Acura 2001 CL Owner's Manual page 122

Interior Lights
Courtesy Lights
The courtesy light in each door
comes on when the door is opened,
and goes out when the door is closed.
Your car also has a courtesy light in
the ignition switch. This light comes
on when you open the driver's door.
It remains on for several seconds
after the door is closed.
119
Instruments and Controls