Can I File a Lemon Law Claim When the Dealer Cannot Figure Out What’s Wrong With My New Car?
Yes. A dealer’s inability to diagnose what is wrong with your vehicle does not prevent you from pursuing a California Lemon Law claim.
In fact, repeated visits to the dealership for the same unresolved problem can be important evidence in a Lemon Law case—even when technicians say they “cannot duplicate” the problem, cannot identify its cause, or return the vehicle to you without completing a repair.
California’s Lemon Law focuses on whether a vehicle has a problem covered by the warranty that substantially impairs its use, value, or safety and whether the manufacturer has been given a reasonable opportunity to repair it. A definitive diagnosis is not necessarily required before you can explore a claim.
What If the Dealer Says “We Can’t Find Anything Wrong”?
This is a common and frustrating situation for vehicle owners.
You may experience symptoms such as:
- The vehicle suddenly loses power or stalls.
- Warning lights appear and then disappear.
- The transmission hesitates, jerks, or shifts unpredictably.
- The vehicle will not start intermittently.
- The infotainment system, cameras, or electronic features malfunction.
- An EV experiences charging, battery, or range-related problems.
- The vehicle makes abnormal noises or vibrations.
- Advanced driver-assistance or safety systems malfunction.
You bring the vehicle to an authorized dealership, but the repair order comes back with statements such as “could not duplicate concern,” “no problem found,” “operating as designed,” or “unable to verify customer complaint.”
That does not necessarily end the matter.
If the problem continues, continue reporting it and requesting warranty repairs. The repair history can become important evidence showing that the manufacturer had opportunities to address the problem but the vehicle continued to experience the same symptoms.
Does the Dealer Have to Know Exactly What Is Wrong for Lemon Law to Apply?
No.
Under California’s Song-Beverly Consumer Warranty Act, manufacturers have obligations when they are unable to repair a vehicle to conform to applicable express warranties after a reasonable number of attempts.
The important issue is not simply whether the dealership has successfully identified the defective component. The circumstances surrounding the vehicle, warranty, repair opportunities, and severity of the problem all matter.
For example, imagine your new SUV intermittently loses power while accelerating. You take it to the dealership three times. Each time, you clearly report the loss-of-power problem, but the technician cannot reproduce it during a test drive. The fact that the dealer has not identified the precise mechanical or electronic cause does not necessarily erase those repair opportunities.
Your repair orders documenting each complaint can be especially important.
What Does a “Reasonable Number of Repair Attempts” Mean in California?
There is no single repair-attempt number that automatically applies to every California Lemon Law case.
California law generally requires the manufacturer to have a reasonable number of opportunities to repair the vehicle. What is reasonable can depend on the nature and seriousness of the defect.
A dangerous problem involving brakes, steering, sudden loss of power, or another significant safety concern may be evaluated differently from a less serious problem.
California law also contains a Lemon Law presumption that can apply to qualifying vehicles when certain conditions occur within the applicable statutory period, including circumstances involving repeated repair attempts or the vehicle being out of service for repair for more than 30 cumulative days.
However, failing to meet the requirements of the presumption does not necessarily mean you do not have a Lemon Law claim. The broader protections of California warranty law may still apply.
Does “Could Not Duplicate” Count as a Repair Attempt?
Yes. A repair order stating “could not duplicate” or “no problem found” is important evidence because it documents that you presented the vehicle for a warranty concern and gave the dealership an opportunity to investigate it.
This is one reason you should make sure your repair order accurately describes the problem you reported.
For example, a repair order stating:
“Customer states vehicle intermittently loses acceleration while entering freeway; warning light appears and vehicle will not accelerate normally.”
is much more useful than:
“Customer states vehicle drives funny.”
Before leaving the dealership, review your repair paperwork and make sure your actual complaint is documented.
What If the Problem Only Happens Sometimes?
Intermittent problems can potentially support a Lemon Law claim.
Modern vehicles contain extensive computer systems, sensors, software, electronic modules, cameras, batteries, and communication networks. Some defects may appear only under specific driving or environmental conditions.
A vehicle may behave normally during a technician’s short test drive and malfunction again the following day.
If the problem is intermittent, documentation becomes particularly important.
When possible, safely record the symptoms with photographs or video. Document warning messages, dashboard lights, dates, mileage, weather conditions, charging conditions, speeds, or other circumstances surrounding the malfunction.
You can then show that information to the dealership during the next repair visit.
What Should I Do Every Time I Take the Vehicle to the Dealer?
Your repair records can become some of the most important evidence in a California Lemon Law case.
Whenever you bring the vehicle in:
- Describe the symptoms specifically. Explain what happens rather than trying to diagnose the vehicle yourself.
- Make sure your complaint appears on the repair order. Review the paperwork before leaving the vehicle.
