general problems of the 2021 Honda Pilot - part 1

The vehicle has routinely had issues restarting from auto idle. When the vehicle turns off in traffic at a stop or stopped at a red light, then it will not restart and the vehicle will essentially be dead for several minutes and unable to be turned on or moved.

Engine started knocking and within a couple days my wife was left stranded. The vehicle went into limp mode with check engine light flashing, and would not accelerate. The vehicle stopped completely in the middle of the road and lost all power, which could’ve caused a major accident. Scheduled maintenance and oil changes has been kept up by me. I had the vehicle towed to a trusted shop and was informing that there were metal shavings in the oil filter. They inspected the top end of the engine and everything was normal. The only indication is that the problem is internal to the engine. There is a recall for Honda Pilots up to model year 2020 but I believe this issue is affecting vehicles up to 2022.

Auto idle stop activated at a stop light for the 2nd or 3rd time over a few years. Lifted foot off the break and stalled, the car went into park and I could not put it into neutral or drive. The odometer screen looked like it does when the engine is on. The battery light was on. I tried to turn down the radio and the volume didn't work. I tried pressing the ignition button to turn off the car entirely but it didn't work the first couple of tries. Once I was able to completely turn it off, it struggled to turn over when I tried to start the engine, which I've never had happen, but did turn over. Dealership wanted to charge $325 for a few hours of diagnostics which we declined.

The car engine autorestart causes all sorts of problems. We have repeatedly had the warning come on and the engine stop while at a light or paused in moving traffic. We have replaced the battery and other parts. The safety issue is that the car totally stops while in traffic and we have almost been hit multiple times as we try to restart the car. You have to put the car in park and restart the engine due to "compression issues" or something else. That has nothing to do with being a branded title and everything to do with a safety issue. The car just stops and won't autorestart. This has happened several times in the last week and then yesterday other warning lights came on resulting in the car then not accelerating beyond 25 mph initially and then 45 mph. Imagine this happening on a highway. This is really scary as it has happened on an interstate when traffic stopped and at a traffic light. I called Honda and they acknowledged it was safety issue but written up as a warranty extension so they refused to cover the repair of the vehicle. I am therefore escalating what I believe you are already investigating according to articles I have seen.

While driving vehicle downshifted with no warning and went into neutral. Was driving on a busy street. Was not able to shift back into drive. When car stops was not able to put it into park. No previous warning of anything wrong. No engine light, battery etc. Illuminated on the dash. Earlier that day did hear from time to time a tick or tap like noise that had not been heard before. Car had to be towed to auto shop. Upon inspection was told all components are in working order but the engine is not working and needs to be repaired. Given the engine only has 109,000 miles this was odd to them based on condition of the vehicle. There is a known issue with Honda engines similar to this vehicle and asked we check with Honda as to what could be done to diagnose further. This is very concerning as there was no warning. Driving on a busy street with unexpected downshift was almost rear ended.

The Honda Pilot completely lost power on my husband's way home from work in a snow storm. It would not start but it did yesterday. It sounds like clinking/clunking when started but stalls out if you try to put it in drive or reverse. It has a brand new battery. But otherwise it had to be towed and is now sitting. It didnt give any warning signs or lights on the dash until after it completely broke down. It has the engine light on when started. It has not be confirmed by a dealership as times are really rough right now with a new baby and not having the extra funds to have it looked at. And not to mention the closet dealership to look at it is almost an hour away. It seems that the rods/engine area are at fault.

After driving the vehicle for a few hours during a very cold day, as we got off an exit ramp. We then turned onto the next road in our travels and the check engine light went off and blinked. The vehicle went into limp mode. Pulled the vehicle over, turn the car off and then back on and everything worked just fine. Had an oil change already scheduled for 2 days later. Brought the vehicle in for it oil change and we told the Honda mechanic (dealership) what just happened. His response was: that is a common Honda problem. "you did what we would have told you to do. Turn the car off and then back on. When the engine compartment gets really warm when driving for long periods of time with the cold weather, something tells it to misfire and throws a check engine code. We tell people to do what you did and turn the car off and then back on". Meanwhile we had to go out of town again the following weekend. As soon as we got near our destination the same thing happened again. This time in an intersection! thankfully nobody was coming at the time of the limp mode to avoid a potential serious accident. I have put a lot of research into this and there are a lot of forums online that state this issue with no solution by Honda. I do not see how that is safe to have your car randomly throw a code and be forced to pull over immediately.

