Aston Martin DB AR1 Owner's Manual page 18

A - Before Driving
Interior Door Handles and Locks
To open either car door from inside, pull on the release lever and push
outwards on the door.
Locking the Doors when Inside the Car
If you wish to lock the car doors from inside the vehicle, push the lock tab
on the release lever towards the rear of the car. This will activate the central
locking system and lock both doors and the fuel filler flap.
WARNING: The interior door handle will also be disabled at this time.
Pushing the lock tab towards the front of the car will unlock the doors and
fuel filler flap.
1-A-6