Under Arizona's Lemon Law (Arizona Revised Statutes § 44-1261 through § 44-1265), a new motor vehicle is presumed to be a "lemon" if, during the first two years or 24,000 miles after delivery (whichever comes first), the manufacturer or its authorized dealer cannot fix a defect that substantially impairs the use and value of the vehicle after four or more repair attempts for the same problem, or if the vehicle is out of service for repairs for a cumulative total of 30 or more calendar days. When that threshold is met, you are entitled to a replacement vehicle or a refund of the purchase price. This two-year/24,000-mile window is called the "term of protection," and it is the single most important deadline to know — missing it can cost you your statutory claim.
Which Vehicles and Defects Qualify
Arizona's new-car Lemon Law applies to a motor vehicle that is sold or leased and registered in Arizona, that is purchased new and used primarily for personal, family, or household purposes. It generally does not cover vehicles built primarily for off-road use, motorcycles, mopeds, or the living portion of motor homes (the chassis and drivetrain may still be covered).
The defect must "substantially impair the use and value" of the vehicle. Minor annoyances — a rattling trim piece, a squeaky seat, or cosmetic blemishes — usually do not qualify. Serious problems such as repeated transmission failure, persistent stalling, brake malfunctions, steering defects, or electrical issues that disable the vehicle are the kinds of conditions courts and manufacturers treat as substantial. The defect also must not be caused by abuse, neglect, or unauthorized modifications by the owner.
The Two Triggers: Repair Attempts and Days Out of Service
Arizona law creates a legal presumption that the manufacturer has had a "reasonable number of attempts" to fix the vehicle when either of two things happens within the term of protection:
- Four or more repair attempts for the same substantial defect, and the problem still is not fixed.
- 30 or more cumulative calendar days during which the vehicle is out of service because of warranty repairs (the days do not have to be consecutive).
Both triggers must occur during the two-year/24,000-mile term of protection. Because the repair clock and the protection clock run at the same time, it is critical to report defects early and often. Every time you bring the vehicle in, get a written repair order that lists the date in, the date out, the mileage, the complaint you reported, and the work performed. These documents are your proof of the number of attempts and the days out of service.
Refund or Replacement: What You Can Recover
Once the presumption is triggered and the manufacturer cannot conform the vehicle to its warranty, Arizona law gives you a choice between two remedies:
- A replacement vehicle that is comparable to the one you bought.
- A refund of the full purchase price, including collateral charges (such as sales tax, license, and registration fees) and finance charges.
From either remedy, the manufacturer is allowed to deduct a reasonable allowance for your use of the vehicle before the first repair attempt for the defect. Arizona calculates this offset based on the mileage at the time you first brought the car in for the qualifying problem, not the mileage when you finally demand a refund — so once again, documenting the date and mileage of that first repair attempt directly protects the size of your refund.
Exceptions and Manufacturer Defenses
The Lemon Law presumption does not apply automatically. A manufacturer can defeat a claim by showing that the alleged defect does not substantially impair the use and value of the vehicle, or that the problem was caused by owner abuse, neglect, or unauthorized alteration. Arizona law also pauses ("tolls") the count of days out of service for time the manufacturer could not perform repairs because of war, strike, natural disaster, or similar conditions beyond its control.
Many manufacturers operate a state-certified or informal dispute-settlement (arbitration) program. If the manufacturer has established a qualifying program, Arizona generally requires you to use it first before you can rely on the statutory remedies in court. Read your owner's manual and warranty booklet to find out whether your manufacturer runs such a program and how to file.