Honda Accord Complaints (2020)

407 consumer complaints on file.

#11687757September 16, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687758September 16, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687759September 16, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11687760September 16, 2025
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, FORWARD COLLISION AVOIDANCE: WARNINGS
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11686692September 11, 2025
FUEL SYSTEM, GASOLINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685275September 5, 2025
FUEL SYSTEM, GASOLINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685302September 5, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685321September 5, 2025
ENGINE, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11685172September 4, 2025
ELECTRICAL SYSTEM
I am reporting a potential safety issue with my 2020 Honda Accord Touring Hybrid. On September 4, 2025, my dealership identified a non-genuine purple quick-splice connector in the driver’s door harness, which they attribute to error codes B1142 (Driver’s Door Lock Knob Switch Circuit), U0199 (Lost Communication with Driver’s Door Module), and U3003-16 (Electric Servo Brake Control Unit Power Source Low Voltage). This connector, not installed by the recent audio installer who put only upgraded speakers and deemed non-Honda, may be an aftermarket modification (possibly an alarm/tracker or anti-theft device) causing electrical faults. While no water was found, the issue could impact brake assist (U3003-16), posing a safety risk. I request NHTSA investigate whether this reflects a widespread manufacturing or modification defect, especially given reports of similar quick-splices at dealerships for repos or fleet locking. A Reddit user said, “ We see these at our dealer frequently. Those are quick-splices, usually used to piggyback off your oem wires to supply voltage/signals to an aftermarket alarm/tracker. Other dealerships install this in the event of repos/auto locking an entire fleet/or additional anti-theft.”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683831August 29, 2025
SERVICE BRAKES
The contact owns a 2020 Honda Accord. The contact stated that while operating the vehicle, the message "Service Brakes" was intermittently illuminated. The vehicle was taken to the local dealer on several occasions, but no fault for the issue was identified. The contact stated that the failure persisted, and eventually, the dealer diagnosed the vehicle and determined that the brake booster was faulty and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 10,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11683679August 28, 2025
SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11682206August 21, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11681818August 20, 2025
FORWARD COLLISION AVOIDANCE: WARNINGS
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680908August 15, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680442August 13, 2025
AIR BAGS
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11680006August 11, 2025
ENGINE
Five times the past year, while driving on the freeway, the first incident I cannot remember, but I do know that the other four incidents were on a slight incline. The car acted as if it wasn’t getting enough gas and slowed down and was shaking. Giving gas would not help, and it kept slowing down. The check engine light would come on and once I turned off the car and turned it back on, the car acted normal again. Sometimes I had to keep it turned off at least a minute before it would run normal again. I took it to the dealership twice and both times I was told that because the engine light was not on, they did not know what was wrong. I asked if they could check the computer to look for faults, and they said that is a waste of time because not only would I have to pay for the service,but they could guarantee that faults will not be found so it would be a waste of my money. The fact that this has happened so many times., once every a few months, and the fact that there has been similar problems on other models/years, I would like to report that I think it also has to do with my model and year. While filling out this report, it only showed that it was a 2020 Honda Accord and did not include the fact that it is a hybrid if that makes a difference. My car is a 2020 Honda Accord hybrid. Last incident was this past Saturday. August 9, 2025. This was the worst incident due to it took longer to correct itself and took three tries.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679363August 8, 2025
ENGINE
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 .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678012August 2, 2025
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
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’.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11678027August 2, 2025
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER, ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11677797August 1, 2025
ENGINE, FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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