How long can the car key battery last after the replacement reminder appears?

[DeDavid]

Here is an introduction about the car key battery replacement reminder: 1. If the dashboard displays a low battery warning for the key, it indicates that the key battery is about to run out. There is no exact time frame, as it depends on usage. 2. For example, if you use the key to lock and unlock the vehicle once in the morning and once in the evening, it can last up to about a week. 3. If you use it many times a day, the battery may run out in two or three days. Here are some measures if you don't have time to replace the remote key battery: 1. First, use a spare key as a replacement and visit a service station for replacement or purchase a battery yourself when you have time. 2. The methods for replacing key batteries for various brands can be found online. 3. Use the emergency key operation: unlock the door with the mechanical key, find a spot inside the car marked with a key symbol, place the key against it, and hold the ignition switch to start the vehicle in an emergency.