When to Inspect the Engine Air Cleaner/Filter
Inspect the air cleaner/filter at the scheduled maintenance intervals and replace it at the first oil change after each 80 000 km (50,000 mi) interval. See Maintenance Schedule for more information.
If you are driving in dusty/dirty conditions, inspect the filter at each engine oil change.
See also:
OnStar®
OnStar® uses several innovative technologies and live
advisors to provide a wide range of safety, security,
navigation, diagnostics, and calling services. ...
Engine Oil Life System
The engine oil life system calculates
engine oil life based on vehicle use
and displays the CHANGE ENGINE
OIL SOON message when it is time
to change the engine oil and filter.
The oil life sy ...
Fuel System Messages
FUEL LEVEL LOW
This message displays when the vehicle is low on fuel. Refuel as soon as possible. ...