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.

14W is listed, but the option does not seem to work

Interior & Comfort · 2013 GMC Canyon · 1,189 views · 2 replies Solved

14W — Vinyl interior trim: Gray. This code identifies the factory upholstery material, color combination, or interior trim specification. Browse RPO codes →

Brandon T. Dec 13, 2024 · Wisconsin

The equipment report for my 2013 GMC Canyon lists 14W: “Vinyl interior trim: Gray. This code identifies the factory upholstery material, color combination, or interior trim specification” I cannot find or activate the feature. Could this be a production deletion, a market-specific code, or a component that has been replaced?

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2 replies

Andrew H. Dec 15, 2024

A window sticker is helpful for customer-facing option names, while the build sheet is usually more detailed. If they disagree, the vehicle-specific dealer equipment list can help connect the sales name to 14W.

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Adam H. Dec 19, 2024 Accepted answer

If you are documenting the vehicle, save both the original wording and the readable explanation. That preserves the factory terminology while making the record understandable later.

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#gm
#rpo
#interior-comfort
#14w