Every GM vehicle is built to a specific list of RPO codes: three-character codes identifying each option, package, and module installed at the factory. They are the definitive record of how your vehicle was actually configured, not a guess based on year and trim.
For our products, that matters more than it does most places. Whether a cluster upgrade, infotainment screen, or CarPlay retrofit fits your vehicle depends on which radio and cluster GM actually installed, and two identical-looking trucks from the same year can differ. Your RPO list tells you exactly what you have.
RPO Code Lookup
How it works
- Enter your VIN. All 17 characters, from your door jamb sticker or registration.
- Get your code list. Every option code your vehicle was built with.
- Check it against the product you are considering. Our listings name the RPO codes they work with.
Using your codes to check fitment
Our product pages list the RPO codes each kit works with. Match those against your vehicle’s list and you will know before you order, not after.
The codes that matter most for our products:
- Radio and infotainment codes — determine which screens and CarPlay upgrades apply
- Instrument cluster codes — determine which cluster upgrade kits fit
- Audio system codes — affect integration on some upgrades
How to match your codes to a product
- Run your VIN above and find the relevant codes in your list — infotainment, cluster, and audio.
- Open the product page for the upgrade you want.
- Compare the codes listed on that page against yours. If they match, the product fits your vehicle.
Not sure what a code means? Our glossary defines the infotainment, cluster, and audio codes that matter for compatibility.
What’s covered
Most Chevrolet, GMC, Buick, and Cadillac vehicles originally sold in the United States, 2022 model year and newer.
Vehicles older than 2022, vehicles built for Canada or other export markets, and some fleet or special-order builds do not have records available.
If your vehicle isn’t covered, read your codes off the vehicle
Every GM vehicle carries its own RPO list, and you can read it directly without any lookup tool. Where it lives depends on how old the vehicle is:
- 2018 and newer — scan the QR code on the driver’s door B-pillar or in the glove box with your phone’s camera. It pulls up the full digital RPO list.
- 2017 and older — find the printed SPID label, usually in the glove box, on the trunk floor, or inside the center console lid.
Our Tech Note walks through both, with photos of where to look: How to Find and Understand GM RPO Codes.
Many of our products fit vehicles well older than 2022. Once you have read the codes off your label, compare them against the codes listed on the product page the same way you would with a lookup result.
Common questions
What is an RPO code?
RPO stands for Regular Production Option. It is a three-character code identifying a specific option, package, or module installed at the factory. Your vehicle was built to a list of them, and that list is the authoritative record of its equipment.
Why do RPO codes matter for fitment?
Because year and trim are not enough. Two vehicles of the same year and model can have different radios, clusters, or audio systems depending on how they were ordered. The RPO list tells you which one you actually have, which is what determines whether a given upgrade will work.
Where do I find my VIN?
On the driver’s door jamb sticker, at the base of the windshield on the driver’s side, or on your registration and insurance documents.
Why didn’t my VIN work?
Most often the model year. Records are available for 2022 and newer vehicles. Canadian and export-market vehicles generally are not covered, and some fleet or special-order builds have no record available. You can still read the codes directly off the vehicle — see How to Find and Understand GM RPO Codes.
Does the same code mean the same thing on every vehicle?
No. GM reuses codes across model years and platforms, so one code can mean different things on different vehicles. That is why we check fitment against your specific vehicle rather than the code alone.
I have my codes. How do I know what fits?
Every product page lists the RPO codes that product is compatible with. Compare those against your own list. If a code you are unsure about comes up, our glossary explains what the infotainment, cluster, and audio codes mean.