- Keep every repair order and invoice. Keep documents even when the dealer says no repairs were performed.
- Document recurring problems. Photos and videos can be useful for intermittent warning lights, sounds, screen failures, or other problems.
- Track days out of service. Keep a simple record of when you dropped the vehicle off and when it was returned.
- Save communications with the dealership and manufacturer. Keep emails, texts, case numbers, and other correspondence.
Do not assume a repair visit is meaningless simply because the dealership did not replace a part.
What If the Dealer Keeps Telling Me the Car Is “Operating as Designed”?
“Operating as designed” does not automatically determine whether you have a valid Lemon Law claim.
If you continue experiencing a serious problem that affects the vehicle’s use, value, or safety, document it and continue reporting the concern.
This can be particularly important when the problem involves acceleration, braking, steering, battery performance, charging, transmission behavior, electrical systems, or safety technology.
The manufacturer cannot necessarily avoid California warranty obligations simply because a dealership labels an unresolved complaint “normal.”
Can Software Problems Make a New Car a Lemon?
Yes.
A vehicle defect does not have to involve a traditional mechanical component such as an engine or transmission.
Modern Lemon Law disputes can involve software and electronic problems, including:
- Infotainment systems that repeatedly crash
- Backup cameras or vehicle cameras that fail
- Driver-assistance systems that malfunction
- Persistent warning messages
- Charging problems in electric vehicles
- Battery-management problems
- Keyless entry or starting failures
- Software updates that fail to correct recurring problems
- Electronic control module problems
The relevant question is generally the effect of the problem and whether the manufacturer has been able to repair the vehicle under warranty—not simply whether the defect is mechanical or software-related.
Can I Have a Lemon Law Claim If No Parts Were Ever Replaced?
Yes.
Parts replacement is not necessarily what determines whether you have a claim.
A dealership may inspect the vehicle, perform diagnostic testing, update software, reset modules, test drive the vehicle, contact manufacturer technical support, or return the vehicle without performing a repair.
Those records may still help establish the history of the reported problem and the manufacturer’s opportunities to address it.
What Happens If My Vehicle Qualifies Under California Lemon Law?
Depending on the circumstances, California Lemon Law remedies may include a manufacturer repurchase (often called a buyback) or a replacement vehicle.
A repurchase can potentially include qualifying amounts paid toward the vehicle, subject to deductions and other adjustments permitted by law.
California’s Lemon Law also contains provisions concerning recovery of reasonable attorney’s fees and costs in qualifying cases.
The exact remedy depends on the facts of the individual claim.
Frequently Asked Questions
Can my car be a lemon if the dealer says there is nothing wrong with it?
Yes, potentially. A dealer’s inability to reproduce or diagnose the problem does not automatically prevent a California Lemon Law claim. Your repair history, the nature of the defect, warranty coverage, and the manufacturer’s opportunities to repair the vehicle are important factors.
Do “no problem found” repair orders help my Lemon Law case?
They can. A repair order may help document that you reported the problem and presented the vehicle for warranty service even if the dealership was unable to reproduce the condition.
Should I keep taking my car back if the dealer cannot diagnose it?
If the problem continues and the vehicle remains under applicable warranty coverage, documenting subsequent occurrences and requesting warranty service can be important. Make sure each repair order accurately describes the recurring problem.
Does the same technician have to see the problem happen?
No. A technician personally experiencing an intermittent malfunction is not necessarily required for a consumer to pursue a Lemon Law claim.
What if there are no diagnostic trouble codes?
The absence of a stored diagnostic trouble code does not automatically establish that a vehicle has no defect. Some intermittent mechanical, electrical, software, and safety-related problems may not generate a persistent code.
How many times should I take my car to the dealer before contacting a Lemon Law attorney?
You do not necessarily have to wait for a specific number of repair attempts before asking an attorney to evaluate your repair history. California’s Lemon Law does not impose one universal repair-attempt requirement for every defect.
The Bottom Line
A dealership does not have to figure out exactly what is wrong with your vehicle before you may have a California Lemon Law claim.
If your new vehicle repeatedly experiences the same substantial problem and the manufacturer or its authorized dealership has been unable to correct it after being given reasonable repair opportunities, your repair history should be evaluated under California Lemon Law.
Repair orders marked “could not duplicate,” “no problem found,” or “operating as designed” should not be dismissed. Those records may help establish when the problem was reported and how many opportunities the manufacturer had to investigate and repair it.
If your dealership cannot diagnose or repair a recurring problem with your new vehicle, California Lemon Law Services can review your repair history and help determine whether your vehicle may qualify for a buyback, replacement, or other available relief.
Visit CaliforniaLemonLawServices.com to request a consultation.
This article is for general informational purposes and is not legal advice. Lemon Law eligibility depends on the specific facts, warranty coverage, repair history, vehicle, and applicable California law.