California Lemon Law Statute of Limitations

California’s lemon-law statute of limitations is one of the most-litigated procedural questions in Song-Beverly cases — partly because the statute itself doesn’t specify one, and partly because the answer depends on which underlying warranty you’re suing on.

The default rule: four years

For Song-Beverly Act claims, California courts apply the four-year statute of limitations for breach of written warranty under California Commercial Code § 2725. The clock generally starts on the date the vehicle was delivered to the buyer — not the date the defect first appeared.

This is broader than buyers often realize. A car delivered in 2022 with a transmission defect that didn’t manifest until 2024 can still be the subject of a lawsuit filed in 2026 — well within the four years from delivery.

The future-performance exception

Section 2725(2) carves out a key exception: when a warranty “explicitly extends to future performance” of the goods and discovery of the breach must await the time of such performance, the four-year clock starts running from the date the breach is or should have been discovered.

California courts have applied this exception unevenly. The leading case is Mexia v. Rinker Boat Co. (2009) 174 Cal.App.4th 1297, which held that the implied warranty of merchantability can extend to future performance under Song-Beverly because the statute’s one-year implied-warranty duration was intended to extend implied-warranty coverage, not to shorten it. Other appellate panels have read Mexia narrowly. The practical effect: if your defect manifested late in the four-year window, an experienced attorney may still have viable arguments.

What restarts the clock

A few specific events can effectively restart or toll the limitations period:

• Repair attempts. Each new repair attempt can be argued as a new breach if the manufacturer’s failure to fix is the actual violation under § 1793.2(d)(2).
• Written acknowledgment of defect. A manufacturer letter accepting responsibility for a particular defect — common in TSB (“technical service bulletin”) situations — can extend the limitations period.
• Equitable tolling. If the manufacturer concealed the defect or its cause (rare, but it happens), the clock may pause until discovery.
• Pending arbitration. Manufacturer-sponsored arbitration programs (BBB Auto Line, etc.) may toll the statute while arbitration is active — but this is jurisdiction- and program-specific.

Magnuson-Moss limitations

The federal Magnuson-Moss Act has no independent statute of limitations. Courts apply the most analogous state-law period — which in California means four years under Commercial Code § 2725 again, the same period as Song-Beverly. So pleading Magnuson-Moss alongside Song-Beverly does not extend the deadline.

Implied-warranty limitations

The implied warranty of merchantability under Song-Beverly attaches at delivery and runs for at least 60 days but not more than one year (§ 1791.1(c)). The breach of the implied warranty, however, is still subject to the four-year statute of limitations from delivery. Confusingly, this means:

• The warranty itself only covers defects manifesting within the 60-day-to-one-year window.
• But a lawsuit alleging that breach has four years from delivery.

The Mexia rule (above) can extend the coverage window in certain circumstances by treating the implied warranty as extending to future performance.

The takeaway

If your vehicle was delivered less than four years ago, you almost certainly still have a viable claim — even if the defect just appeared. If it was delivered between four and six years ago, you have arguments under the future-performance exception, equitable tolling, or the repair-attempt-as-new-breach theory, but they’re factually contested. Beyond six years, you’re fighting uphill.

The single biggest mistake buyers make: assuming the clock started on the date the defect first appeared. It started on the date of delivery. If you bought the car a long time ago and the problem just emerged, get a free case review before assuming you’re out of time.

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