See also:

How OnStar® Service Works
In order to provide you with OnStar® services, your vehicle’s OnStar® system has the capability of recording and transmitting vehicle information. This information is automatically sent to an ...

Using the Re-dial Command
1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. After the tone, say “Re-dial”. The system responds with “Re-dial using <phone name>� ...

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 info ...