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Cadillac Escalade EXT and Chevrolet Avalanche Cargo Area

Subject:Cadillac Escalade EXT and Chevrolet Avalanche Cargo Area

Models:2002-2008 Cadillac Escalade EXT
2002-2008 Chevrolet Avalanche



This bulletin is being revised to add the 2008 model year. Please discard Corporate Bulletin Number 01-08-66-006C (Section 08 - Body & Accessories).


The Cadillac Escalade EXT and the Chevrolet Avalanche are designed to give customers unrivaled flexibility. These vehicles deliver on that promise through the many unique and useful ways they can be configured. Not unlike a convertible car, the cargo and passenger area can be opened to the environment. As a result, some care must be exercised to ensure proper performance of the Convert-a-Cab® System.

The goal of the water management system is to ensure that the contents of the cargo area remain dry and protected. To achieve this, these vehicles use an exclusive Water Management System to move water away from cargo that is placed on the rubber cargo mat. The system is designed to manage water removal with or without the cover system in place. This allows customers to use this area as they would a pickup truck bed, as well as carry a wide range of cargo including dirty, wet and otherwise messy items.

The Water Management System is designed to quickly direct water out of the cargo box. With cargo covers in place, there may be certain conditions (e.g.; heavy rains, automated car washes) where some water may be present in the following areas:

    • Drainage area (51 mm (2 in) wide) around the back three sides of the cargo box
    • Cargo box walls
    • Under the cargo mat
    • Endgate
    • Catch cup and gutters

Maintenance Tips

    • Make sure all elements of the Convert-a-Cab® System are properly closed and latched (e.g., midgate, cargo covers, endgate).
    • Keep the drain grates free of leaves and other debris in order to ensure proper water drainage.
    • Periodically wash under the rubber bed mat and inspect the drain holes for debris in order to ensure the Water Management System is operating properly.

Object Number: 800865  Size: MF
    • Gutter & catch cups (1)
    • Upper drain grates (2)
    • Central area of mat (3) is intended to be dry.
    • Water under mat (4) is normal.
    • Rear drains (5)
    • Water drainage area (6) (51 mm (2 in) around the two sides and back of box)
    • Front drains under mat (7)
    • Removable front drain grate (8)