Today’s cars run on code as much as they run on gasoline or electricity. When an over‑the‑air (OTA) software update goes wrong—causing crashes, glitches, or disabled features—it’s natural to wonder whether California Lemon Law can help. Below, we explain how software malfunctions fit into the law, what counts as a repair attempt, and practical steps you can take to protect your rights.
Can OTA Software Updates Make Your Car a Lemon?
Over‑the‑air updates are meant to improve performance, add features, or fix bugs without a trip to the dealership. But when an update introduces new problems—like a frozen infotainment system, a non‑functional backup camera, sudden loss of driver‑assist features, battery range drops, or charging failures—daily driving can become frustrating and sometimes unsafe. These are not just tech annoyances; they can affect core vehicle functions and your confidence in the car.
Under California’s Lemon Law (part of the Song‑Beverly Consumer Warranty Act), a vehicle can qualify as a “lemon” if a defect covered by the manufacturer’s warranty substantially impairs the use, value, or safety of the vehicle and the manufacturer or its authorized repair facilities can’t fix it after a reasonable number of attempts. Software is part of the vehicle system, so recurring software malfunctions can be nonconformities under the warranty just like hardware defects. Critically, a “repair attempt” doesn’t have to mean a wrench was turned; manufacturer‑initiated OTA patches aimed at fixing a defect can also count as repair attempts.
Consider a few real‑world scenarios. After an update, your forward collision warning starts throwing false alerts, or your lane‑keeping assist deactivates without explanation. A patch is pushed, but the issue remains. Or an update causes your touchscreen to reboot randomly, taking climate controls and the rear camera offline while driving. The dealer reprograms modules and the automaker pushes multiple follow‑up updates, yet the symptoms continue. When software updates and dealer reprogramming fail repeatedly, these efforts can add up to repair attempts for Lemon Law purposes.
What California’s Lemon Law Says About OTA Fixes
California’s Song‑Beverly Act requires manufacturers to repair defects covered by the express warranty within a reasonable number of attempts. If they cannot, the consumer may be entitled to a repurchase or replacement, plus certain incidental damages, depending on the facts. The law doesn’t distinguish between hardware and software defects—if a warranted vehicle system isn’t conforming to the warranty, and it substantially impairs use, value, or safety, it can fall within Lemon Law protections.
California also has a legal “presumption” that can make claims easier to prove in certain circumstances: within the first 18 months or 18,000 miles (whichever comes first), the vehicle is presumed to be a lemon if (1) the manufacturer or its dealers made two or more repair attempts for a defect that is likely to cause death or serious bodily injury, or (2) four or more attempts for any other nonconformity, or (3) the vehicle was out of service for more than 30 cumulative days for repairs. OTA updates and remote diagnostics intended to fix the defect can be part of your repair history. Even if you’re outside the presumption window, you may still have a valid claim under the broader Lemon Law—outcomes depend on the specifics and evidence.
Practical tips can strengthen your position. Document every symptom with dates, mileage, photos or videos, and screenshots of error messages or release notes. Save all service records and repair orders—even for remote fixes, ask the dealer to open a repair order describing the problem and the software version applied. Note how the defect affects safety, use, or value (for example, loss of ADAS features in rain, charging interruptions on road trips, or inability to use the rear camera). Check for recalls or technical service bulletins, and communicate issues promptly to the dealer and manufacturer. Because strategy depends on your situation, consider a consultation to understand options before deciding next steps.
This article is for general informational purposes only, is not legal advice, and does not create an attorney‑client relationship. Past results do not guarantee future outcomes. If you believe your vehicle may qualify as a lemon due to OTA software malfunctions or other defects, contact ZapLemon at (844) 927-5366 or visit https://zaplemon.com to request a consultation with our California lemon law team.