What Does “Could Not Duplicate” Mean in a California Lemon Law Case?
By Patrea R. Bullock, Esq. | The California Lemon Law Expert | Published: August 3, 2026 | Last updated: August 3, 2026
Quick Answer: “Could not duplicate” means the dealership did not observe your reported problem during its inspection — nothing more. It does not mean the defect does not exist, and it does not automatically prevent that visit from counting in a California lemon law claim. The repair order still documents that the defect was reported during the warranty period. In one case, a 2020 Jaguar I-PACE had camera, air-conditioning, and driver-profile complaints that dealers initially could not duplicate but later verified and repaired — and the lemon law case settled.
Key Takeaways
- A could-not-duplicate visit still proves the defect was reported under warranty and the manufacturer had an opportunity to investigate.
- Intermittent defects depend on conditions — temperature, charge level, restart cycles — that a short test drive may never trigger.
- Specific complaint language and owner-provided video transform a weak repair record into strong evidence.
- In the I-PACE case, initially unverified camera, A/C, and profile problems were all later confirmed by the dealership.
Many vehicle owners receive a repair order containing the words: “Could not duplicate customer concern.”
That phrase can be frustrating, especially when the problem is real but intermittent. A dealership’s inability to reproduce a defect during one visit does not necessarily mean the problem does not exist. It also does not automatically prevent the visit from becoming important evidence in a California lemon law claim.
Why Dealerships Cannot Always Reproduce a Problem
An intermittent problem may depend on:
- Temperature
- Battery charge
- Vehicle speed
- How long the vehicle has been running
- Whether the vehicle was parked overnight
- Rain or humidity
- A particular road surface
- A specific sequence of commands
- Whether several electronic systems are operating at once
A technician may drive the vehicle for only a short period. If the condition does not occur during that test, the dealership may write “could not duplicate.”
A Jaguar I-PACE Repair History Shows Why Repeat Visits Matter
A California lemon law case involving a 2020 Jaguar I-PACE included several concerns that were initially not reproduced but were later verified or repaired.
Backup Camera. The owner reported that the backup camera intermittently failed to appear in reverse. The dealership initially stated that the camera was operating normally. At a later visit, the dealership performed software updates. The concern was eventually verified, and the dealership updated the image-processing module.
Air Conditioning. The owner reported that the air conditioner intermittently failed to cool. During an early visit, the dealership could not reproduce the condition. Later repair visits resulted in refrigerant recovery and recharge, a technical bulletin repair, compressor replacement, discovery of a cracked A/C line, and replacement of high- and low-pressure pipes.
Driver Profiles. The vehicle repeatedly deleted saved driver profiles. During one visit, the dealership used a test account but stated that the profile did not disappear. The problem was later verified. A memory error was found, and the occupant-monitoring module was replaced. The defect later returned and required another module replacement.
The case ultimately settled.
Does a “Could Not Duplicate” Visit Count as a Repair Attempt?
The effect of a particular visit depends on the facts. However, a repair order may still be important because it proves:
- The owner reported the problem
- The vehicle was presented for warranty repair
- The manufacturer’s authorized dealership had an opportunity to investigate
- The defect existed during the warranty period
- The problem was recurring
The dealership does not necessarily have to successfully reproduce the problem for the repair order to matter.
How to Improve the Repair Record
Before signing the repair order, make sure the complaint is specific.
Instead of: “Check camera.”
Use: “Rearview camera intermittently remains black when vehicle is placed in reverse. Parking sensors activate, but no camera image appears. Problem occurred three times this week. Video provided.”
Instead of: “A/C issue.”
Use: “Air conditioner blows warm air for 30 to 60 minutes even though all zones are set to the lowest temperature. Turning vehicle off and restarting sometimes temporarily restores cooling.”
Specific descriptions make it easier to establish that the same defect returned.
Use Video Whenever Possible
When safe, record the failure. A useful video may show:
- The vehicle is running
- The selected gear
- Dashboard warnings
- The climate setting
- The blank camera screen
- The malfunctioning feature
- The date and mileage
Ask the service advisor to write “customer provided video” on the repair order.
Do Not Accept an Inaccurate Repair Order
Review the repair order before leaving the vehicle and again when picking it up. Correct any statement suggesting:
- The concern occurred only once when it happened repeatedly
- The owner requested maintenance rather than repair
- The defect was different from the actual complaint
- The owner declined diagnosis when that did not happen
- The condition was fixed when it continued
Your repair orders may become the most important evidence in the case.
When Should You Speak With a California Lemon Law Attorney?
Consider obtaining advice when:
- The same problem has been reported more than once
- The dealership repeatedly writes “could not duplicate”
- A safety defect is intermittent
- Videos prove the condition
- The vehicle has spent substantial time in the shop
- The manufacturer says no repair is available
- The problem returns after software updates or major repairs
Frequently Asked Questions
Does “could not duplicate” mean I have no lemon law claim?
No. It only means the dealership did not observe the failure during that visit. The repair order still documents that the defect was reported during the warranty period, and later visits may verify the problem — as happened with the camera, A/C, and profile defects in the Jaguar I-PACE case described above.
Should I keep bringing the car back if the dealer can’t find the problem?
Yes. Return promptly each time the defect recurs, use specific complaint language, and provide video when it is safe to record one. A pattern of documented complaints is far stronger than a single visit.
Can I dispute what’s written on the repair order?
Review the repair order before you leave the vehicle and again at pickup, and ask the service advisor to correct inaccurate descriptions — for example, if it suggests a one-time event when the problem is recurring.
A note on deadlines: California lemon law claims are subject to filing deadlines. Procedural changes that took effect in 2025 (AB 1755 and SB 26) added pre-suit notice requirements and filing windows — generally one year after the express warranty expires and no more than six years after original delivery — for manufacturers that opted into the new process. Whether those rules apply to your claim depends on your manufacturer’s election, so acting promptly is the safest course.
Disclaimer: Prior results do not guarantee a similar outcome. Every California lemon law claim depends on its own facts, repair history, and warranty coverage.
Contact The California Lemon Law Expert for a free California lemon law consultation about your intermittent vehicle problems.
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