When your hazard lights don’t work the moment you receive your vehicle, it’s more than an inconvenience—it’s a safety problem that may fall under California’s Lemon Law. At ZapLemon, we help consumers understand what the law covers, how “reasonable repair attempts” work, and what steps to take to protect your rights. The information below is educational, not legal advice, and is meant to help you spot issues and prepare for a consultation.
California Lemon Law: Hazard Lights Dead on Delivery
Hazard lights are emergency safety equipment, and California’s lemon law (the Song-Beverly Consumer Warranty Act) generally protects buyers and lessees when a new or warrantied vehicle has defects that the manufacturer can’t repair after a reasonable number of attempts. If your hazard lights are inoperative at delivery, that usually means the defect existed from day one. Whether the vehicle is new or a recent used/CPO car sold with a manufacturer’s warranty, a nonfunctional hazard system can be treated as a “nonconformity” that affects use, value, or safety.
Under California’s lemon law framework, the manufacturer (through its dealers) typically gets a reasonable number of chances to fix the issue. The state’s “lemon law presumption” can apply during the first 18 months or 18,000 miles (whichever occurs first) and, in broad terms, may be triggered by multiple repair attempts or extensive days out of service. Safety-related defects may require fewer attempts than other issues, but every case is fact-specific. Even if your situation falls outside the presumption window, you may still have protections during the warranty period.
If the problem persists after reasonable repair attempts, potential remedies can include a repurchase (buyback), a replacement vehicle, or a cash-and-keep settlement—outcomes vary and depend on the facts. Examples we see include hazard lights failing due to a faulty switch, a blown or incorrectly sized fuse, a defective body control module (BCM), wiring harness faults, or software programming errors in modern vehicles. Keep detailed records; the timeline and documentation often make the difference in evaluating your options.
What to Do If Hazard Lights Don’t Work at Delivery
If you’re still at the dealership and the hazard lights don’t function, ask the dealer to document the issue in writing before you drive off. Have the problem listed on a “Due Bill/We Owe” or repair order, request immediate diagnosis, and test the hazard lights again after any fix. If the car isn’t safe to drive, request a loaner or rental under warranty coverage and confirm who is paying for it in writing.
If you already left the lot, schedule a warranty service visit right away and explain that the defect was present at delivery. Create a simple timeline with dates, mileage, and what happened (e.g., “No dash indicator, no exterior flash, no relay click”). Take photos or a short video showing the switch pressed and the lights not flashing. Check for open recalls or Technical Service Bulletins (TSBs) related to exterior lighting or the BCM; ask the service advisor to note those in the file. For safety, consider requesting a tow rather than driving a vehicle without hazard lights, and keep all receipts.
If the problem repeats, escalate. Ask the dealer to open a case with the manufacturer and give you the case number. Continue to collect repair orders, parts lists, and days out of service—these help evaluate whether “reasonable attempts” have occurred. California has deadlines and nuances that can affect your rights, so consider speaking with a lemon law attorney. ZapLemon can review your paperwork, explain the process in plain English, and help you understand your options before you decide on next steps.
Attorney Advertising. This article is for informational purposes only and is not legal advice. Reading this post or contacting ZapLemon does not create an attorney–client relationship. Results depend on the specific facts of each case, and no outcome is guaranteed. If you believe your vehicle may qualify as a lemon due to hazard lights not functioning at delivery or recurring lighting failures, contact ZapLemon at [phone number] or [website] to request a consultation. We’re here to help you understand your rights before you take action.