You can push the OnStar button and have the rep run a diagnostic.
You can run to Autozone, Advanced Auto, O'Reilly, etc etc and they'll pull the code
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Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)
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