RoadVitals

2020 Honda Accord Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
123
Latest Sep 20, 2026
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
34%
of 362 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
6
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
3

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2020 Honda Accord submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 123 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming driver-assistance

The 25 most recent of 123, in the owner's own words

Driver assistance
Filed Sep 20, 2026

Hello, I am requesting immediate attention to an issue with my vehicle that I believe is related to a factory defect. The recall service was completed, but the problem was not corrected. The warning lights are still illuminated on the instrument cluster, including ACC and LKAS. Since this issue appears to be related to a factory defect and the vehicle is still under warranty, I am requesting that the vehicle be properly diagnosed and repaired under the factory warranty at no cost to me. I am also concerned about the safety of operating the vehicle while these warning lights remain on. Please document this concern on the repair order and provide me with a clear explanation of the cause and the repairs needed. Please treat this as an urgent warranty repair request.

NHTSA ID
11765647
Incident
Sep 20, 2026
Driver assistance
Filed Sep 19, 2026

I was driving on the freeway at freeway speed with my Mom and daughter in the car and all of a sudden the car decelerated suddenly to almost a stop, sending us all flying forward. I felt like we had to have hit something, but we didn't; it just felt that way because of the sudden, abrupt stop while going freeway speed. Our bodies are sore this morning as a result. Thankfully, no one was directly behind me at the time, and we didn't get rear-ended. This could have definitely caused fatalities. If I were to have been killed, no one would have known it was a vehicle malfunction. They would have thought I braked hard for some unknown reason. Even if I braked hard, it wouldn't have caused such an impact; this felt like we hit a wall because the wheels seemed to just lock. Very frightening. I'll probably have to take my Mom to get looked over by a doctor due to the flying forward. Her seat belt flung her back, but for elderly people, it could cause some damage. It took me a moment to realize what happened.

NHTSA ID
11765511
Incident
Sep 18, 2026
Driver assistance
Filed Sep 7, 2026

The Break light flash on my dashboard when I was driving on route 42 doing 65mph

NHTSA ID
11762567
Incident
Sep 7, 2026
Driver assistance
Filed Aug 27, 2026

I was driving on 42 at 2:05 a.m. And I was heading towards the exit to get off and I started slowing down and after I took my foot off the brake, the brake light illuminated on my dashboard for me to hit the break, like something was in front of me and there wasn’t anything in front of me.

NHTSA ID
11759978
Incident
Aug 26, 2026
Driver assistance
Filed Aug 26, 2026

I was driving on route 42 at 11:52 PM and my brake light illuminated on my dashboard indicating me to hit the brake so I stepped on the break so my car wouldn't brake itself. There was nothing directly in front of me for that like to come on but it did. The highway was dry there was a little bit of cars on the highway but in front of me

NHTSA ID
11759697
Incident
Aug 24, 2026
Driver assistanceEngineSteering
Filed Aug 25, 2026

The contact owns a 2020 Honda Accord. The contact stated that while driving on several occasions at various speeds, the messages "Emissions System Failure," "Electric Power Steering Failure," "Hill Start Assistant Failure," "Collision Mitigation," "Collision Road Departure," "TPMS Failure," "Brake System Failure”, “Brake Performance Reduced", "Vehicle Stability Assistance Failure," "Adaptive Cruise Control Failure", "Road Departure Mitigation Failure," and "Brake Hold System Failure" were displayed. The contact stated that the check engine, TPMS, brake system, traction control, and power steering warning lights were illuminated. The vehicle was taken to a dealer where it was diagnosed that the head gasket and turbocharger needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

NHTSA ID
11759489
Incident
Aug 21, 2026
Driver assistance
Filed Aug 24, 2026

I was driving on [XXX] at around 1252AM, and my Brake light lite up on my dashboard, indicating me to press on the break or the car was going to break its self. The roads were clear and dry, there was barely any traffic. If I didn’t press on the brake when the car told me too it would have stopped it’s self cause me and my passenger to get thrown forward and me to get hit in the rear of my car. This has been going on for quite sometime. I talked to [XXX] from American Honda customer service back in December of 2025 about what was going on with my car. I have removed the license plate holder thinking that was causing it but it wasn’t. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11759257
Incident
Aug 23, 2026
Driver assistanceElectrical
Filed Aug 24, 2026
Crash reported1 injury reported

I’m taking my car to the body shop over five occasions and have to take it back one due for it being a computer chip, which was replaced, but the lights on my dash all of them comes on after the second start up. Cruise control doesn’t work brake code doesn’t work all the lights for staring brakes says to check everything.

NHTSA ID
11758978
Incident
May 16, 2026
Driver assistance
Filed Aug 2, 2026

I was driving on Route 42 today at around 3:45 and my brake light flashed across my dashboard like I needed to step on my break because there was something in front of me but there was nothing in front of me. This has been going on for over a year now I have reported it multiple times and I'm just trying to see if you guys are going to fix it or inspect it I've cleaned off my radar also to make sure that wasn't the problem and it still does it

NHTSA ID
11754325
Incident
Aug 2, 2026
Driver assistanceFuel systemPowertrain (other)
Filed Jul 30, 2026

The car keeps giving me misfires

NHTSA ID
11753856
Incident
Jun 8, 2026
Driver assistanceElectricalEngine
Filed Jul 24, 2026

Took my car to Honda they stated my head gaskets and turbo charger was bad .. every shop that i talked to about the problem had stated that they have been getting a alot of my models coming in with the same issue

NHTSA ID
11752736
Incident
Apr 13, 2026
Driver assistance
Filed Jun 27, 2026

The car has had the code p0045 turbocharger. Honda was supposed to had repaired it but then the next week it had the same code and problem and they had it for 5 days. I got it back and less than 48 hours the same code came on.

