2011 Chevrolet Tahoe Owner's Manual - Page 36

1-30 In Brief OnStar service cannot work unless your 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 your 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 your 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 your 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 your vehicle, damage to important parts of your vehicle in a crash, or wireless phone network congestion or jamming. See Radio Frequency Statement on page 13‑19 for information regarding Part 15 of the Federal Communications Commission (FCC) rules and Industry Canada Standards RSS-210/220/310. www.onstar.ca (Canada), contact OnStar at 1-888-4-ONSTAR (1‐888‐466‐7827) or TTY 1‐877‐248‐2080, or push Q 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. 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.