Yukon 4WD V8-5.3L (2008)
Sunroof / Moonroof Track: Customer Interest
Body - Sunroof Will Not Close
Bulletin No.: 07-08-67-008
Date: November 20, 2007
INFORMATION
Subject:
Diagnostic Information for a Sunroof that will not Close Using "Express Close" Function
Models:
2007-2008 Cadillac Escalade, Escalade ESV, Escalade EXT
2007-2008 Chevrolet Avalanche, Suburban, Tahoe
2007-2008 GMC Yukon, Yukon XL
You may encounter a condition in which the sunroof will not close, especially using the express close function. The glass will typically close part way,
then reverse to a partially open position.
Sometimes, small pieces of debris, including rocks, gum, small sticks or twigs can become lodged in the sunroof tracks. The sunroof function brakes are
unable to travel over the debris, causing the sunroof glass to reverse to a partial open position.
The following diagnostic tips will assist in correcting this condition:
Inspect the sunroof frame/tracks for damage. If none is evident, inspect the tracks for the type of debris described above. If debris is lodged in the tracks
or track grease, remove the object, making sure that sufficient grease remains in the tracks for the system to operate.
Open and close the sunroof using the express open/close function of the switch to determine if the debris was the cause of the reversal condition
described above.
If there is any damage to the sunroof track, the frame must be replaced.
Disclaimer