NHTSA ID
11746950
Incident
Jun 24, 2026
Driver assistanceElectricalEngine
Filed May 6, 2026

All lights on dash are on. Problem with running hot, oil is milky looking misfires, vibration is terrible. Cuts off and will not go over 5 mph sometimes.

NHTSA ID
11736045
Incident
Feb 1, 2026
Driver assistanceFuel systemPowertrain (other)
Filed Apr 23, 2026

Transmission Fuel pump Ac compressor

NHTSA ID
11733453
Incident
Dec 31, 1969
Driver assistance
Filed Mar 27, 2026
1 injury reported

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.

NHTSA ID
11727531
Incident
Jul 11, 2025
Driver assistance
Filed Mar 25, 2026

There has been no incident with my vehicle but I am writing to look into this issue. I see several threads online regarding these warning lights that just randomly pop up without any indicator of a problem with the vehicle. This stops all these assistive features from responding if there were a hazard. Please look into this because Honda is not responsive to the recall issue.

NHTSA ID
11726958
Incident
Mar 25, 2026
Driver assistance
Filed Mar 10, 2026

Driving on rt 42 at 1042pm on March 1st going 60mph my cars break light came on for me to break like there was something in front of me but there wasn’t.

NHTSA ID
11723358
Incident
Mar 1, 2026
Driver assistance
Filed Feb 14, 2026

February 13th at 1256am my emergency break light flashed on my dashboard and beep for me to break but there was nothing in front of me. I was going 60mph on route 42. Roads were clear and there was no traffic.

NHTSA ID
11718025
Incident
Feb 13, 2026
Driver assistance
Filed Feb 10, 2026

On Thursday February 5th 2026 I was driving on route 42 at 1014pm going 60mph and my automatic break light came on and beeped as I was driving down the highway. There was nothing in front of me.

NHTSA ID
11717031
Incident
Feb 5, 2026
BrakesDriver assistanceElectrical
Filed Feb 2, 2026

9 warnings lights turned on on my dashboard and when going slow and accelerating it brakes by it self also brakes on freeway going 70 mph and then recovers

NHTSA ID
11714884
Incident
Jan 31, 2026
BrakesDriver assistance
Filed Jan 29, 2026

Driving on the white horse pike in Berlin New Jersey at 1:39pm on January 21st and my BREAK light warning light came on. There was nothing in front of me, I was doing 40mph. The roads were dry, There were no cars near me, and no traffic. It happened again on the same day January 21st, on the White Horse Pike in Lindenwold New Jersey. This one happened at 520pm, I was doing 45mph and my BREAK warning light came on. The road was dry, there was no traffic on the road, and no cars or debris in the road either.

NHTSA ID
11714328
Incident
Jan 21, 2026
Driver assistanceElectrical
Filed Jan 23, 2026

The contact owns a 2020 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the Forward Collision Avoidance message was displayed. The vehicle was taken to the dealer. The contact was informed that the radar sensor, located on the front bumper, indicated that the vehicle was involved in a crash. The contact stated that the vehicle was not involved in a crash. The vehicle was repaired. The contact stated that on a separate occasion, while driving at an undisclosed speed, the vehicle experienced phantom braking twice. After several minutes, the vehicle returned to normal functionality. The “BRAKE” message was displayed. The contact stated that the failure had occurred while driving on the expressway. The vehicle was not taken to the dealer or an independent mechanic to be repaired. Most recently, while driving at an undisclosed speed, several warning lights were illuminated and remained illuminated. Additionally, the cruise control and Lane Departure warning lights failed to function as intended. The vehicle also failed to accelerate as intended while depressing the accelerator pedal. The contact's wife pulled to the side of the road, turned off, and restarted the vehicle. The vehicle returned to driving as intended. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 35,000.

NHTSA ID
11712955
Incident
Jan 23, 2024
Mileage
35,000 mi
Driver assistanceElectrical
Filed Jan 8, 2026

All the indicator lights are activated on the dashboard. They go off after disconnecting the negative battery terminal bit co.e back on later.

NHTSA ID
11709633
Incident
Nov 3, 2025
Driver assistanceFuel systemPowertrain (other)
Filed Dec 17, 2025

While driving my 2020 Honda Accord Hybrid, VIN [XXX] , the car would start exhibiting rough engine feels, and all of the dashboard lights would come on. The car would lose power at highway speeds, and I’d have to pull over to turn the car off and on. When checking on OBDII meter, getting P0301 codes. I have replaced the coils and plugs twice and still not better. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID
11705486
Incident
Nov 20, 2025
BrakesDriver assistance
Filed Dec 15, 2025

While I was driving on the highway, the brakes of my car suddenly were violently activated and I had not touched the brakes. If there had been a car behind me, it would have been a major rear end collision. It was over quickly and I accelerated back to the normal speed. I talked to the Honda Service Mgr where I purchased the car and he said he was unaware of the problem although I see that that nearly 3 million Hondas have experienced this issue.

NHTSA ID
11705031
Incident
Dec 2, 2025

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

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