See also:

If the Off Indicator Is Lit for an Adult-Size Occupant
If a person of adult size is sitting in the front outboard passenger seat, but the off indicator is lit, it could be because that person is not sitting properly in the seat. Use the following st ...

Cellular and GPS Antennas
Avoid placing items over or near the antenna to prevent blocking cellular and GPS signal reception. Cellular reception is required for OnStar to send remote signals to the vehicle. ...

Three-Way Calling
Three-way calling must be supported on the Bluetooth phone and enabled by the wireless service carrier. 1. While on a call, press . The system responds with “Ready,” followed by a tone. 2. Say ...