LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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CTS Base, 3.6 7, AWD
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OnStar Schematics
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OnStar Schematics
WARNING:
This page is about a different car, the 2009 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: UE1
Courtesy of GENERAL MOTORS CORP.
Fig 2: Data Link Communication
Courtesy of GENERAL MOTORS CORP.