Summary. Three parts: buy carefully, document at the service drive, and escalate in the right order.

1. Before the dealership

  • Get a financing pre-approval from your own credit union or bank.
  • Decide your out-the-door number — price plus tax, title, and fees — and write it down.
  • Research the model's known problems, service bulletins, and recall history.
  • Decide separately what your trade-in is worth (check independent valuations).

2. At the dealership

  • Photograph the Buyers Guide on the window before anything else — it controls over contrary contract terms.
  • Run the VIN through the national title information system and a commercial history report.
  • Check for open recalls by VIN. Recall repairs must be free regardless of warranty.
  • Get an independent pre-purchase inspection by a mechanic you chose. A refusal is an answer.
  • Negotiate the price alone, then the trade-in alone, then financing alone.
  • Never negotiate a monthly payment.
  • Get any verbal representation about accident history, prior use, or condition in writing.

3. In the finance office

  • Decline every add-on on the first pass — service contract, gap, paint, etching.
  • Read the itemization of the amount financed line by line against the agreed price.
  • Check the APR and the term, not the payment.
  • Never sign a document with blank spaces — fill them or strike and initial.
  • Photograph every page you sign before leaving.
  • Do not take delivery on a conditional contract.
  • Do not surrender the trade-in title until financing is unconditionally final.
  • Look for an arbitration opt-out — often 30 days, in writing. Use it.
  • Take the Buyers Guide with you.

4. When you get home

  • File in one folder: purchase contract; retail installment contract; Buyers Guide; window sticker; the advertisement; financing disclosures; photographs.
  • Calendar the lemon law presumption period end date for your state.
  • Calendar the add-on cancellation window if you bought any.
  • Confirm the lender and the first payment date in writing.

5. Every service visit

  • Before going: look up technical service bulletins for the symptom; check recalls.
  • Write out the symptom precisely: what, when, how often, at what speed or temperature, and whether anyone was endangered.
  • Read the repair order before signing and correct the complaint wording if it does not match what you said.
  • Confirm the mileage is recorded.
  • Ask: "Is there a service bulletin or customer satisfaction program covering this?"
  • Get a copy of the completed repair order before leaving, showing complaint, cause, correction, parts, dates in and out, mileage.
  • Log: date, mileage, symptom, who you spoke to, days out of service, and out-of-pocket costs.
  • Use the same words for the defect every visit.
  • For intermittent faults: take a timestamped video.

6. Escalating within the dealership and manufacturer

  • Escalate to the service manager, then the general manager, in writing.
  • Call the manufacturer's customer assistance line; get a case number.
  • Request a field service engineer — they exist and are dispatched on request.
  • Request a loaner or rental; keep receipts if you pay.
  • Count cumulative out-of-service days — 30 triggers the presumption in many states.

7. The written notice (the step most claims fail on)

  • Trigger: three repair attempts for the same defect, or one or two for a safety-related defect, or 30 cumulative days out of service.
  • Send to the manufacturer, at the address in the owner's manual or warranty booklet — not the dealer.
  • Certified mail, return receipt. Keep the receipt.
  • Include: purchase details; the defect; a table of every repair attempt; total days out of service; a sentence on substantial impairment of use, value, or safety; a demand for repurchase or replacement; and all repair orders.
  • Check whether your state requires manufacturer arbitration first.

8. Revocation against the dealer (in parallel)

  • Applies to used cars that lemon laws often do not reach.
  • Confirm the elements: substantial impairment of value; acceptance induced by difficulty of discovery or by assurances, or on the assumption of cure; revocation within a reasonable time; notice to the seller.
  • Send a written revocation letter demanding the purchase price, down payment, trade-in allowance, taxes, fees, payments made, and incidental and consequential damages.
  • State that you are holding the vehicle for the seller and minimizing use.
  • Copy the lender.

9. The lender — the Holder Rule

  • Locate the notice in your retail installment contract stating that any holder is subject to all claims and defenses against the seller.
  • Send the lender copies of every demand, certified.
  • Assert the claims explicitly and in writing.
  • Do not simply stop paying — get advice first.
  • If sued for a deficiency, raise the claims as defenses and counterclaims.

10. Finance office refunds

  • Cancel the service contract in writing (often full refund in a short window, prorated after).
  • Cancel gap insurance — refundable, and required to be refunded on early payoff.
  • Cancel paint, fabric, etching products.
  • Write to both the dealer and the administrator named on each contract.
  • Demand written confirmation that the refund was applied to loan principal.

11. If the dealer says financing fell through

  • Do not sign a new contract that day.
  • Read the original contract for a financing condition and any deadline.
  • Demand return of the trade-in or its actual value, plus the down payment.
  • Put everything in writing the same day.
  • Complain to the dealer licensing board and the attorney general.
  • Ask, in writing, what legal authority they claim if they demand the car back.

12. Complaints

  • State motor vehicle dealer board / licensing agency — the most effective and most underused.
  • State attorney general consumer protection division.
  • Manufacturer customer assistance, then in writing.
  • National highway safety agency for safety defects.
  • Consumer Financial Protection Bureau for financing, servicing, and credit reporting.
  • Federal Trade Commission for advertising and Used Car Rule violations.
  • Attach exhibits to every complaint: Buyers Guide, contract, repair orders, advertisement.

13. If repossessed

  • Was there a breach of the peace (broken lock, closed garage, objection at the scene)?
  • Was the notice of intended disposition adequate in content and timing?
  • Was the sale commercially reasonable?
  • Never ignore a deficiency lawsuit — raise fraud and warranty claims as defenses.

14. Small claims and counsel

  • Check the jurisdictional limit and whether your arbitration clause preserves small claims.
  • Prepare: a one-page chronology; contract; Buyers Guide; advertisement; repair orders; independent mechanic's written assessment; photographs; the damage calculation. Three copies of everything.
  • Call a lawyer if: the vehicle is unsafe; the amount is significant; the manufacturer refused after proper notice; odometer or title fraud is involved; or a deficiency suit was filed.
  • Note that attorney's fees shift to a prevailing consumer under Magnuson-Moss, the odometer statute, and most state statutes.

Related documents

Educational only, not legal advice. Lemon laws and deceptive practices statutes are state law and vary. Send the manufacturer notice early — it costs nothing and preserves everything.