* Standard Cab: Standard cabs don't have rear seats.
* Extended Cab: Extended cabs have small jump seats behind the front seats. These usually fold up against the front seats. There's typically a lever or latch on the seat itself that allows you to fold it. Check the area around the seat base and backrest for the release mechanism. It might be hidden under a small cover or flap. Consult your owner's manual for the exact location.
* Crew Cab: Crew cabs have full-size rear seats that fold down. The method varies slightly depending on the trim level, but generally involves pulling levers or releasing latches. These levers or latches are typically located on the rear of the seatback itself, possibly near the top or bottom. Again, your owner's manual will show you the precise location and how to operate them. The seatbacks usually fold down individually, and then the seat cushions may either fold up or lift out completely, depending on your truck's configuration.
In all cases, the best resource is your owner's manual. It will have diagrams and clear instructions specific to your particular 2003 Chevy Silverado model. If you don't have the manual, you can likely find a digital copy online through Chevrolet's website or a third-party site that specializes in owner's manuals.
