2021 Honda Pilot: engine failure

Filed Oct 30, 2026 · Engine · PA

I am filing this complaint as a proactive safety measure regarding my 2021 Honda Pilot EX-L, equipped with the 3.5-liter V6 engine. I am deeply concerned about the severe manufacturing defect involving connecting rod bearing failures that cause sudden, catastrophic engine stalling and total loss of motive power while driving. This exact defect was the subject of the federal safety agency Recall Campaign 23V‑751. However, Honda arbitrarily restricted that recall to select 2016, 2018, and 2019 model years. As a current owner of a 2021 model year vehicle utilizing the exact same J-Series V6 engine architecture, my vehicle is suffering from the exact same underlying vulnerability but is entirely excluded from safety protections and repair remedies. A sudden engine failure at highway speeds poses an extreme and immediate safety risk to myself, my passengers, and other drivers on the road. I am submitting this to formally urge the federal safety agency to expand its current investigation into Honda’s V6 engine failures and force American Honda Motor Co. to expand Recall 23V‑751 to include the 2021 Honda Pilot fleet before a catastrophic failure occurs.

Filed Sep 30, 2026 · Electrical, Engine · 122,993 miles · TX

The contact owns a 2021 Honda Pilot. The contact stated that the vehicle was previously repaired under Technical Service Bulletin: 23-008 (Product Update: PGM-FI Idle Stop Software Update); however, the failure occurred after the product update. The contact stated that the vehicle hesitated to start after pressing the Engine Start button. The engine failed restart after coming to a complete stop and releasing the brake pedal and the Auto Idle Stop feature engaged. The battery warning light was illuminated, and the messages "Battery Failure" and "Press Brakes - Put the Car in Park and Restart" were displayed. The contact deactivated the Auto Idle Stop feature. The vehicle was taken to the dealer, who determined that the starter needed to be replaced. The failure mileage was 122,993.

Filed Sep 29, 2026 · Engine, Fuel system · VA

While driving with my family in my 2021 Pilot on the interstate at 75mph, I felt a shudder while in traffic. Fortunately, I signaled to get over and cars around me responded, because the check engine light flashed on and off and the car shut off. We had enough time to roll to the side of the interstate safely because drivers around me were aware and considerate. The car would not restart so we had to tow it. The Pilot has been evaluated by an independent mechanic who says that a failure in the high pressure fuel pump caused oil to dilute gasoline. A full engine replacement is required. There was no prior warning of this issue. American Honda has been contacted for potential support. Early stage of that, but dealing with them has, so far, been great.

Filed Sep 13, 2026 · Engine · SC

Our pilot is experiencing similar issues found online with catastrophic engine failure due to a misfire caused by a knocking rod. Honda so far has not responded to our claim despite it being a known issue around the same time ours was manufactured.

Filed Aug 24, 2026 · Engine · CA

Was driving vehicle and all of a sudden engine light pops up with no driver codes and the left side of engine starts knocking. I pull into the closest shop. They test a vehicle misfire in cylinder 5 and propose vehicle gets towed to dealership to look at codes. I tow vehicle to dealership for them to tell me rod bearings, crankshaft are bad and need a new engine. Engine was 99k and well maintained with every service record included. I asked about Honda goodwill which they denied me due to vehicle not getting serviced at Honda for oil changes. The rod bearings were recalled on previous Honda models and there is currently an open investigation on 2021 models but no official recall.

Filed Aug 17, 2026 · Engine · VA

I am reporting a catastrophic engine failure involving my 2021 Honda Pilot equipped with the 3.5L V6 engine. The vehicle has approximately 77,000 miles. The vehicle developed an engine rattling noise followed by complete engine failure and loss of motive power. I had the vehicle transported to an authorized Honda dealership for diagnosis. Following inspection and engine teardown, the Honda dealer documented a hole in the front side of the short block, a large amount of metal debris in the oil pan, and the cylinder #3 connecting rod broken in half. The dealer concluded that the engine experienced catastrophic internal failure with widespread metal contamination throughout the lower and upper engine components. Due to the extent of the damage, the Honda dealer recommended replacement of the short-block assembly, both complete cylinder heads, fuel injectors and associated components. The estimated engine repair alone is approximately $20,275. I am concerned that this failure may represent a safety-related engine defect because catastrophic connecting-rod failure can result in sudden loss of motive power. Honda has previously recalled certain vehicles equipped with 3.5L V6 engines for connecting-rod-bearing failures that can cause engine damage, engine failure and loss of motive power. My 2021 Pilot is not currently included in that recall population. I am not asserting that the cause of my engine failure has been established as identical to the existing recall defect. However, given the catastrophic connecting-rod failure documented by an authorized Honda dealer, I am requesting that the federal safety agency review this incident and determine whether it may be related to the broader pattern of connecting-rod/engine failures involving Honda 3.5L V6 engines, including vehicles outside the existing recall population.

