What Lemon Law Firms Look for When Screening Cases

If your car keeps visiting the shop for the same problem, you’re likely wondering whether it qualifies as a “lemon” under California law. Before filing a claim, most California lemon law firms conduct a quick screening to see if the facts line up with the Song-Beverly Consumer Warranty Act. Below, we explain what firms typically check first and which documents make for a strong initial review—so you can get organized and make the most of a free consultation with ZapLemon.

What California Lemon Law Firms Check First

The first question is usually about warranty coverage. California’s lemon law generally applies to defects covered by the manufacturer’s warranty (new or remaining warranty on a used vehicle), and most repairs need to occur while that coverage is in effect. Firms also check where the vehicle was purchased or registered, whether it’s primarily for personal or household use, and whether an authorized dealership performed the repairs. If you leased the car, that can still qualify—leasing is treated similarly to a purchase for many lemon law purposes.

Next, firms look at the nature and frequency of the defect. The core issue is whether the problem substantially impairs the vehicle’s use, value, or safety. California’s “presumption” offers guidelines: for example, two or more repair attempts for a serious safety defect, four or more for a non-safety defect, or 30+ total days out of service within the first 18 months/18,000 miles may support a claim. These are not hard limits, but they help a firm gauge whether your case fits common patterns. Examples include stalling engines, transmission slipping, brake failures, steering issues, persistent check-engine lights, battery drain, or electrical/infotainment glitches that affect drivability.

Firms also screen for red flags that can complicate a claim. Aftermarket modifications, collision damage, missed maintenance, or repairs done outside an authorized dealer can affect coverage. They’ll ask if you reported the issue promptly, whether the same issue recurred, and whether you gave the manufacturer/dealer a reasonable number of chances to fix it. They may ask about recalls, prior buyback history, or salvage titles. None of these automatically disqualifies you, but they inform next steps and whether additional information is needed.

Evidence to Collect for an Initial Screening

Start with repair records. Gather every repair order and invoice—warranty and non-warranty—showing the date, mileage in/out, your complaint, the technician’s findings, and the fix attempted. Include loaner or rental car receipts to show days out of service. If the issue is intermittent, highlight each visit where you reported the same symptom, even if the dealer marked “no problem found.”

Add your purchase or lease documents. The retail installment sales contract or lease agreement, the manufacturer’s warranty booklet, and any extended service contracts help clarify coverage. Include registration, title, odometer disclosures, and any recall notices or technical service bulletins you received. Save emails, texts, and case numbers from calls with the dealer or manufacturer—these show notice and ongoing attempts to resolve the problem.

Round it out with photos, videos, and a simple timeline. Short clips of the defect—warning lights, no-start conditions, shuddering shifts, screen freezes—can be very helpful, especially for intermittent issues. Keep a log noting when the problem occurs, weather/temperature, speed, and any dashboard messages. If your vehicle has been towed, include roadside assistance records. The goal is a clear picture of what’s happening, when, and how it affects your ability to safely use the car.