What to Do If You Lose Your Car Keys?

2 Answers
WilliamFitz
07/25/25 5:56am
After losing the keys, the lost keys can still unlock the car doors but cannot start the engine. Therefore, during the period when the keys are lost, try not to leave valuables in the car and replace the entire car lock as soon as possible. Take the following measures: Use the spare key. Generally, cars now come with two keys, one for regular use and the other as a spare. When the regular key is lost, the spare key can come in handy. So remember, never leave the spare key in the car; always keep it in a safe place at home. Professional locksmith services. If the vehicle is far from the spare key or the spare key is also missing, you will have to call a professional locksmith to unlock the car. Usually, relevant documents such as ID card and vehicle registration certificate are required. Get a new key from the 4S store. Every car comes with an anti-theft code. The owner only needs to provide the vehicle registration certificate and personal identification to the 4S store, which can then retrieve the anti-theft code based on the provided information and configure a new key. Additionally, the data of the lost key can be erased, meaning the lost key will become invalid and cannot start the vehicle, though it can still unlock the doors. Therefore, the 4S store may also recommend replacing the entire car lock to ensure security.
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StJohnny
08/10/25 5:57pm
Last time I left my car key at the gym, I was sweating bullets! Immediately dug out the spare key—thankfully the elders at home kept it safe. Drove straight to the 4S shop, where the mechanic said I needed all my documents to get a replacement, with the vehicle license and ID card checked strictly. The new key cost over 800 yuan, but what hurt most was the old key getting its access revoked—even if found, it’d be useless scrap. Actually, many cars now support unlocking via mobile apps; my Tesla got me through two days relying on my phone. I’d suggest all car owners get a key tracker—I later bought an AirTag and tucked it into the key case, never lost it again.
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