Keyless Entry: Description and Operation

REMOTE KEYLESS ENTRY (RKE) SYSTEM
The Remote keyless Entry (RKE) system allows locking and unlocking of vehicle door(s) and deck lid by remote control using a hand held radio frequency (RF) transmitter.

The ignition switch must be OFF before the trunk lid can be unlatched with the transmitter.

The receiver may be programmed with up to four transmitters (vehicles are shipped with two). Each transmitter has its own code and the code has been stored in memory when it is programmed into the receiver. If the transmitter is replaced or other transmitters are added, each transmitter must be reprogrammed.

Remote Keyless Entry Transmitter:

REMOTE KEYLESS ENTRY
The system allows locking and unlocking of vehicle door(s), deck lid release, and panic by remote control using a hand held radio frequency transmitter. The vehicle must be in PARK before the trunk lid can be unlatched with the transmitter.

The receiver may receive signals from up to four transmitters. Each transmitter has its own code, and the code is programmed and stored into receiver memory. If a transmitter is replaced or additional transmitters are added, the codes for all units have to be reprogrammed into the receiver memory. If a receiver module is replaced, the transmitter codes must be stored in the new receiver memory.

The transmitter has four buttons for operation. They are LOCK, UNLOCK, DECK LID RELEASE, and PANIC.
- The UNLOCK button will unlock the driver's door and enable illuminated entry. Pushing and releasing the button once will unlock the driver's door. Pushing and releasing the button two times, within a five second interval, will unlock all doors.
- Upon pressing the LOCK button, the horn will sound a short CHIRP (if enabled) and flash the park lamps to notify that the all door lock signal was received and set. Illuminated entry is cancelled and the interior lamps are faded to off.
- Pushing and releasing the DECK LID RELEASE button (one or two times depending on customer preference) within a two second interval, will slightly ajar the deck lid.
- Pushing and holding the PANIC button will cause the panic alarm to sound for three minutes, until the panic button is pressed and held a second time, or the vehicle reaches a speed of 15 mph.

The receiver is capable of retaining a Vehicle Access Code (VAC) even when power is removed.

Each Remote Keyless Entry (RKE) module must have at least one and no more than four transmitters.

HORN CHIRP TOGGLE
Once the transmitters have been programmed, the horn chirp can be enabled/disabled by sending the horn chirp toggle operation code to the Body Control Module (BCM).

This can be done using a DRB scan tool or by the customer. The horn chirp will enter the opposite state of its current programmed state by receiving this operation code. The BCM is responsible for keeping track of the horn chirp status.

ILLUMINATED ENTRY
The Illuminated Entry System is available on vehicles equipped with the Remote Keyless Entry system. The Illuminated Entry System turns ON the courtesy lamps when the remote keyless entry system is activated.

The Remote Keyless Entry Module and the Body Control Module (BCM) are used to control the system. Courtesy lamps will turn on for 30 seconds (+/- 1 second) and "fade-to-OFF" over a five second period.

The Illuminated Entry System also turns ON the courtesy lamps when a door is opened. The courtesy lamps will remain ON while the door is open, then "fade-to-OFF" 30 seconds (+/- 1 second) after the last door is closed.

The courtesy lamps will "fade-to-OFF" immediately when the ignition is switched to ON.

The Illuminated Entry System cannot be activated during the 30 second (+/- 1 second) period after the ignition switch is turned OFF except by using the RKE transmitter. If a door is opened and closed during this 30 second period, the system will function as previously described.

The courtesy lamps will fade to OFF immediately, if the Remote Keyless Entry lock function is actuated with all doors closed.