OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationInstrument Panel
Air Vents on page 8-3.
Exterior Lamp Controls on page 6-1.
Horn on page 5-2.
Instrument Cluster on page 5-8.
Windshield Wiper/Washer on page 5-3.
Infotainment on page 7-1.
Information Display.
Hazard Warning Flashers on page 6-3.
Instrument Panel Illumination Control on page 6 ...
Hands-Free Phone
General Information without Touchscreen
To use the hands-free phone on vehicles
without a touchscreen radio, press ,
select Onstar Hands-Free Calling, then enter the desired number.
General Information with Touchscreen
Vehicles with a Hands-Free Phone system can use a Bluetooth-capable cell p ...
Service Vehicle Soon Light
For vehicles with this light, it
comes on if a condition exists that may require the vehicle to be taken in for service.
If the light comes on, take the vehicle to your dealer for service as soon as
possible.
Owner Manual Indicator
This symbol is shown when you need
to see the owner manual ...