GM Service Manual Online
For 1990-2009 cars only

The front seats are secured to the floorpan by two front hook attachments and two rear bolts installed to nuts welded to the floorpan. Do not attempt to change the designed seat adjuster to floorpan anchor provisions as it could affect the performance and safety of the seat system.

The manually operated two-way front adjusters provides only fore and aft movement of the seat. When the seat adjuster handle located on the front seat is pulled up, the seat adjusters unlock, permitting travel of the seat. When the seat is in the desired position and the seat adjuster handle is released, the seat locks into place.

A power operated six-way seat adjuster is available for the driver's and passenger's side. The adjusters are activated by three 12-volt, reversible, permanent magnet motors with a built-in circuit breaker. The motors are energized by a metaphoric switch bolted on the seat finish panel.

Three motors drive the front and rear vertical actuators and a horizontal actuator. When the adjusters reach the limit of travel, torque is absorbed through the rubber mounted grommets located between the motor and the support. An overload relay is provided in the circuit and will open should excessive stall torque be applied.

All front seats have seat back head restraints on the driver's and passenger's seat back. The head restraints are designed so they cannot be removed from the seat back without first inserting a small rounded tool inside the head restraint guide to release the locking tab.

Seat cushions and backs have formed foam pads which fit the contour of the seat back frame and also the designed contour of the seat cushion frame.

The front seats are equipped with a reclining mechanism on both the driver's and passenger's side. The recliner lever is located on the outboard side of the seat cushion. When the lever is pulled upward, the spring loaded dual linear reclining unit located in the seat cushion frame is released, allowing the seat back to be pushed rearward or allowing the spring loaded reclining unit to bring the seat back forward.