Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Adaptive Forward Lighting (AFL) Light
This light should come on briefly as the vehicle is started. If it does not
come on, have the vehicle serviced by your dealer.
This light comes on solid when there is a problem with the Adapti ...
Approach Lighting
This feature allows you to select
whether or not to have the exterior
lights turn on briefly during low light
periods after unlocking the vehicle
using the Remote Keyless Entry
(RKE) or keyl ...
SBZA Detection Zones
The SBZA sensor covers a zone of approximately one lane over from both sides
of the vehicle, 3.5m (11 ft). This zone starts at each side mirror and goes back
approximately 5.0m(16 ft). The heigh ...