Documentation: the work that wins lemon law cases

Every repair order matters

Under both MMWA and most state lemon laws, the manufacturer's liability is triggered by failed repair attempts. The repair attempt has to be documented to count. A trip to the dealer that doesn't generate a written repair order may not count as an attempt for legal purposes.

The minimum threshold: every visit to the dealer should produce a written repair order. The repair order should identify the date, the mileage, the consumer's reported concern, and what the dealer did (or didn't do) in response.

What to ask the service writer to include

Service writers control the language of the repair order. Their default language often minimizes the defect. "Customer states vehicle pulls to the right" sounds like an opinion. "Verified vehicle pulls to right under acceleration" is a factual confirmation by the dealer. The difference between those two phrasings can be the difference between a case and no case.

Specific requests to make when the service writer is filling out the work order:

• Use the actual words you used to describe the defect, in quotes. "Customer states transmission shifts hard between 2nd and 3rd."
• Note any error codes pulled. If the technician scanned the vehicle and pulled a code, the code should be on the work order.
• Note what the technician did. "Test drove. Could not duplicate." or "Replaced solenoid pack per TSB." or "Performed software update."
• Note the dealer's recommendation. If the dealer says "drive it and bring it back if the problem recurs," that should be on the order.

What to do BEFORE the service appointment

Document the defect on your end before you ever pull into the service drive:

• Video the defect when it happens. Phone video of the symptom, with audio narration of date and time. Save the video — don't rely on it staying in your camera roll forever.
• Photograph dashboard warning lights. Date-stamped photos of any warning lights, error messages, or other dashboard indicators.
• Write a one-sentence description of the defect. Use the same one-sentence description every time you bring the vehicle in. Consistency in your reporting helps build the case that the dealer was on notice from the first visit.

What to do AT the service appointment

• Verify the work order before you leave. Read what the service writer wrote down. If the description doesn't match what you reported, ask for it to be corrected.
• Keep a copy of the signed work order. The service writer keeps a copy. So should you. Phone-photograph it if you have to.
• Note the loaner/rental information. If you got a loaner, note the loaner information. Days out of service matters for state lemon-law presumptions.

What to do AFTER the service appointment

• Read the completed repair order when you pick up the vehicle. Verify what the dealer did. If the order says "could not duplicate," that's actually fine for MMWA purposes — it's evidence the dealer was on notice and didn't repair the defect.
• Test the vehicle before you drive home. If the defect is reproducible and you can reproduce it in the service drive, do so. This may prompt a re-inspection.
• File the repair order in a dedicated folder. Physical or digital, but consistent. We've seen cases lost because the consumer couldn't find a key repair order six months later.

The "no problem found" trap

The most common dealer response to intermittent defects is "could not duplicate" or "no problem found." Many consumers interpret this as the dealer telling them the defect doesn't exist. It is not. It is the dealer telling you that they couldn't reproduce it during their inspection window.

From a legal standpoint, "could not duplicate" is a documented repair attempt that failed to fix the defect. It is exactly the kind of documentation that MMWA cases are built on. The wrong move is to stop bringing the vehicle in because the dealer keeps saying "we can't find it." The right move is to keep documenting until the manufacturer has had a reasonable opportunity to repair and has failed.

For more on what counts as a reasonable opportunity, see our piece on reasonable repair attempts under MMWA and state lemon law. When you have the documentation in place, take our case quiz.