Search for “lemon law Australia” and you’ll find plenty of confusion. Australia doesn’t have one uniform law by that name. What you have instead is a set of national consumer guarantees, plus state and territory rules that can add protections for dealer sales. This guide explains how those layers fit together, what to do if a fault appears, and where to escalate. It’s general information, not legal advice.
The national baseline: Australian Consumer Law guarantees
The ACCC explains that products and services bought from a business come with automatic consumer guarantees that they will work and do what they’re supposed to do. For cars bought from a licensed dealer, the ACCC says the vehicle must be of acceptable quality, fit for any purpose disclosed before the sale, match its description or the demonstration model, and come with clear title and undisturbed possession. See the ACCC’s page on new and second-hand cars.
Major and minor failures, and the remedies
The ACCC distinguishes between major and minor problems. In its guidance, a major problem includes a product that is unsafe, is very different from its description or sample, or has one serious problem or several smaller problems that would have stopped a buyer purchasing it had they known. For a major problem the consumer can choose a refund or a replacement. For a minor problem the business must repair it for free and doesn’t have to offer a replacement or refund. What counts as a reasonable time for a fix depends on the product. Read the ACCC’s repair, replace, refund guidance for the detail.
Dealer vs private purchase
This is the biggest dividing line. The ACCC says consumer guarantees apply to purchases from licensed dealers, but most consumer guarantees and state and territory laws do not apply to second-hand cars bought through private or auction sales. If you buy privately, you are generally relying on your own checks, so our guide on how to inspect a used car matters more, and our car buying help explains how we can assist.
Manufacturer and extended warranties vs automatic rights
A manufacturer’s warranty or an extended warranty is a voluntary extra. The ACCC says these cannot replace, change or take away your automatic consumer guarantee rights. If a seller or warranty provider tells you that your only remedy is under the warranty, check that claim against the ACCC guidance and your state regulator.
Statutory warranties: what some states add
Some states and territories add a statutory warranty for used cars sold by licensed dealers. These rules differ, so don’t assume one state’s rules apply in another. As published by each regulator at the time of writing:
| State | Statutory warranty for dealer sales (as published) | Source |
|---|---|---|
| NSW | Used vehicles: 3 months or 5,000 km (whichever comes first), if under 160,000 km and under 10 years old at purchase. Dealer guarantees don’t apply to some situations, such as a vehicle sold unregistered and in need of substantial repair. | NSW Government |
| Victoria | 3 months or 5,000 km if the car is not more than 10 years old and has travelled less than 160,000 km. It does not apply to commercial vehicles, motorcycles and certain other buyers. | Consumer Affairs Victoria |
| Queensland | Class A (under 160,000 km and no more than 10 years old): 3 months or 5,000 km. Class B (160,000 km or more, or older than 10 years): 1 month or 1,000 km. Some vehicles and components are excluded. | Queensland Government |
Other states and territories have their own rules or none of the same kind. Check the relevant consumer regulator for yours. Queensland also says its consumer guarantees apply in addition to the statutory warranty for a reasonable time after sale.
Cooling-off: it depends on where you buy
A cooling-off period is not a general right to return a car. Where it exists, it is narrow and time-limited, and you may lose it if you take delivery or fit an exception. As published at the time of writing:
- Victoria: Consumer Affairs Victoria says cooling-off applies to cars and motorbikes bought from licensed motor car traders. It’s three clear business days (excluding weekends and public holidays) after signing, the dealer can keep $100 or 1% of the purchase amount (whichever is greater), and there is no cooling-off if the car is bought in a company name or is a commercial vehicle. See Consumer Affairs Victoria’s used car cooling-off page.
- Queensland: the Queensland Government says it applies to used vehicles bought from licensed motor dealers (not private or auction sales), runs to the dealer’s next business day at 5pm, and the dealer may keep up to $100 of a deposit. Some vehicles, including caravans and commercial vehicles, are excluded. See Queensland’s cooling-off page.
- NSW: the NSW Government says cooling-off applies when a dealership arranges your loan or supplies application forms for, or a referral to, a credit provider. It’s one business day, and cancelling costs the lesser of $250 or 2% of the purchase price. See NSW’s buying a used vehicle page.
For any other state or territory, check the local regulator. Don’t assume the rules above apply to you.
What to do if a fault appears
- Stop and document. Note the date, the symptoms and the odometer reading. Take photos or video of any warning lights or damage.
- Gather your paperwork. Keep the contract, any advertisement or description, receipts, service records and warranty documents.
- Contact the seller promptly, in writing. Describe the fault and what remedy you’re asking for. Keep a copy.
- Get an independent opinion if needed. A written report from an independent mechanic can help show what’s wrong.
- Don’t assume the first answer is final. If a seller refuses, check what your state or territory regulator says before you accept it.
If you financed the car, keep your lender informed and keep paying until you’ve taken advice, because stopping repayments can have its own consequences. If you’re still shopping, our guides on buying a car interstate and car broker vs dealer may help you avoid problems before they start.
Where to escalate
If the seller doesn’t resolve the problem, the ACCC points consumers to state and territory consumer protection agencies, legal advice centres, and small claims courts and tribunals. In NSW, for example, you can lodge a complaint with NSW Fair Trading. A community legal centre or a lawyer can advise you on your specific situation.
Frequently asked questions
Is there a lemon law in Australia?
Not a single national one by that name. People search for “lemon law Australia”, but the protection comes from the Australian Consumer Law’s consumer guarantees plus state and territory rules such as statutory warranties for dealer sales. What applies depends on how and where you bought the car.
What is a major failure under consumer guarantees?
The ACCC describes a major problem as one where the product is unsafe, is very different from the description or sample, or has a serious problem (or several smaller ones) that would have stopped a reasonable buyer purchasing it. A major failure gives you a choice of remedy.
Does a manufacturer or extended warranty replace my consumer guarantees?
No. The ACCC says voluntary warranties cannot replace, change or take away your automatic consumer guarantee rights. They are extra, not instead.
Do consumer guarantees apply if I bought privately?
The ACCC says most consumer guarantees and state and territory laws don’t apply to second-hand cars bought through private or auction sales. That makes inspection and paperwork before you buy especially important.
Is there a cooling-off period for a used car?
Only in some places and situations. For example, Victoria and Queensland apply cooling-off to licensed dealer sales, and NSW applies it in specific circumstances. Periods and exceptions differ by state, so check your regulator before you sign.
What should I do first if my car develops a fault?
Stop and document it, keep your paperwork, and contact the seller promptly in writing. If the issue isn’t resolved, you can lodge a complaint with your state or territory consumer protection agency.
Can I get a refund for a faulty car?
Possibly. For a major failure the ACCC says you can choose a refund or replacement, while for a minor problem the seller must fix it. Whether your car qualifies depends on the facts, so this guide is not legal advice.
Written and reviewed by the Finance Director at Car Buyers Assist.
This article is general information only and is not legal advice. It does not take into account your personal circumstances. Consumer laws vary by state and territory and change over time; confirm current rules with the ACCC and your state or territory consumer regulator, and seek independent advice for your situation.