What is a window sticker?

A window sticker — officially the "Monroney label" — is the printed sheet the factory attaches to the window of every new vehicle. It has been federally required on new cars in the United States since the Monroney Act of 1958, and decades later it remains the single most authoritative summary of how a particular vehicle left the assembly line.

It lays out the standard equipment, the optional equipment and packages the original buyer selected, the EPA fuel-economy ratings, the warranty terms, the percentage of U.S./Canadian parts content, and the full price breakdown — base MSRP, each individual option, the destination charge, and the grand total. That original data is exactly what lets you confirm, years later, how a used vehicle was really configured.

Window sticker vs. build sheet

The two documents describe the same factory configuration in different ways. A window sticker is written for the buyer: plain equipment descriptions, fuel-economy ratings, warranty details, and a price breakdown right down to the destination charge.

A build sheet is the factory's own assembly record — the complete list of option codes a vehicle was built with, without pricing. WindowStickerVin.com returns the window sticker whenever one is on file, and automatically falls back to the build sheet when it isn't, so you always come away with the underlying factory data either way. For a deeper comparison, see our guide on window sticker vs. build sheet.

Why check your window sticker or build sheet?

Whether you're buying a used car, selling one, arranging insurance, or just settling a curiosity, the factory record is the most reliable way to confirm exactly how a vehicle was equipped the day it was built — far more dependable than a listing description or a faded memory.

It lets you verify the trim level, the engine and drivetrain, the option packages, and individual features, and it makes it easy to tell factory-installed equipment apart from anything a dealer or previous owner added afterward. For buyers especially, it's a quick way to make sure a seller's claims actually match how the vehicle left the line.

VIN & Window Sticker Forum

80 topics · 402 replies · read-only archive

Owner-to-owner threads about decoding factory option codes across GM and FCA vehicles. Every thread here is archived reading — use the VIN lookup to pull your own build sheet.

Packages & Towing23
Exterior & Appearance21
Interior & Comfort16
Transmission & Drivetrain9
Wheels & Tires8
Engine & Fuel2
Electronics & Infotainment1

Showing 1–20 of 80 topics · page 1 of 4

Does 42B change towing, performance, or fuel economy?
Olivia S. · Jul 28, 2026 · Interior & Comfort Solved

8 replies 740 views
What does A42 mean on my 2011 Jeep Grand Cherokee build sheet?
Sofia D. · Jul 27, 2026 · Engine & Fuel

5 replies 321 views
Best way to confirm 1BD using the original build information
Mark K. · Jul 25, 2026 · Interior & Comfort

5 replies 198 views
Looking for real owner feedback on 2TR
Sofia W. · Jul 22, 2026 · Packages & Towing Solved

4 replies 637 views
Any long-term experience with the 2JX option?
Elena C. · Jul 21, 2026 · Packages & Towing

4 replies 293 views
Dealer says 2KE means something different
Jeff W. · Jul 18, 2026 · Packages & Towing

5 replies 678 views
Dealer says 21Y means something different
Ryan R. · Jul 15, 2026 · Interior & Comfort

0 replies 102 views
Retrofit question for code 5PE on a 2012 Chrysler Pacifica
Nick M. · Jul 14, 2026 · Wheels & Tires Solved

6 replies 469 views
Why do two build sheets show different codes for similar equipment?
Nick H. · Jul 10, 2026 · Interior & Comfort

2 replies 127 views
Can a window sticker confirm 2HF?
Sofia E. · Jul 5, 2026 · Packages & Towing

6 replies 347 views
Where else can I verify the 21L code?
Mike T. · Jul 5, 2026 · Exterior & Appearance Solved

2 replies 157 views
Real-world difference with the *A7 configuration
Luke M. · Jun 30, 2026 · Transmission & Drivetrain

1 replies 189 views
VIN report and dealer description disagree on 4A4
Steve W. · Jun 26, 2026 · Interior & Comfort Solved

3 replies 260 views
Retrofit question for code AEL on a 2024 Jeep Gladiator
Jordan C. · Jun 24, 2026 · Packages & Towing

7 replies 604 views
Checking 3RU before buying a used 2026 GMC Acadia
Daniel G. · Jun 24, 2026 · Exterior & Appearance

4 replies 249 views
Owners with 2JP: how has it worked for you?
Hannah W. · Jun 23, 2026 · Packages & Towing

1 replies 162 views
Real-world difference with the 12U configuration
Mike W. · Jun 18, 2026 · Exterior & Appearance Solved

7 replies 450 views
Any long-term experience with the 6N7 option?
Daniel E. · Jun 18, 2026 · Exterior & Appearance

1 replies 148 views
Can a window sticker confirm 58F?
Nick S. · Jun 16, 2026 · Wheels & Tires Solved

6 replies 511 views
Pre-purchase question about 2ZR
Evan J. · Jun 12, 2026 · Packages & Towing

3 replies 304 views