Hello, I was driving down the road and my collision mitigation light quickly flashed on and then went off with no objects in front of me or bad weather or rain. Also, my vehicle felt like it tapped the brakes and the steering wheel slightly jerked a little. It was maybe a half second long and then went back to normal. I kept driving and the vehicle did it once again and then 2 more times. The last time I was pulling up to a light when it did it. I should have pulled over first but I decided to turn the vehicle off and turn it back on to maybe reset the computer. Also, I know the car does this anyway when I have my auto start/stop button on. I usually turn it off when I drive. I've had the vehicle since 2018 with no issues before so I was pretty confident it would immediately start. When I tried to turn the vehicle back on, it had completely lost all power and wouldn't start or give me any sign of power. The scary thing was that I was in rush hour traffic with my young kids in the car and I couldn't put my caution lights on or put the car in gear to push it to the side of the road. Again, I should have pulled over first, but there was no logical reason the vehicle wouldn't start. I put the hood up but nobody behind me could see the hood up. I'm stuck in the middle lane of traffic and had to get out of the car to signal traffic to go around me. I checked my key fob batteries and the vehicle battery connectors and everything was fine. I kept trying to use the key fob to unlock the doors every minute or so to see if I could get any kind of power, as well as try to start the vehicle again. After about 7 minutes or so I regained power and was able to drive home, which was about a half mile away. A message on my dash screen displayed "Anti theft System" "This system has lost power. Push and hold the power button for more than 2 seconds to enable the system". I did this and cleared it. I think the Anti Theft System turning on when it shouldn't is the real issue.

- Columbus, OH, USA

On multiple occasions with the auto engine restart engaged, the engine has shut off while stopped at a stoplight and then failed to restart the vehicle upon attempting to go. On some occasions, the power blips but the engine restarts. On other occasions, the power blips and the car stalls, leading to having to fully shut the car down and turn it back on, with a successful restart. On a few occasions, this has taken multiple tries leading to the vehicle sitting at a green traffic light for over 15-20 seconds while attempting to restart the engine. This is a safety issue as I am now scared to leave the auto-restart feature engaged for fear of being stuck at a green light and rear-ended. I have tried to turn the feature off, but there is no way to disable it permanently-?? instead, I have to remember to turn it off at the beginning of each drive. This issue has been ongoing for over two years. I have replaced the battery which did not solve the issue. It has not been looked at by the manufacturer, police, or insurance.

- Houston, TX, USA

Periodically, while using automatic engine idle stop, when I release the brake to restart the engine, the engine will shut off and not turn on. Only pushing and holding the start button will restart the engine after about a minute. Also, more often, when the engine restarts, all electronics will flicker off then on.

- Andover, KS, USA

Malfunction with the auto start/stop function on my 2017 Honda Pilot. When the car was in the first 40K miles, sometimes I would notice a longer than normal pause for the car to restart and engage the engine. It happened occasionally and I noticed it most often when pulling into traffic and needing to do a fast acceleration. This felt unsafe because I didn't feel like I could reliably pull out into traffic with speed and immediate timing. At approximately 40K miles I started having issues when my engine would die when pausing at a stoplight, a stop sign, or a round a bout. One particular time I had my children in the car, was in rush hour traffic turning left (so was in the intersection). As I tried to make the left turn at the yellow, the engine went into neutral and my car was unsponsive and would not shift into drive or re- engage. I tried to restart the engine a couple of times. Finally I waited approx 10 seconds and tried again. The engine turned on at that point and I was able to pull out of the intersection. It was a really horrible and scary experience for my children and for me. For the past 20K miles, I try to consistently turn OFF the auto start/stop, because I feel it is too dangerous. I don't always remember, so still have had issues with the engine dying. There is not a way, to my knowledge, to engage a setting where it is always disabled. It is very frustrating to have to remember to manually turn it off every time I start the engine. I estimate, even with regularly turning off the auto start/stop, my car has died 10 additional times....at traffic lights, stop signs, and round-a-bouts. It always moves to neutral in those cases. A few times it will start right back up after I shut my car down (in the middle of the road with traffic behind me). Other times it takes several attempts, or a long pause where I count to 10 and try again. When I talked to the dealer, they said they had no knowledge of the issue, which was also frustrating.

- Fishers, IN, USA

My car shuts itself off at stoplights to save fuel. There have been 4-5 times where I couldn't get the car to restart when the light turned green. It is a scary situation to not be able to restart the car in traffic or when I'm in another city away from my home. I have heard this is happening to others too. Please investigate.

- Germantown , TN, USA

The auto Start / Stop feature that shuts the engine off while stopped at stop lights has failed to restart the car dozens of times over the last year. While stopped at a light, the engine shuts off as expected. Then when going to release the brake pedal to pull away from the stop light, the car fails to restart. The method to restart requires putting the car into park, applying the brake, pushing the start/stop button, and then putting the car back in drive. All while traffic behind me is trying to move forward. This is a very scary situation in a busy intersection. After many instances, my wife and I are very fast at the restart procedure, but we get nervous anytime someone else drives the car. Replacing the battery seemed to help for a few months, but did not stop the issue. The issues seems to happen more frequently in hot weather situations where the air conditioning is pulling a large load on the electrical situation, although it also happened a few times over the winter when the heater was running. There are no warnings, lights, or messages that appear on the dashboard. This relates to Investigation # PE 22-005.

