Section 391 (Power Top/Sunroof (Service Information) 2500 Hd & 3500 Hd): Description: Description
| 1 - MECHANISM COVERS (2) | 10 - MOTOR FASTENERS (3) |
| 2 - RIGHT HAND GLASS GUIDE | 11 - SUNROOF MOTOR/MODULE ASSEMBLY |
| 3 - GLASS FASTENERS (4) | 12 - ALIGNMENT HOLE |
| 4 - GLASS ASSEMBLY | 13 - ASSEMBLY FASTENERS (8) |
| 5 - DRAIN CHANNEL | 14 - ALIGNMENT HOLE |
| 6 - SUNSHADE | 15 - WIND DEFLECTOR |
| 7 - LEFT SUNROOF GLASS GUIDE | 16 - GLASS GUIDE FOOT |
| 8 - WIRE HARNESS | 17 - WIND DEFLECTOR STRAP SCREWS (2) |
| 9 - SUNROOF ASSEMBLY |
The power sunroof system allows the sunroof to be opened, closed or placed in the vent position electrically by actuating a switch in the overhead console. The sunroof system receives battery feed through a fuse in the Power distribution Center (PDC). The sunroof will operate normally with the key in the "RUN" or "ACCESSORY" position.
The sunroof glass panel tilts upward at the rear for ventilation and slides rearward under the roof when open. The panel seals flush with the roof in the closed position to eliminate wind noise. The sunroof includes a manual-sliding sunshade to cover the deep-tinted glass panel.
In addition to the standard power sunroof operation, this vehicle offers several additional features. There is an express (one-touch) opening and closing feature as well as Excessive Force Limitation (EFL). The EFL function detects obstacles trapped between the glass and the vehicle roof during a closing motion. Upon sensing an obstacle the EFL function will reverse direction of the glass to allow removal of the obstacle.
The main components of the power sunroof system are:
- The motor/module assembly
- The power sunroof glass and frame assembly
- The power sunroof switch
- The manual-sliding sunshade