
You can sell a car with only one key left, but the buyer's risk will increase, and the owner needs to negotiate specifically with the buyer. The documents required for the transfer of a used car include the registration certificate, driving license, and ID card from the original owner. The buyer needs to provide an ID card. Here are methods to check if a used car has been in an accident: 1. Check the glass production date: Normally, glass is not replaced, so you can check the production date of the glass. The date is usually in the form of numbers and dots, with the numbers representing the year and the dots representing the month. 2. Examine the wear on the frame: If the car has been in a major accident, the body frame will have varying degrees of dents and misalignment, so you can determine if the car has been in a major accident by examining the frame's condition. 3. Check the screws: Look at the screws on the hood, radiator support, and door connections. If any of these screws show abnormalities, it is likely that the car has been in a major accident. 4. Review the maintenance records: You can check the maintenance records at a 4S shop. Any accident car repaired at a 4S shop will have a system record.

I've bought and sold several cars, and it's quite common to have only one key left. Generally, you can still sell it without much trouble. Don't worry too much about this, but pay attention to the details. Buyers usually focus more on the actual condition and pricing of the vehicle rather than the number of keys. You can mention upfront in your car listing that there's only one key, so potential buyers are aware and it reduces disputes later on. If you encounter picky buyers, they might negotiate the price down since they'll need to spend extra money on a spare key—especially for modern cars where a new key can cost hundreds, while older cars are cheaper. My suggestion is to consider spending a bit to get a spare key before selling; this makes the car easier to sell and might even fetch a better price. Remember, before selling, give the car a good wash and perform minor maintenance to boost its appeal. The key issue is minor—don’t let it affect your overall sales strategy.

As an average car owner, I believe selling a car with just one key is completely fine. I've been through this when selling my old car—I lost the spare key, but the deal still went smoothly. The key is honest communication: mention upfront during price negotiations that there's only one key. The buyer might haggle a bit since lacking a spare can be inconvenient (e.g., losing the key would be a headache). Also, this isn’t a technical flaw—it doesn’t affect vehicle registration or transfer, and legally, two keys aren’t required. However, luxury car buyers may care more because replacing smart keys is expensive, potentially derailing the deal. Before selling, weigh whether getting a new key is worth it. If not, proceed as planned—you’ll always find a buyer.

From a practical standpoint, a car with only one key can definitely be sold—I've seen many such cases. When selling a car, the number of keys is secondary; what truly matters is the vehicle's driving condition and overall state. Just list it on used car platforms or approach dealers as usual, honestly informing buyers that only one key remains. Most will accept it; some might not even mind and simply negotiate a small price reduction as compensation. Look at it another way: replacing a key isn't cheap—smart keys cost hundreds to over a thousand, while standard ones run tens of dollars—but don't overthink it. Try selling first. If the buyer insists, you can negotiate cost-sharing. Also, note the security risk: having just one key increases vulnerability. If it's lost or stolen, handling the situation becomes troublesome, so buyers may request proof or a signed contract. Selling the car smoothly is the priority—the key issue is minor.


