Hazard Warning Flashers; Other Warning Devices; Horn; Tilt Wheel - GMC 2005 Sierra Denali Owner's Manual

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.
Your hazard warning flashers work no matter what
position your key is in, and even if the key is not in the
ignition.
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.
3-6
The hazard warning
flasher button is located on
top of the steering
column.

Horn

To sound the horn, press the center pad on the steering
wheel.

Tilt Wheel

If your vehicle is equipped with a tilt wheel, it will allow
you to adjust the steering wheel before you drive.
You can raise it to the highest level to give your legs
more room when you exit and enter your vehicle.
The tilt steering wheel lever is located on the lower left
side of the column.