Doors will not lock with remote, interior switch or when car is shifted in gear. However, I can manually lock all doors and they will all unlock using the above methods.
I also have a 2011 Chevy Impala with the same problem auto lock does not work. Where is the relay? In the Chiltons book it shows the 3 relays but not where to find them. It say IP fuse block but nothing there is labeled lock relay,
Check the fuse. not sure which one, but your owner's manual will have a drawing of the fuse panel with a list of what each fuse feeds.
SOURCE: remote lock for back doors and rear tail gate door
Actually I found a solution. I remove the lock relay form the fuse panel and placed it back in place. I did not replace it. After doing this they worked. I probably need to replace the relay at some point, but for now that solved the problem. It was hard for me to believe that there is a separate relay for the lock and unlock circuit.
SOURCE: Rear doors and hatch will not lock with remote or from inside
check the clamp sensor front and back door
SOURCE: 2003 Chevy Avalanche rear doors won't lock automatically
The rear doors will not lock with the keyless remote, the drivers master switch
SOURCE: 2001 Chevrolet Impala Door Locks Suddenly Quit Working
Passenger side of the fender under the hood - check the fuse relay box - about $12.00 a piece - they do go bad from time to time.
exchange the power lock relay with another one and test the locks.
then put the relay back and go to the autostore.
For Doors not getting open with remote or key problem, there are help links provided below. Click the link below to go through its procedure and troubleshoot the problem: ----
Drivers side front door will not open from inside or outside?
http://technoanswers.blogspot.com/2012/01/ford-f-350-crew-cab-drivers-side-front.html
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Car door will not close?
http://howtobyme.blogspot.com/2011/11/car-door-will-not-close.html
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All power door locks not working?
http://howtobyme.blogspot.com/2011/11/all-power-door-locks-not-working-on_14.html
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Repairing car Door lock Actuator?
http://howtobyme.blogspot.com/2011/11/repairing-car-door-lock-actuator.html
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How to Access car door panel?
http://howtobyme.blogspot.com/2011/11/how-to-access-car-door-panel.html
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Vehicle door panel components?
http://howtobyme.blogspot.com/2011/11/vehicle-door-panel-components.html
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Truck Door will not close?
http://schematicsdiagram.blogspot.com/2011/12/ford-truck-door-will-not-close.html
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Where is Cars Door control Module located?
http://schematicsdiagram.blogspot.com/2011/12/where-is-cars-door-control-module.html
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Power door locks not working?
http://schematicsdiagram.blogspot.com/2011/12/power-door-locks-not-working.html
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Door ajar light stays on?
http://technoanswers.blogspot.com/2012/01/door-ajar-light-stays-on.html
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Door locks not working?
http://technoanswers.blogspot.com/2012/01/door-locks-not-working-on-ford-explorer.html
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Front Door dis-assembly diagram?
http://repairhelpcenter.blogspot.in/2012/02/front-door-dis-assembly-diagram-for.html
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Rear Door dis-assembly diagram?
http://repairhelpcenter.blogspot.in/2012/02/rear-door-dis-assembly-diagram-for.html
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How to test Power door locks?
http://repairhelpcenter.blogspot.in/2012/02/how-to-test-power-door-locks.html
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Doors will not open with Remote?
http://schematicsdiagram.blogspot.in/2012/02/lexus-doors-will-not-open-with-remote.html
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How to replace Door Hatch ?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-hatch-on-acura-integra.html
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How to remove Doors?
http://repairhelpcenter.blogspot.com/2011/11/how-to-remove-doors-on-acura-integra.html
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How to Replace Doors?
http://repairhelpcenter.blogspot.com/2011/11/how-to-replace-doors-on-audi-a4-and-vw.html
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Remote will not unlock Rear door?
http://schematicsdiagram.blogspot.com/2011/12/remote-will-not-unlock-rear-door-on-gmc.html
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Door locks or windows not working on car?
http://schematicsdiagram.blogspot.com/2011/07/door-locks-or-windows-not-working-on.html
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Central locking not working?
http://schematicsdiagram.blogspot.in/2012/03/this-is-how-system-operates.html
This will help.
Thanks.
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