2005 Chevrolet Astro Owner's Manual - Page 23
2005 Chevrolet Astro Manual
Page 23 highlights
5. If you installed the safety belt with the release hole facing inward (toward the seat), slide the plastic cover up so you can see the buckle. Disconnect the seat belt. Slide the cover back down and reinstall the belt correctly. Bucket Seats {CAUTION: A safety belt that is improperly routed, not properly attached, or twisted will not provide the protection needed in a crash. The person wearing the belt could be seriously injured. After raising the rear seatback, always check to be sure that the safety belts are properly routed and attached, and are not twisted. Your vehicle may have rear bucket seats with an adjustment release bar located under the front of the seats. These seats can be adjusted forward or rearward with the release bar. Pull the release bar up to release the seat bottom. Slide the seat where you want it and then let go of the release bar. Then try to move the seat with your body to make sure the seat is locked into place. 1-17