Doors lock/unlock for no apparent reason. maintenance/repairs. it makes all the doors lock, so if this sensor is malfunctioning, it can cause the doors to lock and unlock unexpectedly, i’ve had this happen before, what you can do, and this can be done at home though it is easier to have a dealer do it(i’d do it myself), what you can do. Doors lock and unlock while driving and also when keys arent even in it. submitted: 9 years ago. category: dodge. show more. show less. ask your own dodge question. the ctm will automatically lock or unlock all doors and the liftgate when either front door or the liftgate is locked or unlocked using a key.. Answers.com