Doors will not lock when shifting out of park and will not unlock when car is put in park.

Do they work with the key fob, do you have one of those? They lock when put into gear an unlock when put into park because the BCM - body control module does that .

Door Lock System Components
The power door lock system consists of the following components:
• Driver door lock switch
• Front Passenger door lock switch
• Body Control Module (BCM)
• Relays: Driver Door Unlock -- on vehicles with RFA, Door Unlock, and Door Lock
• Door Lock fuse 15A
Door Lock System Controls
The power door lock system can be controlled by any of the following:
• A power door lock switch activation
• A keyless entry command -- if equipped with keyless entry


Driver and Passenger Door Lock Operation
When any of the door lock switches is pressed to the lock position, the BCM door lock/unlock signal circuit changes from an idle voltage of ~3.4 volts to 0.0 volts generating a lock command. The BCM then applies battery positive voltage to the Door Lock Relay, which in turn applies battery positive voltage to the Door Lock Actuator lock circuit of all the Door Lock Actuators. Since the Door Lock Actuator unlock circuits are held to ground through the resting Door Unlock Relay(s), the actuators execute the lock command, locking the doors.
The lock function can also be accomplished by the BCM having received a keyless entry door lock command, if the vehicle is equipped with keyless entry.


Driver and Passenger Door Unlock Operation

When any of the door lock switches is pressed to the unlock position, the BCM door lock/unlock signal circuit changes from an idle voltage of ~3.4 volts to ~1.7 volts generating an unlock command. The BCM then applies battery positive voltage to the Door Unlock Relay and the Driver Door Unlock Relay when equipped with keyless entry, the relay(s) in turn apply battery positive voltage to the Door Lock Actuator unlock circuit of all the Door Lock Actuators. Since the Door Lock Actuator lock circuits are held to ground through the resting Door Lock Relay, the actuators execute the unlock command, unlocking the doors.
The unlock function can also be accomplished by the BCM having received a keyless entry door unlock command, if the vehicle is equipped with keyless entry. Keyless entry personalization allows the driver door to be unlocked individually before unlocking the passenger doors. When this feature is active, the BCM will require a repeated unlock command to unlock the passenger doors.


Automatic Door Lock/Unlock
The automatic door lock/unlock function is a Vehicle Personalization feature with the following four programmable modes of operation:
The automatic door lock feature is disabled.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON, and all of the doors Unlock when the vehicle is shifted into Park.
All of the doors lock when the vehicle is shifted out of Park with the ignition ON, and only the driver door Unlocks when the vehicle is shifted into Park.
For information on programming the automatic door locks, refer to Vehicle Personalization in Personalization.

Your owners manual should explain what programs are available for your 350, Timm.

Some factory and aftermarket alarms lock the doors as you shift out of Park, or the car goes faster than 7-10 MPH, and unlock when shift to Park, or turn off ignition. If you have the option to cancel this option and lock the doors manually, then you know the signal input wire(s) have loose connection and are the culprits.

This is related to communication with the transmission shift "range selector". It is a loose connection that is causing the control module to "see" a park or Neutral and the doors unlock. This may turn on the check engine light also. It may eventuallly cause the transmission to not shift, also. You need to check the connection on the transmission and on the shift range selector (sometimes called the "PRNDL" switch. The computer automatically locks the doors when you select a gear. It is seeing no gear selected and unlocking the doors, the seeing a gear selected again, and locking the doors. You really need to get this repaired soon.

The power windows an power locks are controlled by a module , DDM - driver door module . As far as the locks locking when you put the vehicle into reverse an unlocking when you put the vehicle into park , that's how there are suppose to work , automatic lock an unlock feature . When you put the vehicle into any gear from park the locks should lock . Did she hit window lockout function ?

The power door lock system consists of the following components:
• The driver door module (DDM)
• The passenger door module (PDM)
• The body control module (BCM)
• The driver information center (DIC)
• The rear door lock switch
• The door lock relay
• The door unlock relay
• The liftgate lock relay--utility vehicles with liftgate only
• The reversible door lock actuators in each of the doors and liftgate
• LOCKS 20A fuse (rear lock/unlock relay supply voltage)
• ECC 10A fuse (liftgate lock relay supply voltage .

