What is the battery model for Volkswagen car keys?

[McChloe]

The battery models for Volkswagen car keys are CR2016 and CR2025. Below are situations indicating that your car key battery needs replacement: Shortened remote control range: If the key only responds when very close to the car door, this is likely due to a drop in battery voltage, which weakens the remote control's signal transmission capability, resulting in a shorter operating range. Occasional malfunction: If you need to press the button multiple times to unlock the door or get a response, this often indicates that the remote battery is nearly depleted. Dim indicator light: Observe the indicator light on the key. If it appears dimmer than usual or flickers when you press the button, this also suggests the battery is running low.