While my husband was taking our daughter to school on 01/05/2026 around 6:00am, a warning message flashed on the radio screen: "emissions system problem: the engine is not operating properly. Avoid high speeds and visit your dealer as soon as possible. If the indicator is blinking, stop in a safe place where there are no flammable objects. Turn off the engine for 10 minutes or more to let it cool. Restart the engine. If the indicator continues to blink, immediately have your vehicle checked by the dealer. " this was a safety at risk for my husband, my child, and the public - anyone driving near the vehicle. My husband pulled over and called me to let me know what was happening. He called aaa to have the car towed to the dealer. And called the dealer to let them know we were having the vehicle towed to them. They diagnosed it with "a unit in need of engine replacement. " the car was purchased as a certified pre-owned vehicle in 12/2021. It is a 2021 Honda Pilot and had a few hundred miles over 8000 at the time of purchase. The dealer is not taking responsibility as the miles 62,007 are just over the 60,000 mile powertrain warranty. And over the 5 years by weeks - 11/2020 to 01/05/2026. I was advised to contact american Honda. They basically told me I was not eligible for a goodwill assist as because: 1. ) I was not the original owner 2. )I did not have my service done at Honda. However, I did have documents of all of the service that had been done and sent those receipts to the Honda dealer. The engine failed. The dealer confirmed engine failure. The vehicle did stall out - at a stop light and took several minutes to start back up around October or November 2025. There were also some engine noises, including loud noises while accelerating, especially in sport mode.

While driving the check engine light started flashing and lost a lot of power. Pulled over and turned the car off. Turned the car back on and the light was gone and power seemed to be back. Trying to get home about 15 minutes later every light came on. Lane assist, check engine, blind spot, traction control, literally all warning lights. When these came on the car lost all power within a minute. Wouldn't turn over or even power on to use lights or the radio. Got the car towed to two separate garages both stating engine failure. Honda dealer provided documentation of a bearing failure which damaged cylinder 5.

Check engine light came on during normal highway driving with cylinder 2 misfire as the readout. The vehicle was brought to local Honda dealer for troubleshooting and maintenance. Dealer maintained vehicle on schedule with 96,000 miles on it. Initially, informed us that this was due to the air filter housing being improperly placed and low power from the battery. Resolved both and then informed us it was an issue with the connecting rod/crankshaft and the engine would need to be replaced. During most recent fluids service about 2 months prior, had raised concerns about an intermittent shifting/low rpm jump and was told it was just debris but no real issue.

Car does not want to start even though the batter and alternator are good (tested by tow truck company). Restarts fine once batter is disconnected and then reconnected again. This has now happened twice.

While stopped at an intersection, the car died, the transmission shifted to neutral automatically and the radio would not turn on. The agm battery was replaced approximately one year ago when a similar situation took place.

My vehicle has failed to restart several times with the auto idle start feature enabled while stopped at a stoplight. I was in a turning lane the first time it happened, so other vehicles had to make a left hand turn from a lane that was meant to go straight to get around me. The starter has not been inspected there weren't warning lamps prior to the auto start feature not working. When the car would not turn back on. I had to put the car in park, turn off "accesory mode", turn the car back on, and put the car back in drive. There have been several other instances the car has hesitated to restart, but it does.

When driving and wanting to accelerate at 65mph car just because limp, won’t go when accelerating for a few seconds, speed drops, then you press back on the accelerator and after a few times the car goes back to normal. So, you loose control of the accelerator for a few seconds and you cant go faster, it just freezes and speed drops. This has been happen g for awhile. I even called Honda corporate to advise them. It’s been happening for over 2 years. It comes and goes. We are starting to hear a clunk noise now.

While driving on the freeway at a slow speed due to two freeways merging, my Honda Pilot suddenly stopped/stalled. When I tried to restart the car by pressing the auto idle stop button to vehicle did not start. It took three times of pressing the auto idle stop button for the engine to restart. I am lucky that the traffic was going at a slow speed due to the merging of freeways so I was able to right away press my emergency signal lights on. I panicked and was scared for my safety and what could have happened to myself and others if the vehicle was running at a higher speed. This could have caused a major accident. Because this happened yesterday, I will be calling Honda to report the issue as well and have my vehicle inspected. My vehicle has had issues many times in the past with the auto idle stop button not starting, however, it has never happened while driving. The concerning part as well is that the vehicle did not give any kind of warning light or message.

Wife was driving car and it stalled when slowing down for a red light. No check engine light or dash warning notices. Car then displayed instructions to restart the car tried to restart 4 or 5 times. Finally started. We were lucky she was not on a highway driving at highway speeds.

