2003 GMC Envoy Owner's Manual - Page 131

The button for the hazard warning flashers is located on top of the steering column. Horn To sound the horn, press the horn symbols on the steering wheel pad. Tilt Wheel You should adjust the steering wheel before you drive. The tilt lever is located on the driver's side of the steering column, under the turn signal lever. The hazard warning flashers work no matter what position your key is in, and even if the key isn't in. Press the button all the way down to make your front and rear turn signal lamps flash on and off. To turn off the flashers, press the button again until it clicks and then release it. When the hazard warning flashers are on, the turn signals won't work. You can raise it to the highest level to give your legs more room when you enter and exit the vehicle. 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. To tilt the wheel, hold the steering wheel and pull the lever toward you. Move the steering wheel to a comfortable level, then release the lever to lock the wheel in place. Do not adjust the steering wheel while driving. 3-6