2020 HONDA ACCORD Engine Problems

My car shut off on the road. I tried to accelerate but all my lights on the dashboard came on. I wasn’t able to accelerate more than 20mph. I was about to make it back home. Today I tried to take it out on a test drive, it’s drivable but I was not able to accelerate. Every time I pressed the gas, my car would stall. This is the 4th time it happened.

Honda accords have a 1.5 L engine, which all have an issue with the head gaskets either overheating or mixing coolant into the cylinders. They’re all doing it eventually because there is a design flaw Honda doesn’t want to honor it and the car will just stop on you on the freeway because coolant touches the spark plugs. Honda is denying the issue when there’s a whole Facebook page and Internet, page of people saying the same thing they’re quoting and unreasonable amount to fix it almost the cost of the car. It is a very dangerous safety issue and eventually someone could die and needs to make a recall immediately before that happens. Most shops don’t even want to touch the car because it’s a safety issue. If we can get this past ASAP for anybody who has that car or anybody that’s gonna buy that car the safety...

I have constantly had to replace spark plugs within the last year — all lights are on dashboard. Finally took it and got a P0372 code, rough idling and misfiring, and stalling. Car once cut off on me while driving. Took it to the Honda dealership and it is indeed my fuel injectors and gasket. I have tried to get in touch about a possible recall but the Honda Manufacturer are failing to release a recall. With all lights on dashboard, NO features of the car can be used (cruise control, road departure, lane keep assist, collision mitigation, hill start assist, traction control, brake hold, and tpms) I’m looking forward to a recall coming as soon as possible. I have done my research and thousands of people are having the SAME issue, it is frustrating especially with the cost of work having to be done. Nobody should have to purchase...

ENGINE,Coolant system VEHICLE WAS CUTTING OFF IN THE MIDDLE OF DRIVING SHAKING AND JERKING

I would like to report a known issue with the Honda Accord Sport 1.5t. My head gasket went out Aug. 2024 with about 100,000 miles on the dashboard. The cost to change it was about $4100. My Turbo Charger is now out Dec. 2025, and they are quoting me about $2100 before taxes. The dealership did advise that there is a known issue with the head gasket going out prematurely due to a default with the engine. They also advised that the turbo charger normally goes out after the head gasket is replaced. Please work on having the engine recalled. This is awful. After researching this issue, I see thousands of others are having the same issue. Best regards, Yvette J.

DRIVING ON THE FREEWAY AND THE CAR STARTED TO LOSE POWER AND DE-CELLERATE, EVENTUALLY STOPPING. AFTER LEAVING IT OVERNIGHT, I RETURNED AND THE CAR STARTED. I SLOWLY DROVE IT TO A DEALERSHIP WITHIN 3 MILES. THE DEALER SAID THEY COULD NOT REPLICATE THE ISSUE. THEY DID FIND A "LABOR DIAG FOUND IN HISTORY CODE P0304" .

I had just left my job in Albany and was headed to the Latham area, while merging into traffic on I-90 West my 2020 Honda Accord EX-L started to rattle and slow down, numerous lights illuminated simultaneously on my dashboard. I immediately pulled off the north shoulder and restarted my vehicle to no avail, the dashboard lights were still lit and my vehicles speed and steering were compromised. My safety was put at risk due to the immediate issues as previously described while in heavy traffic, I could have easily been involved in an accident due this issue. The system Keeler Honda advised me that had failed was allegedly the head gasket leaking coolant into the engine by means of cylinder four. I was later informed by Keeler that this is a common issue with the accord 1.5 L turbo engines. The problem has been verified by Keeler Honda. There...

Blown head gasket at 98.5K miles.

The car when pressing the accelerator will decelerate and go limp and won’t move. This is happening to a lot of Honda accords. This will cause an serious accident.

