C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
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networks, and will not require an upgrade in connection with the cellular industry's transition to the digital network.
In order to verify the type of OnStar(R) Hardware in a vehicle, type the VIN into the VIN look-up tool, which is available at the OnStar(R) Online
Enrollment website within GM GlobalConnect (for U.S. dealers) or InfoNet (for Canadian dealers).
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