Oregon Lemon Law: Coverage, Notice, and Refund Rights

Under the Oregon Lemon Law, if the manufacturer of your new vehicle can’t fix a defect that substantially impairs its use, value, or safety after a reasonable number of tries, you are entitled to a replacement vehicle or a full refund that includes taxes, registration, finance charges, and other collateral costs. The rules are set out in ORS 646A.400 through 646A.418, and they define exactly how many repair attempts or days out of service trigger your right to relief.

Which Vehicles and Buyers Are Covered

The law covers new passenger motor vehicles bought or leased in Oregon, plus vehicles bought elsewhere and registered here. A consumer is the person who bought or leased the vehicle for personal, family, or household use. If that person transfers the vehicle while the manufacturer’s warranty is still active, the new owner inherits the same protection.¹

Used vehicles are not covered. If you bought pre-owned, the Lemon Law won’t help, though Oregon’s general consumer protection statutes and the federal Magnuson-Moss Warranty Act may offer other options. Motor homes are covered, but with carve-outs explained further down. Trailers, campers, and vans built by manufacturers that primarily make something other than motor homes fall outside the statute.

The Two-Year, 24,000-Mile Window

You have two years from the date the vehicle was delivered to you, or 24,000 miles on the odometer, whichever comes first, to report any defect you want to claim.² The clock starts on delivery, not on the date you signed the paperwork. A repair that begins inside the window but runs past it still counts.

When a Vehicle Qualifies as a Lemon

A defect only triggers the Lemon Law if it substantially impairs the vehicle’s use, market value, or safety. Engine, transmission, brake, steering, and electrical problems usually clear that bar. A minor interior rattle or a small cosmetic flaw probably doesn’t, unless it’s persistent enough to visibly cut into resale value.

Oregon law presumes the manufacturer has had a reasonable number of chances to fix the problem if any of the following happens during the rights period:³

The dealer has tried to fix the same defect at least three times and it still isn’t fixed.
The vehicle has been out of service for repairs for a cumulative 30 or more calendar days (60 days for motor homes).
A defect likely to cause death or serious injury has been repaired at least once, the manufacturer or dealer has made a final attempt, and the problem remains.

Hitting one of these thresholds doesn’t automatically win the case. It shifts the burden to the manufacturer to show the vehicle isn’t a lemon. You can still bring a claim without meeting a threshold, but you’ll have to prove on your own that the manufacturer had a reasonable chance to fix the defect and failed.

Written Notice to the Manufacturer

Before the presumption works in your favor, the manufacturer must receive direct written notice from you about the defect and get a chance to repair it.² Skip this step and the presumption doesn’t apply, which weakens your case considerably.³

The statute requires direct written notification but doesn’t specify the method. Certified mail with a return receipt is the practical choice because it proves delivery. Include the VIN, a clear description of each defect, and a summary of every repair attempt so far. Send it to the manufacturer at the address in your owner’s manual or warranty booklet, not just the dealership.

Documentation to Keep

Lemon law claims turn on paperwork. The strongest legal position goes nowhere if you can’t show the car was in the shop or that you reported the problem. Build a file with:

Every repair order and invoice, showing drop-off date, pickup date, mileage, and the complaint as recorded.
Your purchase or lease agreement, which anchors any refund calculation.
All written correspondence with the manufacturer or dealer, including your formal notice.
A personal log of phone calls, service-advisor conversations, and dates the defect appeared.

Dealers sometimes write vague repair orders. “Customer states noise” tells an arbitrator nothing useful. Describe the problem specifically when you drop the car off and ask that your exact wording be written on the order. If the advisor softens it, ask for a correction before you sign.

Arbitration Before Court

If the manufacturer runs an informal dispute settlement program that complies with the federal standards in 16 CFR Part 703, and has told you about it, you have to go through that program before pursuing the statutory remedy.⁴ Common programs include the BBB Auto Line and the National Center for Dispute Settlement.

The decision binds the manufacturer but not you. If the arbitrator rules for you, the manufacturer has to comply. If you don’t like the result, you can reject it and go to court. If the manufacturer doesn’t participate in a qualifying program, or never notified you about one, you can skip arbitration and go straight to the statutory remedies.⁴

Replacement or Refund

When the manufacturer can’t fix the defect after a reasonable number of attempts, the law requires one of two remedies: a replacement vehicle or a full refund.⁵ A replacement must be a new vehicle.

A refund covers the full purchase or lease price plus collateral charges. Oregon defines collateral charges broadly to include sales and property taxes, registration and title fees, finance charges, prepayment penalties, undercoating, dealer-installed options, and aftermarket items you bought within 20 days of delivery.¹

The Usage Deduction

The manufacturer can subtract a reasonable allowance for use from your refund. For passenger vehicles other than motorcycles and motor homes, the formula is:⁵

(Vehicle mileage × (purchase price + collateral charges)) ÷ 120,000

Mileage here means the odometer reading when the manufacturer actually replaces the car or issues the refund, not when you first brought it in. Miles accumulated while the car sat at the shop for repairs get subtracted, so you aren’t charged for miles you didn’t drive. On a $32,000 vehicle including collateral charges, 8,000 miles at the time of refund would produce a deduction of roughly $2,133.

Motor Homes

Motor homes are covered, with two differences. The out-of-service threshold is 60 calendar days instead of 30.³ And living-facility components are excluded. That means problems with the flooring, plumbing fixtures, appliances, water heater, cabinets, countertops, furniture, generators, roof-mounted HVAC units, and audio-visual equipment are not covered. The law reaches only the motorized portion: chassis, engine, drivetrain, and related mechanical systems.

Going to Court

If arbitration doesn’t resolve the claim, or no qualifying program applies, you can sue. A prevailing consumer can be awarded reasonable attorney fees, expert witness fees, and costs.⁶ That fee-shifting rule is what makes it economically realistic for attorneys to take these cases.

If the court finds the manufacturer did not act in good faith, it can award up to three times your actual damages, capped at $50,000 above the replacement or refund remedy.⁶

Defenses the Manufacturer May Raise

The manufacturer has two affirmative defenses under ORS 646A.404. First, that the defect doesn’t actually substantially impair use, value, or safety. Second, that the problem was caused by the consumer’s own abuse, neglect, or unauthorized modifications.⁵

The “not substantial” defense is where most fights happen. A manufacturer will argue that a rattle, a slow leak, or an intermittent electrical glitch doesn’t rise to substantial impairment. Documentation decides it. A defect that stranded you on the highway or triggered a warning that made the car undrivable is easier to prove than a noise at certain speeds. The abuse-or-modification defense is narrower and typically turns on aftermarket parts or improper maintenance that contributed to the failure.

1
Oregon State Legislature. Oregon Code 646A.400 – Definitions for ORS 646A.400 to 646A.418
2
Oregon State Legislature. Oregon Code 646A.402 – Availability of Remedy
3
Oregon State Legislature. Oregon Code 646A.406 – Presumption of Reasonable Attempt to Conform
4
Oregon State Legislature. Oregon Code 646A.408 – Use of Informal Dispute Settlement Procedure
5
Oregon State Legislature. Oregon Code 646A.404 – Consumer’s Remedies and Manufacturer’s Affirmative Defenses
6
Oregon State Legislature. Oregon Code 646A.412 – Action in Court, Damages, Attorney Fees