Reclining Seatbacks - Pontiac Aztek 2003 Owner's Manual

Reclining Seatbacks

To adjust the seatback, pull up on the recliner lever
located on the outboard sides of both the driver's and
front passenger's seats. Release the lever to lock
the seatback where you want it. Push and pull on the
seat to make sure it's locked into position. Pull up on the
lever, and the seat will go to its original upright
position.
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But don't have a seatback reclined if your vehicle is
moving.