NHTSA lists 3 safety recalls covering the 1997 GMC Sierra. Open recalls don't stop you from selling or junking the car, but check your VIN at nhtsa.gov/recalls to see which apply to yours.
Fuel System, GasolineAug 1998 · NHTSA campaign 98V187000
Vehicle description: crew cab pickup trucks. The front, inner corner of the fuel tank can contact the body sill either intermittently or constantly. This movement can cause a discernible noise and, over time, can wear a hole in or crack the fuel tank at point of contact.
Risk: This condition can result in fuel leakage and a distinct fuel odor if the tank were filled above the level of the hole or crack. In the presence of an ignition source, a fire could result.
SeatsOct 1997 · NHTSA campaign 97V176000
Vehicle description: light duty pickup trucks. One or two of the front seat mounting bolts were not installed. This does not comply with the requirements of fmvss no. 207, "seating systems."
Risk: In the event of a vehicle crash, a seat with this condition will not protect the occupant as required by the standard.
SeatsMar 1997 · NHTSA campaign 97V037000
Vehicle description: extended cab and 2-door utility vehicles equipped with reclining seats and the easy-entry feature. These vehicles exhibit a condition in which a pinch point exists in the recliner mechanism that can trap and pinch a person's hand or finger(s) when the easy-entry feature is activated.
Risk: This pinching can cut the hand or possibly sever the finger(s) without prior warning.