Was driving on the freeway approximately 70 mph on saturday October 4th, When car goes into limp mode and throws a engine light on, leaving me stranded on the freeway. Another occurrence one week later on Saturday October 11th when car went into limp mode again driving around 35 mph in the city. Both cases I turned the car off and on and returned back to normal, come to find out with the dealer it is a blown head gasket and their is coolant leaking into cylinder 3. A BLOWN HEADGASKET!!!!! Everyone is having these problems

The contact owns a 2020 Honda Accord. The contact stated that while driving approximately 65 MPH, the vehicle lost motive power. The contact stated that several unknown warning lights were illuminated on the instrument cluster. The contact stated that the vehicle was vibrating and jerking while the accelerator pedal was depressed. The contact was able to pull over when the vehicle stalled. The contact was able to restart the vehicle, but the vehicle was sputtering and vibrating as if the vehicle was going to stall. The contact pumped the accelerator pedal, and the vehicle responded as needed. The contact stated that the vehicle was unable to exceed 15 MPH. The contact was able to drive the vehicle to the residence. The contact had not taken the vehicle to a local dealer or independent mechanic to be diagnosed or repaired. The manufacturer was not informed of the failure. The failure mileage...

The contact owns a 2020 Honda Accord. The contact stated that while driving approximately 30 MPH, several unknown warning lights illuminated. The contact pulled over and turned off the vehicle to reset the instrument cluster; however, the warning lights remained illuminated. The contact checked under the hood to check if the battery terminal was loose, but found no issues. The contact had taken the vehicle to an independent mechanic who replaced the 12-Volt battery; however, the warning lights returned. Additionally, the contact stated that while stopped at a traffic light or while depressing the brake pedal, the vehicle was vibrating. The contact had not taken the vehicle to a local dealer or to an independent mechanic to be diagnosed or repaired. The contact had stopped driving the vehicle. The contact stated that prior to the instrument cluster failure, the low-pressure tire monitor warning light was intermittently illuminated. The tire pressures...

Emissions system problems see dealer light came on took to autozone reading stated turbocharger but light went off. Later all warning lights came on so took to dealership they advised turbocharger as well. After for weeks no light no longer on. More recently emissions system problems light started coming on and off, but this time it will go days without being on then will turn on or it can be on when I first start driving then later it's no longer on. I also had issue with all lights coming on again went to autozone got brake fluid since it was low and they went off. I feel it maybe issue of faulty sensory due to fact car drives fine and light doesn't stay on consistently. I also see Honda currently has proposed class actions for defected turbochargers so wonder if that issue with my car.

When I turned my car on after work every warning light on the dashboard was on. A few of the warning messages read: Collision Mitigation Braking System Problem, Adaptive Cruise Control System Problem, Hill Start Assist Problem, Electric Power Steering System Problem. I first took it to Oreilly's to have the diagnostics ran. They told me the ignition coils needed to be replaces. We replaced the ignition coils and the spark plugs. The lights stayed off for about 3-4 days and then the same thing happened again. I took it to the dealership to be checked out and they told me that the head gasket had failed and coolant was leaking into the cylinder and causing the engine to overheat.

Car has only 73k miles , fails to accelerate unless it’s left to run for an hr . All lights on dash . Replaced spark plugs, coils and battery to no avail and Took to get diagnosed and was told head gasket and quoted 7k to fix. When car does drive it immediately accelerates to 40 on dash which could cause collision leaving me to feel unsafe to drive .

When the fuel tank was at 1/4 full/empty, the car started stalling on the highway. We were able to go to a gas station and filled the gas tank. The problem was gone. We went to our mechanic but he could not find the problem. A few day's later the gas tank was 1/2 full/empty and the same problem happened. We filled it up and the problem was gone. We went back to our shop and the mechanic did a diag but didn't find any fault codes. He advised to go to the Honda dealer to take a look at it.

My car displays every single light on the dashboard it’s been happening for about a year. It starts to shake when I turn it on sometimes it does it sometimes it doesn’t but now it’s a reoccurring issue and has been happening for the past six months we’ve brought it to everywhere. The engine is stalling and won’t go over 20 mph. I’m lucky if it gets to 40 . There’s a recall on my car, but my van is not covered underneath it. Looking to see if this can be looked into since so many people I have spoken to says that that’s what they’re experiencing until they got the recall fixed

Malfunctioning fuel injectors causing misfires stem from a known issue with faulty fuel injectors; a problem widely reported across multiple Honda models equipped with the 1.5-liter turbocharged direct injection engine. Notably, the Honda CR-V (2019–2023), Civic (2019–2022), and Accord (2018–2022) have all been consistently linked to fuel injector failures. The most serious safety concern associated with this defect is the potential for sudden throttle changes, which can trigger the check engine light, cause the engine to lose drive power, hesitate, or even stall—all of which significantly increase the risk of a crash or injury.

