Maryland’s lemon law provides strong protection for consumers who purchase defective new vehicles. The law covers not only new vehicles but also demonstrators and leased vehicles, making it one of the broadest lemon law protections available. With an 18-month or 18,000-mile coverage period and a requirement of only four repair attempts or 30 days out of service, Maryland gives consumers meaningful remedies for defective purchases. If a vehicle qualifies as a lemon, you can pursue relief through manufacturer arbitration or the courts, with potential recovery of attorney fees if you prevail.

Maryland recognizes that vehicle defects create significant inconvenience and financial burden for consumers. The law is designed to hold manufacturers accountable for defective products and to ensure that Maryland consumers can purchase vehicles with confidence. If your vehicle qualifies as a lemon, you have the right to a refund or replacement vehicle at no cost, plus recovery of attorney fees and court costs if you pursue litigation.

Maryland Lemon Law: Key Facts

Aspect	Details
Statute	MD Code, Commercial Law § 14-1501 et seq.
Coverage	New vehicles, demonstrators, leases
Mileage/Time Limit	First 18 months or 18,000 miles (whichever comes first)
Repair Attempts Required	4 attempts for same defect OR 30 days out of service
Arbitration Required First?	If offered and certified by manufacturer
Attorney Fees	Yes — recoverable if consumer prevails
Enforcement Agency	Maryland Attorney General (Consumer Protection Division)

What Qualifies as a Lemon in Maryland

A vehicle qualifies as a lemon in Maryland if it has a defect that substantially impairs its use, value, or safety, occurring within the first 18 months or 18,000 miles of ownership. The manufacturer must have had at least 4 attempts to repair the same defect, or the vehicle must have been out of service for 30 cumulative days during the coverage period. Maryland’s lemon law is notably broad in coverage, protecting not only purchased new vehicles but also demonstrators (vehicles used for dealer promotions) and leased vehicles.

The defect must be reported to the manufacturer or authorized dealer during the warranty period to qualify for protection. Safety-related defects and defects affecting the vehicle’s primary function are of particular concern under Maryland law. The law recognizes that manufacturers should stand behind their products and that repeated failed repair attempts constitute a breach of the warranty obligation.

How to Document Your Lemon Claim

Create a comprehensive service history file containing the original purchase agreement, window sticker, warranty documentation, and all repair orders. For each service visit, record the date, vehicle mileage, specific defect reported, name of service facility, repair order number, detailed description of work performed, parts replaced, and whether the defect recurred. Calculate the total cumulative days the vehicle was out of service for repairs. Keep copies of all communications with the manufacturer and dealer—emails, letters, phone call notes with dates and names of representatives. Document any incidental expenses (rental cars, towing, parts). Organize all materials chronologically for easy presentation.

How to File a Lemon Law Claim in Maryland

Step 1 — Send Written Notice to the Manufacturer

Prepare a certified letter to the vehicle manufacturer’s designated representative, stating that your vehicle is a lemon under MD Code § 14-1501. Include the VIN, purchase date, current mileage, and detailed descriptions of all defects and repair attempts with dates and service facility information. Calculate and state the total cumulative days the vehicle was out of service. This formal notice initiates the lemon law process and gives the manufacturer a final opportunity to resolve the issue. Send via certified mail with return receipt and retain copies.

Step 2 — Attempt Manufacturer Arbitration (If Required)

If the manufacturer offers certified arbitration, Maryland law requires you to pursue it before filing a lawsuit. Arbitration is typically faster and less costly than litigation. Present all repair documentation to the arbitrator and explain why your vehicle qualifies as a lemon. If the arbitrator finds in your favor, the manufacturer must provide a refund or replacement vehicle. If arbitration is unavailable or not certified, you may proceed directly to litigation.

Step 3 — File a Lawsuit

If arbitration is not offered, not certified, or you’re unsatisfied with the result, you can file a civil action in the appropriate Maryland court. Maryland law allows prevailing consumers to recover the full purchase price (or lease value), replacement vehicle costs, incidental damages, attorney fees, and court costs. Many Maryland attorneys will represent you on a contingency basis given the availability of attorney fee recovery. You may also file a complaint with the Maryland Attorney General’s office.

Real Situations in Maryland

A Baltimore resident purchased a new Honda Accord that developed persistent transmission problems at 8,000 miles. The owner returned to the dealer four times over 16 months for transmission service, fluid replacement, and software updates, but the transmission hesitation returned each time. After the fourth repair attempt failed, the owner sent a lemon law notice to Honda. The manufacturer offered a full purchase price refund, which the consumer accepted without requiring arbitration or litigation.

A Rockville case involved a new Chevrolet truck that spent 32 cumulative days in the service department for various defects—transmission lag, air conditioning failure, and electrical problems affecting different systems. Although no single defect triggered four repair attempts, the total out-of-service days exceeded Maryland’s 30-day threshold. The manufacturer offered a replacement truck of equal or greater value to avoid arbitration and litigation costs, which the consumer accepted.

A Silver Spring consumer purchased a new Toyota that was used as a demonstrator before sale. The vehicle developed engine knock within weeks of purchase. The buyer brought it to the dealer four times over three months for engine diagnostics and repair attempts. After the fourth unsuccessful repair, the consumer invoked Maryland’s lemon law. The manufacturer authorized a full refund of the demonstrator vehicle purchase price, recognizing Maryland’s broad coverage of demonstrators and allowing the consumer to purchase a different vehicle.

Common Mistakes Maryland Lemon Law Buyers Make

Neglecting to document demonstrator vehicle status: If you purchased a demonstrator vehicle (a new car used for dealer promotions), be sure to clearly document this status. Maryland’s lemon law covers demonstrators, but you must identify your vehicle as such when filing your claim to access these protections.
Not calculating cumulative out-of-service days accurately: Maryland’s 30-day threshold can be your path to relief if repair attempts are approaching four. Keep careful track of every day the vehicle was unavailable for driving due to repairs, including days waiting for parts or service appointments.
Overlooking the 18-month/18,000-mile deadline: Maryland’s coverage period is finite. If you experience problems, document them immediately and don’t delay in pursuing your claim. Once you exceed this deadline, your lemon law protection expires, and you lose your legal remedies.

This article is for informational purposes only and does not constitute legal advice. Last reviewed: March 2026.

Maryland Lemon Law: What Qualifies and How to Get a Refund or Replacement (2026)