Security system wont let me start the car. tried the key in the passenger door, drivers door, and the rear hatch. not sure about unhooking wires because they all look alike. just drove the truck fine about 30mins before this happened. went to start it and the security light started flashing. please help!!!!

Rear hatch is locked or unlocked with a key. (if equipped) • To open the rear hatch, insert the key into the lock, turn it to the unlock position and pull up the rear hatch by pressing the handle (DOOR). You can also lock/unlock the latch (but not release it) with the central door lock system. • If unlocked, the rear hatch can be opened by pressing the handle (DOOR) and pulling the hatch up. • To close the rear hatch, lower and push down the rear hatch firmly. Make sure that the rear hatch is securely latched.

change that master switch, if the passenger door lock can lock all doors except the driver door its a problem with that make sure the wire harness is plug in properly and before you change it get some electrical spray and spray the socket and the plug and try it again sometime by simply removing it and replace it solve the problem ok let me know if it work but am kind a sure it will

you'd better call a mechanic in your place.

Since the driver's door gets the most use, and all circuits run through the master switch, check driver's door first and check the wiring at the hinge area for breaks.

Shut the hood, make sure the back hatch is shut tight. Lock all the doors. Walk around and make sure they locked. Open the drivers door with the key. This should clear the security. If not lock it again and try the passenger side door. Reach in and unlock the drivers door. If it cleared then. Replace the drivers door latch on the back side. Inside the door.

The passenger door locks are controlled through the passenger door module. Power to the module is supplied by 20 amp fuse #46 in the IPM (integrated power module) under the hood. Make sure the fuse is not blown.

TRY PUTTING THE KEY IN PASSENGER DOOR SOUD LIKE SECURITY SYSTEM NO WORKING PROPERLY BUT TRY PASSENGER DOOR LOOK IF NOT TRY REAR HATCH

Try replacing the ECC fuse on the drivers side fuse panel. This seems to control quite a bit of the rear electronics.

Sounds like bad wiring, or bad door lock actuators. Check for power while locking/unlocking the doors.

I have had problems with this as well, and unlocking the driver door made it worse by setting the alarm off. I found out that unlocking the rear hatch with your key will disarm the security system all together