I'm also seeing this behavior where it worked all the time when we got it, now it doesn't seem to work at all. It worked for a few min on our road trip but mostly doesn't now. I asked my case worker at Honda (I have a case for RES/CabinWatch issues) about this and she said it wasn't a known issue. I'm so deep in the other case I'm not starting a new one yet for this issue. Very interested to hear how this turns out though.

 

I had the same issue in our 2018 Touring Elite. Auto Stop worked for two weeks and then stopped working. Took it to the dealership and they had to replace the battery. According to them, the system does checks to make sure the battery is healthy enough to guarantee it will be able to start the engine again and if the battery is even slightly out of spec it won't allow for the feature to engage. Hopefully that's was the root cause.

 

I took mine in for this reason. They did a hard reset on the battery. It started working again, but only when we went out of town to a cooler climate. I don't think it works when its very hot and humid.

 

Just carping about the auto-stop "feature"

First, the wife is NOT HAPPY that the auto-stop can't be turned off once and forever. Seriously when it is in the 110 plus range every day now for months and the lows rarely drop below the mid 80s having the AC turn off at every pause is not so good.

She is also less than happy that the only work-around to keep it disabled that I have found is to set the rear fan to high and put up with the noise.

I'm not so amused by the lack of thought that went into designing the system. Why in the world did they design it so that when I pull up to a spot to park and take more than a second to push the Park button it turns the engine off. I guess I could learn to live with that but why does the idiot thing then restart the engine when I then push the Park button?

I'm hoping that Honda makes the disable setting sticky across restarts in the next software revision.

In the meanwhile, any other ideas on keeping it disabled without having to push the button at every start?

 

First, the wife is NOT HAPPY that the auto-stop can't be turned off once and forever. Seriously when it is in the 110 plus range every day now for months and the lows rarely drop below the mid 80s having the AC turn off at every pause is not so good.

She is also less than happy that the only work-around to keep it disabled that I have found is to set the rear fan to high and put up with the noise.

I'm not so amused by the lack of thought that went into designing the system. Why in the world did they design it so that when I pull up to a spot to park and take more than a second to push the Park button it turns the engine off. I guess I could learn to live with that but why does the idiot thing then restart the engine when I then push the Park button?

I'm hoping that Honda makes the disable setting sticky across restarts in the next software revision.

In the meanwhile, any other ideas on keeping it disabled without having to push the button at every start?

Maybe you can summon this company to make a device for the Odyssey.

SmartStopStart

They currently make their device for the Pacifica and it causes the system to remember if the stop/start was enabled or disabled when you restart your car in the future (they basically do what the manufacturer should have done).

I run SmartStopStart. One of the members here contacted me to make me aware of this thread.
The Odyssey has actually been on my shortlist for a SmartStopStart module.

In order to develop one, I need the help of a member. I would need access to a volunteer's vehicle for a couple of hours or so to take some data and program my module. I would not harm or modify the vehicle in any way. I need a volunteer within an hour or so of the Washington DC metro area. I would be happy to come to you or you can come to me if you prefer.

In exchange, you will get a free module, plus $50/hr if the time runs over 2 hours.

Anyone interested?

 

If your lucky your feature will stop working like a lot of us on here and you won't have to deal with it. Mine has not worked for the past month plus and quite happy with that feature malfunctioning


Sent from my iPhone using Tapatalk

 

I wonder if there is a fuse that could be pulled to disable this?

 

There is no separate fuse to disable the auto idle stop function.

Search the Electrical Wiring Diagrams (EWDs) for auto idle stop and you can view the circuit.

It looks like you may be able to ground the I/S_OFF_SW signal.

Connect the yellow I/S_OFF_SW signal wire (pin 1) to the black GND wire (pin 6) in the 7 pin connector.

http://www.odyclub.com/forums/81-20.../81-2018-odyssey/301281-2018-honda-odyssey-electrical-wiring-diagrams-ewds.html

 

Maybe you can summon this company to make a device for the Odyssey.

http://www.smartstopstart.com

They currently make their device for the Pacifica and it causes the system to remember if the stop/start was enabled or disabled when you restart your car in the future (they basically do what the manufacturer should have done).

