Power Lift gate problem.....Help

[shundal]

I just finished installing the power lift gate latch, and am happy to say that it solved the problem! My lift gate is now properly opening and closing again.

 

[Smokymance]

insane isnt it???? i was so happy when i pressed that button and it worked!!!!!

 

[shundal]

It sure is! I've been struggling with trying to figure this problem out for a long time, and finally had just given up. I wasn't going to replace the whole motor assembly. For $150, I'm very pleased.

 

[Smokymance]

Its just a shame so many little things go wrong with these cars that just add up in the end...my rear gate defroster lines r missing a few lines as well...gotta repair those...pass heated mirror just gave up too

 

[shundal]

Yea it feels like I've been dealing with a few issues lately. My tahoe inside drivers door lock broke on me. I finally got that in and replaced. It was embarrassing having to put my window down to open the door from the outside with people around lol

 

[shundal]

Looks like my dad ordered a replacement liftgate latch online after i already installed the one i bought, and theres no returns! So, I'll be putting the second one up for sale for $155 shipped. Unit is brand new.

 

[riggz]

Does it go down about a 1/3 of the way then open again?

Louis
GM Customer Service

This is exactly what mine will randomly do. Sometimes it takes a few tries, other times it works fine. Any idea what the cause / solution is?

 

[shundal]

there's a good chance it's your tailgate latch

 

[rstewheck]

Liftgate latch problems

I just replaced my liftgate latch to resolve the "non-operating" liftgate problem. After finding the problem it reminded me of an old situation with the earlier years of Cadillac that used a similar latch to close the rear deck lid. Those latches would actually pull the trunk lid (deck lid) closed after you gently depressed the lid onto the latch. If anyone slammed the trunk lid it would break the latch and a replacement would have to be installed. I bought my Yukon XL with a broken latch and can only assume that forcefully closing the liftgate in manual mode has a similar affect on the liftgate latch. I will be placing a sticker on the liftgate that will remind anyone closing the liftgate manually "DO NOT SLAM THE LIFTGATE CLOSED"!

 

[ignaczak]

power tailgate problem fixed

Hi, I'm new here but I have just managed to fix my powerlift gate and I figured I would share my findings.
So first, just as everyone else, I replaced the main lift motor, to no avail, still the gate wouldn't go up or down, just noise. There are sensors all over the back, some are on the side of the glass (to prevent finger pinching) some are on the position of the lift arm, some on the locks, these all run back to the main computer to keep track of tailgate position and safety. After all that checked out fine. I read somewhere here that the power latch assembly could case the issue, so I took it out and apart as far as I could and all seemed well, except that I couldn't see all the sensors. Took the time to drill out the two big rivets that hold the latch together and it all came to light. Inside the latch there are big heavy metal gears and levers, except for one flimsy piece of plastic that triggers an internal sensor... it was broken. The only thing I could see breaking it (as to where and how it works and is located) could be slamming the gate down too hard. This is obviously a design flaw or some kind of sacrificial part to prevent different damage. got a new latch, all is working perfectly. No reprogramming of any sort required, 3 torx screws, 10 minute fix...
Now, the frustration is that my glass won't open or wiper won't work, seems like somewhere there must be another sensor making it think the glass is open. When I find it I will post it, if anyone already knows please let me know.