See also:

Rear Safety Belt Comfort Guides
This vehicle may have rear shoulder belt comfort guides for the outboard passenger positions in the rear seat. If not, they are available through your dealer. The guides may provide added safety bel ...

Hands-Free Calling
1. Push . System responds: “OnStar ready.”. 2. Say “Dial.” System responds: “Please say the name or number to call.”. 3. Say the entire number without pausing, including a “1” and the area c ...

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 ...