California Lemon Law for Daytime Running Light Problems

Daytime running lights (DRLs) are easy to overlook—until they flicker, fail, or trigger dash warnings over and over. If your DRLs keep acting up despite repeated trips to the dealer, you may be wondering whether California’s Lemon Law can help. This article explains how the California Lemon Law can apply to DRL issues, what “reasonable repair attempts” means in plain language, and how to document your repairs so you can make informed next steps. ZapLemon serves California drivers with ongoing vehicle problems and provides information to help you understand your rights before you decide how to proceed.

DRL Problems and California Lemon Law Basics

Daytime running lights are designed to make your vehicle more visible to others during daylight hours, reducing crash risk. Common DRL problems include intermittent flickering, one side going out, dim or discolored LEDs, moisture inside the lamp housing, dashboard warnings for lighting systems, and battery drain tied to a faulty control module or wiring harness. Sometimes the issue is a bad bulb or LED array; other times it’s a software glitch, a body control module fault, or a design defect that causes premature failure.

California’s Lemon Law (the Song-Beverly Consumer Warranty Act) generally requires manufacturers to repair defects covered by warranty that substantially impair a vehicle’s use, value, or safety. If the manufacturer or its authorized dealer cannot fix the problem after a reasonable number of repair attempts, the law may provide remedies such as a buyback or replacement. While DRLs are not the primary headlights, persistent DRL failures can raise safety and value concerns—especially when they trigger warning lights, cause visibility issues, or require repeated out-of-pocket trips to the dealer. This article is for informational purposes only and is not legal advice.

What counts as a “reasonable” number of attempts depends on the facts. California has a “lemon law presumption” that can apply during the first 18 months or 18,000 miles if certain thresholds are met (for example, multiple repair attempts for the same problem or 30 or more total days out of service). You do not have to meet the presumption to have a potential claim, but detailed repair records matter. In practice, DRL cases often involve multiple documented visits for the same lighting fault, parts replacements (such as lamp assemblies or modules), and ongoing warnings that the dealer can’t permanently fix.

Steps to Document Daytime Running Light Defects

Start a simple log the first time your DRLs act up. Note the date, mileage, weather, and what you observed (flicker, one side out, dim, warning message). Take clear photos or short videos showing the condition—especially if the problem is intermittent—and save screenshots of any dashboard alerts. If a scan tool reads diagnostic trouble codes, ask the dealer to record them on the repair order and avoid clearing codes yourself.

When you visit the dealer, describe the symptoms the same way each time and ask the service advisor to write your concern exactly on the repair order. Request copies of all paperwork, including warranty repair orders, parts replaced, and technician notes. If the issue returns, schedule another visit promptly and reference your prior repair order numbers. Keep records of towing, rental cars, or loaners arranged by the dealer, as days out of service may be relevant under the law.

Check your warranty booklet to confirm coverage for lighting components—many DRL issues fall under the basic “bumper-to-bumper” period, and some brands have extended coverage or special policies for specific lamp assemblies. Use your VIN to check for recalls and Technical Service Bulletins (TSBs) on the manufacturer’s website or NHTSA.gov; a known issue with a repair procedure can be important. If the DRL problem persists after multiple documented attempts or your vehicle spends significant time in the shop, consider speaking with a California lemon law attorney about your situation. Deadlines can apply, so it’s a good idea to get tailored advice based on your records and warranty status.