Pontiac 2004 Bonneville - Manual (Page 143)

HUD shows these images when they are lighted on the
instrument panel.
The speedometer may display a difference of 1.5 mph
(2.4 km/h) from the HUD image. This is normal.
When the ignition key is turned to ON, all possible HUD
images will come on, then the HUD will operate normally.
If you never look at your instrument panel cluster, you
may not see something important, such as a warning
light. So be sure to scan your displays and controls and
the driving environment just as you would in a vehicle
without HUD.
Notice: If you try to use the HUD image as a
parking aid, you may misjudge the distance and
damage your vehicle. Do not use the HUD image as
a parking aid.
The HUD controls are located to the left of the steering
column.
1. Start your engine and turn the HUD INTENSITY
knob all of the way clockwise to MAX (Maximum).
The brightness of the HUD image is determined
by ambient light, and where you have set the HUD
INTENSITY knob.
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