Subject: Request for Recall Due to Persistent Dashboard Warnings and Engine Malfunction Dear [Manufacturer Honda] / NHTSA, I am writing to formally report a serious issue with my vehicle. All of the warning lights on the dashboard remain illuminated and do not turn off. Additionally, the vehicle occasionally becomes undriveable, unable to accelerate beyond 5 miles per hour. I was informed that the problem is related to the engine. I brought the car to a dealership for inspection, but they refused to repair the issue because the vehicle had just passed 40,000 miles. They stated that the warranty no longer covers the repair, despite the severity of the malfunction. After doing research and speaking with other vehicle owners, I have learned that this issue is not unique to my car. It appears to be a widespread problem affecting many vehicles of the same make and model across the United States....

The turbo apparently went out without any warning as I was pulling onto the highway from work 5/22/25. I was almost creamed by the cars flying down the road. My vehicle is very well maintained , no issues ever until this. It upsets me rightly to find that this is not only been reported to you all, but there are people who are having to do class action lawsuit to try to get Honda to be held accountable at the very least since they refuse to recall this engine. There are thousands of people out here I have engine installing. Anytime an engine saws there is a danger whether I actually had an accident or made a report or not. And for the manufacturer to know that they have this issue and do nothing about it blows my mind. We can not allow car makers to put engines and cars...

Subject: Turbocharger Underboost – Safety Concern on 2020 Honda Accord EX-L I am reporting a serious safety issue with the turbocharger system on my 2020 Honda Accord EX-L with the 1.5L turbocharged engine. The vehicle has repeatedly triggered Diagnostic Trouble Code P0299 (Turbocharger Underboost), indicating the turbocharger is failing to generate sufficient boost. As a result, the vehicle suffers from sudden loss of power, especially during acceleration and highway merging. This power loss occurs without warning and severely impacts my ability to drive safely in traffic, increasing the risk of accidents. There are currently no recalls or manufacturer advisories addressing this issue, despite numerous online reports from other Honda owners with the same engine and problem. This suggests a possible design flaw or premature component failure in the turbocharging system. Given the frequency of this issue and its impact on vehicle safety, I am requesting that NHTSA investigate this matter...

Car reached 113,000 miles and started having misfires in cylinders 1&2. After being told it needed new coil packs and spark plugs, and replacing those it is still misfiring. Paid for diagnostic again and was told cylinder 1&2 were wet and most likely it was the head gasket failing.

•Alleged Defect:
The defect is described as the engines' inability to handle the increased heat and compression of a turbocharger, causing coolant leakage and damage to the engine's head gasket. 




Mechanic said there was a fault in the hi pressure fuel injectors that’s causing the engine to run rich

This engine has been so poorly designed it leaks coolant Into the engine system. I am extremely frustrated and disgusted with the dealership and Honda for knowing these engines are defective yet still producing/selling them. We pay hard earned money for something so unreliable it’s actually insane. I don’t want to be nasty about it but someone needs to say something.

Nothing happened, I just want to know if my engine is a 1.5 or 2.0

I was headed to work going 40-45mph, as I was going I felt my car shift out and my speed dropped to 25 automatically. My engine light popped up FLASHING. I could not accelerate my car above 25, leaving me late for work, I had to turn my hazard lights on so people could know something was wrong but I could have been hit from behind. My car did not give me any notifications from my car on the issue it could be having like usually, (oil change, tire rotation, spark plugs, etc.) After cranking my car again a few hours later, I noticed a difference in how it is cranking up. Honda dealership is wanting $150 to even look at the car for a possibility of repairs. I need to know exactly why it is happening and why a recall is not open if I have spoken to multiple...

