New Mexico’s lemon law does cover used cars, on two separate tracks. If you bought from a licensed dealer, state law forces a mandatory implied warranty of at least 15 days or 500 miles onto every used vehicle sale, and the dealer cannot sell you the car “as-is.” If the used vehicle still carries the manufacturer’s original express warranty, you inherit the same lemon law rights the first buyer had, including a possible refund or replacement. Which track you use depends on where you bought the car and whether the factory warranty is still running.
The 15-Day, 500-Mile Dealer Warranty
Under Section 57-16A-3.1, every licensed used motor vehicle dealer in New Mexico must provide an implied warranty of merchantability on every used car sold to a consumer. The dealer cannot disclaim, modify, or exclude it. There is no such thing as an “as-is” used car sale at a licensed New Mexico dealership.1New Mexico Attorney General. Used Car Buyers Guide
The warranty means the vehicle must function substantially free of any defect that significantly limits its use for ordinary transportation on public roads. Coverage runs until midnight of the fifteenth calendar day after delivery, or until you drive 500 miles after delivery, whichever comes first.2Justia. New Mexico Code 57-16A-3.1 – Used Motor Vehicle Warranty
Both the calendar and the odometer pause in your favor. Any day the warranty is in breach, plus every day the car remains non-conforming after that, does not count toward the 15-day window. Miles driven to get the car to a repair shop, or during testing after service, do not count toward the 500-mile limit.2Justia. New Mexico Code 57-16A-3.1 – Used Motor Vehicle Warranty If the car breaks on day three and stays broken for a week, that week does not eat your coverage.
Notice, Repair Costs, and the Refund Ceiling
If the warranty is breached, give the dealer reasonable notice within 30 days of the breach. The dealer gets a reasonable chance to repair before you pursue any other legal remedy. You share the cost of the first two repairs, but your share is capped at $25 per repair. After that, the dealer pays.2Justia. New Mexico Code 57-16A-3.1 – Used Motor Vehicle Warranty
If repairs fail, the dealer’s maximum liability is the full purchase price, refunded to you or your lender in exchange for returning the vehicle. That ceiling can be exceeded only if the dealer knew about the defect before selling and failed to disclose it.
When a Dealer Can Ask You to Waive It
A dealer can ask you to waive the implied warranty, but only for a specific, identified defect that is fully disclosed before the sale. The waiver must appear as a conspicuous, boldface statement on the first page of the sales agreement, listing the exact problems. A generic “as-is” line or a blanket waiver in fine print has no legal effect, and any waiver attempt that violates these rules makes the entire purchase agreement voidable at your option.2Justia. New Mexico Code 57-16A-3.1 – Used Motor Vehicle Warranty
Used Cars Still Under Manufacturer Warranty
New Mexico’s Motor Vehicle Quality Assurance Act defines a “consumer” to include anyone the vehicle is transferred to while an express warranty is still active.3FindLaw. New Mexico Code 57-16A-2 – Definitions Buy a used car with time or miles left on the factory warranty and you step into the original buyer’s shoes for lemon law purposes.
Section 57-16A-3 then requires the manufacturer to make the repairs necessary to bring the vehicle into conformity with that warranty, provided you report the problem during the warranty term or within one year of the vehicle’s original delivery date, whichever ends first.4Justia. New Mexico Code 57-16A-3 – Conformation to Express Warranties
Read that “original delivery date” carefully. A three-year-old used car with warranty remaining has already used up most of the one-year reporting window. For most used buyers, it is the remaining warranty term that gives you real runway, not the one-year clock.
When the Manufacturer Has Had Enough Chances
The law presumes the manufacturer has had a reasonable opportunity to fix the vehicle once either of these two thresholds is met:
- The same defect has been repaired four or more times by the manufacturer or an authorized dealer during the warranty term or within one year of original delivery, whichever is earlier, and the problem persists.
- The vehicle has been out of service for repairs, in the possession of the manufacturer or dealer, for a cumulative 30 or more business days during that same period, not counting routine maintenance.
