GMC Acadia Power Lift Gate Not Working

Off the top of my head I would say the control module isn't functioning correctly

You need to replace the rear latch assembly it sounds like the switch inside latch is going bad.

check your fuses and relays --if good will need to pull up the switch from arm rest panel and test the switch when window open rain does drip down into switch

Bad amplifier. It's located in dash behind headlight switch. Happens often on these.

check the circuit board to the signal receiver. if that fried then you gotta replace it because its not sending the signal. Or check the circuit line make sure its getting power to the gate. Going have to open a lot of stuff to get to them wires.

check the fuses under the dash

It's now a recall item. See below.


NHTSA CAMPAIGN ID Number: 15V415000
Component: STRUCTURE:BODY:HATCHBACK/LIFTGATE
Manufacturer: General Motors LLC
Potential Number of Units Affected: 686287

Year: 2009
Make: Chevrolet
Model: Traverse
Manufactured
from: 2008-07-06
to: 2012-02-29
Recall Date: 2015-06-30
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Summary:

General Motors LLC (GM) is recalling certain model year 2008-2012 Buick Enclave vehicles manufactured January 3, 2007, to February 29, 2012, 2009-2012 Chevrolet Traverse vehicles manufactured July 6, 2008, to February 29, 2012, 2007-2012 GMC Acadia vehicles manufactured September 15, 2006, to February 29, 2012, and 2007-2010 Saturn Outlook vehicles manufactured August 17, 2006, to March 18, 2010. The affected vehicles, equipped with the power liftgate option, have gas struts that hold the power liftgate up when open. These struts may prematurely wear and the open liftgate may suddenly fall.

If the open liftgate unexpectedly falls, it may strike a person, increasing their risk of injury.

GM will notify owners, and dealers will update the software for the power liftgate actuator motor control unit so that the motor will prevent the rapid closing of the lift gate, free of charge. Owners were mailed interim notices on August 3, 2015. Owners will receive a second notice when remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300, Chevrolet customer service at 1-800-222-1020, GMC customer service at 1-800-462-8782, and Saturn customer service at 1-800-553-6000. GM's number for this recall is 15240.

check the shock looking struts they hold it up the motor just lifts it up

There has been problems with that component,also Saturn Outlook ,has faulty gear, and will have to be calibrated and programmed to vehicle.ll