GMC 2004 Savana - Manual (Page 129)

Other Warning Devices
If you carry reflective triangles, you can use them to
warn others. Set one up at the side of the road about
300 feet (100 m) behind your vehicle.
Horn
Press the horn symbol in the middle of the steering
wheel to sound the horn.
Tilt Wheel
A tilt steering wheel allows you to adjust the steering
wheel before you drive. You can also raise it to the
highest level to give your legs more room when
you enter and exit the vehicle.
The lever is located on the lower left side of the steering
column.
To tilt the wheel, hold the steering wheel and pull the
lever. Move the steering wheel to a comfortable
level, then release the lever to lock the wheel in place.
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