Would you choose the 27L configuration again?

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.

Would you choose the 27L configuration again?

Exterior & Appearance · 2023 GMC Canyon · 927 views · 1 reply

27L — Secondary exterior color: Light French Blue Metallic. This code identifies the factory-applied secondary paint used in a two-tone or special paint scheme. Browse RPO codes →

Nick S. May 10, 2024 · Tennessee

I am comparing configurations and one vehicle includes 27L, described as “Secondary exterior color: Light French Blue Metallic. This code identifies the factory-applied secondary paint used in a two-tone or special paint scheme” Owners who have it, would you consider it useful and would you look for it again?

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Andrew H. May 10, 2024

The safest interpretation is the one tied to the exact VIN, model year, platform, and market. In general, 27L matches “Secondary exterior color: Light French Blue Metallic. This code identifies the factory-applied secondary paint used in a two-tone or special paint scheme” but the included hardware can vary between applications.

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