- The door locks are frozen. If you live in a cold climate, it's possible that the door locks have frozen shut. Try warming them up with a heat gun or hair dryer.
- The door lock actuators are faulty. The door lock actuators are the small motors that control the door locks. If they are faulty, they may not be able to unlock the doors. You can try replacing the actuators yourself, or you can take your car to a mechanic to have them replaced.
- The child safety locks are engaged. The child safety locks are located on the rear doors of your car. If they are engaged, the doors will not open from the outside. Make sure that the child safety locks are disengaged before trying to open the doors.
- The door hinges are damaged. If the door hinges are damaged, the doors may not be able to open properly. You can try lubricating the hinges with a penetrating oil, or you can take your car to a mechanic to have them repaired.
If you have tried all of these things and the doors still won't open, you may need to have them repaired by a mechanic.
