Power Door Locks
The BCM controls the door locks using field-effect transistors (FET)'s (driver door unlock/passenger doors unlock/all doors lock). When the field-effect transistor (FET) are not energized, ground is provided on both circuits to the lock motors within the latches. When an unlock field-effect transistor (FET)'s energizes, voltage is provided to one side of the lock motor to unlock the door(s). When an unlock field-effect transistor (FET) energizes, voltage is provided to one side of the lock motor to unlock the door(s). When the lock field-effect transistor (FET) energizes, the polarity is reversed and the motors lock the doors.
For vehicles not equipped with a memory seat, the BCM sends voltage signals to the door lock control switches. When a door lock control switch is pressed, the voltage signal is routed to ground, indicating a request to lock/unlock the doors. When the BCM detects a lock or unlock request, the BCM energizes the appropriate relays to lock or unlock the doors.
For vehicles equipped with a memory seat, the DDM and PDM send voltage signals to the door lock control switches. When a door lock control switch is pressed, the voltage signal is routed to ground, indicating a request to lock/unlock the doors. When the DDM or PDM detects a lock or unlock request, a message is sent over the CAN to the BCM to lock or unlock the doors.
In the event of a power door lock failure, the doors can be individually locked using the manual door lock. The manual door lock is located on the rear edge of the door just above the door latch opening. For the left door, insert a key and turn clockwise to lock. For the right door, insert a key and turn counterclockwise to lock.
Based on input from the door lock control switches, the passive entry system and the RKE transmitter, the BCM unlocks the driver door, unlocks all the doors or locks all the doors.
LED Door Lock Indicators
Each door panel has a door lock indicator located on the window sill to indicate the lock or unlock status of that individual door. The door lock indicators are controlled by the lock/unlock feedback switch located within each door latch. When powered, they illuminate to indicate a door is locked and are off when a door is unlocked.
The Light Emitting Diodes (LEDs) are powered continuously if the ignition is on, or for 5 minutes after a lock request if the ignition is off.
The LED door lock indicators brightness level works in conjunction with the backlighting brightness level setting.
For vehicles not equipped with a memory seat, the BCM provides voltage to the door lock indicators.
For vehicles equipped with a memory seat, the DDM and PDM provide voltage to their respective door lock indicator.
The lock/unlock feedback switch provides a ground path to bypass the indicator. The switch is closed when the door is unlocked (indicator not illuminated) and open when locked (indicator illuminated). The Body Control Module B (BCM-B) provides ground for the door lock indicators to illuminate.
The LED door lock indicators are part of the electrical harness and cannot be replaced independently.
Switch Inhibit Feature
The switch inhibit feature prevents unauthorized access to the vehicle from the door lock control switches or the interior luggage compartment lid release switch. The BCM disables the function of both door lock control switches and the interior luggage compartment lid release switch 20 seconds after the vehicle is electronically locked. If any of these switches are activated while they are inhibited, a chime sounds and a message is displayed in the message center to indicate the switches are inhibited. The BCM enables the function of these switches when the vehicle is electronically unlocked.
This feature can be configured on/off using the message center.
Power Door Locking Feedback
The exterior lamps and horn provide visual and audible feedback when unlocking and locking the doors under certain circumstances. Refer to the following chart:
| Action | Status of Door(s) | Status of Luggage Compartment Lid | Status of Hood | Visual/Audible Feedback |
|---|---|---|---|---|
| Press the lock button on the door lock control switch | Open | Closed | Closed | A short flash of the turn signals after all the doors are closed. |
| Press the unlock button on a RKE transmitter | Closed | Closed | Closed | A long flash of the turn signals. |
| Press the lock button on a RKE transmitter | Closed | Closed | Closed | A short flash of the turn signals. |
| Press the lock button on a RKE transmitter | Open | Closed | Closed | A short flash of the turn signals after all the doors are closed. |
| Press the lock button on a RKE transmitter | Closed | Open | Closed | A short flash of the turn signals after the luggage compartment lid is closed. |
| Press the lock button on a RKE transmitter | Closed | Closed | Open | A short flash of the turn signals after the hood is closed. |
| Press the lock button on a RKE transmitter twice within 3 seconds | Closed | Closed | Closed | The horn chirps twice and the turn signals flash twice. |
| Press the lock button on a RKE transmitter twice within 3 seconds | Open | Closed | Closed | The horn immediately chirps twice and the turn signals flash twice after all the doors are closed. |
| Press the lock button on a RKE transmitter twice within 3 seconds | Closed | Open | Closed | The horn immediately chirps twice and the turn signals flash twice after the luggage compartment lid is closed. |
| Press the lock button on a RKE transmitter twice within 3 seconds | Closed | Closed | Open | The horn immediately chirps twice and the turn signals flash twice after the hood is closed. |
There is also feedback provided by the vehicle to the key for the remote start feature. For additional information regarding the remote start feedback, refer to the Owner's Literature.
Center Console Storage Compartment Lock (if equipped)
The BCM controls the center console storage compartment solenoid. The center console storage compartment solenoid locks the storage compartment when the doors are electronically locked and unlocks when the driver door is electronically locked.