Hummer 2003 H2 Owner's Manual page 206

Using RDS
Your audio system is equipped with a Radio Data
System (RDS). RDS features are available for use
only on FM stations that broadcast RDS information.
Using this system, the radio can do the following:
D
Seek to stations broadcasting the selected type
of programming,
D
receive announcements concerning local and
national emergencies,
D
display messages from radio stations, and
D
seek to stations with traffic announcements.
This system relies upon receiving specific information
from these stations and will only work when the
information is available. In rare cases, a radio station
may broadcast incorrect information that will cause the
radio features to work improperly. If this happens,
contact the radio station.
While you are tuned to an RDS station, the station name
or the call letters will appear on the display, instead of
the frequency. RDS stations may also provide the time
of day, a program type (PTY) for current programming
and the name of the program being broadcast.
3-14
DISP (Display): Press this knob to change what appears
on the display while using RDS. The display options are
station name, RDS station frequency, PTY and the name
of the program (if available). Pressing and holding this
knob will activate the RDS default display.
Finding RDS Stations
-
P TYPE LIST (Program Type): Turn this knob to
select the program type (PTY) you want to listen to.
TYPE and a PTY will appear on the display.
SEEK TYPE: Press this button to seek to the first RDS
broadcaster of the selected program type. If the radio
cannot find the desired program type, NONE will appear
on the display and the radio will return to the last station
you were listening to.
A "
SEEK : Press one of the arrows to find radio
stations for the PTY that you want to listen to. The last
PTY selected will be used for seek or scan. If a station
with the selected PTY is not found, NONE will appear
on the display.