Pull the seat forward as if you were folding the seat down. The headrest will unlock and pull down (same procedure to get the headreast up).
Forgive me if you have tried this already , but have you moved the seat all the way back ?
with the power seat switch on the side of the seat (drivers or passengers side). The same switch that reclines the seat back is used 'up' or 'down' for the headrest.
To remove the headrest on a 1994 Plymouth Voyager Van, push the headrest all the way down. Then gently push the headrest back and pull straight up. Some seat models also have a lever on the side of the seat to depress to remove the headrest.
Using the seat back tilt lever lower the seat back as far as it will go. Sit in the back seat. Place your arm around the head rest and pull hard. The headrest can only be removed in this position. Works for driver and passenger front seats.
Press into the fabric of the seat, immediately in front of the base of the headrest. This will release the catch, and the headrest can be adjusted up or down, or removed entirely from the seat.
You push down on the switch nearer the back of the seat. This is the switch which also controls the seat back angle when you push it forward and back.
Make sure your entire body touches the back of your seat and headrest
To remove the headrest in the 1999 Chevrolet Cavalier, first pull the headrest all the way up. You can then push down on the seat back around the base of the headrest. You will find two springs that can be removed with a pair of pliers. Once the springs are removed, just pull up on the headrest.
release the bar and pull. There is a small lever next to each back headrest. Pull the lever UP and the seat will release. Then pull the seat forward.
Remove the four bolts on the bottom of the seat back and the 2 bolts on each headrest. Take out the headrests. Lift straight up.
According to my owners manuel, there is a hidden button on the back of the seat in the middle (in the middle on the right side on the driver's seat and in the middle on the left on the passenger's seat) and you push that and it should come out. And I think the headrest may have to be all the way down for that to work. Hope this helps.
First you need to unbolt the seat back from the seat bottom and remove the back from the car. There is a bolt through the hinge on each side of the seat where you unbolt the back. At the bottom of the seat back there is a long plastic hook and groove clip attached to the seat cover material. Pushing the two halves in opposite directions will unlatch this clip. Then begin rolling the seat cover inside out from the bottom and pull it all the way to the top of the seat. There are velcro strips on each side of the front of the seat back and two horizontal strips that you will peel the seat cover away from. Once the seat cover is clear of the seat back you can see the headrest assembly from the rear. There are two spring clips near the top of the plastic tubes. Remove each of the spring clips and then you can slide the headrest out of the assembly. The plastic tubes can be removed easily once the headrest is out.