Dead keypad

My keypad is completely unresponsive, doesn't light up and display when I press any button. All was fine yesterday, I got home from work about 5.30pm, disarmed the system with my code. I usually check the keypad before I go to bed but last night noticed it was dead, about 11pm. Still the same this morning, meaning I cannot arm my system. When I check the app it says all devices are ok. I've had the system under a year, could it be as simple as a change of batteries? Should the system give you a warning that batteries are getting low?

Thanks in advance.