Where to replace the car key battery when it runs out of power?

[DelBrynlee]

When the car key runs out of power, you can go to a 4S shop or replace the battery yourself. The method for self-replacement is: 1. Take out the mechanical key; 2. Insert a flat-head screwdriver into the 'open' position at the bottom and pry it up and down; 3. Once a gap appears, use the screwdriver to pry open the key along the gap; 4. Remove the old battery and replace it with a new one; 5. Assemble the key. The working principle of the car key is: it emits a weak radio wave from the owner, which is received by the car antenna. After the electronic controller identifies the signal code, the system's actuator performs the action of unlocking or locking. The functions of the car key are: 1. Remote control of door locks; 2. Long press the lock button after turning off the engine to close the windows; 3. Press the horn-shaped button to locate the car.