1999 honda crv seatbelt

You can't it is not designed that way. The seatbelt mechanism is damaged and needs to be replaced.

Sorry about this.
The only way to know if this is covered under warranty is for you to confirm whether your warranty period is still active or not.
Warranty period active; take your car back to the dealer and get the seatbelt recoil fixed.
Warranty period inactive: you have to bear the cost to get the seatbelt recoil fixed orrepaired.

sorry. only answer is replacement.(no user seviceable parts inside.)
bet that dont get me 4 stars.......

if you can pull the belt out, it should go back on its own, otherwise its a new belt,its a "no fix" item.

There is a ball inside that when you brake moves and locks the seat belt. Your best bet is to drive and see if it locks when you brake hard. If not replace it. Some cars wont lock when you pull on them only when inertia takes over do they lock.

the seatbelt retractor unit will have to be replaced.

Not a fix but just pull it over the seat and fasten it...At least it want go off while driven alone.

possibly the seat belt has been pulled out all the way and the locking mechanism has been activated, if this is the case seat belt must retract all the way back in to reset this function

To fix that scenario, I have to get to the bolts anchoring the seat belt which can be found under the rear seat. Which a socket wrench, remove the bolt freeing the seatbelt to allow you room to release the lock to pull the belt out from the top of the back seat. You may now push the back seat into its upright position and then refasten the seatbelts with the bolt to it's former position under the back seat.

When I in later times need to lower the back seat, I will either loop the seatbelt around the head rest or tie two belts together allowing for slack in case the belt tightens again when trying to move the seat back to its original position.

.....Very frustrating!!!