 

Mine still hasn't worked since day 3 of ownership. I"ve had my ody since late May.

This discussion about batteries makes me wonder though. I do remember using the honda vac for the first time. About five minutes in to vacuuming, the low power alert came on. I thought that was very odd that after 5 minutes plus or minus, the battery was draining. SO I started the engine and kept vacuuming.

 

So, just picked my Ody up today from service. They had me bring it by earlier in the week to get some data dumps to send up the the engineering team. Crazy enough the darn thing is now working after being at the dealer for 3 days. I spent some time with the tech in the van with his computer hooked up to it driving it around. Yes, it worked and has worked all day today (94 degrees outside). The Tech swears they didn't do anything at all to the car, no changes, no updates, nothing.

Our theory is much what people are saying here, it's battery related. While my vehicle was there three things are different than when it's with me. 1. The headlights are set to Auto (where at the dealer they keep it all turned off) 2. My phone charging (I have a rapid charger in it for USB-C). 3. The RES system (while there they turn it off). The tech mentioned that the lights being on and other electronic items running in the car may drain the battery down and not allow it to charge fast enough even when running... or that the threshold for how much battery charge is required for the Auto Engine Idle Stop feature to work is set too high. Either way I'm turning everything back on and see how long it takes before it stops working again.

We are sending feedback up through the corporate rep on what we think could be some issues. At this point, wait and see, test and break I suppose. Has anyone else tried experimenting with some of those features to see if you can get the charge up enough for it to start working again? Would be interested to know if it works.

 

I have been checking voltage since I had a low voltage alarm and it seems to work at 12.6, but will not at 12.26V

 

Doc I got from my dealer. Hopefully useful to some.

Auto Idle Stop System Description
http://techinfo.honda.com/rjanisis/...SEY&year=2018&trim=&keyword=auto idle&dbkey=61THRD_C002308_enu&country=1&lang=0

Auto Idle Stop System Description - Operation Conditions
http://techinfo.honda.com/rjanisis/...SEY&year=2018&trim=&keyword=auto idle&dbkey=61THRD_C002309_enu&country=1&lang=0

 

When we picked ours up I noticed a strange oddity about the idle stop/start feature....if the conditions are met for it to operate, BUT you dont have the brake pedal depressed fully (I got a message that said on the instrument cluster that basically said " for Idle stop to work fully press brake pedal") now granted we where completely stopped but i had light brake pedal pressed, I pushed a bit more and the eng stopped. I released the pedal a bit without rolling it restarted...

 

Auto Idle Stop - how do I turn it off forever???

I've searched and searched... Has anyone come up with a reliable way (besides leaving the rear AC fan on high all the time) to turn this stupid feature off permanently? It drives me insane. Why would they make a 10-speed engine and then stop you from having any acceleration power at all?! So annoying. I get the concept, but it's just not practical and would love to stop having to remember to hit the button every time I get in. Thanks!

 

I've searched and searched... Has anyone come up with a reliable way (besides leaving the rear AC fan on high all the time) to turn this stupid feature off permanently? It drives me insane. Why would they make a 10-speed engine and then stop you from having any acceleration power at all?! So annoying. I get the concept, but it's just not practical and would love to stop having to remember to hit the button every time I get in. Thanks!

Hit the button that disables it every time you turn on the car.

That said, if you want something more done about it, call Honda’s customer service like and talk to someone there about filing an issue/complaint (I believe it’s 800-999-1009 option 7). This is the best way to get results.

 

I don't know why my question got moved here, it's a totally different question. Everyone was discussing how it didn't work - I want mine NOT to work. I don't want to push the button every time I get in, I want to permanently disable it. Please put my question back in a separate thread.

 

This is our best hope, form page 3 but there is a rewiring suggestion back there too.

http://www.odyclub.com/forums/81-2018-odyssey/304370-auto-idle-stop-feature-3.html#post1919433

I mentioned this to my dealer and they think they will sell like hotcakes.

