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On 5 occasions since purchase of 2019 PP, the car has not restarted after removing foot from break with "shut down" activated. On most occasions there is no msg on dashboard. Also, transmission shows N and start/stop accomplishes nothing. The last time this happened I was in stop and go traffic on I35 during rush hour traffic. Finally, a msg came on dashboard with "accessory mode". Eventually, I was able to get it restarted after 2-3 minutes, but not immediately when it happened.
Honda dealers have not found anything in car computer that this happened.
Anyone experienced this or has suggestions

NHTSA is investigating the start stop issue in several Honda vehicles which includes the Honda Pilot from whose parts bin Honda built the Passport. Several members of this forum have experienced the problem you described or a version of it, searching "battery" here will get you a deluge of problem threads. The issue is basically an inadequate battery problem, Honda seems to have shipped many vehicles using it's start stop system with batteries that can't hold a charge or cannot handle the strain of repeated restarts.

Try manually disabling the Idle Stop system every time you start your car with th button on the center console. My wife drives the Passport we own, I installed an Automatic Idle Stop disabler for her because she forgets to disable it. Since the battery in your 2019 Passport is a few years old now, you should also consider having it checked and replaced.

 

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Happened to me once, talk about panic when you are sitting at light and wondering what just happened? I drove from Charlotte to Raleigh NC - stopped for gas and boom at 2nd light after leaving. Cars honking and wondering what was going. No error messages so nothing helpful to diagnosis. Finally broke down and ordered auto idle stopper so hoping that solves any further issues. No battery issues I can tell and I had just driven solid distance for battery to be fully topped off. I generally try to hit the button to shut off but don't drive enough (working from home) to make it a solid habit. Maybe Honda can send me $85....

Other forum members have reported similar experience, the car starts when they left home, they drove for several miles or for a duration of time that would have had any healthy battery fully charged up by the alternator, but they stop to pick up groceries or something that takes just a few minutes, return to the car and boom it won't start until they got a jump from another vehicle. Makes me think that regular driving or lack of it is not the core reason the vehicles battery fails to start the vehicle.

 

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This is the type of thread I was looking for today. 2019 Passport Touring, now we've had 3 no-start issues recently. The last two were this weekend and today. On the weekend (Sat), drove about 100 km, got home, unloaded the car and went to re-start it, dead, won't start. Took the other car, didn't boost it. The next day (Sun), Passport started no problem on it's own, no boosting, no nothing.
Next day (Monday) Passport starts fine, wife drives to work - 35 min away. At lunch, goes to leave,Passport won't start.

This can't be a battery issues, and batteries don't magically recharge themselves sitting in the driveway without the car running.
There must be a bad connection, or some piece of software preventing it from starting...

Anyone else having this issue, i'd love to hear your stories...

You experience is familiar, @Tadakatsu reported a similar experience in the thread below, several other members have reported similar experiences too - vehicle is driven several miles, parked for a few minutes and it won't start when the driver returned. Also in several of these incidents the vehicles starts without a hiccup the next day. All these seems separate and distinct from the Start/Stop failure to restart issue.

It's a situation of particular interest to me and I'm beginning to agree that indeed there may be an undetected gremlin in the vehicle's starting system.

Battery Died Today...

The issue is not going away, for those that do not drive a lot. Get yourself a trickle charge that can be switched between a standard battery setting and our AGM battery setting.

www.passportforums.com

 

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Glad to know your son is okay. With the Idle Stop feature permanently turned off your new battery should live longer than the old one.

My wife is the primary driver of our Passport but I installed the IdleStopper in it even without her asking several months ago after reading some of the painful battery experiences reported here. Batteries die all the time but it's less of an emergency if she can't start the car at home or in the parking lot of her work place but because her trip to work takes her through an industrial area, it would be an absolutely scary experience if her car refuses to start at a rail crossing or a stop sign at some lonely intersection.

By the way, I installed a trickle charger at home too despite the pain of bearing my GM loving neighbor snarkily asking every time he see the hookup cables connected to the Passport - "What range do you get from this Tesla?"

 

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Apologies for not (thoroughly) going through this thread. Below are my experiences that may be related to this discussion:

Bought 2022 PP Elite at the end of December 2022. Drove ~1000 miles before long trip to Big Bend National Park. About 2300 miles at present. Parked the PP for about 5 days until this past Saturday.

Saturday:
Auto-Start-Stop displaying message of 'disabled because of temperature or charging.' Drove about 50 miles (mostly HWY) auto-start-stop never happened.

Sunday:
Drove about another 50 miles and towards the end of the day, the car finally successfully engaged auto-start-stop.

This morning:
Auto-Start-Stop engaged normally after engine & cabin temps reached.

I'm not sure if this 'update' has been applied to my vehicle. Is there a way to know other than asking the stealership?

From my experience, though, it sounds as if the update has been applied. Otherwise, the PP may have attempted to shut down the car without enough juice to start back up.

By the time the 2022 Passport was rolling off the assembly line Honda had corrected many of the issues that raised owner complaint in the 2019-2021 models. For the Start/Stop system software update, some 2022 owners like @ellisd with an earlier 2022 Passport reported getting a push notification about it but I think it's safe to assume that a late 2022 Passport has already gotten updated from the factory. Unfortunately Honda did not set up an online VIN verification system for this update so the only way to be certain your Passport got it is to visit the dealer.