How Arizona Lemon Law Protects Used Car Buyers

Arizona does not have a traditional lemon law for used vehicles, but the Arizona used car lemon law most people are looking for is really ARS § 44-1267, an implied warranty of merchantability that every licensed used car dealer must honor for 15 calendar days or 500 miles after delivery, whichever comes first. The warranty cannot be disclaimed by boilerplate, cannot be erased by an “as-is” label, and gives you real remedies if the dealer can’t fix a qualifying defect. The window is short, so the details matter.

What the Warranty Actually Promises

The standard in ARS § 44-1267 is functional, not a parts list. A used car meets the implied warranty if it operates in a safe condition and is substantially free of any defect that significantly limits its use for ordinary transportation on public roads. If a problem makes the car unsafe or prevents you from reliably driving it, the warranty is triggered, whether the trouble is in the engine, the transmission, the brakes, or anywhere else.¹

Some summaries list specific components as though the statute enumerates them. It doesn’t. The broad safety-and-usability test actually works in your favor, because a defect in a part no checklist mentions still counts if it meaningfully impairs ordinary use.

One boundary matters up front. The warranty applies only to vehicles purchased from a licensed used motor vehicle dealer. Buy from a private individual through a classified listing or online marketplace and ARS § 44-1267 does not apply. Private sales carry no implied warranty under this statute, and the mechanical risk shifts to you the moment you take the keys.¹

How the 15-Day, 500-Mile Clock Works

The warranty period starts when the dealer delivers the vehicle and ends at midnight on the fifteenth calendar day or when the odometer adds 500 miles, whichever happens first. The statute has a built-in extension that most summaries miss: any day the warranty is breached, and every subsequent day the car remains out of compliance, does not count toward the 15 days. The same logic applies to mileage. Miles you drive to get the car to a repair shop or in connection with testing the defective vehicle are excluded from the 500-mile cap.¹

That pause rule matters. If a defect surfaces on day three and the car spends eight days in the shop, those eight days don’t eat into your window. Without this provision, a dealer could run out the clock by taking their time on repairs.

Who Pays for Repairs

Before you can pursue stronger remedies, the dealer must get a reasonable opportunity to repair the defect. During that process you pay half the cost of the first two repairs, but your share is capped at $25 per repair. After those first two, the dealer bears the full cost of additional work needed to bring the vehicle into compliance.¹

The statute doesn’t define how many attempts count as a “reasonable opportunity.” Unlike Arizona’s separate new car lemon law, the used car statute sets no specific number of failed attempts and no cumulative out-of-service threshold. What counts as reasonable depends on the defect and the circumstances. A dealer who has tried twice to fix the same serious brake problem is in a very different position than one who made a single attempt at a minor adjustment.

What the Warranty Does Not Cover

Not every post-purchase breakdown qualifies. The statute carves out several categories:

Damage from abuse, misuse, neglect, or failure to maintain proper fluid levels, including oil, coolant, and other lubricants.
Damage from off-road driving, racing, or towing.
Vehicles bought from a private party rather than a licensed dealer.

These exclusions give the dealer a legitimate defense if you drove the car hard, skipped basic maintenance, or caused the failure yourself. Keeping receipts for any oil changes or fluid top-offs you perform during the warranty window is worth the trouble, because it removes that argument from the dealer’s toolkit.¹

Can a Dealer Make You Sign Away the Warranty?

Not with ordinary contract language. Any attempt to exclude, modify, or disclaim the implied warranty during the 15-day/500-mile period, or to limit your remedies for a breach, makes the entire purchase agreement voidable at your option. That is a powerful consequence. You could potentially unwind the whole deal if the dealer tried to strip your warranty rights in the sales contract.¹

The statute allows one narrow exception. A dealer can obtain a waiver for a specific, known defect, but only if the dealer fully and accurately discloses the defect before the sale, and you sign a conspicuous statement on the first page of the sales agreement, printed in bold type at least 10-point, listing the exact problems you are agreeing to accept. The statement must be in the language the sales presentation was conducted in.¹

If a dealer handed you a waiver form and you signed it, check whether each defect was individually listed and accurately described. A generic “sold as-is” waiver without specific defects spelled out does not satisfy the statute.

Why “As-Is” Labels Don’t Eliminate Your Rights

Arizona law separately requires dealers to give buyers a written disclosure before completing a used car sale, and one option on that form is “as is — not expressly warranted or guaranteed.” Many buyers see this language and assume they have lost all warranty protection. They haven’t. ARS § 28-4412 explicitly states that its provisions do not negate any implied warranties applicable to the sale, including the implied warranty under ARS § 44-1267. An “as-is” label on the dealer’s form means no express written warranty. It does not override the 15-day/500-mile implied warranty the dealer cannot disclaim.

Federal law adds another layer. The FTC’s Used Car Rule requires any dealer who sells or offers more than five used vehicles in a 12-month period to display a Buyers Guide on every vehicle, indicating whether the car comes with a dealer warranty, implied warranties only, or no warranty at all. The Buyers Guide becomes part of the sales contract, and its terms override any conflicting language in the contract itself.² If the Buyers Guide says “Implied Warranties Only,” the dealer cannot bury a full warranty disclaimer in paragraph 47 of the sales agreement.

