California lemon law: arbitration vs. court — which route? (2026)

California has no state agency that decides lemon claims — unlike Texas (TxDMV) or Florida (arbitration board). You choose between free certified arbitration, mediation, and court. The right choice depends on your car, your timeline, and one rule that can require arbitration first. Last reviewed September 30, 2026.

The three routes at a glance

• State-certified arbitration — free, decision typically within ~40 days of claim acceptance, binding on the manufacturer if you accept;
• New Motor Vehicle Board (NMVB) mediation — informal, (916) 445-1888;
• Court — small claims (the presumption is expressly assertable there), Superior Court, or federal court under the Magnuson-Moss Warranty Act.

Since the 2024–2025 overhaul (AB 1755 + SB 26), California is a three-track system: new procedures for manufacturers that opted in, classic Song-Beverly rules for everyone else, and DCA-certified arbitration. Your route choice interacts with which track your manufacturer is on.

Route 1: state-certified arbitration (free)

The Department of Consumer Affairs' Arbitration Certification Program certifies manufacturer programs — BBB Auto Line, the California Dispute Settlement Program (CDSP), and the Consumer Arbitration Program for Motor Vehicles (CAP-Motors) — each covering specific makes. It costs the consumer nothing, and decisions typically come within ~40 days of the claim being accepted. If you accept the decision, it's binding on the manufacturer.

One gap to know: not every make has a program (DCA's list has historically excluded some makes) — those owners go to NMVB mediation or court instead.

When you must arbitrate before going to court

This is the rule people miss. Under Civil Code § 1793.22(c): if a qualified third-party dispute process exists for your make and you received timely written notice of it, you must resort to it before asserting the lemon-law presumption in court. Skip it and you may lose the presumption — the burden-shifting advantage it gives you.

The tradeoff: limitations periods are tolled while the arbitration is pending, so the clock pauses while you go through the process. Check your warranty materials for whether you got that written notice.

Route 2: New Motor Vehicle Board mediation

The New Motor Vehicle Board ((916) 445-1888, nmvb.ca.gov) offers informal mediation — a middle path when there's no certified arbitration program for your make, or when you want a facilitated conversation before committing to court. It's the option DCA itself points consumers toward.

Route 3: court — small claims to Superior Court

The Song-Beverly presumption may be asserted in any civil action, including small claims court — a real option for straightforward cases under the small-claims limit. Larger or complex cases go to Superior Court, or federal court under the Magnuson-Moss Warranty Act.

Deadlines differ by track, so get this right: for opted-in manufacturers (AB 1755), you must file within 1 year after the express warranty expires, and never later than 6 years after delivery. For everyone else, courts apply a 4-year written-contract period whose accrual is fact-specific — do not try to compute this yourself; talk to a lawyer promptly.

Remedies are strong in court: replacement or restitution at your choice (the manufacturer can never force a replacement), the statutory mileage offset (price × miles-before-first-repair ÷ 120,000), civil penalties up to 2× actual damages for willful violations, and attorney's fees for prevailing buyers.

Attorney's fees in California lemon cases

California law awards attorney's fees and costs to a prevailing buyer (Civ. Code § 1794(d)) — one reason many California lemon-law attorneys work on contingency. Ask how any attorney you contact charges before you hire them. If your case is straightforward and well-documented, LemonLawPath can help you get organized for any forum; if it's complex, safety-related, or denied, talk to an attorney first.

How to choose

• Start with arbitration if a certified program covers your make — it costs you nothing, decisions typically come within about 40 days, and it's sometimes legally required first;
• Consider NMVB mediation if no program covers your make and you want an informal step before court;
• Go to court (usually with a lawyer) for high-value, safety-hazard, denied, or deadline-pressured cases — and always get counsel before the 4-year classic-track deadline becomes an issue.

Full California requirements: California lemon law requirements →

Sources: Civ. Code § 1793.22 · Civ. Code § 1794 · CCP § 871.21 · DCA Arbitration Certification Program