What to do if the car key gets wet?
2 Answers
It is usually a spare key with an anti-theft chip inside. This anti-theft chip is waterproof, so this type of key is not afraid of being dropped in water. You can only use its mechanical key to enter the car in an emergency. The anti-theft chip in the remote key is also waterproof, so it can also be used to start the engine in an emergency.
Last time my car key fell into the swimming pool, I immediately retrieved it and performed a three-step treatment. First, I opened the back cover and removed the battery to prevent short-circuiting, which is crucial to avoid damaging the circuits. Then, I used a dry towel to wipe off surface water, especially from the gaps around the buttons. Next, I prepared a bag of uncooked rice or desiccant, placed the key components inside, and sealed it for 24 hours to absorb moisture—never use a hair dryer or high heat to dry it. After that, I reassembled the battery and tested the unlocking function. If it doesn't work, you'll need to visit a professional key duplication shop to repair the circuit board, usually for just a few dozen yuan. For daily use, it's recommended to use a waterproof case for the key to protect it from rain. It's also a good idea to keep a spare mechanical key in the car for emergencies, so you're not left scrambling.