The locking wire is too tight.

Loosen the locking wire tension. This will provide full engagement of the lock bar in the locking slots of the adjuster's lower channel.

The adjuster lock bar spring disconnects or is broken.

Connect the spring or install a new spring.

The adjuster lock bar sticks.

Lubricate the lock bar pivot.

The adjuster lock bar binds.

Eliminate the cause of the binding or replace the adjuster.

The locking wire is too loose or disconnected.

Tighten the locking wire. This will allow the lock bar to disengage from the locking slots in the adjuster's lower channel when the lock control lever is activated.

The adjuster lock bar sticks.

Lubricate the lock bar pivot.

The adjuster lock bar binds.

Eliminate the cause of the binding or replace the adjuster.

Inoperative horizontal and/or vertical solenoid in the transmission.

Refer to Power Seats System Check Power Seats System Check.

Damaged, broken or inoperable:

Replace the damaged, broken or inoperable solenoid part with new components.

Excessive clearance at the vertical actuator tension spring.

Grind down the top of the vertical actuator shoulder nut 0.40-1.19 mm (0.0156-0.0468 in) maximum.