Passive Unlock only working on passenger side 2012 Regal GS

[agaric]

jmorris fixed his problem over 4 years ago by repairing the door handle wiring.
See post #16

 

[Bigryno]

jmorris fixed his problem over 4 years ago by repairing the door handle wiring.
See post #16

👍

 

[bugspop1]

I realize this is an old post, but.
When I went out to the car tonight and hit the Back Drivers Side Button nothing happened.
I moved to the Front Drivers Side Door and it worked just fine.
After exiting the car at my destination, I walked around the car and tried the Passenger Side Front door, it worked.
I then walked to the Back Passenger Side Door and it's not working either.
Haven't had a chance to check the Trunk Latch yet
So, neither Rear Door Button is working.

I've owned this car for about 2.5 year and All Four Door Buttons have been working flawlessly, I use them all of the time.
I rarely get either remote out to use them, they are in Protective Carrying Cases.
I did replace the Batteries in Both Remotes about 2-3 months ago.
It's funny that both Rear Doors would stop working at the same time!
I originally was thinking a Fuse or Relay because both went at once,
but now I'm not so sure?

I'll try to trouble shooting once it warms up again (No Garage to work in).
If this would have happened yesterday, I could have looked at it, it was 60°.
Tonight, our high is only around 27° with the wind chill.

 

[bugspop1]

About 2 hours and 15 minutes after the problem with the Rear Buttons, I
went to my car and they were working again.
I'd been sitting watching my grandsons Karate Class for two hours (he's 1
step away from being a Jr. Black Belt, the Test will be in January or February).
I'm wondering if the Car Battery is on its way out?
The Car Battery is only about 2 years and 3 months old, not that old IMO.
I think the battery has a 3 yr. Free Replacement, maybe I should check into
it and see how the battery actually is?

The Battery is an AC Delco purchased at the Buick Dealership my oldest son works at.
As a matter of fact, he came out and got me and my grandson when
the car wouldn't start, we were at Karate Class on a Saturday afternoon.
We drove out to his work and picked up a New Battery, then drove back
across town and he installed it!

I'm going to be taking my car in to have the Transmission checked in the first
week or two of January.
I'll have them check the Battery at the same time.
I may just have them do an Oil Change too, while it's there.