Principles of Operation (How Does It Work?) Module Controlled

Power Locking
The power locking/unlocking feature requests all of the vehicle doors, including the liftgate (if equipped), be locked or unlocked upon a customer request from any interior power lock switch in the vehicle. Power locking and unlocking of the doors operate independently of the position of the ignition and independently of the vehicle speed. The power locking/unlocking feature unlocks all the doors when an unlock request is provided from any power unlock switch. The power locking/unlocking feature locks all the doors when a lock request is provided from any interior power lock switch. When the vehicle security module receives an unlock/lock command from any power lock/unlock switch, the vehicle security module will activate relays internal to the module to supply the correct power and grounds for the door lock actuators.

Power Unlock Inhibit
With the ignition off, 20 seconds after electrically locked (key fob, keypad, door lock control switch locked with door ajar) and all doors are closed, the power door unlock switch will be inhibited if this feature is enabled. (The lock function will still operate.)

Deactivating/Activating Power Door Unlock Switch Inhibit
This is customer configurable. Steps one through three must be completed within 30 seconds.
1. Turn the ignition key to ON, then press UNLOCK three times.
2. Turn the ignition key to OFF, then press UNLOCK three times.
3. Turn the ignition key to ON, within five seconds press LOCK two times.

The user should receive two horn chirps to indicate the system has been disabled or two chirps followed by a horn honk to indicate the system has been enabled.

Pressing LOCK two times again will toggle the door lock control switch inhibit feature state.

Turn the ignition OFF to exit programming mode.

This feature can also be enabled/disabled using a diagnostic tool.

Autolocking
The autolocking feature locks all doors when all doors, including the liftgate (if equipped), are closed, the brake pedal was pressed with the ignition in RUN, then vehicle speed of 8 kph (5 mph) or higher was achieved. This feature relocks the doors (if any doors were open) after the brake pedal is pressed, once all doors are read as closed and vehicle speed exceeds 8 kph (5.0 mph). Door ajar switches are wired directly to the vehicle security module. The autolocking feature can be enabled/disabled through module configuration, diagnostics, and keyless entry keypad.

Autolock Enable/Disable - Using the keypad
A manual enable/disable mode allows the autolock feature to be turned off and on.
To enable or disable autolock using the keyless entry keypad:
1. Enter the five-digit permanent entry code into the keyless entry keypad.
2. Within five seconds of entering the code, press and hold the 7/8 button on the keypad.
3. Within five seconds of Step 2, and while holding the 7/8 button, press the 3/4 button on the keypad and release it.
4. Within five seconds of Step 3, release the 7/8 button on the keypad.

If the autolock feature is disabled, the horn will chirp once. If the autolock feature is enabled, the horn will chirp once shortly and then sound a second time for a longer sound of the horn once the above sequence is completed.

Autolock Enable/Disable - Using the Ignition Switch
Another way to turn the autolock feature off/on is by following this series of steps:
1. Close all doors.
2. Confirm that the ignition switch is in the OFF position.
3. Turn the ignition switch from OFF to RUN.

NOTE: Steps four through eight must be carried out within 30 seconds.

4. Press UNLOCK three times.
5. Turn the ignition switch from RUN to OFF.
6. Press UNLOCK three times.
7. Turn the ignition switch from OFF to RUN.
8. Verify that the horn chirps. This indicates the enable/disable mode and now is ready to accept program changes.
9. Press UNLOCK once to command the vehicle security module to toggle the autolock/relock feature OFF.
10. Press LOCK once to enter the command.
11. Verify that the horn chirps one time. There should only be one chirp indicating that the autolock/relock feature has been disabled. If one chirp is heard followed by a longer sound of the horn, the autolock/relock feature has just been enabled. Return to Step 10.
12. Turn the ignition switch to the OFF position to exit the enable/disable mode.
13. Exit the vehicle and verify that the horn chirps once to indicate that a feature has been changed and that autolock/relock has been disabled.

Smart Unlocking
The smart unlocking feature prevents the driver door from locking with the key in the ignition. When the vehicle security module receives a LOCK command from a door lock control switch, and the key in the ignition with the driver door open, the vehicle security module will command the driver door to UNLOCK.