While stopped at a traffic light the “auto stop” engine shut off feature engaged. When releasing the brake, the vehicle completely shut down, all dash lights came on as did the transmission mode lights. Upon trying to restart with the start button, prompts came up to place the vehicle in park. Trans select button did not work. Pressed the start button several more times. At one time all dash lights went off, except for the battery light. Brake pedal went all the way down to the floor. Opened the drivers door and then tried the start button one more time with the autostart button switched off after dash lights returned. Vehicle started after that. Blocked traffic for one traffic light sequence. Occurred on route 30 and schoolhouse road; new lenox IL on 10/25/25. Attempted to restart several times afterward and vehicle restarted. Trying to drive with “autostart” feature manually turned off from now on, if I remember. Scheduled checkup @ dealer 10/29/25. Honda of joliet vehicle has slightly over 40k miles.

Car is slow to start or doesn't start at all, particularly after frequent engine stops/starts or when engine has idled for a period of time. Battery has been replaced. Symptom comes and goes, but seems to get worse with frequent engine stops/starts (I. E. , driving to different locations with short stays at each, or with the automatic engine shut off).

Per the mechanic the rod bearing broke into the engine and caused sudden engine failure. I was on a highway when this occured, thankfully I was already in the right lane and right before an exit to which I took and secured the vehicle in a safe location. It was extremely dangerous location for this to occur and thankfully no one was right behind me. There were no warnings or messages prior to the incident. It was just routinely serviced within the past month. I heard a loud clank, the engine light started flashing, and the car started to slow down, there was knocking sounds in the engine. We had it towed to d and m service center then moved to gillman Honda service center. It was confirmed by two different shops, d and m service center at 1029 pat booker rd, universal city, TX 78148 and gillman Honda dealership at 16044 I-35 n selma, TX 78154 that the rod bearing cracked into the engine and metal shavings were identified in the engine oil.

After stopping at a traffic light or stop sign the car's auto-stop/restart feature has failed multiple times to restart the engine. This has left the car stalled at a light and needing to manually place the car in park, turn off the electrical, then attempt to restart the vehicle. The problem started about 4 months ago and has been starting to happen more frequently.

I have had two major problems with this car. At approximately 84,000 miles, the engine started making a very loud noise, regardless of speed. It was first diagnosed by an independent service center as a control arm bearing failure. I contacted Honda corporate and was told that it had to be diagnosed by a Honda dealer/service center. It was then diagnosed as a failure of the control arm bearing by a Honda dealer/service center. I was told the engine had to be replaced. Honda corporate offered a 50-50 split, leaving me with a bill of $8480. This is completely unfair and unjust for me to have to pay this for a manufacturer's defect. In the second incident shortly thereafter, I was on the highway in traffic when the automatic stop-start function failed, and the car stopped and did not re-start. I had cars backed up behind me, and it was a very unsafe situation. After turning the car off completely, I managed to restart it, and got off the highway. The problem continued afterwards, and I had to turn off the function manually in order to drive the car at all.

When stopped at a stop light the engine idle kills the engine and want start back up causing traffic backups. . . Have to go through process to setting back to park and trying to start which does not happen quickly leaving people behind you frustrated and honking. This needs to have an option to disable it if you don't want that function as it's very frustrating and dangerous. Please get Honda to fix issue. Thanks for your help.

After I had the softwear update! when idle at stoplight, auto idle feature kicked on. When light turn green and I pushed gas, car shut off entirely. This happened on multiple occasions. While waiting for an appointment to get this issue looked at, my car failed to start after being parked. It would not start after a jump from another vehicle. The tow truck driver was able to bet it jumped using a battery pack case. At the dealership, battery failed load test. Waiting to see if starter needs to be replaced and valves adjusted under extended warranty.

When stopped at a stop light the auto idle stop turned the car off. When we tried to go at the green light the car wouldn't move. The transmission shifted to neutral and was stuck. We couldn't put the car in park, we couldn't turn the car off, we couldn't put it in gear. We considered calling the police for help since we were stuck in an intersection. The car eventually turned off and we tried pushing all the buttons to do something it finally allowed us to turn the car 100% off and restart it. Then we could go.

The contact owns a 2021 Honda Pilot. The contact stated that while driving approximately 60 mph, the brake pedal was depressed, and the vehicle lost motive power. The contact heard an abnormal rattling sound coming from the engine compartment. The contact stated that the check engine warning light was illuminated. The contact continued driving to the destination, parked the vehicle, and checked under the hood. The contact checked the oil level, which was normal. The vehicle was towed to a dealer. The dealer diagnosed the vehicle and determined that a connecting rod had failed and damaged the engine. The contact was advised by the dealer that the engine oil level was very low. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to NHTSA campaign number: 23v751000 (engine and engine cooling); however, neither the VIN nor the model year was included. The manufacturer was informed of the failure. The failure mileage was approximately 72,000.

