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:
If there is any damage to the sunroof track, the frame must be replaced.