System Operation: RKE
The RKE feature is controlled by the BCM. When a button is pressed, the Transmitter Identification Code (TIC) and RKE command is received by the RTM. The RTM interprets the information and sends a message to the BCM over a LIN circuit and, when the network is awake over the CAN. If the BCM detects a valid programmed key, it carries out the command by controlling the door locks or activating the horn or turn signals as required.
The RKE system can be used to:
- unlock the driver door.
- unlock all doors.
- lock all doors.
- release the luggage compartment lid latch (luggage compartment lid release button must be pressed twice within 3 seconds).
- arm/disarm the perimeter alarm (if equipped).
- activate/deactivate the panic alarm.
- global open the windows (press the unlock button and then within 10 seconds press and hold the unlock button for 3 seconds) (if equipped).
- global close the windows (press and hold the lock button for 2 seconds) (if equipped).
- remotely start the vehicle (if equipped with the factory remote start system).
- configure the staged unlock programming (2-stage unlock or global unlock).
The RKE transmitters have a normal operating range of 30 m (98 ft) in an open air, no obstruction environment.
The RKE transmitters and the BCM also utilize a rolling code to prevent the code from being captured by a code grabber. The system advances the counter in the RKE transmitter and the BCM every time a RKE transmitter button is pressed.
The message center displays Key Battery Low Replace Soon when the battery in the key needs to be replaced.
RKE Transmitter Unlock
The RKE feature provides a staged process for unlocking the doors. Upon receipt of the first request for unlocking the doors, the RKE control feature unlocks only the driver door and provides a long flash of the turn signals. If another unlock request is received within 3 seconds of the first, all the doors are unlocked. This feature can be disabled so that all the doors unlock on the first press of the unlock button (global unlock). Refer to: Staged Unlock Programming .
RKE Transmitter Lock
The RKE feature requests all of the doors lock when the lock button is pressed.
RKE Transmitter Luggage Compartment Lid Latch Release
The RKE transmitter provides a luggage compartment lid release function. The luggage compartment lid release button must be pressed twice within 3 seconds for the luggage compartment lid latch to release.
Panic Alarm
The panic alarm feature provides audible and visual alarms which are evident from the exterior of the vehicle. When the panic alarm button is initially pressed, the panic alarm feature requests that the turn signals flash and the horn sounds for up to 3 minutes or until deactivation. The flashing of the outputs occurs simultaneously.
The panic alarm can only be activated when the ignition is off. This feature is disabled at all other times. Deactivation of an active panic alarm is accomplished when:
- a second press of the RKE transmitter panic button is detected.
- the ignition status changes from off.
- a period of 2 minutes and 45 seconds have elapsed since the initial activation.
The panic alarm cannot be deactivated during the first 5 seconds of activation to avoid unintentional deactivation.
Remote Start (if equipped)
The factory-installed remote start allows the vehicle to be remotely started from outside the vehicle. There is a 2- way communication between the key and the vehicle to provide the remote start status of the vehicle. The key contains a green and a red LED to indicate the remote start status.
Remote Start LED Feedback
| LED | Status |
|---|---|
| Blinking green | Waiting for status update from vehicle |
| Blinking red | Remote start/stop failed |
| Solid green | Remote start or extension successful |
| Solid red | Remote stop successful (engine off) |
To remotely start the vehicle, the hood, the buttons on the RKE transmitter must be pressed within 3 seconds of each other. Press the lock button once and then the remote start button twice. The vehicle should remotely start and the LED on the key should be lit solid green.
The vehicle does not remote start if any of the following conditions are present:
- The feature is disabled using the message center.
- The hood is not closed.
- The vehicle is not in PARK.
- A powertrain system DTC is present, illuminating the service engine soon indicator.
- The ignition is on.
- The alarm system is triggered.
- The vehicle battery voltage is low.
- Two remote starts have already been attempted within the past hour.
For additional information regarding the remote start system, refer to the Owner's Literature.