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:
Following Distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving the vehicle without a trailer.
This can help to avoid situations
that require heavy braking and
sudden turns. ...
Units
Select to display English or
metric units of measure.
Press the set/reset button to
select when units is displayed. ...
Universal Remote System Operation
Using the Universal Remote System
Press and hold the appropriate Universal Remote system button for at least
half of a second.
The indicator light will come on while the signal is being transmi ...