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:
Trunk Deck Inboard Taillamp and Backup Lamp
Driver Side Shown, Passenger Side Similar
A. Backup Lamp
B. Taillamp
To replace any one of these bulbs:
1. Open the trunk.
2. Remove the push pins (A) retaining the trunk deck trim cover.
3. ...
Uniform Tire Quality Grading
Quality grades can be found
where applicable on the tire
sidewall between tread shoulder
and maximum section width. For
example: ...
Driving On Grades
Reduce speed and shift to a lower gear before
you start down a long or steep downgrade. If you
don’t shift down, you might have to use your
brakes so much that they would get hot and no
longer w ...