Can the car key still be used when it prompts to replace the battery?

[ValeriaLee]

The car key can still be used when it prompts to replace the battery, but there is no exact time for how long it can last, which depends on the usage. The main function of the car remote key is to remotely lock and unlock the car doors. Other functions include: 1. Closing the windows after turning off the engine: Just press and hold the lock button on the remote key to close the windows; 2. Finding the car in a parking lot: There is a red horn button on the key, which serves both to locate the car and for emergency purposes. The method to replace the car key battery is: 1. Press the button on the upper part of the key's back and pull out the mechanical key part; 2. There are grooves on both sides of the lower half of the key, which are the fixed slots for inserting into the console keyhole; 3. When pressing the remote button, the LED light at the bottom will flash; 4. Press the groove-shaped button on the front and pull outward to remove the battery slot; 5. Tap the lower half of the remote on the table a few times, and the circuit board can be taken out.