Dodge Repair: Heater, dodge durango, seat removal

Question
2001 Dodge Durango with 4.7 engine. The front heat works great but the rear only blows cold air. Looking to access rear heater core and bled door. Blower is working fine. You referenced a response on "refer to 23-Body/interior/d-pillar trim-removal) What is this and where can i get instructions? I have no manual and would like to get this heat issue fixed. Thanks for all your help.

Answer
REMOVAL
Tumble 2nd row seats to cargo position.
Remove 3rd row seat, if equipped. (Refer to 23 - BODY/SEATS/3RD ROW SEAT - REMOVAL)
Remove C-pillar trim. (Refer to 23 - BODY/INTERIOR/C-PILLAR TRIM - REMOVAL)
Remove D-pillar trim. (Refer to 23 - BODY/INTERIOR/D-PILLAR TRIM - REMOVAL)
Remove liftgate opening scuff pad. (Refer to 23 - BODY/INTERIOR/LIFTGATE SCUFF PLATE - REMOVAL)
Remove screws attaching quarter panel trim to C-pillar and D-pillar.
Route 2nd row seat belt through access slot in quarter panel trim.
Grasp quarter panel trim and pull outward to disengage spring clips.
Separate quarter panel trim from vehicle.