All-Weather Cargo Area - Chevrolet Avalanche Owner's Manual

All-Weather Cargo Area

Your vehicle can be driven with the cargo panels on or
off, the midgate up or down, or with the rear glass in or
out. The vehicle has features to help resist the elements
and protect cargo inside the cargo area. Parts of the
water management system, which is designed to quickly
direct water out of the cargo box, include the top drain
grates, side rail channels, catch cups, midgate drain,
cargo area floor drains and the rubber cargo mat.
Even when the water management system is working
properly and the vehicle's cargo cover system is
on, water could still accumulate in areas of the vehicle
during heavy rains and after going through an
automated car wash.
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The areas where water could collect are:
A. Top drain grates
B. Removable front
drain grate (Midgate
drain gate)
C. Side rail channels
and catch cups
D. Front drains
E. Water drainage area
around both sides of
the box and the
tailgate side
F. Rear drains
G. Cargo floor
H. Cargo mat