My 2021 Honda Pilot se fwd would not restart after the auto off/on turned my engine off at a stop light. Of course this happened at a busy intersection causing backup and an unsafe environment to get out and inspect the vehicle. The car had to be jump started by a kind individual.

The contact owns a 2021 Honda Pilot. The contact stated that while at a complete stop with the start/stop feature activated, the engine shut off while depressing the accelerator pedal. There was no warning light illuminated. After waiting for several minutes, the contact had to perform several procedures to restart the vehicle. The vehicle was initially taken to a dealer where a software update was performed; however, the failure returned weekly. Recently, the contact stated that upon restarting the vehicle after the failure, the vehicle began to jerk while accelerating, with an abnormal tapping sound coming from the engine. The vehicle was taken to a dealer and was diagnosed with a defective engine rod bearing. The contact was informed by the mechanic that the repair could not be warranted. The vehicle was not repaired. The manufacturer was notified of the failure but offered no assistance. The contact was referred to the NHTSA hotline to report the failure. The vehicle was not repaired. The failure mileage was approximately 15,000.

The auto idle stop (ais) feature on my 2021 Honda Pilot intermittently causes the engine to shut off at a stop and fail to restart. When this happens the vehicle remains completely unresponsive until I shift into park and manually restart the engine. This has happened multiple times in traffic and at intersections, creating a huge safety risk. I have already replaced the battery and had the latest software update installed at my local Honda dealership, but the issue persists. The problem is intermittent and difficult for the dealership to replicate. The auto idle stop issue is a known problem with Honda even extending a warranty coverage for the starter assembly and starter relays. The NHTSA number ea25004 addresses this yet the local dealership will only update the software and change the battery. They are failing to honor the second stage of the repair calling out specifically replacing the starter assembly, starter relays and adjusting the valves.

On multiple occasions, when sitting at a stop light and then attempting to drive as the light changes, the engine just shuts off as I take my foot off the brake. It then takes several attempts to get the car started.

Auto start/stop feature turned off the engine at a stoplight. When the light turned green and the brake pedal was released, the engine did not restart. There also appeared to be some sort of electrical malfunction since the start stop button would not turn off the ignition system in an attempt to reset the vehicle. This happened on a light regulated highway with a posted speed limit of 55 mph.

The contact owns a 2021 Honda Pilot. The contact stated that while temporarily stopped at a traffic light or a stop sign, the vehicle occasionally shifted into neutral, or the vehicle shut off unintendedly. There was no warning light illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The contact was informed that the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 68,000.

The contact owns a 2021 Honda Pilot. The contact stated while driving 70 mph, the vehicle made an abnormal loud rattling sound. The contact stated that her husband had noticed that the rattling sound persisted while the vehicle was parked. The contact stated that upon opening the hood to inspecting the vehicle, the contact noticed that the driver's side engine cooling fan had melted. The contact purchased a new engine cooling fan from o'reilly auto parts, and the vehicle was taken to four brothers auto services, where the engine cooling fan was replaced. The contact stated while driving on another occasion, the vehicle made an abnormal rattling sound. The contact stated that while idling in line at the airport arrival and pick-up level, the rattling sound became louder, and the vehicle made an abnormal popping sound. The contact stated that the engine started overheating. The contact pulled over to a safe location and inspected the under hood. The contact noticed that the passenger's side cooling fan had separated. The contact was able to drive to the destination. The vehicle was not diagnosed or repaired. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 86,000.

Vehicle when trying to start locks up, have had the battery alternator starter checked, changed the brake switch and still having issues with hard start to my 2021 Honda Pilot. When this happens all the lights come on. I push the idle/start switch when I do get it started so that it does shut off when I’m at a red light or stop sign. Because I’m afraid it will not start. Dealership could not find any issues with the vehicle, I’ve taken it to another mechanic and they could not. It has been put on diagnostics several times. I keep putting money into trying to find out what the issue is!!!.

This is another incident of the auto start/stop system failing to restart the engine after a stop in traffic.

The contact owns a 2021 Honda Pilot. The contact stated that while driving at various speeds, there was an abnormal ticking sound coming from the engine compartment. The vehicle was taken to the local dealer who diagnosed that the main engine bearings and connecting rods had failed. The contact was advised that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was not yet contacted. The failure mileage was 143,000.