Acura 2010 TL Owner's Manual page 217

Interior Lights
: Models equipped with the
keyless access system have an
engine start/stop button instead
of an ignition switch. ON Mode
is the equivalent of ON (II). For
more information, see pages
178 and 181 .
The courtesy light in each front door
comes on when the door is opened,
and goes out when the door is closed.
In addition to the courtesy light on
the ceiling, the driver's ambient foot
light comes on.
On models without keyless access
system
Your vehicle also has a courtesy light
in the ignition switch. This light
comes on when you open the driver's
door. It fades out in about 30
seconds after the door is closed.
214
Keyless Access Remote Slot Light
On models with Keyless Access
System
LIGHTS
Your vehicle has a keyless access
remote slot light. The light comes on
when you:
Open any door.
2010 TL
Set the vehicle mode to VEHICLE
OFF (LOCK).
Remove the keyless access remote
from the keyless access remote
slot.
After all doors are closed tightly, the
light dims slightly, then fades out in
about 30 seconds (depending on the
interior light dimming timer setting).
The light turns off before 30 seconds
have elapsed if you lock the driver's
door.