The 1st thing that happened was that all the components of ADAS stopped working in the spring of 2023. All the warning lights turned on in the middle of my commute home from work. It was very intimidating because I thought the car was going to stall in the middle of the highway, so pulled over to the side. I contacted Honda dealership and they were going to charge me to diagnose the problem. So I went to Autozone and it diagnosed my problem as "System too rich (Bank 1)". I went to an independent mechanic and they had the same warning on their machine as Autozone. They tried replacing an oxygen sensor, that did not work in getting rid of the problem with all my warning lights turning on. Again the ADAS component lights turned on and the system did not work. The next thing they did was replace...

Rough start then temperature fluctuates. Coolant is disappearing cause a head gasket problem. This has been known for the 2018-2020 yrs Accord.

Everything malfunctioned lights flickering and glitching all over the dashboard, fuel rail pressure too low, in tank fuel pump has internal failure.

During medium acceleration the vehicle engine lost power and all the instrument panel warnings went off. Dealership said a blow head gasket. There are many threads online saying that there needs to be something done because the Honda 1.5 turbo motors are blowing head gaskets prematurely under 100k miles. Mine 2020 Accord has 108k and has been driven with care as I’m a middle aged male commuting to and from work with the car. Some sort of investigation needs to be done to show there is either a design flaw or a gasket flaw.

My car is less than 4 years old and only has 6623 miles. Already its leaking refringent from the condenser and Discharge Hose. Force Honda to fix the problem and reimburse car owners. Invoice cost is $10066.62 + tax

I am an 81 years old widow and am very afraid to drive my new 2020 Honda Accord. I am regularly experiencing an ongoing intermittent issue where my car stalls for no apparent reason. I've taken it to the Honda garage where I purchased it two times and no one seems to be able to satisfactorily address this concern. The first time I reported it to the shop (4/24/24), the technician didn't even pull it into the garage to investigate it. I assumed they would hook it to some diagnostic device and see if the cars computer would have some record of the fault. Instead, he jumped in, pushed some buttons relating to the lane keeping system (?) and claimed that would fix it, but it did not. I continue to experience the same problems. One example is when I take my car to the car wash, it stalls at...

The contact owns a 2020 Honda Accord. The contact stated while driving 25 MPH, the vehicle began to shudder. The contact stated that several unknown warning lights were illuminated. The message to see the dealer was displayed. The vehicle was taken to the local dealer, where it was diagnosed that the low-pressure fuel pump and a high-pressure fuel pump needed to be replaced. The vehicle was repaired. The manufacturer was contacted, and the contact was informed there was no recall coverage on the vehicle. The contact stated that the failure was like NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline). The failure mileage was approximately 62,000.

Bought the car back in 2020 after less than a year electrical problems caused the car to malfunction got it fixed and constantly after that more electrical problems changed the sensors and the car still continued to lose power. While driving on the highway the car completely lost strength and would not let me drive more than 25mph check engine light started blinking as well as all the lights LKAS ACC TPMS and more.

For some reason the vehicle shift gets stuck in the park position. After continuous tries, it eventually goes into gear. Apparently, there is something wrong with the transmission and should be covered by warranty.

Car stalled on me on the highway

Lights all came on at once while traveling and highway. Car jerking. Cam Shaft Sensor Malfunction Braking Malfunction Adaptive Cruise Control Auto High Beam Problem Road Departure Mitigation Emissions System Problem Avoid High Acceleration

The contact owns a 2020 Honda Accord. The contact stated while driving 40 MPH, the vehicle inadvertently decelerated without warning. The contact stated that after several minutes the vehicle started to operate as needed. On another occasion, while driving 35 MPH, the brake assist activated independently causing the vehicle to brake suddenly. On another occasion, while attempting to start the vehicle, the vehicle failed to start-up after several attempts. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer for diagnostic testing. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was 62,000.

