Hummer 2007 H2 Owner's Manual page 187

The exterior lamp control has four positions:
(Off): Turn the knob to this position to turn off
O
all exterior lamps including the DRL. This
control will spring back to AUTO when released.
AUTO (Automatic): Turn the control to this
position to put the system into automatic headlamp
mode. AUTO mode, if enabled, will turn the
exterior lamps, including your DRL, on and off
automatically depending on how much light
is available outside the vehicle.
Your automatic lights may be disabled even if the
control is in the AUTO position.
To enable automatic lighting, do any of the
following:
•
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
•
Turn the headlamp control from the parking
lamp position to AUTO.
•
Turn the headlamp control from the headlamp
position to AUTO.
•
Turn your engine off and then on again with
the headlamp control in AUTO.
To disable automatic lighting, do any of the
following:
•
Turn the headlamp control from AUTO to off
and release the control. It will return back to
the AUTO position by itself.
•
Turn the headlamp control from AUTO to the
parking lamp position.
•
Turn the headlamp control from AUTO to the
headlamp position.
(Parking Lamps): Turn the control to this
;
position to turn on the parking lamps, together with
the following:
•
Sidemarker Lamps
•
Taillamps
•
License Plate Lamps
•
Roof Marker Lamps
•
Instrument Panel Lights
187