Door lock issues.

[tootiesdaddy13]

I have an 05 Yukon xl denali. Neither of my rear passenger doors nor my rear hatch will unlock with switch. All went out at the same time so I doubt its the actuators. Seems to be a pretty common issue, just having trouble find an answer. Any ideas?

[Doug_Scott]

When you say "unlock with switch" do you mean from any switch, or just from one specific switch? Hard to believe that three actuators would fail at the same time. It just is not likely to happen.

Do the doors lock automatically when you either put it in gear or start driving? What about unlocking when shutting off the engine? Does pressing the unlock button on remote twice unlock all the doors? Reason for asking about those is to see if the locks work at all. If they do work when you try some of the above, it will not be actuators. You will also have to verify with a voltmeter or some other power testing device that there is proper power being applied to actuators before replacing them.