Acura 2008 RL Owner's Manual page 200

Interior Convenience Items
Power Rear Sunshade
POWER REAR
SUNSHADE BUTTON
With the ignition switch in the ON
(II) position, push the power rear
sunshade button on the ceiling
console to raise the rear sunshade.
Push the button again to lower it.
194
When you shift to reverse, the
sunshade goes down automatically.
To use it again, shift to another
position, and push the button to raise
it.
If the sunshade stops while moving,
check for and clear any obstacles,
then push the button again.