Hummer 2005 H2 - Manual (Page 157)

Dome Lamps
The dome lamps will come on when you open a door or
the midgate, if equipped, and will turn off when all
doors or midgate are closed.
You can also turn the dome lamps on by turning the
thumbwheel, located next to the exterior lamp control, all
the way up. In this position, the dome lamps will
remain on whether a door is opened or closed.
E (Dome Override): Press this button, located below
the exterior lamp control, to turn dome lamps off even
while a door is opened. To return the lamps to automatic
operation, press the button again and it will return to
the out position. In this position, the dome lamps
will come on when you open a door.
Entry/Exit Lighting
Your vehicle is equipped with an illuminated entry/exit
feature.
When a door is opened or the key is removed from the
ignition, the dome lamps will come on if the dome
override button is in the out position.
Reading Lamps
Your vehicle has reading lamps located in the overhead
console. Press the button located next to the lamp to
turn it on. The lamps can be adjusted to point in
the direction you want.
Press the button again to turn the lamp off.
These lamps will also come on with the dome lamps.
Battery Run-Down Protection
This feature shuts off the dome lamps if they are left on
for more than 10 minutes when the ignition is in lock.
This will keep your battery from running down.
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