See also:

AM
The range for most AM stations is greater than for FM, especially at night. The longer range can cause station frequencies to interfere with each other. For better radio reception, most AM radio s ...

Pairing a Phone
1. Press and hold for two seconds. The system responds with “Ready” followed by a tone. 2. Say “Bluetooth”. The system responds with “Bluetooth ready” followed by a tone. 3. Say � ...

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 v ...