California Lemon Law Coverage for Safety System Malfunctions

If your car’s airbags, seat belts, brakes, or driver-assistance features are acting up, you’re right to be concerned. Safety system malfunctions aren’t just annoying—they can put you and your passengers at risk and may qualify your vehicle for relief under California’s Lemon Law. Below, ZapLemon explains how the law views safety-related defects and what steps you can take to document issues and protect your rights.

California Lemon Law for Safety System Malfunctions

California’s Lemon Law, part of the Song-Beverly Consumer Warranty Act, may provide a remedy when a vehicle has a defect that substantially impairs its use, value, or safety and the manufacturer cannot fix it within a reasonable number of attempts. Safety systems—like airbags (SRS), seat belts and pretensioners, anti-lock brakes (ABS), electronic stability control (ESC), and advanced driver-assistance systems (ADAS) such as automatic emergency braking or lane-keeping—are squarely within the “safety” category. Coverage generally applies to new vehicles and many used or certified pre-owned vehicles still under the manufacturer’s warranty, including some business-use vehicles under certain limits.

The law includes a presumption that can make it easier to prove a claim within the first 18 months or 18,000 miles, whichever comes first. Under that presumption, the vehicle may qualify if: (1) the same defect has been subject to repair four or more times; (2) a defect likely to cause death or serious bodily injury has been subject to repair two or more times; or (3) the vehicle has been out of service for repairs for a total of 30 or more days. Even if you fall outside those time or mileage thresholds, you may still have a claim—the presumption is helpful, but not mandatory.

If your car qualifies, possible remedies may include a repurchase (buyback) or replacement, plus certain incidental costs like towing or rental expenses, subject to an offset for mileage used before the first repair attempt. Manufacturers are typically responsible for reasonable attorneys’ fees if you prevail, which can help consumers pursue claims. Every situation is fact-specific, so this information is general and not legal advice. If you’re dealing with persistent safety failures, consider speaking with ZapLemon to review your options.

Common Safety Malfunctions and How to Document

Safety defects often show up as warning lights, intermittent failures, or systems that disable themselves without warning. Examples include an illuminated airbag light, non-functioning seat belt pretensioners, ABS/ESC warnings, brake-assist problems, electric power steering loss, or unintended acceleration related to throttle control. Modern ADAS features can also misbehave—false automatic emergency braking, lane-keeping that “bounces” between lines, blind-spot sensors that miss vehicles, or backup cameras that go black. After windshield replacement or body work, cameras and radars may need recalibration; when that’s not done correctly, safety features can become unreliable.

Good documentation often makes or breaks a lemon claim. As soon as a problem appears, note the date, mileage, weather, speed, and driving conditions, and take photos or brief videos of warning lights, error messages, or behavior (when safe to do so). At the dealership, clearly describe symptoms in your own words—what you felt, saw, and heard—and ask that your exact complaint, the dealer’s diagnosis, and the “cause and correction” appear on the repair order. Request copies of all repair orders and invoices, keep a log of days your vehicle is out of service, save tow receipts and rental bills, and avoid clearing codes or resetting systems before the dealer can scan them.

If the issue persists, ask the dealer to involve a factory field technician and check for technical service bulletins (TSBs), recalls, or software updates. Consider providing written notice to the manufacturer per your warranty booklet, and keep copies of emails or case numbers from customer care. If a defect seems dangerous—like loss of braking assist, steering assist, or recurring unintended braking—stop driving and arrange for a tow rather than risking an incident. Avoid aftermarket modifications that could complicate warranty coverage. When the pattern of repairs continues, consult a professional; ZapLemon can help you evaluate next steps under California law.