How do I disable Onstar on 2019 New Generation GMC Sierra
Find the module and disconnect it. Look around on the web for the location.
Yup I kind of know where it is in the Center Radio stack! However new gen console block easy access to the bottom stack screw cover between the stack and console! I guess the real question at this point is , how do you pull that cover. I just highly doubt a service person would have to remove the console . Given that would entail removing both front seats. See attached photo of lower Center stack trim Awaiting on input as I have tried trim tools with no available. Pros there a special tool to release that trim piece which wraps around the lower Center stack above the console that conceals the 2 lower Center stack torx screws.
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