Latent Defect in Vehicle Sales: The Seller's Liability

In second-hand vehicle sales, the seller is liable at the moment of delivery for defects present in the vehicle that cannot be detected upon ordinary inspection, even if the seller was unaware of these defects. The buyer may claim rescission of the contract, a price reduction, free repair, or compensation based on the provisions on latent defects. So how much is the seller of a vehicle obligated to disclose about an accident, paint loss, or engine problems? In this article, I explain the limits of liability and the legal significance of the TRAMER record, the inspection report, and the declarations in the notarized contract.

What Is a Latent Defect, and How Does It Differ from a Patent Defect?

The definition of defect in the Turkish Code of Obligations is simple but clear: a defect exists if the sold item does not possess the qualities stated by the seller, or if it has a shortcoming that diminishes its value or eliminates the benefit expected from the contract. Over the years, what this definition means for a second-hand vehicle is something everyone knows: the car you advertised and sold as clean actually carries a different history than what you were told.

The law makes two distinctions. A patent defect is a shortcoming that can be detected at first glance or through a simple drive; if the buyer accepted it knowingly, or should have noticed it, they cannot later rely on that defect. A latent defect, on the other hand, is a defect that already existed at the time of the vehicle's delivery but does not reveal itself upon ordinary inspection. Cracks inside the engine, gearbox gear wear, and electronic control unit failures fall into this group. A finding born of forty years of professional experience: most lawsuits arise from this second group, which only manifests itself later.

Two separate regulatory frameworks must also be kept in mind. The Code of Obligations applies to one-off sales between individuals; when the seller is a dealership or an authorized dealer and the buyer is a consumer, the Law on the Protection of Consumers comes into play. A dealership selling on commission also bears responsibility equivalent to that of a seller within the meaning of this law.

Does Saying "I Didn't Know" Save the Seller?

No. Liability does not depend on fault; the seller is liable even if unaware of the latent defect existing at the moment of delivery. You may not like this as a seller, but the logic holds: the party who is not obligated to ensure the sold item is flawless is the one who must remedy the defect or bear its consequences. Formerly known as the hidden defect, this remains the buyer's strongest card under the new regulations as well.

On the other hand, the seller does have some legitimate defenses. If the buyer knowingly, or with reason to know, accepted a defect, they cannot later rely on that defect. Selling the vehicle well below its market value alone does not mean the buyer knew of the defect; the seller cannot escape liability merely by pointing to the low price. The burden of proof also lies with the seller: if the seller cannot prove that the buyer knew of the defect in advance, the buyer is presumed not to have known.

The Buyer's Optional Rights: Return or Price Reduction?

The law gives the buyer not just one right in a defective sale, but four options. The buyer may exercise one of these:

• Rescission of the contract: the vehicle is returned and the price is refunded with interest; litigation costs and direct damages arising from the defect may also be claimed.
• Price reduction in proportion to the defect: the difference between the value without the defect and the value with the defect is calculated by an expert report.
• Free repair.
• Replacement with a defect-free equivalent; in practice this is not a workable option for a used vehicle.

There is a limit here too: if the defect is close to the sale price, the buyer may exercise only the rights of rescission or replacement. The optional rights can be exercised even if the vehicle has subsequently been written off or destroyed; the buyer is obliged to hand over whatever remains to the seller. Court rulings generally award the cost of complete part replacement for engine and transmission failures; one should not harbor expectations of the vehicle being renewed from scratch.

Notice and Statute of Limitations: How Quickly Must the Buyer Act?

The buyer is obliged to inspect the vehicle as soon as they take possession and to notify the seller of any defect they find within a reasonable time. If no notice is given, the vehicle is deemed to have been accepted as-is. For a latent defect, this period starts from the moment the defect is discovered; under the principle of good faith, this is a reasonable period of a few days. A buyer who notices the fault but continues to use the vehicle without informing the seller loses their rights. My advice here is old-fashioned but still the soundest: on the day the defect is discovered, send a formal notice through a notary.

The statute of limitations side is also important. Lawsuits for liability arising from a defect must be filed within 2 years of the transfer of the vehicle. However, if notice has been given to the seller within those 2 years, the lawsuit can be filed later. And there is one exception that is critical for the seller: if the defect was concealed through gross fault or fraud, the 2-year statute of limitations does not apply and the seller cannot defend themselves by claiming they were not notified in time. Odometer tampering and concealing severe damage constitute qualified fraud in the criminal law sense; even if the buyer did not have an inspection performed, liability can be pursued in a fraudulent sale.

