My Buick Regal 98 back seat belt (passenger side) is stuck. Is moving a little bit but that's all, can not use it to restrain a passenger. What should I do? How to take out the original seat belt box? It's in the trunk and is hard to access. thank you. dan

it is a buick,

Check rear brakes and that also means the emergency brake shoes that are located under the rear brake disk . and also check the rear shocks

they have a mechanism called a seat belt cam which is gravity activted with force and usually at 15mph and with sudden braking the cams should lock. If u feel that they have to much play and seem like they dont lock properly id suggest changing both belt assemblies because the cams do wear or get stuck and fail like any other moving part and it is a saftey issue for u so better safe than getn injured with a faulty belt.

should be able to remove the headrest by simply lifting it up depending on the type?

You are going to need to get to the seat belt mechanism itself. The seat belt may be wrapped around the pulley and may just need to be helped back on track. There might also be a finger that is locked into one of the channels. You can manually push this out of the way and reel the seat belt back up.

I have this problem every year with my car, 1993 buick regal custom, 3.8. What happens is it gets cold, warms up a bit, and ice or snow melts and gets in the door, then it gets cold again and it freezes. I go to unlock and open the door from the outside and this problem arises.

There is a vertical rod on the left side of the drivers side, right side of the passenger side, that gets bent, from trying to open the door when that mechanism is frozen up. Just bend it back, a TINY bit and it will start working.

I got tired of taking my door apart every time it happened so i cut a little "door" in the cover thing, so i can get at that bar.

I also tried coating it in grease and that seems to lessen the frequency.

the motor for the passenger side
blend door is shot

Seat belts are usually not repairable.The only thing that can be done is to check and make sure nothing is stuck in it or that it is not twisted.You have the kind that is in the seat back itself.These are a little more difficult to remove from the seat because it is so easy to break the plastic trim covers.Best thing to do if not familiar with auto repair to go to the dealer or auto repair shop that you trust and have them repair it.Good luck.

it is you have to remove belt to get seat up the tab that keeps belt from retracting too far came off

You pop the bottom seat cushion first, some models depending on the trim level used a bolt on each side. Lift up the cushion and you will probably see everything you need to remove the belt, If you still need to remove it, there are 4 blots at the bottm of the backrest of the seat.