We have 2 keys for our XC90.
Car starts every time with my key.
My wife has had the car refuse to start (or even turn over) at some random times. Initially i thought it was the car battery on its way out so replaced that as it was about 5 years old, but that didn't fix it.
We have also changed the battery in the remote, but that didn't fix it.
What is the next thing to try, or do i need to visit a Volvo dealer?