How to Use the SOS Button in a Car?
3 Answers
Usage of the SOS button in a car: In case of emergencies such as robbery, vehicle accidents, or breakdowns, press and hold the SOS button for more than 2 seconds. The vehicle's emergency warning and rescue system will then send out a distress signal, automatically contacting emergency services. Occupants can communicate verbally with rescuers through a hidden microphone inside the car. The SOS button is typically located near the sunroof switch and is marked with red SOS letters. The onboard SOS system generally includes an SOS control unit, button, microphone, emergency horn, and antenna. SOS is an international Morse code distress signal used to call for help in dangerous situations.
That day I had a tire blowout on the highway, and with trembling hands, I pressed the red SOS button. The moment it connected, I truly felt relieved. This button directly links to the manufacturer's rescue center, so even if you can't clearly describe your location, they can track you via the car's GPS. Pressing it triggers an alert tone, and the microphone near the overhead reading light automatically activates, allowing the rescue center to first confirm whether you need an ambulance or a tow truck. It's worth noting that some cars require the power to be on for it to work (like my old Audi), and in heavy rain with weak signals, the connection might drop. Last time, my neighbor accidentally pressed the button; when it connected, he simply said it was a mistake—no need to panic, but don’t treat it like a toy and press it for fun. Also, when washing the car, avoid spraying the button directly with a high-pressure hose, as water ingress could cause a short circuit.
When picking up the new car, the salesperson specifically reminded me: The button with a red triangle on the center console or sunroof panel is not just for show. In cases of robbery, sudden illness, or a car accident where you can't make a phone call, pressing and holding it for 3 seconds will activate the emergency call. The system will prioritize calling the contracted local rescue agency, and some high-end cars will automatically upload collision data to the backend. Once, while accompanying a friend on a test drive, he accidentally pressed it, and the center console screen immediately displayed a cancel button—pressing cancel within 30 seconds would prevent the service from connecting. It's important to note that this function usually becomes inactive when the vehicle loses power, and poor signal in underground garages may also cause the call to fail. It's recommended to have the mechanic test the button's sensitivity during the first maintenance, especially for touch-sensitive buttons that are prone to dust accumulation.
