Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Windows
WARNING
Leaving children, helpless adults, or pets in a vehicle with the windows closed
is dangerous. They can be overcome by the extreme heat and suffer permanent
injuries or even death from heat ...
When the System Does Not Seem to Work Properly
The rear vision camera system may not work properly or display a clear image
if:
- The RVC is turned off.
See “Turning the Rear Vision Camera System On or Off” earlier in this section.
- It ...
Fuel E85 (85% Ethanol)
Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded
gasoline or ethanol fuel containing up to 85% ethanol (E85). For all other vehicles,
use only the unleaded gasolin ...