Side Rail Channels - Cleaning
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The side rail channels are located on top of both sides of the cargo area.
- Remove the cargo panels or tonneau cover.
- Clean the side rail channels and drains of all debris blockage.
- Flush the side rail channels out with clean water.