Both come from Section 57-16A-3(C). The 30-day count can be extended when repair services are unavailable due to war, natural disaster, or a strike.4Justia. New Mexico Code 57-16A-3 – Conformation to Express Warranties
Once a presumption is triggered and the defect substantially impairs the vehicle’s use or market value, the manufacturer must either replace the vehicle with a comparable one or accept its return and issue a full refund.
What a Refund Actually Pays
A refund includes the full purchase price and all collateral charges, minus a reasonable allowance for your use. New Mexico measures that allowance as the value of your use before you first reported the problem, plus any later time the car was actually drivable rather than in the shop. The same deduction applies whether you take a refund or a replacement.4Justia. New Mexico Code 57-16A-3 – Conformation to Express Warranties
The statute uses a “directly attributable to use” standard rather than a fixed mileage formula. In practice, that often looks like miles driven before the first complaint divided by an assumed useful life, multiplied by the purchase price, but the exact number can be argued. Refunds are split between you and any lienholder according to your respective financial interests.
The Written Notice You Cannot Skip
Before either presumption can be used against a manufacturer, you have to send the manufacturer direct written notice giving it one final chance to repair. Manufacturers are required to tell you about this obligation, either in the warranty booklet or a separate notice.4Justia. New Mexico Code 57-16A-3 – Conformation to Express Warranties Skip this step and the presumption is off the table, which effectively guts the case.
Your notice should include the VIN, a description of the defect, and a repair history with dates, mileage readings, and the names of the servicing facilities. Send it certified mail, return receipt requested. The manufacturer’s warranty claim address is in the owner’s manual.
Notice on the dealer track is simpler. Reasonable notice within 30 days of the breach is all the statute requires, though written notice is still better than verbal.
Deadlines to Sue
Any lawsuit under the Motor Vehicle Quality Assurance Act must be filed within 18 months of the vehicle’s original delivery to its first consumer, or within 90 days after an informal dispute panel’s final decision, whichever comes later. If the manufacturer participates in a qualifying informal dispute settlement program that meets the federal standards in 16 CFR Part 703, you must go through that process before suing for a refund or replacement.5Justia. New Mexico Code 57-16A-6 – Informal Dispute Resolution If no qualifying program exists, you go straight to court.
A consumer who wins can recover reasonable attorney fees and court costs from the manufacturer. The reverse is also true: a court that finds the claim was brought frivolously or in bad faith can award the manufacturer’s fees against you. Choosing the lemon law route also forecloses certain alternative remedies under the Uniform Commercial Code, so pick your path deliberately.
Defenses the Manufacturer Can Raise
Under Section 57-16A-4, a manufacturer can defeat the claim by showing:
- The nonconformity does not substantially impair the vehicle’s use or market value. A cosmetic scratch or a squeaky seat is unlikely to qualify.
- The defect resulted from abuse, neglect, or unauthorized modifications. Aftermarket performance parts or skipped maintenance can hand the manufacturer an exit.
- The claim was not filed in good faith. Exaggerated defects or fabricated repair history fall here.
The manufacturer carries the burden on each of these. Complete repair records and a clean maintenance history make them hard to prove.
Private Sales and the Federal Backstop
Buy from a private seller rather than a licensed dealer and the state’s mandatory 15-day, 500-mile implied warranty does not apply. Private sales are not regulated by the Act, and any dispute with the seller is a private civil matter.1New Mexico Attorney General. Used Car Buyers Guide If the car still has a manufacturer’s express warranty, you can still pursue the manufacturer under the lemon law. You just have no state-law recourse against the person who sold you the car.
The federal Magnuson-Moss Warranty Act is a separate backstop for any used vehicle sold with a written warranty. It lets a consumer sue a manufacturer or warrantor that fails to honor the warranty, and a prevailing consumer can recover attorney fees and litigation costs.6Office of the Law Revision Counsel. 15 USC 2310 – Remedies in Consumer Disputes The federal statute of limitations generally runs four years from the date of purchase, which can matter if the state window has already closed.