Why doesn't the car seat belt warning sound when not buckled?
2 Answers
There may be several reasons why the seat belt reminder alarm is not sounding: Sensor issues: The sensor may not be detecting properly, so it doesn't trigger the alarm; the seat belt receptacle might be faulty - this should be checked; if the passenger's weight is too light, the sensor may fail to detect them; Loose connections: Check if the safety alarm's plug is loose or damaged; inspect the safety alarm circuit to see if the buzzer is malfunctioning. Function of seat belt reminder: This is a warning system that alerts drivers and passengers when seat belts aren't fastened during vehicle operation. When the vehicle detects unfastened seat belts, it displays a warning light on the dashboard; when speed exceeds 20km/h, it switches to an audible alert that lasts for two minutes.
I've been in car repair for years, and issues with seat belt reminders not working are quite common. The most frequent cause is a problem with the sensor under the seat, which can get clogged with dust, wear out over time, or have loose wiring connections. Blown fuses are another possibility, especially in older cars where the relevant fuse in the fuse box might have melted. System settings can also affect it—some cars allow you to disable the reminder function via a button, but I recommend keeping it on for safety. During regular maintenance, have a technician scan for fault codes with a computer to quickly identify the issue. Last time my own car's reminder wasn't working, it turned out to be corroded sensor connectors—cleaning them fixed it. Ultimately, developing the habit of buckling up before driving is key; the reminder is just a backup.
