C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
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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