The manual sliding doors on my 2007 Nissan Quest are jammed and won't open. What causes this and how can it be fixed?

SOURCE: sliding door won't close. 2004 nissa quest

Mine was doing the same thing. I took it in and watched them fix it and first they steam cleaned the area under the floor where the rollers are. Then they took a spray and lubricated the rollers and the track where the rollers are. then they cleaned the brass connectors on the side of the door where the safety pins touch. I could have saved ALOT of money doing this myself. I hope this helps!

SOURCE: I need to replace my Nissan Quest 2007 in cabin micro filter

I'm going to send you exploded view of the glove box and the in cabin micro filter cover illustration. Remove the two upper screws on the glove box and carefully pry metal clips loose.
Disconnect glove box lamp electrical connector. Do not let glove box assembly hang from glove box lamp harness.
Remove three lower screws and remove damper clip from glove box door. Separate glove box housing and passenger instrument lower panel.
Remove three screws and remove in cabin micro filter cover.
Remove in cabin micro filters from front heater and cooling unit assembly.
Note When installing two new in cabin micro filters ensure that the filters are facing in the direction indicated by the direction arrow for the airflow. Direction arrow is printed on side of in cabin micro filters.
Install in cabin micro filter cover. Reinstall glove box.

Testimonial: "Finaly I found the air flow door with three screws and removed it. The filter will need replacement soon. It is been replaced one time at the dealer."

SOURCE: passenger side--manual sliding door will not open

i have not yet corrected the concern but have found the source. in this particular model the fuel door has a safety lock feature that keeps the door from opening when you are fill the fuel. I have found the lever broken on the switch now all i have to do is figure out how to replace it

SOURCE: 2007 Kia Sedona van power sliding door

i just had to have this fixed on my 07 sedona on the bottom arm for the doors there are litle lock solinoids that go bad i would take it to a dealer to have it checked for the switch you can turn the power off to the doors and open them manualy but they are hard to open because you are pulling the cable instead of the motor doing it and this will not hurt the doors

SOURCE: I have also broke off my 2001 Nissan Quest sliding

the child lock rod may have been extended...
open the driver side door, and with a skinny finger, push that child lock rod back in towards the rear of the sliding door
use the passenger side as reference
once you pushed it in, you can now open it from the inside handle