[VoltFish]

Here's what my car does... this is consistent behavior which I consider a bug:
1. I have disabled the "auto door unlock" feature in the menu so when I turn off the car the doors remain locked.
2. To open the door I have to either unlock the door with the door switch, or pull the door handle once to unlock it, and then again to actually open the door (which is what I do most of the time).
3. When I exit the car I want to just push the button on the door handle to lock the doors, this is how I always locked the car before I turned off the "auto door unlock" feature.
4. Instead of locking the doors when I push the button the first push seems to fire the motor to unlock the driver door again (even though it was already unlocked since I just got out of the car), then the second push of the button unlocks all the doors, then finally the third push of the button locks the doors.

It seems that when I pull the handle from inside the car to unlock the doors the car doesn't get the message that the doors are unlocked, then when I push the button on the outside of the car it behaves as if I just walked up to the locked car (first press unlocks driver door, second unlocks all doors, then third press locks them all again), even though the door is already unlocked. I expect the first press to just lock all the doors.

I suspect this is an issue with all cars but I'm curious in anybody else can confirm this or has found a workaround.

 

[Joe67]

Are you leaving a key fob inside the car while you do this?

 

[VoltFish]

Are you leaving a key fob inside the car while you do this?

Nope. This is happening consistently with normal driving habits (only my key in my pocket). I started noticing it because I would come back to the car and realize it was unlocked and when I pushed the button it unlocked all the doors since when I exited the car my single button push just tried to unlock the driver door again rather than locking all of them. I would then just walk away since I was used to the single press locking the doors.

 

[Jand]

YES!
I changed that setting recently. I have had several instances where it seemed that my car was unlocked when I returned to it. Upon returning, I would push the handle unlock button and it would engage but instead it would lock the door, meaning it was unlocked while I was away. Just today I looked at what was happening. After opening per 2 above, I got out of the car and hit the lock button on the outside handle and the pin fired, but it seemed to be the unlock command, since it did not lock. After that the auto-lock did not function to lock it. Hence the instances of an unlocked car. With tinted windows it is not obvious unless you are actually looking for it.
No FOB inside the car.

 

[wordptom]

This behavior has been noticed before in a thread relating to the triple-horn warning.

It would appear that when the door lock/unlock switch was moved from the center stack on the Gen 1 to the individual doors on the Gen 2, the "double pull" on the driver’s door handle will still open the door, but no longer sends an "unlocked" signal to the computer.

Perhaps this was deliberate - if you don’t want the doors to auto unlock when the car is turned off, then you might also not want to signal the computer the doors are unlocked merely because you got out of the car from the driver’s seat.

The Gen 1 switch locked/unlocked all four doors. The 2017 manual indicates the Gen 2 switches are configurable - can apply to the driver’s door only or all four (as you can also do with the key fob).

Do you still experience your problem when using the door switch to unlock the driver’s door, rather than using a handle double-pull? Perhaps this change also applies when using the door switch to open the driver’s door. Configuring it to open the driver’s door only with the first push only allows you to then pull the handle and open the door, but doesn’t send an "unlocked" signal to the computer.

Have you tried, once getting out of the car via a double pull on the door, pushing the lock button on the fob instead of the door handle to relock the car?

 

[deeks]

2017 Volt manual-pg.32---Passive Locking :vehicle will lock several seconds after all doors closed if vehicle off+at least one RKE removed (or none remain)in the vehicle.Note following suggests electronic interference with RKE signal may cause vehicle NOT to detect RKE left inside when passive locking enabled.Consequently,(as I understand it),I have disabled (OFF) Passive Door Lock (Pg.146) to prevent possibility of leaving RKE inside.

 

[clint fisher]

wordptom's comment is spot-on and is the most likely cause of the problem. GM requires that I bring it in and leave it with a dealer so that they can start whatever work process they need to fix things (nevermind that the problem is reproducible on any Gen2 Volt on their lot. I just haven't had time to do it.

I would much rather have my car NOT unlock doors when I put it in Park (safety in rough locales). The triple-honk was so annoying though, that I changed it to only unlock the driver door.

 

[hellsop]

I would much rather have my car NOT unlock doors when I put it in Park (safety in rough locales).

So turn it off. That's configurable. From the Fine Manual:

1. Press the Vehicle
Settings menu.
2. Select Power Door Locks.
3. Select Auto Door Unlock.
4. Select how the doors will
automatically unlock.
5. Press Back to return to the
previous menu