Outlander 2016 Diesel 3 beeps when idle just before pull away

Hi all,

This is my first post so hopefully I have posted in the correct place. If it would be better posted elsewhere within the forum, please let me know.

I have a Mitsubishi Outlander 2016 GX4 Diesel.

It has just started beeping (1 long beep followed by 2 short beeps). It happens every time the car is just about to move.

I have a video of it but can’t seem to upload it. If anyone knows if uploading is possible, let me know and I’ll get it uploaded.

Do any of you guys know what the issue could be? Any advise would be much appreciated.

Thanks in advance