2011 Chevrolet Silverado 1500 Regular Cab Owner's Manual - Page 42

1-36 In Brief OnStar service requires wireless communication networks and the Global Positioning System (GPS) satellite network. Not all OnStar services are available everywhere or on all vehicles at all times. OnStar service cannot work unless the vehicle is in a place where OnStar has an agreement with a wireless service provider for service in that area, and the wireless service provider has coverage, network capacity, reception, and technology compatible with OnStar service. Service involving location information about the vehicle cannot work unless GPS signals are available, unobstructed, and compatible with the OnStar hardware. The vehicle must have a working electrical system and adequate battery power for the OnStar equipment to operate. OnStar service may not work if the OnStar equipment is not properly installed or you have not maintained it even if the vehicle is in good working order and in compliance with all government regulations. If you try to add, connect, or modify any equipment or software in the vehicle, OnStar service may not work. Other problems beyond OnStar's control may prevent service to you, such as hills, tall buildings, tunnels, weather, electrical system design and architecture of the vehicle, damage to important parts of the vehicle in a crash, or wireless phone network congestion or jamming. See Radio Frequency Statement on page 13‑18 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310. Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance, Vehicle Diagnostics, Remote Door Unlock, Roadside Assistance, Turn‐by‐Turn Navigation, and Hands‐Free Calling are available on most vehicles. Not all OnStar services are available on all vehicles. For more information, see the OnStar Owner's Guide; visit www.onstar.com (U.S.) or www.onstar.ca (Canada); contact OnStar at 1-888-4-ONSTAR (1‐888‐466‐7827) or TTY 1‐877‐248‐2080; or push the Q button to speak with an OnStar Advisor 24 hours a day, seven days a week. For a full description of OnStar services and system limitations, see the OnStar Owner's Guide in the glove box. OnStar service is subject to the OnStar Terms and Conditions included in the OnStar Glove Box Kit.