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:
Towing the Vehicle
Notice: To avoid damage, the
disabled vehicle should be
towed with all four wheels off
the ground. Care must be taken
with vehicles that have low
ground clearance and/or special
equipment. ...
Brake Fluid
The brake master cylinder reservoir is filled with DOT 3 brake fluid. See Engine
Compartment Overview for the location of the reservoir.
There are only two reasons why the brake fluid ...
How to Check Lubricant
To get an accurate reading, the vehicle should be on a level surface.
For Two-Wheel-Drive vehicles, the proper level is from 15mm to 40mm (0.6
in to 1.6 in) below the bottom of the filler plu ...