2020 Honda Accord Complaint Log

All lights have popped up on dash. Stayed on for 2 days back in july and then went off. Came back on 2 days ago (oct 5th) and have not went off yet. LKA, cruise control, parking brake light, TPMS, traction control, and engine light.

I was driving down US Route 42 on 10/4/25 at 1:10 AM and my car phantom break itself while I was doing 60 miles an hour on the highway.

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

Good Morning, I have new Honda Accord 2020 which always been taken care of regular services and oil changes etc. This morning I tried to start my car going to work but suddenly all brake related warning signs came off. My card still not starting the engine. I researched online and found out many people who have same Honda facing same issues. So I figured it's better to be reported before someone gets really hurts while on road. Please find attached pictured with this incident report please.

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 was approximately 67,000.

Check engine, tire pressure, battery and every other light on the dashboard

On September 2, 2025 at 1004-1005 EST, my car phantom braked, when there was nothing in front of me and this time instead of just flashing brake on the dashboard, it actually breaks itself and threw me into the steering wheel thank God my seatbelt caught me, but it really choked me up. This has happened quite a number of times before, but this is the first time that it breaked when I actually stepped on the brake pedal it break itself myself also. The component is the automatic breaking for the collision impact that keeps phantom breaking on me. It has never been looked at by a dealer or anyone otherwise. The lamp that came on was the BREAK lamp where the rpm are at.

There has been multiple times that when I am driving on the highway doing 60 miles an hour, the dashboard will light up to BRAKE the car when there is nothing in front of the car, no other car no trash nothing. It has done this on slower roads where the speed limit is 40 mph and under but it will actually brake the car and I have had cars behind me when this happens. This keeps happening multiply times a week.

See attached document for complaint.

Electrical drain in system causing premature battery failure and electrical misfiring that causes the car to shut off and flashing a brake warning message to contact dealer and once this occurs car won’t start until Honda link and hands free pairing are reconnected. Issue is if the misfiring drains the battery, driver is not able to reconnect the cars apps and pair the Bluetooth, therefore, car is not will be immobile until battery is recharged.

The contact owns a 2020 Honda Accord. The contact received notification of NHTSA Campaign Number: 24V064000 (Air Bags ); however, the part to do the recall repair was unavailable. The vehicle was taken to the dealer, but was not diagnosed or repaired. The dealer confirmed that parts were not yet available for the recall repair. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure.

The contact owns a 2020 Honda Accord. The contact stated while driving 30 MPH, the vehicle started to vibrate and shake abnormally. The contact stated that the vehicle stalled. There was no warning light illuminated. The contact was able to stop however, after several attempts the contact was unable to restart the vehicle. The contact stated that after each attempt to restart the vehicle, there were several unknown warning lights illuminated on the instrument cluster. The contact had the vehicle towed to the residence. The contact had a mobile mechanic diagnose the vehicle. The mechanic retrieved a fault that the fuel pump had failed and needed to be replaced. The contact was advised by the mechanic that there was a recall associated to the year and model for the fuel pump. The contact researched online and related the failure to NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); however, after calling the dealer, the contact was informed that the VIN was not included in the recall. The vehicle was not repaired. The manufacturer was informed of the failure. The failure mileage was approximately 66,000.

The Honda Collision Mitigation Braking System (CMBS) will randomly activate without any obstacles in front of the vehicle. Consequently, increasing the risk for car accidents, loss of control, and bodily harm. The car has not been inspected by a dealer or certified mechanic for this problem. However, the vehicle is available for inspection and repair as needed. While the incident occurs, the CMBS warning system will flash ‘Brake’.

When driving my car it will phantom break when there is nothing in front of it going down the highway 5060 miles an hour and it’s done at numerous times. I have not been in an accident yet, but it’s something that keeps occurring on my car.

On July 30, 2025, my Honda’s Collision Mitigation Braking System (CMBS) randomly activated without any obstacles in front of the vehicle. Since then, this issue has happened numerous times while driving. When the incident occurs, the system flashes a “Brake” warning and suddenly applies the brakes while I am driving. This creates a serious risk of a rear-end collision, loss of control, or bodily harm. I had the vehicle inspected by an authorized Honda dealership on August 1, 2025 for this issue. Despite the inspection, the malfunction continues to occur. Although I have not yet been involved in an accident, this defect poses an ongoing safety hazard for myself, passengers, and others on the road. I request that NHTSA investigate this matter.

The contact owns a 2020 Honda Accord. The contact stated that when attempting to start the vehicle, it would rev up and take an extended 15-second start before starting. The vehicle was taken to the dealer, who was not able to duplicate the issue; however, did presume that a defective fuel system caused the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000.

Every light on the dash board is on

The fuel pump had to be recalled and caused the fuel injectors to start failing.

