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Post Info TOPIC: Sun roof won't close fully


RV-Dreams Family Member

Status: Offline
Posts: 244
Date:
Sun roof won't close fully


06 GMC 3500 the sun roof worked fine until yesterday, It will close all but the last 3/4in. where it drops down to be flush with roof line. Checked the track  and all is clear and looks to be well lube. Anyone else run into this issue??  thanks for any help.  Safe travels.



__________________

06 GMC 3500 SLT  Duramax, Allison.

09 Montana 3665re

Safe travels to all, Take each day as a gift for that is truly what it is.

Cert. RVIA Tech 11/24/16 



RV-Dreams Family Member

Status: Offline
Posts: 36
Date:

Hi Chris,

If your sunroof is factory-installed, the following steps may help.

To “reset” the sunroof control module, first make sure the key is out of the ignition and the driver’s door is Open. Then remove Fuse S/ROOF (25amp) from the underhood electrical center (located on the driver’s side - there is a label on the underside of the cover indicating the fuse location) and leave it out for at least one minute. Reinstall the Fuse. Then try operating the sunroof.

If this doesn’t work, I know you didn’t replace your sunroof, but the procedure below taken from GM Service Information may reset your sunroof operation.

Sunroof Motor/Actuator Synchronization
The sunroof control module uses position sensor inputs to establish soft stop locations for the sunroof panel several millimeters ahead of its physical limits. After replacing sunroof system components which may affect the position of the glass panel to the seal in the closed position, the soft stop locations must be reset. Perform the following steps after the repairs are completed.

1. Close the sunroof to the current soft stop location.
2. Press and hold the sunroof switch in the close position.
3. After 2 seconds the sunroof panel will bump to the hard stop.
4. Continue holding the sunroof switch in the close position for 3 full seconds after the sunroof panel has hit the hard stop.
5. Press and hold the sunroof switch in the open position until the sunroof panel stops in the full open position.

 

Hopefully one or both of these procedures will solve your problem!



__________________
Jim and Linda, New Hampshire
2003 Adventurer 35U (Workhorse W22), 2006 Saturn Vue toad, Blue Ox Alexus Towbar, US Gear Unified Tow Brake


RV-Dreams Family Member

Status: Offline
Posts: 244
Date:

Jim, thanks for the response. Did some googling on it and found that there are settings or presetting. I got it to close fully.

__________________

06 GMC 3500 SLT  Duramax, Allison.

09 Montana 3665re

Safe travels to all, Take each day as a gift for that is truly what it is.

Cert. RVIA Tech 11/24/16 

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