2005 Trailblazer Door Lock Will Not Unlock

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2005 trailblazer door lock will not unlock.

Few years ago i purchased a 2002 chevy trailblazer it did not have a keyless entry fob with it. My driver side door will not look or unlock with the key or the switch only the manual level works. When the gate is in the open position a clicking noise can be heard every few seconds. Will not start even though it has power.

We have been useing the only keyed door to unlock vehical the drivers door. No other door hatch back or back window has a key lock. The rear locks won t budge have to unlock manually. Sign in to reply.

If so you have your answer. To the latch assy. 2005 trailblazer rear lift gate will not unlock using door or fob buttons lift gate open light lights up on dash and answered by a verified chevy mechanic. Try this procedure close all doors insert key into ignition switch press and hold door unlock switch turn ignition switch from on to off twice release door unlock switch doors will lock then unlock to confirm programming mode now simultaneously press and hold the lock and unlock buttons of the first remote transmitter after approximately 15 seconds doors will lock then unlock to confirm.

Power locks for rear doors and hatch not unlocking you have two relays on the interior fuse block one for locking and one for unlocking. 2005 chevy trailblazer ls v6. The 2005 chevrolet trailblazer has 8 problems reported for doors lock by themselves. Back door lock actuator windshield wiper key fobs all went dead at the same time.

Does the key turn and it doesn t unlock or does it not turn at all. Swap them and see if the problem is now such that they will not lock. I have checked all the fuses i can find and none have solved the problem. If it doesn t turn then you most likely have a problem with the latch assy.

If it turns and doesn t unlock most likely the rod has come off from the lock assy. I think the lock needs replacing but it is old so idk it is a nuisance though i might just find a door with the window and lock unit at pick a part and replace it. Average failure mileage is 68 800 miles. Rear hatch on 2005 trailblazer ls will not unlock.