1995 GMC Jimmy Owner's Manual - Page 204

Push the button on top of the steering column all the way down to make yourfront and rear turn signallights flash on and off. Your hazard warning flashers work no matter what position your key is in, and even if the key isn't in. To turn off the flashers, push the button until the click and release. first When the hazard warning flashers areon, your turn signals won't work. The flashers will stop if you step on the brake. Other Warning Devices If you carry reflective triangles,you can set one up at the side of the road about 300 feet (100 m) behind your vehicle. 5-2