2004 Gmc safari rear electric lock doors will not unlock and the doors will not open.

There are two fuses associated with the door locks system. The first is the Cigarette Lighter Fuse (Fuse 13 - 20A). This fuse provides power to the switches to activate the lock/motor relays. The second fuse is the PWR ACCY Circuit Breaker (30A). This provides the power thru the relay contacts to the lock solenoids/door motor. Both of the are in the Instrument Panel (IP) Fuse block.

sounds like your lock rod clip broke, have to remove door panel inside and release it to open then repair lockrod

This problem can be caused by a few things, it could be the rear door lock switch or lock module located under the dash or last the rear door actuator.

You say that all door lock and unlock on there on, this tells me it most likely has a module problem or wiring to the rear door is bad.
The first thing i would do would be to remove the rear door panels and check wiring to switches and actuator, then follow wiring from inside the rear hatch to where in goes through the body. the wiring most times breaks at that point where the wiring is bent over from opening and closing rear door ,

Locate the wiring going into door or doors. sometimes the wiring only goes into one door but then sometimes in goes into both doors, check the wiring closely . it may be covered in a rubber boot . if it is covered you will need to slide boot back to check wiring.

Good day. hope this is helpful.

U will have to open th door from th in side. To unlock it. Remove the inside panel. And where th key go, u can unlocked from th inside. But firs try to lock and unlock th door whit th electric control while u try to open th door. Because sometimes they are just stock and need lubrication. Good lock

remove panel, if any, check for loose wires, clean and lubicate 

You have to crawl in the back remove the panels and find the actuator(s), when you find them check for any linkages the may have fallen off. Gm uses little clips that get brittle and break. if it is a clip reinstall rod with a new clip or reinstal rod and secure with mechanics wire.

If the actuator is broken you can hook up a volt meter to the pin outs and test for power by hitting the door lock unlock button. If there's power then chamces are that the actuator is faulty. if theres no power check ground connections fuses relays and re test. good luck

probly got a bad silonode change that out for a new one should work bad part probly going to have a dif key for it though but the button should work :]

The left actuator arm on your electric hatch has come off.If you go into the rear of the van through the passenger area you can remove the panel around the rear window.Its a bit of a bugger but you can get in there.I know i've done it!

can you use the key its self on the rear door. what i mean is not using the remote but actually using the key?

rear hatch door on 2000 gmc safari will not unlock-how can I open it?