My girl's landlord has a 2018 Suburban LT. The rear liftgate will open when you touch the inside of the rear handle but will not rise but can raise by hand and it stays up and when lifted all the way up and touch the button to close the liftgate, nothing happens but can push the liftgate down and it closes fine. The switch in the front overhead that controls the detent/severity of open and closing, says "Maximum" "3/4" and OFF, makes no difference on switch position whether it works or not. He also has a key fob control that does unlock it but again, it will not raise or lower by itself with the key fob. I looked at the fuse/relay panels under the hood and at each end of the dash and found nothing related. There is another fuse/relay panel at the very left rear behind a cover. Fuses are labeled as such: Liftgate.....Liftgate Module Logic and these 2 are 10 amp fuses and are good. There is a 30 amp larger fuse that is labeled for Liftgate Module and is good. There is a #8430 relay that is labeled just Liftgate and I found a matching relay to that and is in the engine compartment fuse/relay box and switched them with no help. When you lift the hatch or close it, you can hear the side struts winding up or down. I never do hear the lock actuator or motor working.
I looked on the internet and you tube but only found quick videos about if the rear hatch liftgate will not open at all or how to replace the side power struts. I decided to reach out here before I start removing covers and checking for power and ground.
Does anyone have info to share about this?
I looked on the internet and you tube but only found quick videos about if the rear hatch liftgate will not open at all or how to replace the side power struts. I decided to reach out here before I start removing covers and checking for power and ground.
Does anyone have info to share about this?
