Do I need to replace all the car locks if I lost the car key?
3 Answers
If you lost your car key, you need to replace all the car locks. You can go to a 4S shop to replace the locks or get a new key, and delete the data of the lost key. After deletion, the lost key will not be able to start the vehicle. If you lost your car key and don't have a spare key, you need to go to a service station to match a new key. You will need to provide your vehicle license, the owner's ID card, the 17-digit anti-theft key code, and the metal key tooth shape number. Remember to bring the spare key when matching, as both keys need to be matched simultaneously. Daily precautions for car key usage: For ordinary keys: First, you need to release the key immediately after starting the car. If you keep turning it for a long time, it may damage the engine belt. Second, try not to hang the car key together with other keys or accessories. For smart keys: First, smart keys use low-intensity radio waves, so they should not be placed together with electronic devices. Second, avoid throwing or dropping the smart key, as the internal circuits are not very resistant to impact and can be easily damaged by severe collisions.
After losing my car keys, my first reaction was worrying about the car's safety, because anyone who finds the keys could drive my car away. I generally recommend replacing the entire car lock system for better security, including both the door locks and ignition lock, so the old keys become invalid. Although it costs more, possibly several hundred to over a thousand yuan, safety is the top priority, especially since there have been car thefts in my neighborhood—this gives me more peace of mind. If you don't replace the locks and only get new keys, the losses could be greater if the old keys are used by someone else. You can consult a reputable auto repair shop for details, checking the car model's anti-theft system; preventive measures like keeping a spare key at home are also practical. In short, prioritizing safety can save a lot of trouble later on.
From a cost-saving perspective, I don't rush to replace all locks every time I lose a key; getting a new key duplicated is usually faster and cheaper, especially for modern cars with anti-theft chips. Simply visit the dealership to reprogram the new key, which deactivates the lost one, costing only around 100-200 yuan. Replacing all locks is more expensive, involving door locks and trunk locks, potentially costing thousands. I weigh the security risks—only replacing locks if the car is old or has a theft history. Usually, keeping spare keys or installing a tracker can minimize such issues. Consult professional repair shops to assess the most cost-effective solution and avoid unnecessary expenses. Flexibility is key.
