Power Tailgate (If Equipped)
- Do not close the tailgate if the startup battery is disconnected. It is advisable to close the latch claws when working on a vehicle with the startup battery disconnected to prevent accidental closure.
- If required, the tailgate can be opened and closed manually.
The Tailgate Control Module (TGCM) can detect obstructions when the tailgate moves by sensing the current of the actuators. If an object is detected that would interfere with the tailgate opening, tailgate movement stops.
The TGCM also can detect pinched objects during the tailgate closing by 2 tailgate anti-trap sensors. If an object is detected that would interfere with a tailgate closing, tailgate movement stops and then reverse to the fully open position. An audible warning indicates either a failed closing action or object or pinch detection. Any obstructions must be removed before pressing the close switch again.
When the latch is released, the TGCM actuates the motors located in the tailgate actuator to raise the tailgate to its fully open or pre-set position. When the tailgate is in its opening cycle the automatic stop position of the tailgate is functioned by a hall effect sensor located in the motor. The hall effect sensor signal transmitted to the TGCM is synchronized with the pre-set memory indicating the stop position of the tailgate.
To close the tailgate a hardwired signal is transmitted directly to the TGCM when the switch closing edge is pressed and then released. The TGCM operates the tailgate actuators in the opposite direction to close the tailgate to the secondary latched position. The tailgate can be closed through the smart key, interior or exterior tailgate release switch also.
When the latch engages with the striker plate a signal transmitted from the secondary switch of the latch, to the TGCM confirms the latch engages. The TGCM de-activates the tailgate actuators and activates the tailgate soft close actuator to pull the latch closed through the last 6 mm of travel. This is the fully closed position of the latch. The tailgate soft close actuator then reverses to allow the latch to be opened upon the next release request. Mechanical cable connection between the actuator and the latch is used to complete the closing process of claw contraction and then reverse.
If the startup battery is disconnected when the tailgate is closed, the stored and calibrated tailgate opening heights remains stored when the startup battery is reconnected. However, if power supply to the TGCM is disconnected when the tailgate is open, the system does not recognize the tailgate's position. The system subsequently does not function to any switch commands when power is reinstated. To reset the system the tailgate must be moved manually to the closed position. The closed position where the tailgate operates a soft close and reset the hall effect sensor counters to 0.
| STRATEGY | OPENING | CLOSING | STOP | START FROM STOPPED POSITION AFTER OPENING | START FROM STOPPED POSITION AFTER CLOSING | GARAGE POSITION - SET/RESET |
|---|---|---|---|---|---|---|
| Smart key - Tailgate release switch | 1 push | 1 push | 1 push | 1 push for toggle closing | 1 push for toggle opening | X |
| Exterior tailgate release switch | 1 push | 1 push | 1 push | 1 push for toggle closing | 1 push for toggle opening | X |
| Tailgate close switch | X | 1 push | 1 push | 1 push for closing | 1 push for closing | 1 push until long beep |
| Interior tailgate release switch | 1 push | 1 push | 1 push | 1 push for toggle closing | 1 push for toggle opening | X |
| Hands-free tailgate | 1 smooth kick and return motion | 1 smooth kick and return motion | X | X | X | X |
The power tailgate may lose its position memory if:
- There are multiple object detections.
- There are inadvertent loads on the tailgate while it is moving, for example, a person leaning against the tailgate.
- The startup battery voltage is low.
- Any latch is manually closed.
To reset the tailgate:
- Manually close the tailgate.
- Press a tailgate release switch.
- Allow the tailgate to power fully open or to the previously set position.
- Press and release the close switch.
- Allow the tailgate to power close fully.
The tailgate programed position memory is now restored.