To Whom It May Concern, I am writing to formally report a serious safety issue involving the automatic emergency braking (AEB) system on my Honda Accord 2020. The system has been engaging randomly and without cause, abruptly applying the brakes when there is no obstacle or hazard present. On multiple occasions, this malfunction has occurred while driving at normal speeds, including on highways and in moderate traffic. These sudden, unprovoked braking events have created extremely dangerous situations, nearly causing rear-end collisions and putting both myself and other drivers at risk. Despite there being no obstruction in front of the vehicle, the system behaves as though an emergency stop is necessary. This issue not only undermines the purpose of the safety feature but also significantly increases the risk of an accident due to unexpected deceleration. I urge Honda to thoroughly investigate this issue, as it appears to be a potentially widespread and dangerous defect. I am requesting that the company: •Address and correct the fault in my vehicle’s AEB system at no cost •Provide a clear explanation of the root cause •Inform me of any recalls or technical service bulletins (TSBs) related to this problem

I noticed a loud grinding noise and reduced braking power coming from my 2020 Honda Accord while driving at normal city speeds. A local mechanic inspected it and found that the rear brake caliper was sticking and causing premature wear. I contacted Honda service, but they refused to cover the cost or inspect it under goodwill, even though similar issues have been reported with other Honda models. This issue puts my safety at risk as braking is compromised and steering becomes harder. The problem was confirmed by a local certified mechanic and is available for inspection if needed.

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.

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. Given the safety risks and the number of affected vehicles, I kindly request that you investigate this matter thoroughly and consider issuing a recall. Owners should not be left responsible for costly repairs when the problem is clearly a recurring defect. Thank you for your time and attention.

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.

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.

The contact owns a 2020 Honda Accord. The contact stated while driving at various speeds, the vehicle lost motive power. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that fuel the injector was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 104,000. The VIN was not available.

I was driving down the road, on Pinewood rd Sumter sc 29154, the front camera sensed something in the road but nothing was in the road I didn’t brake because I didn’t see anything in the road the orange brake light flashed on dash, so the car did a hard brake of its own, it jerked me the driver I had a sore neck and upper back area for a day due to the hard brake that jerked me. I continue to have phantom braking but I brake when this occurs to avoid hard jerks. I have not yet taken to the dealership.

Driving on I70 mm152.2 my transmission went out and I was left quickly slowing on the interstate. I was in left line and cars were passing on the right. I needed to get over because I could not pull over to the left. Thought I might get stuck stopped on the interstate but was able to get over safely. Car only had 88000 miles on it and was less than 5 years old

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 .

Vehicle will randomly slam on brakes to a dead stop, engaging my seatbelt when engine braking behind a vehicle. Usually happens on surface streets when the vehicle in front of me is turning into a driveway/tight right turn. My velocity is decreasing & I am not at risk of colliding with the vehicle every time. System does not seem to register engine braking with a manual transmission as “braking.” I’ve nearly been rear ended several times due to coming to a dead stop in traffic. I’ve asked Honda how to permanently disable the system, with the only advice to turn it off manually every single time I start the vehicle.

I tried to take my car to the dealer because my car brakes on its own and it had a alert that something was wrong with the air bags . I can ve driving anywhere and without reason the car breaks putting my life in danger and my family. I have tried to contact the dealer about this serious matter but I don't get anywhere. I am reaching out to see what solution we can come to ?

The contact owns a 2020 Honda Accord. The contact stated that while driving at various speeds, the brakes were independently activated without the driver depressing the brake pedal. The “Service Brakes” warning light was illuminated. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. In addition, the contact related the failure to Honda Recall: TN2; however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 67,000.

I have a seat sensor airbag code and a b0d5 code

Received the following message "Supplemental Restraint System Problem. See Your Dealer" on my car dashboard. Brought to dealer and was told the issue was with the front passenger airbag cut on/off indicator. Was told this needed to be fixed or the airbag would not work. It was not covered by Honda as it was over 3 years and 36000 miles. Spoke to Honda and was informed I am not the only one with this problem but they would not cover it. Had to go out of pocket almost $500 on a malfunction that should be covered by a recall.

Multiple warning lights on the dashboard come on and stay on including but not limited to check engine light, abs, break lights ect…

Car is giving a P0301 error. Replaced coils and spark plugs still giving error. The problem is fuel inejectors. Gives car a rough idle at start up.

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 that have known issues that lead to the lockdown and therefore stalling out of a brand new vehicle. Not everyone knows they need to come here and file a complaint. There are so many more people with this same issue. I don’t have an incident report because by the grace of God I was able to avoid the incident. How many people have to get hurt before we make Honda accept this critical engine damage is their responsibility to fix. That doesn’t even include the thousands of people who have spent their hard earned money to purchase a car. They’re supposed to be number one and safety only to have to deal with the engine installing. Is my hope that you would look further into any investigations you may already have people should not have to file lawsuits to get Honda to fix this. It is dangerous and it is not acceptable. On top of that it’s extremely pricey a big deal to force your customer to foot when they’ve done nothing wrong.

