Buick LaCrosse Owner's Manual page 224

7-44 Infotainment System
The following restrictions apply
for the data stored on a USB
MP3 player or USB device:
Maximum folder structure
depth: 11 levels.
Maximum number of MP3/
WMA files that can be
displayed: 1,000
WMA with Digital Rights
Management (DRM) from online
music shops cannot be played.
WMA files can only be played
back safely if they were created
with Windows Media Player
version 8 or later.
Applicable playlist extensions
are: .m3u, .pls.
Playlist entries must be in the
form of relative paths.
The system attribute for
folders/files that contain audio
data must not be set.
To play a USB device, do one of the
following:
Connect the USB and it begins
to play.
Press the Now Playing screen
button on the Home Page, then
press the SOURCE button on
the faceplate repeatedly to cycle
through all of the available audio
source screens, until the USB
source screen is selected.
While the USB source is active, use
the following to operate USB
function:
TUNE/ (Play/Pause): Press to
start, pause, or resume play of the
current media source.
(Seek Down):
1. Press to seek to the beginning of
the current or previous track.
If the track has been playing for
less than five seconds, the
previous track plays. If playing
longer than five seconds, the
current track restarts.
2. Press and hold to reverse
quickly through playback.
3. Release to return to playing
speed. Elapsed time displays.
(Seek Up):
1. Press to seek to the next track.
2. Press and hold to advance
quickly through playback.
Release to return to playing
speed. Elapsed time displays.