OnStar

See also:

When to Inspect the Engine AirCleaner/Filter
Inspect the air cleaner/filter at the Maintenance II intervals and replace at the first oil change after each 50,000 mile (83 000 km) interval. If you are driving in dusty/dirty conditions, inspec ...

Sensors
The solar sensor, located on top of the instrument panel near the windshield, monitors the solar heat. The climate control system uses the sensor information to adjust the temperature, fan speed, ...

How to Reset the Engine Oil LifeSystem
The Engine Oil Life System calculates when to change your engine oil and filter based on vehicle use. Anytime your oil is changed, reset the system so it can calculate when the next oil change is ...