Have you tried reading your manual? There is a section that explains how to disable passive locking. Hint: It's done through the personalization settings in the DIC.

 

This may be what you're looking for:

 

I set mine so it only locks. I have to listen for the doors to lock as I walk away

 

I have mine set to just flash the lights and not honk the horn.

.....and Tinman, the coupes are all electronic, no mechanisms. Completely silent.

 

Interesting. You say coupe has electromagnetic locks? I don't think so.

 

Not electromagnetic, electronic.

Three of GM’s Coupe styles feature an electronic lock that allows for a flush, aerodynamic exterior door handle. The cars are Chevrolet Corvettes built after 2005, and the Cadillac CTS Coupe and Cadillac ELR Coupe. By extension, the interior release is also electronic, rather than mechanical.

https://youtu.be/_Ly3esBqlhs

 

XLR debuted the flush door handle/electronic door switches first, in 2004. It's a simple, reliable system, and there hasn't been much of a change in its operation since XLR production stopped in 2009.

When the door latches fail to operate properly, it's usually the driver or passenger interior or exterior switches, followed by the applicable door module. In the case of the XLR, there is no mechanical linkage that moves up and down to indicate door lock position. XLR uses an LED Door Lock Indicator that flashes to indicate status on the window sill.

There is a door latch, activated by the switches from the respective door module. It's electro-mechanical vice electro-magnetic. It doesn't make a loud, mechanical sound like a typical automotive solenoid, but quietly "thumps" --due to a very short throw, as it unlatches, as described above. The trunk latch is much louder, using a longer-throw solenoid to disengage the latch.

For this problem, since it's rare for the interior or exterior switch to simultaneously fail, the latch is suspect, followed by the door module. But . . . If a switch is shorted, it can send a continuous signal to the door module, preventing normal operation. Membrane switches usually fail open, but anything is possible.

It takes just a little longer to connect the scan tool than it does to troubleshoot the problem with it. A two-minute scan at a dealership will check all of these conditions. After it's diagnosed, you could order the part yourself (online, paying what the dealer pays) and perform the repair yourself, buying a nice set of indispensible trim tools with the money you save.

CCC

 

I just can't imagine lock without mechanical parts (except electromagnetic). Electronic can be driver but not lock itself (if I am wrong please send me a link where I can learn about it). I can believe in very quiet mechanism, so someone could not hear it while lock/unlock.

 

There is absolutely no sound when the doors lock, when you lock the doors inside using the button, you get an electronic beep, but there is no mechanical sound at all. Every single car in my life that I have owned or ridden in, you can hear the mechanism when locking, some louder than others. Nothing in the V-coupe.

When in my garage with the overhead door closed, absolutely quiet. Exit the car and after a few seconds, the lights flash and not a sound.

My speculation is this....

Remember that like the Corvette, on the V-coupe (and non-v) the mechanism that releases the doors are essentially poppers. From the interior you press the button and the door "pops" open. From the exterior you press the touchpad and the door "pops" open. My speculation is that when the doors are "locked" the interior button and the exterior touch pads are disabled (turned off) and the doors are essentially locked.

I'm searching to see if I can find a technical explanation...

 

^^Yep, absolutely quiet when locking/unlocking.

I think your theory is probably correct. Looking forward to what info you can find.

 

^^Missed the XLR, good catch and thanks for the info!

 

Your doors have a electrically-operated mechanical latch for crash safety reasons. When it unlocks, the door moves outward slightly. It may be nearly impossible to hear, but it's there, inside the frame (not the door.) The latch is also enabled with a back-up mechanical release handle to open it, just like the XLR should there be a loss of power.

CCC

 

There is a difference between opening the doors and locking/unlocking them.

When the touch pad on the outside of the door or release button on the inside, or the lever beside the driver/passenger seat is used, the door "pops" open. This action can be seen and heard.

When the door is locked or unlocked there is zero sound, period.

 

There is a difference between opening the doors and locking/unlocking them. When the touch pad on the outside of the door or release button on the inside, or the lever beside the driver/passenger seat is used, the door "pops" open. This action can be seen and heard. When the door is locked or unlocked there is zero sound, period.

That's what I'm sayin'.

 

You're both correct. In the absence of a mechanical lock --in the case of these cars, that function is controlled by their respective door module, hence no sound.

CCC