 

Odd data point: I purchased an Elite and the auto-stop worked the first day but not after that. Now after 1200 miles and about a month later, auto-stop suddenly started working again. No idea why.

 

I hate this and want Honda to modify their software so you can permanently turn this dam thing off. It should be my choice whether I burn fuel or not at a stop. I also hate the lurch it makes starting up. We paid enuf for the Touring even with the Costco price that I expect to be able to control everything except safety features - but heck they let you turn some of them off, WTF? Wish I had the money to change everything on this car that I dont like, incl the body line dip. I've hated that since it first showed up on the Ody. Then the reduced size cup holders - I dont care if it has 30, if my large drink doesnt fit, they're useless. Good thing this is my wifes car, since as I write this post I realize there are a number of things I don't like about the 2018 Ody. I'll stick to my 70 F 250 & 77 Scout II, both restomod'd with features I want, none that are thrust upon me by a mfg. Waiting for a satisfaction survey from Honda, not that expressing my opinion will change anything.

 

Lots of manufacturers do this now...and Honda actually lets you have more control. At least you have the choice to shut off the Engine or not. Mercedes doesn't give you a choice unless you push a certain button combination each time you get in the car. I actually like the way Honda does it. That said, mine hardly ever works. I believe that manufacturers are doing this to meet the ever more strict fuel economy standards from the government.

 

Took our first roadtrip in the 2018. Abount 1500 miles total. While in Denver, the Auto idle kicked in at one light and that was it lol. SO it worked for the first two days we had the vehicle and not again except one time in denver

 

Any one still having this problem. mine worked for about 3 weeks and now it never goes on. the only thing that has changed is that i have a dash cam plugged into the cigarette lighter but i also turned it off and still nothing.

 

There's a company that made a little contraption that plugs into the OBDII port for newer Jeep Grand Cherokees. It remembers that you turned it off, so you don't have to turn it off every time you start the van.

 

The company is smartstopstart.com and I have been in touch with them because of this POS feature. They want a volunteer who's van they can use to plug into the OBDII port and gather data to manufacture a permanent stop box for the car. The volunteer gets a free unit, I think. Couldn't talk my wife into it. But if you go to the page and send him a message he will reply.

 

That thing is hilariously overpriced ($124) for something that takes you all of .5 seconds to disable when you start the car.

 

Truly...I think we are lucky actually. You hardly notice the engine turn off on our vans...and the start isn't too bad. Mercedes changed their loud exhausts for their fun AMG models...over to quiet polite sounding starters to accommodate the auto stop. I would be pretty angry to lose an awesome sounding exhaust system for fuel savings if I had paid for an AMG.

 

lol

 

After a little over a month with the 2018 Odyssey Elite, I'm convinced the Auto Idle Stop (AIS) is an invalid feature. I did not know about this feature until we got our elite. When I test drive the touring I don't recall this feature being in there. The first time I experienced the AIS feature at a stop light I was startled when the car turned off. I tried to remember to turn it off for the first few days until I decided it was a PITA to remember to disable it each time I start the car so I will try to give it a chance. I tried to adjust my driving habits but I still manage to get the car to turn off at drive-thrus, stop signs, and when parking. Needless to say, I give up and I wish I could turn off AIS.

- Is this the only car on the market with the dumb feature? There is no highlight of this feature on the Honda sales web site.
- There is no technical information of how much the feature can improve fuel efficiency. How long does the car have to be off for any gains?
- Does not turning the car on and off so frequently add wear to the starter and uses more gas?
- When can't the 2 seconds to kick in be adjustable to something like 4 seconds? If the idle time was adjustable then drive-thrus, stop signs, and parking may be filtered out for me.
- It's not like AIS feature is a safety feature or government requirement, why can't I permanently turn it off?

I think Honda FUP with this feature and I hope someone from Honda is reading this. I just need to vent my frustration when this feature.

 

It is on virtually all new cars now.

And in a round about way it is a government requirement...trying to meet fuel efficiency specs.

I did some research and saw that you can save about 3-8% on fuel efficiency depending on varying factors.

Don't worry though, it will stop working pretty soon anyways