Is there another way to get the locking unit to lock and unlock?
Possible causes you could be not right lock or unlock procedure is you door closed? Must also program 2 remotes back to back not seperately. You tube has get videos step by step on this as the readable instructions kind of suck. Check it out! We can go from there. Key Fob Remote Programming Instructions 2005 Chevrolet Uplander Key Fob...
SOURCE: rear hatch 2005 chevy tahoe is locked & won't open
my 06 tahoe just got this problem...all other doors lock and unlock with the fab and door switch...but the hatch is in permanent locked mode. i cant even unlock the hatch window. why is this happening?
Yes it is,the drive door actuator being non op
SOURCE: fob stopped operating the door and back hatch locks, cannot lock back hatch
the battery is dead
SOURCE: 2003 Monte Carlo SS, FOBS
did you think to check the remote batteries. change them. if thats not the issue ....then sounds like the power is not getting full power from battery of vehicle. clean cables and try again. Some vehicles have a way that you have to use to reset automatic doors that open by remotes and such so if any of this helps let me know. Certain ones have to be reset by a diagnostic scan tool.
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