I brought my vehicle into the dealer for a recall software problem and to fix an oil leak coming from the valve cover. They replace the valve cover gasket and performed the software recall. As of now it still shows that my vehicle still needs the software recall. One week later after the oil leak repair, a massive oil leak formed at the valve cover causing oil to cover my engine bay and exhaust causing a burning smell and possible fire risk. Every weekend we drive out of state to tournaments and I was unaware of the leak. I brought it back to the dealer and they said it was residual oil from the previous repair. I was skeptical but believed them. One week later the same massive oil leak and problem occurred in my engine bay and driveway. Having no confidence in the dealer and being an ASE certified...

The contact owns a 2020 Honda Accord. The contact stated while entering a parking lot at 10 MPH, he started to hear an abnormal noise. The contact stated no warning light was illuminated. The contact continued driving the vehicle but shortly after the drive shaft fractured. The vehicle was not drivable. The contact towed the vehicle to the local dealer, where it was diagnosed with needing the driveshaft to be replaced. The vehicle was repaired. The manufacturer had not been informed of the failure. The failure mileage was approximately 39,000.

While travelling at highway speeds, rainy weather, the engine completely shut down. Engine light illuminated. Did not want to pull over on shoulder so glided to exit ramp. Turned vehicle off and then restarted with no issues. Drove approximately 150 miles to nearest Honda dealer. They inspected and said 'no diagnostic code' was registered. I took to my dealer and they tried to recreate but could not. They also found no codes. Had my family in car when full power loss. Very dangerous situation. I immediately activated the flashers. Drove in the right lane of interstate highway rest of way to dealer and home.

The contact owns a 2020 Honda Accord. The contact stated while driving 70 mph while attempting to pass another vehicle, the check engine warning light was illuminated and the vehicle went into limp mode. The contact was able to exit the highway and park safely. The vehicle was not drivable. The contact towed the vehicle to the local dealer where it was diagnosed with a misfire on cylinders 1 and 4. The local dealer reset the code. The vehicle was repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 13,762.

I LEASED MY VEHICLE A YEAR AGO, I HAD ELECTRICAL ISSUES WITH MY OLD CAR SO I WANTED A BRAND NEW CAR THAT WAS RELIABLE AND SAFE FOR ME AND MY CHILDREN. IN THE FIRST MONTHS THE CAR WAS FINE BUT AFTER ABOUT 4 MONTHS THE CAR WOULD SMOKE FROM THE EXHAUST PIPES RANDOMLY. I TOOK IT FOR MAINTENANCE AS THE CAR SYSTEM DIRECTED BUT THE REPAIR SHOP NEVER SAID THERE WAS ANYTHING WRONG WITH THE EXHAUST SYSTEM. A MONTH OR SO PAST AND ONE DAY I GOT IN THE CAR AND ALL THE LIGHTS ON THE DASH BOARD WERE IN. I WAS SO FREAKED OUT BECAUSE IT WAS A NEW CAR AND NO WARNING LIGHTS SHOULD OF BEEN ON. I TOOK IT TO HONDA REPAIR SERVICES AND THEY FOUND OUT THAT A MOUSE WENT IN MY ENGINE AND CHEWED SOME OF THE ELECTRICAL WIRES. THE COST OF THE REPAIR...

MY CAR WAS AT THE MECHANIC'SHOP AROUND THE CORNER. IT'S AT HONDA OF SERRAMONTE IN COLMA OF DALY CITY. THE CAR WAS AT THE SHOP SINCE 01/28/2021. THERE IS A RECALL ON 2018-2021 HONDA ACCORD. PLEASE GIVE ME A CALL. [XXX]. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

HAD OIL CHANGE SERVICE MANAGER SAID TECH CHANGING OIL NOTICED A STRONG SMELL OF GASOLINE IN OIL . MANAGER SAID YOU HAVE GAS IN YOUR OIL.

