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:
New Vehicle Break-In
Follow these recommended
guidelines during the first
2 414 km(1,500 miles) of driving
this vehicle. Parts have a break-in
period and performance will be
better in the long run.
For the firs ...
Adjusting the Speakers
(Balance/Fade)
BAL/FADE (Balance/Fade):
To adjust balance or fade:
1. Press the TUNE/TONE knob
until the speaker control tabs
display.
2. Continue pressing the TUNE/
TONE knob, or press the softkey
under ...
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States
or CAN/CGSB-3.5 or 3.511 in Canada. Some gasolines contain an octane-enhancing additive
called methylcyclopentadie ...