California Lemon Law for Ignition Switch Failures in New Cars

Ignition switch problems in a new car can feel both baffling and scary—especially if your vehicle won’t start, stalls unexpectedly, or loses power while driving. In California, the Song-Beverly Consumer Warranty Act—often called the California Lemon Law—may provide relief when a manufacturer can’t fix a covered defect after a reasonable number of attempts. Below, ZapLemon explains how the law can apply to ignition switch failures and what telltale symptoms to watch for. This article is for general information only and is not legal advice.

How California Lemon Law Applies to Ignition Switches

The California Lemon Law protects buyers and lessees of new vehicles that come with the manufacturer’s warranty. An ignition switch—or the electronic ignition module in push-button vehicles—is part of the vehicle’s covered electrical system. If your new car’s ignition switch defect is covered by warranty and the manufacturer or its authorized dealer can’t repair it within a reasonable number of attempts, you may be entitled to legal remedies such as a repurchase (buyback) or replacement. Because ignition-related problems can create serious safety risks, they are taken seriously under the law.

What counts as a “reasonable number” depends on the facts, but California has a helpful legal presumption for new vehicles within the first 18 months or 18,000 miles (whichever comes first). Generally, the presumption may apply if: the dealer made two or more repair attempts for a defect that could cause death or serious injury; or four or more attempts for the same problem; or the vehicle was out of service for warranty repairs for a total of 30 or more days. You may still have a valid claim even if you’re outside these guidelines—the presumption just makes certain cases easier to prove. Every situation is unique, and you should consult an attorney for advice about your specific facts.

If an ignition switch defect qualifies, potential remedies can include a manufacturer buyback (with a mileage offset for your use), a replacement vehicle, and reimbursement of certain incidental expenses like towing or rental cars, as allowed by law. Manufacturers sometimes offer arbitration, which is optional; you should understand the pros and cons before agreeing. The most important step you can take right now is to document everything: repair orders, dates, mileage, tow receipts, and videos of the symptom. For questions about your rights and next steps, contact ZapLemon for a consultation. Reading this post does not create an attorney-client relationship.

Common Symptoms of Ignition Switch Failures in New Cars

Ignition switch issues often show up as intermittent starting problems. You might turn the key and hear nothing, or the engine may crank but not fire. With push-button start, you may get messages like “Key Not Detected” or “Accessory Mode Only,” even when the fob is present and battery is healthy. Other clues include the key not turning, difficulty removing the key, or the steering wheel locking unexpectedly when parked.

Some ignition defects cause sudden stalling while driving, which can be dangerous. You may lose power steering or power brakes if the engine cuts out, the dashboard may flicker, or warning lights may appear just before a stall. Electrical accessories—radio, HVAC, windows—might shut off unpredictably. Because these symptoms can overlap with battery, alternator, starter, or sensor problems, a thorough diagnosis is important. Also check for recalls or Technical Service Bulletins (TSBs); ignition-related recalls have affected certain models in the past.

Practical steps can strengthen your warranty record. Bring the issue to an authorized dealer promptly and describe symptoms precisely: speed, weather, fuel level, whether it happens hot or cold, and any warning lights. Keep copies of all repair orders and tow receipts, and ask the dealer to note the specific concern (e.g., “vehicle stalls while driving” vs. “no problem found”). If the issue is intermittent, provide photos or short videos. Avoid heavy keychains that can stress a mechanical ignition cylinder, and ask the dealer to check for TSBs, updated parts, or software. If repairs drag on, track total days out of service and consider opening a case with the manufacturer’s customer care line.