2005 Chevrolet Cobalt Owner's Manual - Page 104

Hazard Warning Flashers Your hazard warning flashers let you warn others. They also let police know you have a problem. Your front and rear turn signal lamps will flash on and off. The hazard warning flasher button is located near the center of the instrument panel. Press the button to make the front and rear turn signal lamps flash on and off. Press the button again to turn the flashers off. When the hazard warning flashers are on, your turn signals will not work. Other Warning Devices If you carry reflective triangles, you can set them up at the side of the road about 300 feet (100 m) behind your vehicle. Horn Your hazard warning flashers work no matter what position your key is in, and even if the key is not in. To sound the horn, press the center pad on the steering wheel. 3-6