HomeAll RepliesReply To: RPO codes Reply To: RPO codes Sponsored January 24, 2024 at 12:04 pm #797779 mo-greaseParticipant Thank you Parts Man 1. This turned out to be much better then the sticker in the glove box. Sponsored Subscribe to GM Authority For around-the-clock GM news coverage We'll send you one email per day with the latest GM news. It's totally free. First Name Last Name Email Address Subscribe via Email Leave this field empty if you're human: Sponsored