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:
Receiving a Call
When an incoming call is received,
the audio system mutes and a ring
tone is heard in the vehicle.
• Press to answer the call.
• Press to ignore a call. ...
Radio Messages
CAL ERR (Calibration Error): The audio system
has been calibrated for your vehicle from the
factory. If CAL ERR displays, it means that the
radio has not been configured properly for
the vehicle a ...
LDW Error Message
SERVICE LANE DEPARTURE SYSTEM: This message
may appear in the DIC to indicate that LDW is not
working properly. If this message remains on after
continued driving, the system needs service. Take ...