MDX front passenger seatbelt is twisted.

Remove the belt retractor, remove the clock spring side cover of the belt spool and give the mechanism a light squirt of WD40. Reinstall the cover, hold the mechanism as close to parallel to the ground as possible and firmly tug on the seatbelt rapidly (like 'jiggling' it) until it frees itself and retracts. These mechanisms are tilt sensitive and will lock themselves if they're not on a near perfect horizontal axis so this will take some patience - and a touch of luck.

remove back of upholstery

How to install a seatbelt in a 2007 GMC envoy in the passenger side

I don't know if this is something you want to get into? You decide. Front Seat Belt Replacement SRS components are located in this area. Review the SRS component locations and the precautions and procedures before performing repairs or service.
NOTE: Check the front seat belts for damage, and replace them if necessary.

Front Seat Belt

1. Make sure you have the anti-theft code for the radio, and then write down the frequencies for the preset buttons.
2. Disconnect the negative cable from the battery, and wait at least 3 minutes before beginning work.
3. Slide the front seat forward fully.

1. Pull the lower anchor cover (A) back, and remove the lower anchor bolt (B).
2. Remove the B-pillar lower trim panel.

1. Remove the upper anchor cover (A), and remove the upper anchor bolt (B).

1. Disconnect the seat belt tensioner connector (A), and detach the harness clip (B) from the retractor (C). Remove the upper retractor mounting bolt (D), and the lower retractor bolt (E), then remove the front seat belt (F) and retractor.
2. If necessary, remove the front seat belt protector (G).
3. Remove the B-pillar upper trim.

1. Remove the shoulder anchor adjuster (A).

1. Install the seat belt in the reverse order of removal, and note these items:
   • Assemble the washers, collar, and bushing on the upper and lower anchor bolts as shown.
   • Check that the retractor locking mechanism functions.
   • Apply liquid thread lock to the anchor bolts before reinstallation.
   • If the seat belt tensioner has been activated, replace the front seat belt protector with a new one.
   • Before installing the anchor bolts, make sure there are no twists or kinks in the seat belt.
   • Make sure the seat belt tensioner connector is plugged in properly.
   • Reconnect the negative cable to the battery.
   • Enter the anti-theft code for the radio, and then enter the customer's radio station presets.
   • Reset the clock.
   • Do the PCM idle learn procedure and the power window control unit reset procedure.

Upper anchor bolt installation
Lower anchor bolt installation

Seat Belt Buckle

1. Make sure you have the anti-theft code for the radio, and then write down the frequencies for the preset buttons.
2. Disconnect the negative cable from the battery, and wait at least 3 minutes before beginning work.
3. Remove the front seat.
4. If equipped, remove the center table.
5. Remove the under seat storage box.
6. Remove the center cover, driver's, passenger's.

1. Driver's: If equipped with seat heater, remove the harness band (A), and disconnect the seat subharness connector (B). If equipped without seat heater, detach the seat belt switch connector clip (C). Detach the seat belt buckle tensioner clip (D), and harness clip (E).

If it is stuck in the seat belt clip (meaning its buckled) then that model year had a seat belt buckle recall for failure. If its stuck in the seatbelt retractor and your seatbelt retractor is floor mounted there is a release pin on the ratchet gear. TO access it you will need to remove the plastic cover located at the floorboard next to the door on the side of the car that is stuck. If its a seat mounted retractor this means the retractor mechanism is located within the seat frame. You will need to view the bottom of the seat of the belt and see the anchor point. Seatbelts must be anchored to frame of car. Trace it into the seat back. If its located in the back of the seat you will need to remove the seat cover to the extent to reach the mechanism. This can be located at the bottom of the seat.. but more than likely is located at the shoulder area. The Seat cover (fabric) is removeable via clips located at the base and tucked into the seat (think hidden bra/pant clip style connectors or zipper) If you have leather seats it is a bit more detailed and more difficult to manage the seat covers. Typically your local Chevrolet dealer mechanic can get this done in 10 minutes (based one experience) and quite possibly wont charge you or charge you minimally. The downside to this is if its locked that means the same gear that locks it in an accident was frozen in place somehow and this typically indicates a dirty dirty spring or broken spring mechanism. The locking pin operates on centrifugal force and activates based on speed by which the seat belt is pulled out. (just a bit of knowledge) Good luck

this is a simple repair many dont know. remove or pull off plastic pillar post cover, seatbelt probably twisted inside. twist it back around so it runs flat and lube slightly with a light lube spray on metal gearing. i had the same problem w mine pk

Check the owner's manual. There is usually a release for the headrest hidden under it. If not, you may need to remove the back seat by pulling it away from the back of the car.

