Ask a room of marketers to describe a lemon law buyback and you’ll hear “the manufacturer buys the car back.” Ask a lemon law attorney and you’ll hear a formula. The gap between those two answers is where consumer trust is won or lost, and it’s exactly where most marketing for this practice goes wrong.
The formula
California’s Song-Beverly Act entitles a qualifying buyer to a refund or replacement. The refund isn’t the sticker price: it’s the price paid plus collateral charges (tax, registration, finance charges) and incidentals like towing and rentals, minus a usage offset. The offset, under Civil Code §1793.2(d)(2)(C), is:
Offset = (miles driven before the first repair attempt for the defect ÷ 120,000) × price paid.
Every piece of that sentence matters. It’s miles before the first repair attempt for the defect, not today’s odometer, not miles at purchase. It’s a fixed divisor set by statute. And it multiplies against the actual price paid, not MSRP or current value.
Worked examples
Take a vehicle bought for $52,000. The owner first brought it in for the transmission defect at 9,000 miles. The offset is (9,000 ÷ 120,000) × $52,000 = $3,900. If collateral charges and incidentals total $6,660, the buyback math is $52,000 + $6,660 − $3,900 = $54,760, more than the purchase price, because the offset is smaller than what the owner is owed back.
Now move the first repair earlier: same $52,000 vehicle, first attempt at 4,000 miles. The offset drops to about $1,733 and the buyback climbs correspondingly. Move it later, say 20,000 miles, and the offset grows to about $8,667. Same defect, same car, meaningfully different checks. That’s the point consumers need to see: the odometer reading at the first repair attempt is worth real money, and the paper trail that documents it is what makes it provable.
- The presumption window matters too. Within 18 months or 18,000 miles, California’s Tanner Act presumes a vehicle is a lemon after 4+ repair attempts for the same defect, 2+ for a defect likely to cause death or serious injury (with written notice to the manufacturer), or more than 30 cumulative days out of service.
- The presumption isn’t a requirement; vehicles outside it can still qualify. But inside it, the case gets easier to prove, which is one reason early repair orders carry so much weight.
Why the math matters to your marketing
Two reasons. First, credibility. The consumer who’s been quoted “full buyback!” by three websites has learned to distrust all of them. The one who sees the actual formula, with the offset spelled out and applied to their numbers, meets a firm that told them the truth before they ever signed. That’s a conversion advantage no adjective produces.
Second, qualification. The offset formula quietly encodes the qualifying questions: what did you pay, when did the defect first get repaired, how many miles were on it. A consumer who works through the math has already handed intake the core facts of the case. The calculator isn’t a toy; it’s the first stage of qualification wearing a friendly interface.
There’s a third reason, subtler but just as valuable: expectation management. A consumer whose buyback estimate was built on the real formula doesn’t arrive at intake expecting a fantasy number. They arrive knowing the offset exists, roughly what it costs them, and why the paperwork that proves the mileage matters. Attorneys inherit educated clients instead of disappointed ones, and signed retainers instead of trust-repair calls.
What the math doesn’t do
Just as important: know the limits of the formula, and say them out loud. The offset applies to buybacks; it doesn’t decide whether the vehicle qualifies. Qualification turns on the repair history: attempts for the same defect, days out of service, whether the defect arose under warranty. A consumer can run perfect math on a case that isn’t a case at all, which is why the calculator always sits next to the eligibility check, never instead of it.
And the output is illustrative, not legal advice; the real numbers come from the actual purchase documents and repair history, reviewed by the attorney. Stating that plainly does double duty: it keeps the tool honest, and it gives the consumer a reason the next step has to be a conversation. “Your estimate is $54,760” is a compelling answer. “Your attorney will confirm the exact figure from your documents” is the compelling next step.
The calculator your clients should be using
This is why the buyback calculator sits at the center of the consumer toolkit. It takes price paid, miles before the first repair, days out of service and repair attempts, applies the statutory offset, and shows the consumer a realistic range, including what a willful-violation civil penalty of up to twice actual damages could mean on paper. Every output is labeled illustrative, not legal advice, because it is.
When the tool ends, the consumer isn’t a cold lead; they’re an educated prospect holding numbers they helped compute. In a live deployment, those inputs flow straight to 24/7/365 intake, where a specialist can open with “I see you’ve already run the numbers” instead of a cold script.
The bottom line
Marketers who know the formula write honest copy, set honest expectations, and build tools that qualify while they educate. Marketers who don’t, write “full refund guaranteed.” The statute picked a side a long time ago. So should your marketing.