No Cooling-Off Period

A persistent misconception holds that Arizona gives car buyers three days to change their mind. It doesn’t. Arizona has no cooling-off period for motor vehicle sales. Once you sign the contract and take delivery, the deal is final. You cannot return the car because you found a better price or regretted the payment. The implied warranty protects you against defects, not buyer’s remorse.

What You Can Do When Repairs Fail

If the dealer cannot fix the problem after a reasonable opportunity, you are not stuck. ARS § 44-1267 preserves all buyer remedies available under Arizona’s version of the Uniform Commercial Code, Title 47, Chapter 2. Those remedies are substantial.

You can revoke your acceptance if a defect substantially impairs the vehicle’s value to you and you accepted the car expecting the dealer would fix the problem. You must notify the dealer within a reasonable time after you discover, or should have discovered, the defect.³
After revoking acceptance or rightfully rejecting the vehicle, you can cancel the contract and recover the purchase price you have already paid.³
You can “cover” by buying a replacement vehicle and recovering the difference between what you paid for the replacement and the original contract price, plus incidental and consequential damages.
While the car is in your possession after a rightful rejection, you have a security interest in it for any payments you have made and reasonable expenses for inspection, transportation, and care.

Keep in mind that an unlawful attempt to disclaim the warranty makes the purchase agreement voidable at your option, so voiding the whole contract may be on the table alongside the UCC remedies.¹

Magnuson-Moss Warranty Act Claims

If your used car came with a written warranty from the dealer or a remaining manufacturer warranty, you may also have a claim under the federal Magnuson-Moss Warranty Act. The Act doesn’t create warranties on its own, but when a written warranty exists and the warrantor fails to honor it, you can sue for damages. If you prevail, the court can award attorney fees and litigation costs, which removes a major financial barrier to bringing a warranty claim.⁴

Filing a Complaint With the Arizona Attorney General

If you cannot resolve the dispute directly with the dealer, the Arizona Attorney General’s Consumer Information and Complaints Unit investigates complaints involving deceptive or unfair practices in vehicle sales. The office reviews complaints and works to resolve disputes through an informal resolution process, essentially mediation between you and the dealer without going to court.⁵ Filing is free and can be done online.

How This Differs From Arizona’s New Car Lemon Law

Many online summaries blur the line between Arizona’s used car implied warranty (ARS § 44-1267) and the state’s new car lemon law (ARS § 44-1261 through 44-1265). They are different laws with different rules, and confusing them leads buyers to expect protections that don’t apply.

The new car lemon law covers vehicles still under the manufacturer’s original express warranty. It requires the manufacturer to replace the vehicle or refund the full purchase price, including taxes and collateral charges, minus a reasonable use allowance, if the car cannot be brought into conformity after a reasonable number of repair attempts.⁶ That law has formal written notice requirements, specific timelines for manufacturer response, and established arbitration programs.

The used car statute has none of those formal mechanisms. It gives you a shorter, simpler implied warranty with UCC-based remedies. If you bought a used car from a dealer and you are reading about “notifying the manufacturer by certified mail” or specific numbers of failed repair attempts, you are reading about the new car law, not the one that applies to you.

Documenting Your Claim

The window is tight, so start documenting immediately when something goes wrong. Records are often what separate a buyer who gets a resolution from one who gets stonewalled.

Keep the sales agreement, the Buyers Guide if provided, and any warranty waiver form. The agreement establishes the delivery date and odometer reading, which fix the starting point for both clocks.
Insist on a written repair order for every dealership visit, showing the date, your reported symptoms, and the work performed. If the dealer wants to handle things informally without paperwork, push back.
Keep your own log noting the date, time, and odometer reading each time a problem occurs. Describe what happened in plain terms: “check engine light on at 47,312 miles, car stalling at idle” is more useful than “car acting weird.”
Save texts, emails, and voicemails with the dealer. If you communicate by phone, follow up with an email summarizing what was discussed.

When you report the defect, do it in writing so there is no dispute about whether or when you gave notice. If the dealer later claims you waited too long or that the problem arose outside the warranty window, your dated records are what prove otherwise.

1
Arizona Legislature. Arizona Code 44-1267 – Used Motor Vehicles; Title; Implied Warranty of Merchantability Disclaimer; Waiver; Burden of Proof; Remedies
2
Federal Trade Commission. Dealers Guide to the Used Car Rule
3
Chapter 2 Sales, Title 47 Uniform Commercial Code. Arizona Revised Statutes Title 47 Chapter 2
4
Office of the Law Revision Counsel. 15 USC 2310 – Remedies in Consumer Disputes
5
Arizona Attorney General’s Office. File a Consumer Complaint
6
Arizona Legislature. Arizona Code 44-1263 – Inability to Conform Motor Vehicle to Express Warranty