Description And Operation: Operation
The power sunroof system can only be operated when the vehicle ignition is set to ON/RUN. If the sunroof is in operation when the vehicle ignition is switched to START the sunroof will stop all motion. The sunroof switch will need to be pressed again to continue sunroof operation after the engine has started. If the sunroof is in operation when the vehicle ignition is switched to OFF all sunroof motion will stop immediately.
The sunroof has two modes of operation, Manual and Express:
- Manual Mode is active when the sunroof switch is pressed and held for a time >0.8 seconds. When in manual mode the sunroof or sunshade operation will stop whenever the switch released.
- Express Mode is active when the sunroof switch is pressed & released in a time <0.8 seconds. Express mode operation is a convenience feature that will automatically open or close the sunroof. Pressing any of the sunroof switches while express mode is active will immediately stop sunroof operation. The sunroof also provides an obstacle detection feature during express mode operation which automatically reverses the sunroof when it encounters an obstacle within the roof opening. Express mode operation for vent is not available when vent operation is initiated when the glass is in a slide open position.
A switch cluster mounted in the overhead console controls sunroof operation. The sunroof switch cluster consists of two push pull switches (the left-side of switch cluster controls the sunshade, the right-side controls the glass) with a push button in the center of the two halves of the switch assembly for glass vent function. Pulling the sunroof switch down commands the sunroof closed. Pushing the sunroof switch upwards commands the sunroof open. Pressing the center push button commands the front sunroof glass panel into the vent position. If sunroof glass and sunshade are closed and one of the sunroof open/vent push buttons are pressed, the system will automatically retract the sunshade to behind the front glass opening (mid-point) before opening or venting the sunroof glass pane. Therefore, the sunshade can never cover the movable glass pane opening unless the pane is in the fully closed position.
The sunroof has two programmed slide open stop positions; comfort stop position and full open position. The comfort stop position is approximately 40 mm (1.6 in.) 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. When opening the sunroof in either manual or express mode operation the sunroof will always stop at the comfort stop position. The sunroof open switch must be pressed again to continue to the full open position.
The below chart describes the normal sunroof response to glass control switch inputs for both Express and Manual operation (unless noted) when the glass is in various positions.
| Initial Glass Position | Glass Closed Position | Glass Comfort Stop Position | Glass Slide Full Open Position | Glass Vent Position | ||
|---|---|---|---|---|---|---|
| Glass Switch Actuation | OPEN | Sunshade opens to mid position (if closed) then glass slides open to comfort stop position | Glass slides open from comfort stop to full open position | No movement | Glass slides open from the vent position | Sunroof Response |
| VENT | Sunshade opens to mid position (if closed) then glass cycles to vent position | Glass first slides forward and stops at vent position (Manual Mode only) | Glass slides forward and stops at vent position (Manual Mode only) | No movement | ||
| CLOSE | No movement | Glass slides to closed position | Glass slides to closed position | Glass cycles to the closed position |
For sunshade operation pulling the sunshade switch downward commands the sunshade closed. Pressing the sunshade switch upward commands the sunshade open. When opening the sunshade it will automatically stop at mid-position, the sunshade open switch must be pressed again to continue to full open position. When attempting to close the sunshade and the glass is in the vented or open position the sunshade will stop at the mid-position. Pulling the sunshade close switch again will automatically close the glass; once the glass has fully closed the sunshade will automatically cycle to the closed position.
The below chart describes the normal sunroof response to sunshade control switch inputs for both Express and Manual Mode operation when the sunshade is in various positions.
| Initial Shade Position | Shade Closed | Shade Half Open | Shade Full Open | ||
|---|---|---|---|---|---|
| Shade Switch Actuation | OPEN | Sunshade cycles to half open position | Sunshade cycles to full open position | No movement | Sunroof Response |
| CLOSE | No movement | Glass first cycles to closed position (if glass open or vented) then sunshade cycles to closed position |
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