Dual Pane Sunroof

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

The dual pane sunroof consists of a front sliding glass panel and rear stationary glass panel which allows additional sun light and/or ventilation into the interior of the vehicle. The system also includes a power sunshade which can be closed when additional sun light is not desired.

The dual pane sunroof system allows the sunroof front glass to be opened, closed or placed in the vent position electrically by actuating switches in the overhead console. The sunroof system receives battery feed through a fuse in the Power Distribution Center (PDC) and an ignition wire to determine vehicle ignition state. The sunroof will only operate when the ignition is set to ON/Run, Accessory or while the Accessory Delay system is active. The power sliding sunroof system does not communicate through Controller Area Network (CAN) Bus Circuit. Therefore, the power sunroof system cannot generate Diagnostic Trouble Codes (DTC's).

The dual pane sunroof system features express operation (press & release switch) convenience feature that will automatically open or close the sunroof or sunshade. The glass features two programmed stop positions; comfort stop position and full open position. The comfort stop position is approximately 135mm forward of the full open position and has been optimized to minimize wind buffeting in the interior when the vehicle is driven with sunroof open and all side windows closed. In addition the power sunroof system also features an obstacle detection feature which automatically reverses the sunroof or sunshade when it encounters an obstacle within the roof opening during express close operation.

The sunroof glass can be cycled to the following positions:

Vent position - The sunroof glass panel tilts upward one inch at the rear for the vent position.
Comfort Stop position - Slide open position 135 mm forward of full open position
Full Open position - Slide open position in which front glass slides completely under rear glass.
Closed position - The sliding glass panel seals flush with the roof in the closed position to eliminate wind noise.

The dual pane sunroof features a mesh fabric wind deflector which deploys when the glass is in a slide open position to minimize wind noise in the interior.

The electric motors operate the sliding glass panel or the sunshade through the use of mechanical drive cables, mechanical linkages and guides. For further mechanical information, refer to MOTOR, SUNROOF .

The major components of the dual pane power sunroof system include:

Fixed Glass Panel - Refer to SUNROOF, DUAL PANE, DESCRIPTION .
Frame and Mechanism - Refer to SUNROOF, DUAL PANE, DESCRIPTION .
Motor Assemblies - The dual pane sunroof and power sunshade motor assemblies are secured to the rear of the frame member of the sunroof, between the outer roof panel and the headliner.
Power Sunshade - Refer to SUNROOF, DUAL PANE, DESCRIPTION .
Sliding Glass Panel - Refer to SUNROOF, DUAL PANE, DESCRIPTION .
Switches - The dual pane power sunroof and power sunshade switches are integral to the overhead console centered in the headliner between the windshield upper header and the front of the sunroof opening.
Wind Deflector - Refer to SUNROOF, DUAL PANE, DESCRIPTION .

The sunroof circuit is protected by a fuse located in the PDC.