GM Authority Newsletter
I noticed when I pressed and held the phone button, it gave me options including reprogramming hands free data but asked me for my security code. Where do I find this code?
I believe that this is your 4-digit OnStar PIN, the same one you use to call in to OnStar and when using the remote link app. If you don’t know it, hit the blue button and an advisor can reset it for you.
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