Cadillac 2001 DeVille Owner's Manual page 185

Use this system as an aid to help you in seeing objects
beyond the headlamps. Do this by occasionally glancing
at the image as you would a rearview mirror. Do not
stare at the image.
The Night Vision System can be operated if:
D
The brightness control is in any position except OFF
D
it is dark enough outside,
D
the headlamps or fog lamps (if equipped) are on and
D
the ignition is turned to ON.
The controls are located to the left of and below the
steering wheel. They are used to adjust the brightness
and location of the image. Adjust the IMAGE control so
the image is as low as possible while remaining visible.
Slide the dimmer control until the image is no brighter
than necessary to clearly and comfortably see the image.
When the system comes on, you'll see the Night Vision
System symbol in the image. After about one minute,
you should see the view of the road ahead. If you don't
see the image after about two minutes (on cold days it
may take longer for the image to display), there may
be something wrong with the system. See your dealer
for service.
CAUTION:
If the Night Vision System image is too bright,
or too high in your field of view, it may take you
more time to see things you need to see when it's
dark outside. Be sure to keep the image dim and
placed low in your field of view.
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