The rear door safety locks prevent passengers from opening the rear doors from inside the vehicle.
Manual Safety Locks

If equipped, the safety lock is located on the inside edge of the rear doors. To use the safety lock:
1. Insert the key into the safety lock slot and turn it so the slot is in the horizontal position.
2. Close the door.
3. Do the same for the other rear door.
To open a rear door when the safety lock is on:
1. Unlock the door by lifting the rear door lock, using the power door lock switch, or with the Remote Keyless Entry (RKE) transmitter.
2. Open the door from the outside.
To cancel the safety lock:
1. Unlock the door and open it from the outside.
2. Insert the key into the safety lock slot and turn it so the slot is in the vertical position.
3. Do the same for the other rear door.
Lockout Protection
DoorsRear Wheel Speed Sensor Replacement
Removal Procedure
Warning: Refer to Brake Dust Warning.
Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle.
Remove the tire and wheel assembly. Refer to Tire and Wheel Removal
and Installation.
Remove the rear wheel speed sensor ...
Control Solenoid Valve and Transmission Control Module Assembly Replacement
Removal Procedure
Remove the transmission control valve body cover.
Refer to Control Valve Body Cover Replacement.
Disconnect the output speed sensor electrical connector (2).
Disconnect the shift position switch electrical connector (3).
Disconn ...
Transmission General Description
The Hydra-matic 6T30/40/45/50 is a fully automatic, 6-speed, front-wheel drive,
electronic-controlled transmission. It consists primarily of a 4-element torque
converter, a compound planetary gear set, friction and mechanical clutch assemblies,
and a hydraulic pressurization and control system ...