Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
SBZA Error Messages
The following messages may
appear on the infotainment display:
SIDE BLIND ZONE ALERT
SYSTEM OFF: This message
indicates that the driver has turned
the system off.
SIDE BLIND ZONE SYS.
UNAVA ...
Tire Rotation and Required
Services Every 12 000 km/7,500 mi
Rotate the tires, if recommended for
the vehicle, and perform the
following services. See Tire
Rotation.
• Check engine oil level and oil
life percentage. If needed,
change engine oil and ...
Add-On Electrical Equipment
Notice:
Do not add anything
electrical to the vehicle unless
you check with your dealer first.
Some electrical equipment can
damage the vehicle and the
damage would not be covered by
the v ...