The beeping noise for when a door is ajar is always beeping even when all doors are closed and im driving. What do i do to fix this?

check all 4 doors for a broken pin switch, sounds like one is damaged.

clean and lub your door closing mech.

check connector on door.it may be dirty or stuck.open door and it should be on side of door

one of the latch sensors is bad

It appears that one of the door operated switches is making contact even though the door is closed. This is indicated by the interior light coming on and the beeping noise is alerting that the vehicle has a door not closed properly when the vehicle is in motion.

It could mean the door catch is slightly out of adjustment allowing door to sit slightly away from body. Try checking each door for a loose fit by pushing the closed door in, especially the driver's which gets the most use. There should be only a little movement as the sealing rubbers are squeezed a little more. If door catches are tight then it may be that the rubber pad attached to the door that pushes on the door switch button has compressed and is allowing switch to make contact.

You will need to spray each door latch including the rear hatch liberally with WD 40 or spray lubricant on the latch and open and close each door several times after spraying. This will usually be sufficient to get the door sensors to detect when you have closed the doors. If this doesn't do it, it will hep to figure out which door is intermittently causing the door ajar light to stay on.

um yeah replace the door ajar switch

there should be a switch mounted( or more than one) in the door jamb that tells the car when the car door is open...i will probably look like a little plastic plunger...might be broken off or bad internally

Try spraying WD-40 into the door latching mechanism (door side). I learned this fix after two battery replacements, but have only had to spray twice in the more than seven years of ownership

i have same issue with my 01 does it when you first start the car and about 30 minutes after driving found online it is my airbag light in dash is blown havent changed it yet so im not sure