Remote Transmitter Lock/Unlocking Control - Unlocking
The remote control feature provides lock/unlock functions independent of ignition/speed/PRNDL state. The remote control feature provides a two-step process for unlocking the doors. Upon receipt of the first requests for unlocking the doors, the remote control feature requests the vehicle security module to unlock the driver door only. If another unlock request is received within three seconds of the first, the remote control feature will request that all doors be unlocked.

Remote Transmitter Lock/Unlocking Control - Locking
The remote control feature requests that all the doors be locked when the LOCK button is pressed. On any press of the lock button with all doors closed: the remote control feature will request one flash of the parking lamps. If any door is ajar, no flash will occur, indicating it locked all the doors but one or more doors are ajar. As soon as the last door is closed, the vehicle will provide the one flash of the parking lamps. If two presses of the lock button are received within two seconds the horn will chirp once, and flash the parking lamps twice to indicate that all the doors are closed and locked. If any door is ajar when the second lock request is received within three seconds of the first, the remote control feature will request the horn chirp twice without flashing the parking lamps to indicate it locked all the doors but one or more doors are ajar. When the ignition is in the RUN or START position, no parking lamp flashes or horn chirp confirmations will occur.

Panic Alarm
The panic alarm feature controls activation of the panic alarm providing audible and visual alarms which are evident from the exterior of the vehicle. The panic alarm feature requests that the parking lamps and horn are flashed until deactivation. The flashing of the outputs occurs synchronously. Activation of the panic alarm is accomplished by pressing the PANIC button on a remote entry key fob whenever the ignition is off. At all other times this feature is disabled. Deactivation of an active PANIC alarm is accomplished by: 1) a second press of the key fob PANIC button, 2) the ignition is switched out of the OFF or ACC position or; 3) a period of 2.75 minutes has elapsed since the initial activation.

Keyless Entry Keypad
The keyless entry keypad, located on the exterior of the driver door, provides a method for the customer to access their vehicle without a key or remote transmitter. The keyless entry keypad feature:
^ locks all doors and inhibits the door lock control switch UNLOCK ability after 20 seconds (if the inhibit feature is enabled).
^ unlocks only the driver door.
^ unlocks all doors.
^ Programs/erases customer key code.
^ Enables/disables autolocking.

The keyless entry keypad feature operates independently of ignition status, vehicle speed, or transmission position. When a keypad button is depressed, the keypad buttons illuminate to provide better visibility. If LOCK ALL DOORS is entered or five seconds have elapsed since the last button press, the illumination is turned off.

Each vehicle equipped with a keyless entry keypad is programmed with a five-digit entry code. This code is provided to the customer through a wallet card in the Owner package. In addition, this code is available through a diagnostic tool and is also printed on the vehicle security module label. When entering codes each digit must be entered within five seconds of the previous button press.

Programming/Erasing Personal Code
A unique personal five-digit code can be programmed by following these steps:
1. Enter the factory set five-digit code (the keypad will illuminate when pressed).
2. Press 1/2 within five seconds of Step 1.
3. Enter the unique five-digit code.

The personal code does not substitute for the permanent factory set code. Either code can be used to access the vehicle. In addition, if a second personal code is programmed, it will simply overwrite the previous personal code. To erase a personal code, carry out the following procedure:

4. Enter factory set five-digit code.
5. Press 1/2 within five seconds of Step 1.
6. Press 7/8 and 9/0 at the same time within five seconds of Step 2.

The system will now only respond to the factory set code.

Anti-Scan Feature
To provide added security, the keyless entry pad is disabled for one minute after 35 button presses without a valid entry code being entered. The keypad will flash during this one-minute mode with all functionality disabled except for 7/8 and 9/0 still being allowed to lock the vehicle.

Anti-Scan will be turned off after any of the following events:
^ one minute of keypad inactivity
^ the key fob UNLOCK button is pressed
^ the ignition is turned to the ON position.

Unlocking the Doors with the Keyless Entry Keypad System
To unlock the driver door, enter either the factory set code or the personal code (each digit must be pressed within five seconds of the prior digit). The interior lamps will illuminate.

To unlock all doors, enter either the factory set code or the personal code (driver door unlocks) and press the 3/4 control within five seconds.

Locking the Doors with the Keyless Entry Keypad System
It is not necessary to enter the factory set or personal code prior to locking all doors. To lock all doors, press the 7/8 and 9/0 controls at the same time.