Potential Issues
Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.
See also:
Recommended Fluids and Lubricants
Usage
Fluid/Lubrican
Engine Oil
The engine requires engine oil approved to the dexos specification.
Oils meeting this specification can be identified with the dexos
cer ...
Footnotes — Maintenance Schedule Additional Required Services — Severe
a) Check all fuel and vapor lines and hoses for proper hook-up, routing, and
condition. Check that the purge valve, if the vehicle has one, works properly. Replace
as needed.
b) Or every four yea ...
California Fuel Requirements
If the vehicle is certified to meet
California Emissions Standards, it is
designed to operate on fuels that
meet California specifications. See
the underhood emission control
label. If this ...