I've only noticed now but my "Auto Idle Stop" seems to have been permanently disabled (i.e. the engine no longer shuts off when I'm at a full-stop)...and for a couple of weeks now. Did Acura update the software recently? Or was there a sequence of buttons I accidentally pressed?

Either way, I'm not complaining, I always found the feature very annoying to shut-off on every drive.

 

It might be because of the cold.

 

Hemm, I don't think acura disable it..

 

It's because of the temperature

 

 

Mine hasn't stopped itself at idle since August. I know it's getting colder but we've had several days since then with ambient temps in the 15-20 degree range. This feature is pretty much pointless if it's only going to work three months out of the year.

 

That's interesting. I hardly ever drive the RDX (200 miles in two months) but did notice, now that you mention it, that it has stopped shutting off....temp around 50. Weird.

 

 

Understand, but for me, I never drive in S and always in Comfort.

 

Nope, I've been using Comfort or Sport this whole time. Sounds like it could be the drop in temperature that everyone's mentioned. It's been between -4 to 8 degrees Celcius in Toronto the last few weeks.

 

Ambient temp will only disable S/S if it's below -4F (-20C). Coolant temperature being low is another reason as well as the climate control settings (defrost on). Pages 430 & 431 of the OM list all the conditions that will disable it.

 

I've tried everything on that list that I can control to make the auto idle stop activate and it's not having any of it.

 

Not to worry, it will re-appear next spring.

 

 

Mine continues to not work (yay)...message just say auto stop is unavailable.

 

 

Mine continues to not work with no symptoms whatsoever (well, except for the whole not working thing). Enabling and disabling with the dash switch yields the proper messages and indicators, it just never shuts the engine down.

 

Mine hasn't worked in weeks but the ambient temperatures have been above -20C for the most part. Perhaps the system is running the a/c as a means of dehumidifying the interior, thus satisfying the "climate control in use" criteria. I had other vehicles that ran the a/c quite often in winter even when the controls were not set to command this.

 

High humidity is listed in the O.M. as one of the factors that will disable the s/s function.

 

And after two days, out of the blue, mine has started working again.

 

 

I do believe that if you have the heated seats on. No workie. They draw too much power from the battery.

 

My 2019 rdx the idle stop works like every other day. Some days it works fine sometimes it wont work for days. Is this somrthing they can fix.Not that Icare but I feel like I paid of something that doesnt work