety system train drivers to dismiss alerts automatically, without assessing whether the alert is genuine. An alarm that fires at the wrong moment does not just fail to help. It makes every other alert the car produces slightly less credible, which is precisely the opposite of what a safety system should achieve.