Programmable Automatic Door Locks
The automatic door lock feature can be programmed to control the door lock system. The automatic door lock feature is factory programmed to have all doors lock and unlock. For detailed instructions on programming the automatic door locks, refer to Vehicle Personalization in Personalization.
When the automatic door lock feature is programmed to control the door lock system, the driver door module (DDM), passenger door module (PDM) and body control module (BCM) will lock the vehicle doors if the following inputs are true:
• Ignition 1 input is active.
• All door jamb switch inputs are inactive.
• Cargo door or liftgate/liftglass ajar inputs are inactive.
• Transmission is shifted out of park.
This automatic door lock function will only occur once per ignition cycle unless, a door jamb switch input changes state to active and back to inactive. Then the DDM, PDM and BCM will lock all doors again.
Once the automatic door lock feature has locked the doors, the BCM will then unlock all the doors when the transmission is shifted into park.
Driver, Passenger and Cargo Door Lock System Operation
The front power door lock switches are integral components of the driver door module (DDM) and passenger door module (PDM). The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The rear door lock switch provides a lock and unlock signal to the body control module (BCM). The BCM upon receipt of a lock or unlock signal will control the rear door lock relays and also send a Class 2 message to the DDM and PDM to perform the appropriate function.
The modules which activate the power lock motors are:
• The DDM (driver door lock actuator).
• The PDM (passenger front door lock actuator).
• The BCM (both rear door lock actuators and cargo door/liftgate).
The DDM and PDM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.
The rear passenger and cargo doors differ slightly in that they use lock and unlock relays. The relays supply and coil sides receive a constant voltage through the battery voltage supply circuit. The normally closed contacts are connected to ground and the control side is connected to the BCM. Once a door lock or unlock request has been received by the BCM, the BCM will ground the control side of the appropriate relay. This energizes the relay and allows voltage to be applied to either the door lock motor lock or unlock circuits. since the other side of the door lock actuator is connected to the normally closed contacts of the opposing relay to ground, the doors lock or unlock.

does this help? look in owners manual for how to turn "on or off" the auto lock feature.


Automatic Door Lock/Unlock
The automatic door unlock function is a vehicle personalization feature with the following 3?programmable modes of operation:
1. All: All of the doors will automatically unlock. 2. Driver: The driver's door will automatically unlock. 3. None: The doors will need to be unlocked by a door switch command or by pressing the the lock button on the RKE transmitter. The All or Driver modes may also be programmed as to when the automatic door unlocking will occur.
1. Key Off: The door(s) will unlock when the key is turned off. 2. Shift to Park: The door(s) will unlock when the vehicle is shifted into P (Park). The delay lock function may be enabled or disabled. When the function has been disabled, the doors will only lock by a door switch command or by pressing the the lock button on the RKE transmitter. When enabled, the doors will not lock until five seconds after the last door is closed.

Intermittent door ajar switch contacts.

Your vehicle is designed to auto lock the doors when you reach about 15 mph. This is a one way deal. When you park the car, unlocking the doors becomes a manual process to insure the occupants safety at their destination.

The 2006 Vibe no longer has that feature. It was discontinued after 2005. I have the 2005 so I know how to change it. If your 2006 is able to change then here are the directions from my 2005.
Programmable Automatic
Door Locks
If you have an automatic transaxle, your vehicle is equipped with an auto door lock/unlock feature which enables you to program your power door locks.
Your vehicle left the factory programmed to Mode 4.
The following is a list of the available programming options:
Mode 1: All doors and liftgate lock when the shift lever is moved out of PARK (P) with the ignition on and all doors and liftgate closed. There is no automatic door unlocking.
Mode 2: No automatic door locking or unlocking.
Mode 3: All doors and liftgate lock when the shift lever is moved out of PARK (P) with the ignition on and all doors and liftgate closed. All doors and liftgate unlock when the shift lever is moved to PARK (P) with the ignition on.
Mode 4: All doors and liftgate lock when the shift lever is moved out of PARK (P) with the ignition on and all doors and liftgate closed. All doors and liftgate unlock when the ignition switch is turned from ON to ACC or to LOCK.
To change the mode you are in, do the following:
1. Set the interior lamp control dial to the door position.
See Interior Lamps Control on page 3-16.
2. Move the shift lever into PARK (P) and close all doors and liftgate.
3. Turn the ignition to ON.
4. Within five seconds after the ignition is turned to ON, press and hold the power door lock switch in
the lock position for about five seconds.
5. The interior lamp will flash to indicate that the mode has been changed. For example, if the lamp flashes once, the function has been changed to Mode 1.
If the battery is disconnected or run down, the mode is changed to the initial mode which is Mode 4.

i work at a chevy dealership,just had the same problem my fix was to replace the power door lock relay located on drivers side interior fuse block