U.S. used car warranty disputes with dealers are controlled by the FTC Used Car Rule, which requires a Buyers Guide disclosing warranty coverage such as "As Is-No Dealer Warranty," "Implied Warranties Only," or specific terms. Implied warranties apply to used cars from dealers unless a valid "As Is" sale is disclosed on the Buyers Guide, per FTC guidance. In some states, a proper "As Is-No Dealer Warranty" disclosure eliminates implied warranties. Dealer policies cannot override these disclosures.

This does not cover credit card chargebacks, financed purchase disputes, manufacturer warranties, or private sales. Start by reviewing your Buyers Guide and sales contract, then contact the dealer in writing about the issue. If unresolved, file a complaint with the FTC at ftc.gov/complaint or call 1-877-FTC-HELP.

What Controls a Used Car Warranty Dispute

The FTC Used Car Rule (16 CFR § 455.2) requires dealers to provide a Buyers Guide for each used car sold. This one-page form must state the warranty status in exact wording: "As Is-No Dealer Warranty," "Implied Warranties Only," or details of any express warranty. The guide must be printed in 100% black ink on white paper at least 11" x 7 1/4", displayed prominently on the car, and offered in English and Spanish if the sale is in Spanish. Buyers are advised to take the Buyers Guide home before signing the contract.

FTC guidance confirms implied warranties cover used cars from dealers unless the sale is "as is." A valid "As Is-No Dealer Warranty" on the Buyers Guide can eliminate implied warranties in some states. Always check your Buyers Guide first, as it sets the baseline for any dealer warranty obligations. For full details, see the FTC Dealer's Guide to the Used Car Rule and FTC's Buying a Used Car From a Dealer.

What Does Not Control Warranty Disputes

Dealer warranty policies are separate from and limited by the FTC-required Buyers Guide disclosures. A dealer cannot claim coverage beyond what the Buyers Guide states, but the absence of a warranty statement does not create one.

This process differs from credit card chargebacks or financed loan disputes, which have separate evidence and deadlines under card network or lender rules. Manufacturer warranties apply only if provided by the automaker, not the dealer. The FTC Used Car Rule covers dealer sales only, not private party transactions. State lemon laws vary and are not a federal standard.

Practical Next Steps and Escalation

Gather your Buyers Guide, sales contract, repair records or invoices, and photos or evidence of the defect. Contact the dealer in writing via certified mail, referencing the Buyers Guide warranty status and demanding repair or other relief under the stated terms.

If the dealer does not resolve the issue, file a complaint with the FTC at ftc.gov/complaint or call 1-877-FTC-HELP for information and potential enforcement. Check your state Attorney General or DMV site for local options. For example, in New York, Vehicle and Traffic Law §417 provides a warranty of serviceability for certain used cars, with small claims court available for purchases ≤$5,000 (NY AG Used Car Lemon Law).

Evidence Checklist:

• Buyers Guide (warranty disclosure)
• Signed sales contract
• Repair attempts/records
• Photos/videos of defect
• Dealer correspondence

FAQ

Does "As Is" mean no warranty at all?
In some states, a proper "As Is-No Dealer Warranty" on the Buyers Guide eliminates implied warranties (FTC guidance). Review your copy for the exact disclosure.

What if the dealer did not provide a Buyers Guide?
That violates the FTC Used Car Rule (16 CFR § 455.2); report it to the FTC at ftc.gov/complaint.

Can I use lemon laws for used cars?
State-specific; for example, New York has a warranty of serviceability under Vehicle §417. Search your state AG site.

Does this apply to private sales?
No, the FTC Used Car Rule applies only to dealer sales.