Filed Jul 24, 2026 · Electrical, Engine · NY

My current 2021 Honda Pilot (purchased used May 2024) is stalling out in live traffic - the most recent on XXX creating a massive safety hazard. (In addition, the engine is making the same exact clicking noise that the 2015 Honda VIN:[XXX] made right before the engine catastrophically seized on my way to work. That 2015 Honda Pilot seized due to a defective Variable Cynlinder Management (VCM) system. This defect was covered by a court-ordered federal class-action settlement warranty extension (Alex [XXX] v. American Honda, Case No. XXX), extending coverage to 10 years/150,000 miles. While that vehicle was fully within this window - Honda of [XXX] wrongfully denied this legal warranty.) The CURRENT 2021 Honda Pilot (Purchased Used) VIN: [XXX] suffers from intermittent engine stalling in live traffic. The dealership has failed to resolve this issue across three separate visits, while exploiting the emergencies. The timeline of failed repairs includes: 2/14/25: The vehicle stalled in live traffic. The dealership charged me $420.48 for diagnostics and a failed repair. 8/13/25: The dashboard lit up and the vehicle suffered engine failure leaving my family stranded for 9 hours waiting for Honda Assist. It was brought to the Honda of New Rochelle service center where they exploited this emergency to charge me an exorbitant $1,300.00 out of pocket for unrelated work financed via Sunbit loan. 9/24/2025: The vehicle stalled in live traffic for a third time. The dealership charged me an additional $572.00 for another failed repair. They reguse to give me the RO's and the car has 29 active codes including U3006-16 (ECU Power Source Failure), proving a severe electrical or fuel delivery hazard remains completely unresolved. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jun 11, 2026 · Engine · MD

In November 2025, my 2021 Honda Pilot started experiencing stalling while driving, hesitation when accelerating, and sudden power loss while idling. I took the vehicle to my local Homda dealership and each time they dismissed the problem, indicating that they could not find any issues. On 4/24/26, the vehicle experienced sudden engine failure in the middle of moving traffic. There were no warning lights or dashboard messages leading to the issue. The vehicle was towed to the local Honda dealership, where they kept the vehicle for a month and charged over $20,000 for a repair (not replacement). Ten (10) days after picking up the vehicle from the dealership, the engine locked and seized again on 6/9/26 in the middle of traffic and nearly caused a serious accident with 3 other vehicles.

Filed Jun 7, 2026 · Engine · IN

We had the engine serviced for recall on stop start issue on 12/4/25. On May 15, 2026 the engine failed. The dashboard came on with every warning light and a mechanic said the engine was knocking and had to be replaced. Honda denied any issue and said the timing belt had to be broken. The mechanic confirmed no issue with timing belt and said you can’t start the engine if the timing belt was broken. The mechanic said the engine was knocking and had to be replaced because the car could no longer be driven safely.

Filed May 22, 2026 · Engine · NC

My wife was driving our 2021 Honda Pilot with 102,000 on the interstate when the check engine light came on and the engine began to lose power. She was fearful of being hit by other traffic due to engine dying in middle of mutiple lanes of traffic. The engine began to have a knocking sound. We shut off engine and had it towed to Southpoint Honda in Durham NC. We were told it has a rod knock, the engine failed. It is about to seize and we need to replace the engine.

Filed May 18, 2026 · Engine · CA

The engine shut off as I was leaving a stop sign and stopped working as I was driving the vehicle.The car shut off and I had a very limited amount of time to pull off to the side which I was halfway able to do and was halfway on one lane and halfway on the shoulder. During this time the car had switched to neutral but since the problem had not occurred before and there was no engine lights on, I tried to turn the car back on and was left unable to shift to neutral again and was stranded in the lane with children in the vehicle. We had to have it towed to the dealer. They confirmed it was an engine failure. Our car is around 5 years old and has been well maintained and is only around 60000 miles or less.

Filed Jan 20, 2026 · Engine, Transmission · FL

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.