2010 Chevrolet HHR Owner's Manual - Page 162

The center position is with the front corners placed in the lower guides and the rear corners placed in the upper guides. Do not load cargo on the panel in this position. The last position is with the front corners in the lower guides, panel sideways, closest to the rear seat for subfloor access. Do not drive while the panel is in this position. There are storage hooks on the bottom of the panel. The vehicle might have a cargo mat that covers the panel/cargo cover. Roof Rack System The vehicle may have a roof rack system. { WARNING: If something is carried on top of the vehicle that is longer or wider than the roof rack- like paneling, plywood, or a mattress- the wind can catch it while the vehicle is being driven. The item being carried could be violently torn off, and this could cause a collision, and damage the vehicle. Never carry something longer or wider than the roof rack on top of the vehicle unless using a GM Certified accessory carrier. 3-50