Save the Buyers Guide, sales contract, warranty, advertisement, and repair records. Identify the promise or contract term you believe the dealer did not meet, then ask the dealer for a specific written response. Check state protections and warranty procedures before assuming you can return the vehicle.
Read the Buyers Guide alongside the contract
The FTC says the Buyers Guide tells you whether the dealer sells the car with a warranty or “as is.” It also identifies a complaint contact. Compare the copy you received with the sales contract and any written promise to repair the vehicle. Keep all versions if the documents disagree.
Official guidance: FTC: Buying a Used Car From a Dealer.
| Record | Question it helps answer |
|---|---|
| Buyers Guide | What warranty or as-is disclosure accompanied the sale? |
| Purchase contract and add-on forms | What products and amounts did you agree to buy? |
| Advertisement and written promises | What did the dealer represent before the sale? |
| Inspection and repair reports | What symptoms or defects were documented, and when? |
A vehicle history report and a mechanical inspection answer different questions. Ask a qualified mechanic to document the actual findings rather than using a history report as proof that every mechanical system was sound.
Define the complaint before choosing a remedy
Separate a mechanical defect from an undisclosed add-on, title problem, financing dispute, or unfulfilled repair promise. You may have more than one issue, but give each its own explanation and evidence. Include the VIN, purchase date, mileage at delivery, and mileage when you noticed the problem.
- For a repair promise, identify the exact item and the written commitment.
- For an add-on dispute, compare the itemized agreement with what you approved.
- For a warranty claim, identify the covered system and follow the stated service process.
- For a title problem, save the temporary registration, purchase paperwork, and messages about delivery.
If the problem concerns a later repair shop visit, use the auto repair complaint guide as well.
Do not assume a universal three-day return right
Federal law does not require a used-car dealer to give you three days to cancel the sale. A state rule or the dealer’s written return policy may provide a right to cancel. Ask your state consumer office about the rules that apply to your purchase.
Official guidance: FTC: Buying a Used Car From a Dealer.
An “as is” label, a limited warranty, and a paid service contract are different arrangements. Read their terms before approving outside repairs or asking someone else to cover the bill. State protections may also matter. Do not stop loan payments or leave the vehicle at the dealership on the assumption that doing so cancels the transaction.
Ask the dealer to review one documented issue
A promised repair that has not happened
When I purchased vehicle VIN [VIN] on [date], the signed delivery document listed replacement of the broken window switch. I contacted the dealership on [dates] and have not received a service appointment. Please confirm how and when you will complete the promised repair. I have attached the delivery document and prior messages.
Replace the example with your actual facts. Ask for a response by a reasonable date, but recognize that your requested date does not create a legal deadline. If the vehicle needs urgent safety attention, arrange an appropriate inspection instead of waiting for a routine reply.
Keep notes of each contact, including which department responded. A salesperson’s informal assurance is harder to track than a written service appointment or coverage decision.
Escalate according to the type of dispute
For a dealer-sales dispute, start with your state consumer protection office; ask whether a dealer licensing agency handles the issue. For manufacturer-backed warranty service, follow the warranty’s escalation instructions. Some warranties specify a dispute-resolution process.
Official guidance: FTC: Buying a Used Car From a Dealer.
The general complaint guide explains how to prepare a submission. For a vehicle loan or lease complaint, the CFPB complaint page lists financial products it accepts. That route does not resolve every mechanical or dealer-sales dispute.
Save the dealer’s final written position. If the proposed remedy includes signing a release, returning the vehicle, or changing financing, understand each term before accepting.
Common questions
Can I always return a used car within three days?
No. Check your state rules and any written dealer return policy. Federal law does not create a general three-day return right for dealer car purchases.
Does every used car qualify for lemon-law relief?
No. Coverage depends on the state, vehicle, transaction, and problem. Ask your state consumer office about the rules for your purchase.
Should I send the dealer my original documents?
Keep originals. Send clear copies through a verified contact channel and retain a copy of the complete submission.
Keep going
Your next useful guide
Auto repair complaints
Compare an auto repair estimate with the invoice, document work you dispute, and prepare a complaint to the shop or your state consumer agency.
Problem guideDenied warranty claims
Compare a warranty denial with the coverage terms, proof of purchase, and repair history. Prepare a specific request for reconsideration.
Preparation toolEvidence checklist
Organize receipts, messages, dates and billing records before making a consumer complaint. Includes a checklist, evidence table and follow-up log.
Start hereComplaint guide
Learn how to prepare a consumer complaint, choose a filing destination, and follow up. Includes evidence checklists, complaint templates and topic guides.
Sources and page information
Official source links checked September 24, 2026. Requirements can change; use the relevant agency’s current instructions.
- FTC: Buying a Used Car From a Dealer
- USA.gov: state consumer protection offices
- CFPB: Submit a complaint about a financial product or service
Prepared with AI assistance. Examples and worksheets are illustrative. This is general information, not legal advice. We do not submit complaints, determine eligibility, or guarantee a result.