I have a 2005 Suburban and the tail gate latch will not work. I got the rug stuck in the hatch and I think that I just broke the latch trying to open it. The latch is still attached but it will not go back down all the way. I tried to lock and unlock the hatch but with no luck.
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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.
I have run into this problem and i found that the switch that operates alarm and inside light is bad, the switch is located on the latch, the latch may need to be removed to replace the switch. some dealers do not sell just the switch, i have run into this problem where switch is not replaceable the complete latch needs to be replaced.
Another problem i have run into is the wiring going into the hatch breaks, the wiring from bendine due to door opening and closing breaks a wire or two due to bending , locate wiring coming into rear hatch and check each wire,
Most likly is the rear hatch latch it self. should be to much money to do youself youll have to remove any int panles on lift gate unplug latch there maybe a rod or two connected to latch couple bolts and pull it out
TO REPLACE TAIL GATE LATCH. TAKE A SMALL SCREW DRIVER OR USE A TRIM TOOL PRY OFF THE HANDLE ESCUTCHEON. ONCE BOTTOM PRIED OUT PULL THE ESCUTCHEON DOWN AND AWAY FROM THE TAIL GATE.IF YOU USE SCREW DRIVER COVER TIP WITH ELECTRICAL TAPE TO KEEP FROM DAMAGING PAINT SURFACE.FROM THE BED SIDE OF THE TAIL GATE REMOVE THE HANDLE MOUNTING BOLTS ROTATE THE PLASTIC RETAINING CLIPS OFF THE CONTROL RODS AND REMOVE THE RODS AWAY FROM HANDLE.REMOVE THE BOLTS AND WITHDRAW THE LATCH FROM THE END OF THE TAILGATE.
The lights and the electronic tail-gate lock cylinder are on differient electrical circuits, most likely, your problem is in the rear hatch wiring harness. See attached description: C406 - C901You will find the connector just inside the rear liftgate, in the headliner. This will be the connector that handles these items. It is common for them to become abraided and wear the wires through.
If you remove the ring around the handle you will get a better view of the two rods that connect the handle to the outter latches.The ring just snaps in.I think a flat head screw driver from the bottom works the best.Once you have access to the rods you can push the inward twords each other to pop the gate.If the are broken out twords the tail lights then a thin flat head in the gap betwen the tail lights and tail gate should be able to push the spring loaded latches in to pop the gate,but you may need to borrow a extra set of hands.Well hope this helps.
Try changing the liftgate latch. If you have power liftgate, that is the usual fault by experience. There is also possibility for the other associated components to fail, but they are more costly. You can go for these repair while the gate is not yet stuck closed, so you can easily remove the trim panel. However, I still suggest a preliminary check up on the circuits. The fuses, switches, modules, codes, etc. If the liftgate seems to be operational, except for the proper closing and initial opening, its most likely the latch. I just hope we get lucky on that. Okay, there? goodluck. : )
I believe there are one or more service bulletins out on the tail gate issue, so you are not alone. I have seen a vehicle with this issue. The bullitin states adjust latch/ do not replace. We tried to adjust 4 times and ended up installing a new latch to remedy.