- St Augustine, FL, USA

My 2017 Pilot has a "feature" where the engine will turn itself off when fully stopped and in drive. Sometimes the car won't restart when you remove your foot from the brake, and sometimes it struggles to restart. I have been stuck at an intersection before and had to restart it myself manually. When this happens, it also gives me a warning that one of the safety features has a problem (I'm not sure which one, maybe collision warning?) I've started to simply turn off this "feature" when I start the car, but sometimes I forget and then it happens again.

- Sugar Land, TX, USA

In January 2021 our 2017 Honda Pilot Battery was replaced by the dealer, Anderson Honda, in Hunt Valley. In February we started experiencing problems when Auto Idle is engaged (as it is when you start the car). We were sitting at a red light and the car shut off (as it is supposed to with auto idle). When the light turned green the car was off and wouldn't turn on for about 8 minutes we were stuck at the light with no abiltiy to turn the car off or move the car. This happened repeatly, the car does not start again for many minutes. We took the car to the dealership numerous times with no solution. It is very dangerous to be blocking traffic with an immobile car.

- Parkton, MD, USA

Vehicle will stall out at an intersection, or stop sign after the auto restart shuts the car off. When I lift my foot off the brake for the gas peddle, the entire car stalls and I get a series of warning lights and messages about shifting the car into gear before restarting. Despite attempts to restart the car, I'm generally stranded for 1-2 mins. I brought the issue up to the dealership last time I brought the car in. After 1 test drive they claimed to have found no issues, and that if it happened again I should "film it happening with my phone". This is now the 4th time this has happened within the last 6 months.

- Burnsville, MN, USA

stop/start functionality stalls the engine, forcing me to restart

- Stillwater, MN, USA

On several occasions, the automatic idle and restart system has failed. While setting at a red light with a breaking engaged the engine goes off. When releasing the break the engine does not restart automatically. Sometimes it restarts easily and sometimes not taking two to three attempts to do so while traffic is backed up behind me at a stoplight

- Inverness , FL, USA

The auto stop/start feature does not always restart the car when I release the brake after stopping. Mostly in town at stop signs and red lights but recently it happened while I was in stop and go traffic on an interstate. At all locations I was blocking traffic (flashers on of course) and hoping no one hit me while I sat for a few minutes trying to restart my car. From experience I have found that I have to release the brake and push my engine start button a couple times to completely turn off everything then push the brake and button to start the car. A few times it I had to do that cycle several times before it actually restarted. Meanwhile I am in the middle of the road completely blocking traffic. My dealer was -??unable to replicate-?? so my solution has been to turn off that feature. Unfortunately, auto stop/start is automatically on every time I start my car -?? so this happens when I forget to turn it off. There are times that it works and the car restarts but even then the electrical system shuts down. Radio turns off and back on as the car is restarting and dash lights turn off then on, which reminds me to once again turn the feature off. I have had a lot of electrical issues with this car due to a sunroof leak so I chalked it up to my ongoing electrical problems until I saw the article today about other complaints from people having the same issue. The date listed below was the most recent incident but it has occurred many times.

- Centreville , MD, USA

My 2017 Honda Pilot does not want to start after the auto idle comes on. For example. When my Pilot comes to a stop and the auto idle system shut the engine off. The vehicle does not want to start when I take my foot off the brake. I thought it may have been my battery, it the problem still happened after I got a new one.

- Hudson , OH, USA

When at a stoplight, auto idle causes car to completely stall and shut down and won-??t restart unless car turned completely off and try to restart again. This has caused me to be placed in some dangerous situations where I have almost been rear ended from behind. Dealership says that it-??s the battery but from hearing from multiple people, this has not fixed the problem. It seems like it-??s something electrical with auto idle stop feature.

- Malvern, PA, USA

Many times over the past few years, my car has stalled out at a light or stop sign when the auto start-stop has been engaged. I noticed this happens more in the summer than winter. I have to disengage this function when driving, however, with no permanent way to shut off this feature, I often forget to shut it off every time I start the car. As a result, I frequently have to deal with the stalling. I have always been able to restart the car after a minute or so, but it's obviously a safety issue with cars stuck behind me. No warning lights come on before this happens, and I have no taken the car to a dealer or repair shop.

- Wayland, MA, USA

Auto start stop - car turns off and will not restart via auto start/stop system at red lights and stop signs. This is extremely dangerous in a heavy traffic situation. The system, if doesn-??t completely shut down is very delayed in responding to turn back on. I-??ve had this issue since I purchased the car. Dealership had no idea how to fix. They replaced the fuel injectors, thinking it would solve issue, which didn-??t help. I still own this car. 75,000 miles and this still happens.

- Latrobe, PA, USA

The car auto stop/start feature is failing to restart the engine when coming to a complete stop, sometimes while in a turn lane turning left with oncoming traffic.

- Kirkwood, MO, USA

Auto start/stop has caused the engine to shut off multiple times. One particular incident occurred at a stop light and only turned back on after several attempts using the ignition button.

- Renton, WA, USA

Auto on/off issue. Vehicle did not restart after auto shut off. Luckily not in a place where it caused a traffic problem. After a minute or so of being off the vehicle being completely off it started up again. After it sputtered a few more occasions, I have been turning off the feature manually each time I start the car now. Honda doesn-??t allow you to permanently turn it off. It has to be done each time.

- Mandeville , LA, USA

On numerous occasions when engine has automatically stopped, it has failed to restart to allow continued driving.

- Grand Rapids, MI, USA