California Lemon Law Time Limit: How Long Do You Have to File a Claim?

If your vehicle keeps breaking down and the manufacturer can’t seem to fix it, you may have a lemon on your hands — and you have legal rights under California law. But those rights come with a clock. Missing the California lemon law time limit can mean losing your ability to seek a refund, replacement, or cash settlement entirely.

At Sage Law Group, LLP, we’ve helped thousands of California consumers navigate this process. In this guide, we break down everything you need to know about lemon law deadlines — including important changes that took effect in 2025 — so you don’t miss your window to act.

What Is the California Lemon Law?

California’s Lemon Law is part of the Song-Beverly Consumer Warranty Act — one of the strongest consumer protection statutes in the country. It protects buyers and lessees of new vehicles that come with a manufacturer’s warranty and develop defects that substantially impair the vehicle’s use, value, or safety.

If your vehicle qualifies, the manufacturer is required to either:

• Buy back your vehicle (a full or partial refund including taxes, fees, and payments made)
• Replace your vehicle with a comparable new one
• Offer a negotiated cash settlement

Critically, under California law, the manufacturer is also responsible for paying your attorney’s fees — meaning you pay nothing out of pocket when you work with a qualified lemon law attorney.

California Lemon Law is designed so that consumers never pay attorney fees. If you have a valid claim, your legal costs are covered by the manufacturer.

What Is the California Lemon Law Time Limit?

This is where many consumers get confused — and where missing a deadline can be costly. California’s lemon law time limits have two layers: the statute of limitations for filing a lawsuit, and the lemon law presumption window that helps establish your case.

The General Statute of Limitations

Historically, California consumers had four years from the date they first discovered (or reasonably should have discovered) the vehicle’s defect to file a lemon law claim. This is still a guiding principle for when your clock starts.

The four-year window begins not from the date you purchased the vehicle, but from when you first became aware of the defect — which is often the date of your first repair attempt at a dealership.

Important 2025 Changes Under AB 1755

As of 2025, California passed Assembly Bill 1755, which introduced significant changes to lemon law time limits. If a manufacturer opts in to the new framework, the following deadlines may now apply:

• You must file within one year after your vehicle’s warranty expires
• Claims must be filed no later than six years from the original vehicle delivery date — whichever deadline comes first

These changes make it more important than ever to act quickly. Under the old rules, some consumers had years to act even after their warranty expired. Under the new rules, that window can be significantly shorter.

Example: If you purchased a vehicle on January 1, 2020 with a 5-year warranty expiring January 1, 2025 — under AB 1755, you would need to file your lemon law lawsuit by January 1, 2026.

The Lemon Law Presumption: 18 Months / 18,000 Miles

Separate from the statute of limitations, California has what’s called the “Lemon Law Presumption.” This is a tool that makes it easier to prove your vehicle is a lemon — but it only applies if your defects arose within the first 18 months of ownership or within the first 18,000 miles driven, whichever comes first.

Under this presumption, your vehicle is legally presumed to be a lemon if:

• The same defect occurred at least two times and could cause serious injury or death
• The same defect required four or more repair attempts
• The vehicle was out of service for more than 30 cumulative days due to warranty repairs

You can still file a lemon law claim after 18 months or 18,000 miles — but you won’t benefit from the automatic presumption, and your case becomes harder to prove. This is why acting early is so important.

When Does the Clock Start?

One of the most common misconceptions is that the lemon law time limit begins on the day you signed the purchase or lease agreement. This is not always the case.

The statute of limitations typically begins when:

• You first noticed the defect in your vehicle
• You took your vehicle in for its first repair attempt related to the defect
• A reasonable person in your position would have discovered the problem

This distinction matters. If a defect developed gradually — for example, a transmission issue that worsened over several months — the clock may not have started the day you drove off the lot. An experienced attorney can help you determine exactly when your statute of limitations began.

What Happens If You Miss the Deadline?

Missing the California lemon law time limit can have serious consequences:

• You may permanently lose the right to seek a refund or replacement
• The manufacturer can use the expired statute of limitations as a legal defense to dismiss your case
• Waiting too long allows manufacturers to argue that wear and tear — not a manufacturing defect — caused the problem
• Evidence becomes harder to preserve; repair records may be lost or harder to obtain

The longer you wait, the weaker your case becomes. If you believe your vehicle may be a lemon, consult an attorney as soon as possible — even if you’re unsure whether the deadline has passed.

New for 2025: Pre-Litigation Requirements Under AB 1755

AB 1755 didn’t just change the statute of limitations — it also added new procedural steps before you can file a lemon law lawsuit in California.

1. Written Notice Requirement

Effective April 1, 2025, before you can pursue civil penalties in a lemon law lawsuit, you must send a written notice to the manufacturer at least 30 days before filing. This letter requests that the manufacturer buy back or replace your vehicle.

