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The Sticker That Overrides Your Sales Contract

The Buyers Guide in a used car window is a federal document, and what it says beats anything contrary in the contract. How to read it before you sign.

A line of cars parked side by side in a lot
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The paper taped inside the window of every used car on a dealer’s lot looks like decoration. It is the most powerful document in the transaction, and almost nobody reads it before the negotiation rather than after.

The Federal Trade Commission’s Used Car Rule requires dealers who sell more than five used vehicles in a twelve-month period to display a Buyers Guide in every used vehicle offered for sale, posted conspicuously and visible from outside the car. Banks, lessors selling to their own lessees and a few other categories are exempt. The rule applies everywhere except Maine and Wisconsin, which run comparable state rules of their own.

What makes it powerful

Two features do the work.

It becomes part of the contract. The FTC states that the information in the Buyers Guide becomes part of the sales contract and overrides any contrary provisions in that contract. If the Guide says the dealer will pay half of the repair cost on the powertrain for 30 days, a line in the contract saying otherwise does not hold.

You get a copy at the sale. The dealer must give you the Guide, or a copy of it, at the time of sale, and it must state the final negotiated warranty coverage accurately. If it does not match what you agreed, that is the moment to fix it, not after you drive away.

Paper stickers displayed in the corner of a yellow car windscreen
The Buyers Guide must be conspicuous and visible from outside the vehicle. If it is not there at all, that tells you something before you speak to anyone.

What is on it

  • The vehicle’s make, model, model year and VIN.
  • Whether the car is offered with a warranty or as is, with a box ticked.
  • If there is a warranty: which systems are covered, for how long, and what percentage of repair costs the dealer will pay.
  • The dealer’s name and address, and who to contact with complaints.
  • A list of major mechanical and electrical systems and some of the problems that can occur with them.
  • The warning that spoken promises are difficult to enforce, with the instruction to get all promises in writing.
  • Where to get a vehicle history report and check for safety recalls.
  • Advice to have the car inspected by an independent mechanic before buying.

“As Is” means what it says

If the box marked As Is - No Dealer Warranty is ticked, the dealer assumes no responsibility for repairs after you take the car, in states that permit it. Maine and Wisconsin prohibit that option under their own rules, and several other states require particular language or extra documents before implied warranties can be disclaimed.

That last point matters. In a sale that is not “as is”, implied warranties may apply automatically under state law, including the warranty of merchantability, which the FTC describes as a promise that the car will do what it is supposed to do: it will run. Coverage can last up to four years depending on your state.

Worth knowing

If the salesperson tells you they will “take care of” a repair, that promise needs to be written on the Buyers Guide, not on a business card or in a text message. The Guide is the document that becomes part of the contract. The FTC’s advice is blunt: get all promises in writing.

If the deal is in Spanish

Where the transaction is conducted in Spanish, the dealer must post the Spanish-language Buyers Guide on the vehicle before displaying or offering it for sale. A negotiation conducted entirely in Spanish followed by English-only paperwork is not compliance.

What it does not do

The Buyers Guide is a disclosure, not an inspection. It says nothing about the car’s condition, its accident history, or whether the odometer reading is honest. The FTC is explicit that a vehicle history report is not a substitute for an inspection either: it may list accidents and flood damage, but typically it will not list mechanical problems.

So the Guide answers one question well, which is who is responsible if something breaks after the sale. The other questions need a history report and an independent mechanic, in that order.

How to use it in the negotiation

  1. Read it before the test drive, not in the finance office. It tells you whether there is a warranty before you are emotionally committed.
  2. Photograph it, with the VIN visible, when you arrive.
  3. Compare the ticked box to what you are being told. A salesperson describing a “dealer-backed guarantee” beside a ticked As Is box is a contradiction you should resolve immediately.
  4. Get every promise written onto the Guide before signing anything.
  5. Take the copy home with the contract and keep it. It is part of the agreement.

Dealers who break the rule face FTC enforcement with penalties of up to about $53,000 per violation, a figure the Commission adjusts each year. That is worth knowing for one reason: a missing Buyers Guide is not a technicality that the lot has overlooked, and it says something about the rest of their paperwork.

The pre-purchase inspection guide explains the independent condition check. Before agreeing to financing, the out-the-door price guide helps separate the vehicle price from dealer charges.

Questions people ask

Does the Buyers Guide override the sales contract?

Yes. The FTC states that the information in the Buyers Guide becomes part of the sales contract and overrides any contrary provisions in that contract. The dealer must also give you the Guide at the time of sale, stating the final negotiated warranty coverage.

What does As Is mean when buying a used car?

That the dealer takes no responsibility for repairs after the sale, where state law allows it. Maine and Wisconsin prohibit as-is sales under their own rules, and some states require specific language before implied warranties can be disclaimed.

Do private sellers have to provide a Buyers Guide?

No. The Used Car Rule applies to dealers who sell more than five used vehicles in a twelve-month period, not to private individuals selling their own car. That is one of several reasons a private sale needs a more thorough inspection.

What if the dealer negotiated with me in Spanish?

The dealer must use the Spanish-language Buyers Guide, posted on the vehicle before it is displayed or offered for sale. Paperwork in English after a Spanish negotiation does not meet the rule.

Where these figures come from

  1. Dealer's Guide to the Used Car Rule Federal Trade Commission · ftc.gov
  2. Buying a Used Car From a Dealer Federal Trade Commission · consumer.ftc.gov
  3. Used Car Rule Federal Trade Commission · ftc.gov

Figures last checked September 2026.

Researched and written by

Miles & Keys Editorial

Every figure in this guide comes from a published source, linked above, and was checked before publication. No affiliate links and no sponsored posts.

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