Inspect the operation of the front seat emergency release lever as follows in either the In-Vehicle Check or Out Of-Vehicle Check. Inspect the emergency release lever by lifting the lever to the full up position, then release the lever.

The lever must return to the full-down position with no evidence of binding or interference. Replace the inertia lock assembly, where required.

Repeat the inspection after the installation.

Buckle the driver in the restraint system. Buckle an assistant in a restraint system in the rear seat. Have the assistant hold the sides of the passenger seat back, near the top of the seat back, with arms stiff and body relaxed.

Drive the vehicle forward between 10-15 mph (16-24 km/h. In order to stop the vehicle as quickly as possible without skidding the wheels, quickly apply the brakes.

Ensure that the seat back inertia lock engages at the first locking position. Ensure that the top of the seat back does not move forward more than 50 mm (2 in). The driver should lean slightly forward, when performing this operation on the drivers seat back.

Perform the following Out-Of-Vehicle Check, if either the driver or the passenger seat back lock does not engage in the first locking position.

1. Position the seat back in the normal upright position, if the seat is equipped with reclining seat backs. Remove the seat assembly from the vehicle. Place the seat assembly upright on a clean surface.
2. Raise the rear of the seat until the seat back is six degrees forward of the vertical position. In order to hold the seat in this position, place the blocks under the rear of the seat .

In order to properly adjust to this angle, use an angle meter. Purchase an angle meter at a local hardware or department store.

3. Perform the following procedure in order to Inspect the seat back lock:

3.1.	Manually apply enough rearward pressure to the top of the seat back until the hinge arm firmly hits the rearward position stop. Position the back in the normal upright position.

3.2.	Manually attempt to move the seat back forward, with hand pressure at the top of the seat back. Ensure that the seat back is locked, and does not move forward more than 50 mm (2 in).

3.3.	Lift the emergency release lever, with finger pressure. The seat back should release and pivot forward.

3.4.	Visually inspect that the emergency release lever returns to the normal position.

3.5.	In order to return the seat back against the stop in the normal upright position, manually apply enough rearward pressure. Reapply forward pressure when inspecting for relock.

3.6.	When the lock does not engage, or the release lever does not return to the normal position, remove and install with a new assembly.

4. Inspect that the lock hook lever inside the lock swings freely prior to installation, if installing a new lock. Inspect the lock in the above steps, after installation.