RAM 2500 2019 Owner's Manual page 157

6. Unfold the center and rear panels to the intermediate
position.
NOTE:
The vehicle cannot be driven when the Tonneau Cover is in
this position.
Intermediate Position (Vehicle Cannot Be Driven)
GETTING TO KNOW YOUR VEHICLE
NOTE:
When folding the center and rear panels, the sections MUST
be held together to avoid damage to the cover material.
Incorrect Folding — Will Cause Damage
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