2008 GMC Acadia manual liftgate will not open. Is there a way to bypass the electronic switch to get it open and replace the switch or latch?

What alarm ? content theft alarm ? No fuse
When armed, the content theft deterrent (CTD) system is designed to deter vehicle content theft by pulsing the horns and exterior lamps for approximately 30 seconds when an unauthorized vehicle entry is detected. However, the CTD system does not affect engine starting.
An unauthorized entry can be any of the following with the CTD system armed:
• When any door is opened without first being unlocked using the keyless entry transmitter
• After a battery reconnect, if the battery was disconnected with the CTD system armed
The components of the CTD system are:
• Body Control Module (BCM)
• Security indicator
• Door ajar switches
• Liftgate ajar switch


Is this the alarm your talking about ?

Hatch or liftgate ?
Liftgate Release
The liftgate release switch operates the liftgate latch electronically. When the switch is pressed, the SJB processes the input and releases the liftgate latch.
The doors must be unlocked electronically in order for the SJB to release the liftgate latch. When this condition is met and the SJB receives the input from the liftgate release switch, the SJB provides power to the latch release motor.

SJB - smart junction box , fords BCM - body control module .
Your best bet , take it to the dealer .
B2666 Liftgate Release Switch Circuit Failure Go To Pinpoint Test I . B273A Liftgate Release Output Circuit Shorted to Ground Go To Pinpoint Test I . B273B Liftgate Release Output Circuit Open or Shorted to Battery Voltage Go To Pinpoint Test I .

Is the arms bent

You have to pull the inside door panel off an check it out , only way !

• The lift gate latch release is inoperative/does not operate correctly

• Circuitry
• Liftgate release switch (integral to the liftgate release handle)
• Liftgate release motor (integral to the liftgate latch)
• Power liftgate module
• SJB

• Go To Pinpoint Test F .

Normal Operation The smart junction box (SJB) does not release the liftgate unless the doors have been unlocked electronically or the request is initiated from a remote keyless entry (RKE) transmitter.
The SJB sends a voltage signal to the liftgate release switch (part of the liftgate release handle) through circuit CPL45 (BN). When the switch is activated (the handle is pulled), the signal is routed to ground through circuit GD150 (BK/WH). When the SJB detects a request from the liftgate release switch, the SJB provides voltage through circuit CPL10 (BN/BU) to the liftgate latch release motor (integral to the liftgate latch) (vehicles with a manual liftgate) or the power liftgate module (vehicles equipped with a power liftgate). For vehicles with a manual liftgate, ground for the liftgate latch is provided through circuit GD150 (BK/WH).
DTC B2666 - is an on-demand DTC that sets when the SJB detects a short to ground from the liftgate release switch input circuit.
DTC B273A - is an on-demand DTC that sets when the SJB detects a short to ground from the liftgate latch release output circuit.
DTC B273B - is an on-demand DTC that sets when the SJB detects an open or short to voltage from the liftgate latch release output circuit.

Possible Causes
• Circuit CPL45 (BN) open or short to ground
• Circuit CPL10 (GN/WH) open, short to ground or voltage
• Circuit GD150 (BK/WH) open
• Liftgate release switch (integral to the liftgate release handle)
• Liftgate release motor (integral to the liftgate latch)
• Power liftgate module
• SJB

Your best bet is to take it to the dealer !

Will require a scan tool to check for codes, make sure latch is working well, make sure release switch is getting signal. Most common concern is the latch itself though

I have a 2008 Suburban with the power liftgate disabled. I have had the power latch stop working, and the BCM report that the rear access open when it is closed (both gate and glass). Somehow the liftgate module thinks the gate is open, so I cannot open the gate at all, and the latch and rear wiper will not work. To reset the control module I pulled the liftgate fuse (#20) in the instrument panel fuse box, turned the car on, off, reinstalled fuse, turned car on, unlocked doors using drivers side switch, and the power latch will function again - at least for a while.

There is a relay and a fuse for the power lfitgate. If you have the owners mmanual, you can find the diagram in section 5-100.

Hi, viewers. The liftgate latch of 2008 Acadia is electrically controlled by switches, fuses, modules, and sensors. If for some reason the liftgate doesnt seem to open under the normal operating conditions, you can still open it mechanically if needed.

* First, go inside the vehicle and lower the 2nd and 3rd row seats, and then locate the round access plug (visible and similar to a rubber grommet) from the liftgate lower interior trim panel.

*Second, use a small flatbladed tool to remove that access plug and expose the hole.

*Third, look through the hole and push on a silver lever located on the right to unlock the liftgate.

*Fourth, when unlocked, push the liftgate outward or, you may need an assistant to pull open the liftgate from the outside handle while you push the unlock lever.

Once opened, you can now reflect back as to why your liftgate wont function. I hope you get lucky in your quest. Have a nice day! : )

2007 GMC Acadia manual liftgate will not open. Is there a way to bypass the electronic switch to get it open and replace the switch or latch?