Engine problems can be scary, expensive, and exhausting—especially when they keep coming back after multiple trips to the dealership. If your car’s engine is stalling, burning oil, losing power, or repeatedly triggering the check-engine light, California’s Lemon Law may offer protection. Below, we explain how the law applies to engine defects and what to document so you can make informed decisions about your next steps.
How California Lemon Law Applies to Engine Defects
California’s Lemon Law (part of the Song-Beverly Consumer Warranty Act) protects buyers and lessees of vehicles that have substantial defects covered by a manufacturer’s warranty. Engine defects often qualify because they can seriously affect a vehicle’s use, value, or safety. Examples include persistent stalling, misfires, overheating, excessive oil consumption, loss of power, or recurring check-engine warnings that the dealer can’t seem to fix.
To trigger Lemon Law remedies, manufacturers must usually be given a “reasonable number” of repair opportunities. California has a legal presumption that helps consumers in the first 18 months or 18,000 miles: generally, four or more repair attempts for the same issue, two or more attempts for a defect that could cause serious injury or death, or a total of 30+ days out of service for warranty repairs may meet the presumption. Even if your situation falls outside those numbers, you may still have a claim—the law looks at the overall repair history and impact of the defect.
If your vehicle qualifies, potential outcomes can include a manufacturer repurchase (buyback), a replacement vehicle, or a cash settlement to compensate for diminished value and inconvenience. Which option applies depends on the facts and your warranty, and outcomes vary. There are also time limits for bringing claims, and the process involves specific steps and documentation. A consultation can help you understand how the rules may apply to your situation—especially with complex engine issues that come and go.
Signs of a defective engine and what to record
Engine problems can show up in many ways. Common signs include rough idling, knocking or ticking noises, hesitation or loss of power while accelerating, excessive exhaust smoke, overheating, or a strong fuel or coolant smell. You might also see the check-engine light return soon after a repair, notice frequent misfires, experience hard starts when the engine is cold, or find yourself adding oil between changes due to unexplained consumption.
Good records are often the difference-maker in Lemon Law cases. Each time a problem occurs, note the date, mileage, driving conditions (highway, stop-and-go, uphill), speeds, and dashboard warnings. Take photos or videos of warning lights, smoke, or fluid leaks. Keep tow receipts, rental or loaner paperwork, and any roadside assistance logs. Most importantly, ask the service advisor to write your exact complaint on the repair order and make sure you receive a final invoice showing the “cause” and “correction” for each visit, including any diagnostic trouble codes (DTCs) pulled from the OBD-II system.
A few practical tips can help: schedule repairs with an authorized dealer while the vehicle is still under warranty; avoid modifications that could let the manufacturer argue the engine was altered or abused; follow your maintenance schedule and keep receipts; and communicate recurring issues in writing (email works well). Track total days your car is in the shop, and consider a second visit promptly if the same symptom returns. If repairs stall or the problem persists, you can also file a complaint with the California Bureau of Automotive Repair. When in doubt, a quick case review can clarify next steps.
This article is for general informational purposes only, is not legal advice, and reading it does not create an attorney–client relationship. Every situation is different, and results cannot be guaranteed. If you believe your vehicle may qualify as a lemon or you want help reviewing your repair history, contact ZapLemon for a consultation at (555) 201-1234 or visit www.ZapLemon.com. Attorney advertising. Past results do not guarantee similar outcomes.