Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle.
See also:
Scheduling Service Appointments
When the vehicle requires warranty service, contact your dealer and request an appointment. By scheduling a service appointment and advising the service consultant of your transportation needs, your d ...
XM Messages
XL (Explicit Language
Channels): These channels, or any
others, can be blocked by request,
by calling 1-800-929-2100 in the
U.S., and 1-877-438-9677 in
Canada.
XM Updating: The encryption c ...
Doing Your Own Service Work
CAUTION:
You can be injured and your vehicle could
be damaged if you try to do service work
on a vehicle without knowing enough
about it.
• Be sure you have sufficient knowledge,
experience, ...