Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
See also:
XM Categories (Radio with CD)
XM stations are organized in
categories.
Removing or Adding Categories
1. Press the CONFIG button. Turn
the Menu knob until Radio
displays. Press SELECT or
press Radio to display the radio
...
Online Owner Center
Manage your vehicle (U.S.) at
buick.com. Click on "Owners,"
then "Manage My Buick/Owners Login."
Information and services
customized for your specific
vehicle — all in o ...
Shuffle (Radio with CD/DVD/MEM)
Turn the Menu knob and set Shuffle
Songs to On or Off.
Shuffle On: Plays current tracks in
random order.
Shuffle Off: Plays current tracks in
sequential order. ...