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, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationEngine Cooling System Messages
A/C OFF DUE TO HIGH ENGINE TEMP
This message displays when the engine coolant becomes hotter than the normal
operating temperature.
To avoid added strain on a hot engine, the air conditioning compressor automatically
turns off.
When the coolant temperature returns to normal, the air condition ...
Radio Data System (RDS)
RDS features are available for use only on FM stations that broadcast RDS information.
With RDS, the radio can:
• Seek to stations broadcasting the selected type of programming.
• Receive announcements concerning local and national emergencies.
• Display messages from radio stations.
Thi ...
Steering Wheel Controls
Depending on the vehicle options, some audio functions can be controlled through
the steering wheel controls.
(Push to Talk): Press to interact
with Bluetooth or voice recognition.
(Mute/End Call): Press to decline
an incoming call, or to end a current call. Press to silence the vehicle ...