GM None Pontiac Aztek - Manual (Page 133)

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.
Horn
You can sound the horn by pressing the horn symbols
on your steering wheel.
Tilt Wheel
A tilt wheel allows 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
the vehicle.
The lever that allows you to tilt the steering wheel is
located on the left side of the steering column. To tilt the
wheel, hold the wheel and pull the lever. Then move
the wheel to a comfortable position and release the lever
to lock the wheel in place.
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