How To Open The TOPSTACK Manually

When a topstack is closed manually in an emergency, open the topstack according to the procedure below, and then perform check and troubleshooting procedures.

1. Remove the speaker subwoofer trim of the rear seat back and take out the dedicated tool for the topstack.
2. Remove the woofer and close the valve of the pump motor assembly.
3. Remove the topstack cover clip and turn up the topstack cover so that the topstack linkage can be seen.
   Fig 1: Removing Speaker Subwoofer Trim

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   Fig 2: Locating Dedicated Tool

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4. Insert the dedicated tool into the hexagon hole and turn the tool downward to release the lock of the 5-bow.
   Fig 3: Inserting Dedicated Tool Into Hexagon Hole

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   Fig 4: Releasing Lock Of 5-Bow

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5. Raise the 5-bow and keep it open.
   Fig 5: Raising 5-Bow

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6. Release the tonneau latch lock using the dedicated tool.
   Fig 6: Releasing Tonneau Latch Lock Using Dedicated Tool (1 Of 2)

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   Fig 7: Releasing Tonneau Latch Lock Using Dedicated Tool (2 Of 2)

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7. Raise the tonneau panel, and insert the dedicated tool into the hinge hole to hold the tonneau panel in place.
   Fig 8: Inserting Dedicated Tool Into Hinge Hole

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8. Remove the plug of the topstack storage space and check that the pump motor assembly valve is open.
Fig 9: Placing Dedicated Tool On Rear Speaker Subwoofer Trim
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
9. Remove the J hook and open the topstack by folding it backward from the header area.
10. Remove the dedicated tool and close the tonneau panel.
11. Lock the tonneau latch using the dedicated tool.
12. Install the woofer.
13. Place the dedicated tool on the rear speaker subwoofer trim, and then assemble the speaker subwoofer trim.