Unable to Connect to OnStar Message
If there is limited cellular coverage
or the cellular network has reached
maximum capacity, this message
may come on. Push 
to try the
call again or try again after driving a
few miles into another cellular area.
See also:
Adding Equipment to Your Airbag-Equipped Vehicle
Q: Is there anything I might add to the front
or sides of the vehicle that could keep the
airbags from working properly?
A: Yes. If you add things that change your
vehicle’s frame, bumper system ...
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted to
change the PIN the first time when
speaking with an Advi ...
Under the Hood
In all but the Ultra models, a standard 185-hp, 3.4-liter V-6 teams with a
four-speed-automatic transmission. The Rendezvous Ultra gets a 245-hp, 3.6-liter
V-6; this engine is optional in the CXL. ...