TRAMER, Expert Inspection, and Notary Declaration: What Removes the Seller's Liability?

There are three documents sellers rely on most: the TRAMER record, the expert inspection report, and the acknowledgment statement in the notarized contract. All three have a protective effect, but none of them is an absolute shield against a hidden defect.

How long does the TRAMER record protect?

Defect provisions cannot be invoked for damages visible in the TRAMER record; nor is the buyer protected by failing to check the record. However, the record says very little about a vehicle's defects. If the damage was repaired at an ordinary garage before being reflected in TRAMER and not disclosed to the buyer, the defect provisions apply; the same is true if the buyer was informed of the accident but misled about its consequences. In other words, the liability-removing effect of the TRAMER record is limited.

Where does an inspection report suffice, and where does it not?

The seller's liability is removed for defects stated in the report; liability continues for issues not included in the report. If the vehicle was sold without an inspection, the seller cannot escape liability. If erroneous information was entered in the report, the seller is still liable; a buyer harmed by the faulty report can file a case against the inspection company before the Consumer Arbitration Committee or Consumer Court.

Is the general declaration in the notarial contract valid?

A general declaration signed at the notary, such as "I inspected the vehicle and accept it in this condition," does not remove the seller's liability. What removes liability is the specific, individual listing of the defects in the contract. For hidden defects, a defense such as "they saw it when buying" or "they could have had an inspection done" is also invalid. If the seller wants to protect themselves, the course of action is clear: write every known defect into the contract item by item. The liability waiver clause that some dealerships include in their contracts also does not cover hidden defects.

Warranty of a Vehicle Purchased from a Dealership and Consumer Lawsuits

A consumer buying a vehicle from a dealership is in a more privileged position than a buyer in a private sale. Under the Regulation on the Trade of Second-Hand Motor Land Vehicles, dealerships are required to provide a 3-month or 5,000-kilometer warranty on the vehicles they sell. In consumer transactions, the buyer also bears no separate inspection burden; all they need to do is give notice within a reasonable time from the discovery of the defect.

The situation does not change for the party selling to the dealership. A dealership selling on commission is considered equivalent to the seller under consumer law. Years ago, everyone behind the sales desk was free of liability; now the picture is much clearer, and in my view that is a good thing.

How Does a Defective Vehicle Lawsuit Proceed?

From the buyer's perspective, the process follows these steps:

1. Identification of the defect and notification to the seller; in the case of a hidden defect, promptly from the moment of discovery, preferably via a notarized notice.
2. Collecting evidence: a request for evidence determination, and comparison of TRAMER and inspection mileage records against the contract declarations.
3. Filing the case at the Civil Court of First Instance where the defendant resides; the claim may be for return and refund, a price reduction proportional to the defect, or repair costs.

Selling the vehicle to someone else while the lawsuit is ongoing is not an obstacle; if it was sold at a low price, the difference can also be claimed. In defects concealed through fraud, as I just mentioned, the 2-year period does not constitute an obstacle. The court process proceeds with expert examination; the difference between the defect-free value and the defective value is the backbone of the decision between refund or discount.

There is also a practical development on the payment side: the secure payment system at notary sales ensures that the amount is automatically transferred to the seller along with the sale; the parties must be registered in the same institution's system. In a transaction where the likelihood of a full reversal due to a defective sale is high, having the money flow recorded and auditable benefits both parties.

Conclusion: The Seller's Most Reliable Form of Protection Is Honest Disclosure

The summary of this matter is: the formula for escaping hidden defects is not to hide the defect, but to write it down. Sellers who rely on the TRAMER record, the expert inspection report, and the general acceptance statement at the notary see that none of the three provides the protection they expect. A seller who declares every known defect one by one in the contract is freed from liability; a seller who conceals them, however, may face a refund of the price with interest, a discount proportional to the defect, or even a lawsuit with no statute of limitations if fraud is involved. For thirty years I have said the same sentence: in the second-hand market, the cheapest insurance is an honest listing.

Sources

• Seller's Liability in Defective Used Vehicle Sales 2026
• Seller's Liability in Defective Used Vehicle Sales
• Defects in Sales Contracts: Legal Liabilities
• Hidden Defect and the Seller's Liability
• The Effect of Hidden Defect on Statute of Limitations in Movable Property Sales
• Appraiser's Liability in a Faulty Inspection Report
• Legal Liability of Car Dealerships
• Secure Payment Service - Union of Turkish Notaries
• Consumer Arbitration Committee and Court Lawsuit Process Due to Transmission Failure