Reclining Seatbacks - Chevrolet 2002 Silverado 1500 Pickup Owner's Manual

Reclining Seatbacks

To adjust the front seatback, lift the manual lever located
on the outboard side of the seat. Release the lever to
lock the seatback where you want it. Lift the lever again
without pushing on the seatback and the seatback will
go to an upright position.
If your vehicle has power seats with a power recliner,
see "Power Seats" in the Index for further information
on how to operate the reclining seatback feature.
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But don't have a seatback reclined if your vehicle
is moving.