DRIVING ON I95 NEAR LUMBERTON NC AT 78MPH IN ECON MODE WITH CRUISE ON, WENT TO PASS VEHICLE AFTER CRUISE SLOWED ME DOWN, STEPPED ON GAS AND RESPONSE FELT DIFFERENT, REALIZED I WAS SLOWING DOWN WHILE STEPPING ON THE GAS. NOTICED CEL LIGHT AND CONTINUED TO SLOW DOWN. I THOUGHT CAR WAS DRIFTING BUT THE RPMS STILL SHOWED ENGINE ON. GOT TO SAFETY APRON AND REALIZED CAR WAS IN LIMP MODE. MANAGED TO GET TO EXIT RAMP. SITTING ON RAMP NOTICED THAT THE ENGINE, WHEN YOU TAPPED THE GAS PEDAL, WAS ROUGH BUT SEEMED TO IDLE OK. TOWED TO NEARBY DEALER. THEY SAID IT HAD A P0300 HISTORY CODE BUT NO CURRENT CODE. THEY CLEARED IT, TEST DROVE AND GAVE IT BACK TO ME. CONTINUED BY TRIP TO VIRGINIA WITH NO PROBLEMS. CAR HAD 7251 MILES. NO PROBLEMS BEFORE THIS. PREVIOUS NIGHT (31ST) WE GASSED UP AND DROVE AN HOUR+...

2020 ACCORD 2.0T SPORT 10,600 MILES I WAS TRAVELING ACROSS THE STATE WITH PERIODS OF LIGHT AND HEAVY RAIN. ABOUT HALFWAY INTO MY ~280 MILE TRIP I STOPPED FOR A RED LIGHT. WHEN ACCELERATING FROM THE LIGHT, MY CAR LOST POWER AND THE ACCELERATOR DID NOT WORK. I COASTED TO THE SIDE OF THE ROAD AND NOTICED THE CHECK ENGINE LIGHT BLINKING, WITH NO OTHER WARNING MESSAGES. I SHUT THE CAR OFF AND RESTARTED TO FIND NO ENGINE LIGHT OR WARNING. I WAS IN THE MIDDLE OF NOWHERE LATE IN THE EVENING SO I CONTINUED TO THE DESTINATION. WITH APPROXIMATELY 20 MILES TO GO, I ATTEMPTED TO ACCELERATE AROUND A SLOWER MOVING VEHICLE AND WAS MET WITH PREVIOUS PROBLEMS, AS WELL AS MANY WARNING MESSAGES. TURNING OFF AND RESTARTING THE CAR ENABLED ME TO DRIVE AGAIN, BUT THE WARNING MESSAGES REMAIN. BOTH TIMES THIS OCCURRED IT WAS RAINING. BOTH TIMES...

THE CAR RATTLES ON THE REAR WHERE THE EXHAUST END WHEN I TURN IT OFF. IT USED TO NOT DO THAT RATTLING BEFORE. THE CAR VIBRATES WHEN THE CAR IS COMING TO A STOP AND THEN CONTINUES WHEN IDLING. IT FEELS LIKE I AM SITTING AT A VIBRATING CHAIR. THE ENGINE WORKS VERY ROUGH WHEN IDLING.

FROM OCT 10 TO OCT 14, I PARKED MY CAR AT OFF AIRPORT PARKING LOT FOR 5DAYS. WHEN I CAME BACK, MY CAR DIDN'T START. MY CAR WAS TOWED TO THE CLOSEST HONDA DEALERSHIP. I GOT THE INSPECTION REPORT FROM THE DEALERSHIP STATING THAT THE REASON WHY MY CAR DIDN'T START IS DUE TO BAD GAS. I WENT TO THE GAS STATION, WHERE I PUMPED MY GAS LAST TIME BEFORE I FLEW OUT OF ATL, TO CHECK WITH THEM. THEY PROVIDED ME A COPY OF THE SYSTEM STATUS REPORT OF 10/9/20 SHOWING THAT THERE WERE NO ISSUES. SO I WENT BACK TO THE DEALERSHIP AND THEY TOLD ME THEY HAVE CONFIRMED THAT #3 CYLINDER IS FULL OF WATER; THEY SAID THEY COULD GET A FUEL SAMPLE ONCE I AUTHORIZED THEM TO WORK ON THE FUEL TANK REMOVAL AND CLEANING. ONCE THEY PROCEEDED, THEY STATED THEY FOCUSED ON CLEANING THE SPARK...