unlock all of the doors, either on your key or from inside the car by pressing the unlock button manually. you have to press it twice to unlock all of the doors.
You have to unlock the car doors for the filler cap door to unlock. This means ALL of the doors, not just the drivers.
Does the car door have a key slot and do you have a key for it or not
Pull up the door lock button next to the door glass.
Depending on what year the car is the doors will automatically lock and what would cause them to unlock could be a faulty door latch There is a switch in the lock. probably that switch is broken in your car. If the inside lamp doesn't work when you open the door with that problem, that means the switch is broken.
Use you key to unlock the doors.
you get a 26 vodka and a big crowbar lol
it's a security feature to prevent you from getting locked out with your keys still in your car while it is still running
the tailgate unlocks with the rear doors. Are your rear doors unlocking properly ? is your car battery weak ??
Unlock it from inside the car with the door lock.