Rear liftgate closes or opens on its own

[bonehunts]

My Yukon's tailgate has been giving me fits for several months now. It's 80 degrees here so cold isn't an issue.

When I use the electronic opener, it will raise about 3/4 of the way up then it goes all the way back down closed/latched.

If it's in the open position and I try to close it, it will go down 3/4 of the way then open all the way back up.

I replaced both strut lift supports and the problem still exists.

Anyone have a solution? I don't know if it has a sensor that somehow could be bad. I've got 48k miles on it so I'm sure it's not covered under some kind of warranty.

 

[KMeloney]

It DOES have a sensor. If it senses that something's getting in the way of it opening/closing, it'll reverse it's direction. That being said, I think the thing can get out of whack. I've had mine do the same thing. Seems a bit random.

 

[doo600]

This is a power liftgate I take it. I was one of the first 07 Tahoe's to have this issue. It would open and close on it's own. After several attempts to fix even getting GM involved I ended up finding out it was the rear switch in the liftgate.The electronic squeeze switch is cheap and was determined to be an issue with several other Tahoe's after mine.