Does the car key have basic waterproof functionality?

[DeSimon]

Car keys do not have basic waterproof functionality. Here are some precautions for using car keys: 1. Do not place car keys together with mobile phones, as the magnetic field interference from phones may prevent the car key from functioning properly. Prolonged exposure to phone frequencies can cause malfunction. 2. Avoid exposing car keys to high-temperature and humid environments for extended periods, and do not leave them under direct sunlight. Additional information: If the car key gets wet, do not press any buttons immediately, as this may allow moisture to penetrate the inner layers. Wipe the surface dry, open the casing, remove the battery, and use highly absorbent paper towels or high-concentration alcohol to clean the internal button contacts and other parts. Use a cold air setting on a hairdryer to dry the key—do not use hot air, as the internal circuit board should not be exposed to excessive heat.