GM Service Manual Online
For 1990-2009 cars only

All-Weather Cargo Area SUT

The vehicle has features to help it resist the elements and protect cargo inside the cargo area.

Even when the water management system is working properly and the cover system is on, there can be instances when water may be present in the drain holes. See "Cargo Area Floor Drains" later in this section for more information.

Removal and Cleaning

To ensure that the water management system performs properly, make sure that the midgate, tailgate and cover system are fully closed and that each part of the water management system is clean and not blocked with debris. Follow the instructions given next in this section for the proper procedures on cleaning each part of the water management system.

Side Rail Channels


Object Number: 1434469  Size: B1

Both side rail channels are located on top of the roof and the cargo area. Flush them out with clean water if debris collects inside of them.

When loading cargo into the cargo area, be careful not to damage the rails.

For more information on this feature see Luggage Carrier.

Cargo Area Floor Drains


Object Number: 1423238  Size: B4

For vehicles with a cargo mat, located under it are four cargo-area floor drains (A) near the sides of the cargo area. These drains should be cleaned periodically to allow water to exit the cargo area.

The cargo mat has cutouts for the drains. Flush the drains through the cutouts, but if the cargo area is extremely dirty lift up the edges of the cargo floor mat or take the whole mat out and flush the drains with water. The drain grates can be removed to clear any debris that has accumulated in the drain.