What is a GM build sheet?

A build sheet is General Motors' own factory assembly record for a specific VIN. It lists the RPO (Regular Production Option) codes the vehicle was built with — every package, individual option, paint and trim selection, axle ratio, and equipment group — exactly as it left the plant.

Where a window sticker is written for the buyer with plain descriptions and pricing, the build sheet is the underlying code-level truth. It's the most reliable way to confirm how a used Chevrolet, Buick, Cadillac, or GMC was originally configured, long after the original paperwork is gone.

Window sticker vs. build sheet

Newer GM vehicles (roughly 2020 and later) usually have the original window sticker PDF on file — the Monroney label with standard and optional equipment, fuel economy, warranty, and the full MSRP breakdown.

When a window sticker isn't on file, this tool automatically falls back to the build sheet: the list of RPO codes with their descriptions. Either way you come away with the factory record of how the vehicle was equipped.

RPO codes explained

Every factory option on a GM vehicle has a three-character RPO code — for example a specific paint, a tow package, a sunroof, or an audio system. These codes are also printed on the label inside the glovebox or spare-tire well.

The build sheet pairs each code with a readable description, so you can translate a glovebox full of codes into the actual packages and features the vehicle carries. That makes it easy to verify a seller's claims or settle exactly which options are factory.

GM Build Sheet by VIN

Free factory build sheet & window sticker for Chevrolet, Buick, Cadillac & GMC.

Original GM factory data
Chevrolet, Buick, Cadillac & GMC

RPO Code Navigator

Browse all codes →

Pick a letter or number to see the GM RPO codes that start with it. Meanings vary by model, year, and division — your VIN's build sheet is the definitive list.

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GMBuildSheetVin.com is a free tool to pull a GM vehicle's factory build sheet or original window sticker by VIN — the RPO option codes, packages, trim, paint, and equipment it was built with — for Chevrolet, Buick, Cadillac, and GMC.

Where to find your VIN

Your VIN is a unique 17-character code. You can read it from any of these places — each gives the same number:

Base of the windshield, driver's side. Look at the lower-left corner of the glass from outside the car.
Driver's door-jamb sticker. Open the driver's door and check the frame.
Registration, insurance card, and title. Every ownership document carries the VIN.

Which GM vehicles are supported

The lookup covers GM's current brands — Chevrolet, Buick, Cadillac, and GMC. Enter the VIN and the tool retrieves the window sticker if one exists, or the RPO build sheet if it doesn't.

Coverage is best on model years where GM has the factory record on file; very old vehicles may not return data. There's no account, nothing to install, and every lookup is free.

How to look up your GM build sheet

Find your 17-character VIN, type it into the box at the top of this page, and select "Look Up Build Sheet."

The tool retrieves the original window sticker or build sheet — usually within a few seconds. If a window-sticker PDF exists you can view it inline and download a copy; otherwise the build sheet loads in its place with the RPO codes listed out.