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Discussion Starter #1
This morning wifey called me and said that there were multiple warning lights on the car and it was beeping angrily at her. Luckily, this malfunction occured within a mile of the house. I went to swap cars with her and drove it home to deal with it further. The warning lights were:

-road departure mitigation system warning
-trailer stability assist warning
-hill start assist warning
-vehicle stability assist warning
-emissions system control warning

Of course on the drive to the dealer, about two minutes away from pulling in, the warnings disappeared. Luckily, atleast I took pictures.

Took it into dealer, they said may be alternator but will call me with updates.
 

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This happened before to me as well. Likewise, the warnings disappear on its own. I didn't bring it into the dealership since these warnings never came back.
 

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I had this happen to me as well and the vehicle eventually stalled. The vehicle had to be towed to the dealership. They replaced all of the injectors, fuel sensors and some other components. It seemed like it was fixed for about two weeks but since then the vehicle has hiccuped a few more times and due back in the dealership next week. I don't think the dealership or HONDA has a real handle on what is going on with the vehicle.


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It has happened twice now. Both times we were driving it. After the warning lights the car went into limp mode, where it feels like it has only half power. The first time the vehicle eventually stalled and had to be towed. The second time I drove it to the dealership. The first time they replaced the injectors, fuel sensor/s and something else which I can't remember. The second time they reset the engine management system and took it out of limp mode. It is booked in to to get the valves adjusted next time. It seems like they really don't know what's going on.


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Discussion Starter #6
Update:
We took it to the dealer (of course all the warning lights were gone) and they looked into it, said they spoke with honda engineers, told me they did something with the software as far as either updating or flashing it...not sure. the electrical components tested out fine, including battery and alternator. Nobody really seemed exactly sure what this was. When the warnings were on, the car seemed to drive fine. No starting problems. Car has been fine for past couple days since. They said they had a 2016 model that had similar symptoms a few weeks prior but they had a bad alternator.
 

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Discussion Starter #7
Yes she was driving when this happened, got to about 1 mile from the house when it started with the warnings.
 

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Subscribed. This was happen to me as well all warning light WifeyMobile mentioned. But it showed only after starting the Pilot. Parked it before work around (8am) started it again after work (5pm) then multiple light came on one afternoon then after couple of night suddenly the warning light went off and everything went back to normal its on the second day now that I am observing the Pilot. Hopefully it wont be happening again. :-( So far almost a year of use this is the only issue i experience and I am planning to own my pilot for a longest time.

P.S. I'm from Jasper Alberta Canada and its winter cold in here now around -20c to -25c when it happen. Wondering if the cold temperature is the reason why this is happening.

@scrubber I think I felt the same LIMP mode you've experienced as well when the lights are on. and went back to normal when all the codes/warnings cleared on the dash :-(
 

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Plug in a code reader and see what it is showing
 

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@poorman unfortunately i do not have the reader. The maintenance manager says whats going on they even sent a message into the radio.

@Mtbiker. How long did your light went on?
 

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@poorman unfortunately i do not have the reader. The maintenance manager says whats going on they even sent a message into the radio.

@Mtbiker. How long did your light went on?
Not sure where you live but many places will read codes/check codes for free - I think the countries of Canada and California have some laws about NOT doing this. If nothing else and you like the idea of having information and not at the mercy of guessing/taking the "shop's word" on what is going on - you can buy a simple code reader for not that much money.

Don't take this the wrong way - or anyone else posting in this thread - This thread is nothing but "guessing" and throwing out ideas/what happened. Even if you have the same code as someone else, what fixed their issue might not work for you.

Example: A "P0420" code, there is a laundry list of tests that should be done before replacing anything. It "could be" the converter, a bad injector, a lazy O2 sensor, a bad component in the ignition system........and I could keep going :)
 

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Discussion Starter #13
This just happened to me again tonight, ironically in the exact same spot on my drive that it happened the last time. since it was night time, I was able to notice the interior lights were flickering, as well as very rough engine idle, warm engine was idling at about 1200 Rpm in park, which I know is high. When giving throttle in park, engine was very sluggish to rev up and to slow back down. Will see if I can get my Bluetooth code reader to pull a code to help dealer get this solved in car decides to fix itself and be on good behavior for the dealership like it did last time.
 

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Discussion Starter #14
Just went to the garage and hooked up my obd reader, got it to work after a little struggle getting Bluetooth to sync. Pulled a P2657 code. Hopefully this will help in the likely event that it magically goes back to being all better again as I pull into the service garage.
 

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Discussion Starter #15 (Edited)
Updates:

The 2nd trip to the dealer they diagnosed it and replaced some engine sensor, which did not resolve the problem.

The reason I know it didn't resolve the problem is the lights went off and the car became undrivable again, this time we have a tow truck scheduled for tomorrow to take it in for the third time. I'm going to let Honda start racking up little tow bills because I'm not driving this car like this, even though the lights went away I still don't trust it. The dealer has been very nice through all of this and I don't blame them. They didn't build this thing to be so complicated. It just has too many parts and computer systems. I suspect they ultimately won't fix it because it's just too complicated, and I suspect that I will ultimately be left to seek a lemon claim against Honda for this vehicle. This car is about to meet the legal definition of a lemon very soon. It is a shame that such a beautiful piece of machinery will probably not get to live out it's normal expected life. 5,000 miles and it's basically unusable for dependable travel. I will never trust this vehicle. Wifey wants to get another one because it's really nice, and although it has a nice ride, fit and finish, I doubt I will go for this car again. I think they cut major cost out of this thing in terms of quality of parts. Hopefully I can get Honda to just buy this thing back without involving attorneys. Once this ordeal is finished with this junky Pilot I will probably buy a Lexus GX 460...Seems a little more old fashioned, probably with less complicated computer problems. I don't have time to be taking a $40,000 car to the dealership every couple weeks. I'm not at all happy to be a Pilot owner about 4 months in and very much regretting the decision to buy this. I'll keep y'all posted on any progress.
 

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I really like the way you are handling this with the dealer.
They could be the key that helps you into a replacement vehicle or at least out of this one.
 

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Discussion Starter #17
So this had us getting very nervous, turns out the replaced the "spool valve" this time. So far, so good...I think I noticed much improved performance in that it seems to be driving better than it ever did, maybe this part was (hopefully) failing the whole time we had the car and now we're all set to go! It's been about a month since the repair, so I am feeling a little more hopeful now that it has been fixed. Also after this scare we opted to get the extended warranty from Honda after recognizing that if we have something like this flare up outside of warranty, it could make the car no longer economical to own.
 

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Glad it all worked out for you/her
 

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Modern vehicles are such complicated pieces of machinery, with sensors, timings, cpu and software running so much all at once. Unfortunately, even using the highest quality components does not always mean you won't have a problem. Failures just happen sometimes. Glad it is worked out.
 

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I had the same problems today (2016 Touring) with all the warning lights and had it towed in because power steering failure was one of them :(
 
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