2. Mandatory Mediation

AB 1755 also requires that both sides participate in formal mediation before the case can proceed to court. During mediation, legal discovery is paused, giving both parties a chance to reach a settlement. If mediation fails, you can move forward with filing your lawsuit.

3. Pre-Suit Demand Letter

To preserve your right to seek civil penalties (which can be up to two times your damages), you must send a pre-suit demand letter before filing. For a $50,000 vehicle, this means you could be entitled to up to $150,000 in civil penalties — but only if the letter was sent correctly and on time.

These new requirements mean more upfront steps before going to court — but a skilled lemon law attorney handles all of this on your behalf so nothing falls through the cracks.

Steps to Protect Your Rights Before the Deadline

If you suspect you have a lemon, take these steps immediately to preserve your claim:

1. Document every repair attempt. Keep all repair orders, receipts, and written communications with the dealer or manufacturer. Make sure the same defect is described consistently across documents.
2. Use authorized dealerships only. Repairs done at unauthorized shops may not count toward your lemon law claim and could complicate your case.
3. Report defects promptly. Don’t delay taking your vehicle in. Each documented repair attempt builds the record of your case.
4. Track your days out of service. If your vehicle has been in the shop for 30 or more cumulative days, this alone can help establish a lemon law presumption.
5. Contact a lemon law attorney early. A free consultation with an experienced attorney can clarify exactly where you stand — and can often resolve your case faster than going it alone.

Frequently Asked Questions: California Lemon Law Time Limits

Q: How long do I have to file a lemon law claim in California?

Under California law, you generally have four years from when you first discovered (or should have discovered) the vehicle’s defect. However, under new 2025 rules (AB 1755), the deadline may now be one year after your warranty expires or six years from the vehicle’s original delivery date — whichever comes first. Because deadlines vary by case, it’s best to consult an attorney as soon as you suspect you have a lemon.

Q: Does the California lemon law time limit start from the date I bought the car?

Not necessarily. The clock typically starts from when you first noticed the defect or took the vehicle in for its first repair attempt — not from your purchase date. This distinction is important and can give consumers more time than they realize.

Q: What is the lemon law presumption in California, and how long does it last?

The lemon law presumption is a legal shortcut that makes it easier to prove your vehicle is a lemon. It applies when defects arise within the first 18 months of ownership or 18,000 miles driven, whichever comes first. During this window, certain criteria — such as four failed repair attempts or 30+ days out of service — automatically raise a presumption that your vehicle is a lemon.

Q: Can I still file a lemon law claim if my warranty has expired?

Possibly. Under the traditional four-year statute of limitations, you may still have a claim if the defect was first discovered while the warranty was active and you are still within four years of that discovery. Under the new AB 1755 rules, you generally have one year from the warranty expiration date. An attorney can review your specific situation.

Q: What is the new pre-litigation requirement under AB 1755?

Effective April 1, 2025, if you want to pursue civil penalties in a lemon law case, you must send the manufacturer a written demand letter at least 30 days before filing a lawsuit. You must also participate in mandatory mediation. These steps are designed to give manufacturers a chance to resolve disputes before the case goes to court.

Q: Do I need an attorney to file a lemon law claim in California?

You are not legally required to hire an attorney, but it is strongly recommended. Lemon law cases involve complex legal deadlines, documentation requirements, and negotiation with large manufacturers who have their own legal teams. Importantly, if your case is successful, the manufacturer pays your attorney’s fees — meaning you pay nothing out of pocket.

Q: What vehicles qualify under the California Lemon Law?

California Lemon Law covers most new and used vehicles sold with an active manufacturer’s warranty, including cars, trucks, motorcycles, RVs, boats, and ATVs. The defect must substantially impair the vehicle’s use, value, or safety, and the manufacturer must have been given a reasonable number of attempts to repair it.

Q: What compensation can I get from a lemon law claim?

Eligible consumers can receive a full refund (including purchase price, taxes, and fees minus a mileage offset), a comparable replacement vehicle, or a negotiated cash settlement. In cases where the manufacturer acts willfully, consumers may be entitled to civil penalties of up to two times their actual damages.

Don’t Let the Clock Run Out — Contact Sage Law Group, LLP Today

The California lemon law time limit is not something to take lightly. With the 2025 changes under AB 1755 shortening deadlines and adding new pre-filing requirements, acting quickly has never been more important.

At Sage Law Group, LLP, our experienced California lemon law attorneys have settled thousands of cases for consumers just like you — with no upfront costs. We fight aggressively for you so that manufacturers are held accountable.

Call us today at (800) 651-0461 for a FREE lemon law evaluation, or fill out our online form to get started. Don’t wait — your rights have a deadline.

FREE EVALUATION: Call (800) 651-0461 or visit sagelawgroupllp.com to get started. You pay nothing unless we win, and the manufacturer covers your attorney’s fees.