Car keys. That’s the mental checklist ... a butter knife or another key. To replace the battery: Find the notch on the fob.

Q: I recently replaced the original battery in the key fob for my 2010 Kia Sedona. The car does not respond to the fob now. The local battery shop confirms that the fob is working properly.

These systems tend to burn through battery keys more rapidly than traditional remote locking fobs, because the car and the key are in constant communication as you drive – that’s how you get a ...