Passive Entry - Operation

OPERATION - PASSIVE ENTRY


BASIC PASSIVE ENTRY OPERATIONS:

With a valid Passive Entry RKE transmitter within 5 ft (1.5 m) of the driver or passenger door handle, grab the front driver or passenger door handle to unlock the door automatically. The interior door panel lock knob will raise when the door is unlocked.

If the vehicle is unlocked by the Passive Entry Door Handle, and no door goes ajar within 60 seconds, the vehicle will re-lock and if equipped will arm the theft alarm.

NOTE: If "Unlock All Doors 1st Press" is programmed all doors will unlock when you grab hold of the front driver's door handle. To select between "Unlock Driver Door 1st Press" and "Unlock All Doors 1st Press", refer to "Uconnect Touch(TM) Settings" to change this setting.

Preventing Inadvertent Locking Of Passive Entry RKE Transmitter In Vehicle:

To minimize the possibility of unintentionally locking a Passive Entry RKE transmitter inside the vehicle, the Passive Entry system is equipped with an automatic door unlock feature which will function if the ignition switch is in the OFF position. If one of the vehicle doors is open and the door panel switch is used to lock the vehicle, once all open doors have been closed the vehicle checks the inside and outside of the vehicle for any valid Passive Entry RKE transmitters. If one of the vehicle's Passive Entry RKE transmitters is detected inside the vehicle, and no other valid Passive Entry RKE transmitters are detected outside the vehicle, the Passive Entry System automatically unlocks all vehicle doors and chirps the horn three times (on the third attempt ALL doors will lock and the Passive Entry RKE transmitter can be locked in the vehicle).

To Lock The Vehicle's Doors:

With one of the vehicle's Passive Entry RKE transmitters within 5 ft (1.5 m) of the driver or passenger front door handles, press the door handle LOCK button to lock all doors. Do NOT grab the door handle, when pressing the door handle lock button.

After pressing the door handle LOCK button, you must wait two seconds before you can lock or unlock the doors, using either Passive Entry door handle. This is done to allow the customer to check if the vehicle is locked by pulling the door handle, without the vehicle reacting and unlocking.

The Passive Entry system will not operate if the RKE transmitter battery is dead. The vehicle doors can also be locked by using the RKE transmitter lock button or the lock button located on the vehicle's interior door panel.

Refer toPower Locks - Operation in Tech Connect for base power lock system operation overview.

ADVANCED PASSIVE ENTRY KEYLESS GO (PEKG) OVERVIEW:

In the Passive Entry Keyless Go (PEKG) system the doors are unlocked passively; however, they must still be locked actively after exiting the vehicle using the tactile Lock button on either front door Smart handle. When the system senses a hand approaching the capacitive switch in the door Smart handle pull, it sends out challenge messages through the Low Frequency (LF) antennas to authenticate the presence and location of a valid FOB with Integrated Key (FOBIK).

The FOBIK responds by sending a Very High Frequency (VHF) message back to the receiver within the Radio Frequency Hub Module (RFHM) (also known as the RF Hub). If the RFHM determines the FOBIK is valid and that it is located outside the vehicle in the same zone or vicinity as the door handle or deck lid switch being activated, it sends an electronic Unlock Request message over the Controller Area Network (CAN) data bus to the Body Control Module (BCM) to automatically unlock and allow entry to that aperture.

The PEKG system circuits and FOBIK inputs are continually monitored by the microprocessor and software contained within the RFHM. When the RFHM monitors a problem in any of the PEKG system circuits or FOBIK inputs, it stores a Diagnostic Trouble Code (DTC) in its memory circuit. The hard wired circuits between components related to the PEKG system may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. The wiring information includes wiring diagrams, proper wire and connector repair procedures, details of wire harness routing and retention, connector pin-out information and location views for the various wire harness connectors, splices and grounds.

However, conventional diagnostic methods will not prove conclusive in the diagnosis of the PEKG system or the electronic controls or communication between other modules and devices that provide features of the PEKG system. The most reliable, efficient, and accurate means to diagnose the PEKG system or the electronic controls and communication related to PEKG system operation, as well as the retrieval or erasure of a DTC requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.