Another fix if all else fails is to carefully remove the trim panel where the seat belt retractor is and then disconnect the retractor, reclaim the belt and then securely refasten it.

SOUNDS LIKE THE RETRACTOR HAS JAMMED..I WOULD NOT RECOMMEND TRYING TO TAKE APART AND TRYING TO RELEASE IT..IT'S A SAFETY ITEM AND SHOULD BE REPLACED

please don't forget to rate, thx.

Retractor and Tongue—Sedan
SPECIAL SERVICE TOOL(S) REQUIRED Description Tool Number Safety Belt Bolt Bit T77L-2100A
NOTE: Safety Belt Bolt Bit T77L-2100-A should be used for safety belt removal and installation.

Removal

1. Remove rear seat cushion. Refer to Section 01-10 .
   

Seat Cushion, Rear Sedan
Removal

1. Apply knee pressure to lower front portion of the rear seat cushion. Push rearward to disengage rear seat cushion pad and frame (600A88) from rear seat cushion front retainers (63370).
   

1. Remove rear seat cushion from vehicle.
   

1. Remove rear seat back. Refer to Section 01-10 .
   

Seat Back, Rear 60/40 Split Bench—Sedan
Removal

1. NOTE: Safety belt bolts do not secure seat back to vehicle.
   
   Remove rear seat cushion as described.
   

1. Fold down back seat and remove two bolts in the center of each seat back striker plates.
   

1. Remove two bolts from outboard rear seat back frame retaining brackets.
   

1. Lift seat back up and pull forward to remove from vehicle.
   

1. Remove panel (52018) and quarter trim panel (31012). Refer to Section 01-05 .
   

Trim Panel, Quarter—Sedan Removal

1. Remove rear seat. Refer to Section 01-10 .
   

1. Pull up on rear section of rear door scuff plate that overlaps lower quarter trim panel.
   

1. Pull lower quarter trim panel away from body.
   

1. Remove safety belt retaining bolt.
   

1. Feed safety belt through lower quarter trim panel.
   

1. Remove safety belt anchor plate-to-sill bolt from quarter panel.
   

1. Remove retractor anchor nut and retractor from rear quarter panel.
   

1. Remove upper seat belt anchor bolt and anchor from upper rear quarter panel.
   

1. Slide anchor plate end of safety belt through the openings in the quarter trim panel.
   

1. Remove outboard front safety belt retractor and tongue (611B08) from the vehicle.
   
   
   
   
   
   Item Part Number Description 1 386277-S190 Bolt (Part of 611B68) 2 31012 Upper Rear Quarter Trim Panel 3 611B60 Retractor and Tongue 4 N800937-S190 Nut 5 389370-S190 Bolt 6 — Rear Quarter Panel (Part of Body) 7 52018 Lower Rear Quarter Trim Panel 8 — Mounting Stud (Part of Body)

1. Remove seat belt anchor bolt and retractor and tongue from rear deck panel.
   
   
   
   
   

Installation

1. To install, reverse Removal procedure.
   

1. Make sure the safety belt webbing is not twisted. If it is, remove the twist.
   

1. Tighten retractor anchor bolt and safety belt anchor plate-to-sill bolt to 34-46 Nm (25-33 lb-ft).
   

1. Check the restraint system for proper operation.
   

1. Remove front seat.
2. Remove adjuster cover. A
3. Slide floor anchor cover.
4. Remove floor anchor bolt. B
5. Remove shoulder anchor bolt. C
6. Remove front and rear kicking plate, then remove center pillar upper and lower garnish.
7. Disconnect seat belt pre-tensioner connector.
8. Remove the screw securing seat belt pre-tensioner retractor, then remove seat belt and seat belt pre-tensioner retractor.
9. Remove bolts securing seat belt adjuster, then remove seat belt adjuster. Reverse procedure to install.J