[tom.gabriele]

I have a 2018 V6 AWD TLX. It is supposed to have the VCM cylinder deactivation, but I can't ever feel in kick on or off, and have never seen a notification of it. Googling seemed to indicate that some Acuras have a dash light that comes on when VCM is active, but I've never seen it.

Is there any way to tell when VCM is active on our cars?

 

[Gonzo]

The TLX does not have any indication.... but you mention your TLX has the VCM deactivated? How so?

I can say for sure than when activated you can feel it, its like a slight rumbling feel in the engine.

 

[tom.gabriele]

you mention your TLX has the VCM deactivated? How so?

No, the feature is not deactivated (as far as I can tell), I was just calling it "VCM cylinder deactivation" somewhat redundantly.

Is there any surefire way to get it to kick in so I can learn what it feels like? Highway cruising at 60 ought to do it, right?

I think I am pretty picky about how the car feels, and have still never noticed it, so I am wondering if mine is working right. My mileage seems low too, which is also making me suspicious. My commute is like 60% highway, 40% backroads at 25 or 45 mph, and I average around 21-24 mpg per tank.

The car was in the shop a few times when it was new for the AWD highway vibration problem (got the Michelins and everything), and I am wondering if they turned VCM off to "do me a favor" and cut possible vibration.

 

[Gonzo]

I don't think they would have turned it off. Unless you have an after market feature I would think it's still enabled. 21-24 MPG is about right.