Divine Angel said:

my car’s fob battery died last year so I reverted to key locking. Except whenever I unlocked it with the key, the car alarm sounded.

My 2013 Suzuki S-cross hasn’t got a car alarm. It’s a pretty basic car. I could just take Mr buffy’s key and leave mine for him, which he has suggested as he rarely drives my (manual) car these days. But really, it’s no big deal to just lock from the driver’s door.