Q: I have a 2011 Cadillac CTS, and my trunk will not open with the remote button inside the car or with the key fob. When I use the buttons, I can hear it clicking at the latch. Can you tell me what’s ...
Modern cars have swapped regular keys for key fobs, and most of them use a CR2032 button cell battery. How can you tell if it's weak? How long do they last?