Can a car key still work after falling into water?

[LaWeston]

Car keys can still work after falling into water as they have waterproof features. Precautions to take when using a car key after it has fallen into water include: 1. Do not press any buttons on the remote immediately to prevent short-circuiting and burning out the key's chip; 2. The key should be disassembled to cut off power, dried with a hair dryer, and then tested. A car key is a tool for switching and starting the car, and its functions include: 1. Long-pressing the lock button on the key after turning off the engine and exiting the car can remotely close the windows; 2. Long-pressing the trunk unlock button will automatically pop it open; 3. Pressing the car finder button will make the car's horn sound and the hazard lights flash, making it easier to locate the car quickly in crowded parking areas; 4. Pressing the door unlock button once opens only the driver's door, while pressing it twice unlocks all other doors.