The Honda Infotainment system, does not respond to touch, and randomly changes screens as if someone is pushing buttons. It randomly switches to the phone, contacts, music, Bluetooth connection, and navigation. When using navigation it moves the map and brings up routes. This can cause significant distractions to the driver. Multiple individuals have reported this issue to the dealer.

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 7th occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 70 mph to 60 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident (6:21 PM), I was in the right lane. Traffic was heavy. The weather was overcast and dry in tire path. CMBS was OFF. ACC was OFF. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 6th occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 45 mph to 30 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident (5:52 pm), I was in the left lane. Traffic was moderate. The weather was rainy and wet. CMBS was OFF. ACC was OFF. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 5th occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 65 mph to 25 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident (8:12 AM), I was in the left lane. Traffic was light. The weather was rainy and wet. CMBS was on. ACC was off. This very nearly resulted in total loss of control of the vehicle. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

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" .

Just like the 2018 Accord in Still Night Pearl (addressed in TSB 21-087), the paint has peeled and failed on the roof line by the rear glass. Called Honda, they don't care to address ANY vehicles with this KNOWN paint defect any longer. Now we have to pay thousands of dollars out of pocket to get it resolved or the steel will start to rust. Will NEVER purchase a Honda ever again.

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 4th occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 70 mph to 55 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident (8:09 am), I was in the right lane. Traffic was very light. The weather was overcast but dry. CMBS was on. ACC was on. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 3rd occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 70 mph to 65 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident, I was in the right middle lane. Traffic was light. The weather was clear and dry. CMBS was on. ACC was off. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 2nd occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle's forward collision warning triggered an audible and visual alert that could not be shut off. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident, I was in the left lane. Traffic was very light. The weather was dark and dry. CMBS was on. ACC was off. LKAS was on. RDM was on. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty Visual and audible alerts were present before, during, or after the event

- Component/System failure/malfunction: ADAS. Specifically, CMBS and/or ACC. - My car has repeatedly experienced unexpected braking events, rapidly bringing me to nearly a complete stop in the highway. During this time, I have no ability to control the speed of my vehicle. This has been occurring during my ~70 mile commute on I-675, I-75, and I-275. - Despite having the car on multiple occasions and for over a week collectively, the issue has not been replicated by the dealer. - The vehicle has not been inspected by the manufacturer, police, insurance representatives, or others to date. The Honda dealer has not initiated any further inspection. - During these failures, the car has (often) been braking without due reason or any alert to the driver. No system malfunction was found (either shown to driver or in computer log, as verified by dealer). Please review attached document for further details regarding the incident(s). This copy has been presented to Honda and the Ohio Attorney General.

It is uncertain which specific system/systems have failed/malfunctioned at this point. Despite frequent and consistent communication with Honda, no real attempt has been made to uncover the cause of this issue, and no solution has been provided. The vehicle has been, and is, available for inspection upon request. This is the 1st occurrence since the first event on 21 April 2025. This occurred on the interstate. During this event, the vehicle rapidly decelerated from 75 mph to 20 mph without the ability of the driver to intervene or take back control of the vehicle. This led to a very near miss as traffic was rapidly approaching the rear of my vehicle. At the time of the incident (5:10 pm), I was in the left lane. Traffic was moderate. The weather was clear and dry. CMBS was on. ACC was (status unknown). LKAS was on. RDM was on. Problem has not yet been reproduced but dealer has verbally indicated that they get frequent complaints about the system. This includes one employee who has experienced this on his personal vehicle. Many DTCs have been recovered from the vehicle’s log. Manufacturer: Yes, vehicle has spent 30 days, to date, in custody of Honda Police: Not yet. Will do immediately if advised Insurance Representatives: Not yet. Will do immediately if advised Others: No. Any work on the vehicle performed outside of Honda East Cincinnati will void the warranty No warning or alert (audible or visual) lights were present before, during, or after the event

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 and consider whether a recall or manufacturer service campaign is necessary. Symptoms include: •Sudden engine power loss •Error code P0299 •Inability to accelerate safely •Safety risk during lane changes and merges First occurrence: April 20, 2025 Ongoing issue: Yes Mileage at first occurrence: 111, 000 Crash or injury: No Thank you for your attention to this matter

I had an appointment today (4/18/2025) at Causeway Honda in Manahawkin, NJ to remedy the recall of the 2020 Honda Accord seat weight sensor circuit board. When I got there Amanda from the service department said they cannot fix the issue because Honda will not pay for it. She said that they are only fixing cars that has an SRS indicator illuminated on the display panel.