Home · 2018 Honda Accord Plug In Hybrid · Complaints

What 1,812 owners told NHTSA about the 2018 Honda Accord Plug In Hybrid

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (1,812)Crash / fire / injury (54)Engine (513)Fuel system (458)Driver assistance (326)Electrical system (276)Brakes (251)Transmission & drivetrain (130)Speed control (110)Steering (59)Body & structure (57)Airbags (56)

326 of 1,812 complaints match · Driver assistance · clear filters · page 7 of 14

Jul 8, 2023BrakesEngineDriver assistance

When I am driving, the car turns off in the middle of the road and this warning message appears: Collision Mitigation Braking System Problem See Your Dealer. I took it to the dealer. They changed the battery, but the problem still occurs. This is dangerous because the car cut off in the middle of the road where you can get rear ended.

NHTSA ODI 11531047

Jul 6, 2023BrakesDriver assistance

Unknown

NHTSA ODI 11530682

Jun 20, 2023Driver assistanceLane Departure

My acc went out along with my collision mitigation system and no accident just for no reason.

NHTSA ODI 11528016

Jun 12, 2023Driver assistance

I was driving my vehicle on an open highway. There were no road hazards or other vehicles in front of me when my car slammed on the brakes. The brakes caution light flashed and beeped on my dashboard and the car slammed on the brakes. If I had another vehicles behind me I would have been rear ended. This is the 3rd time my vehicle has done this since I purchased it.

NHTSA ODI 11526554

Jun 8, 2023Service Brakes, AirDriver assistance

The contact owns a 2018 Honda Accord. The contact stated that while driving approximately 35 MPH, the brakes locked up and the vehicle came to a sudden stop. The driver and passenger were jolted towards the windshield. The brake warning light was illuminated. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 7,000.

NHTSA ODI 11526058

Jun 8, 2023Driver assistance

The contact owns a 2018 Honda Accord. The contact stated that while driving at an undisclosed speed, the vehicle experienced phantom braking. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure. The contact stated that the failure recurred several times intermittently. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.

NHTSA ODI 11526010

Jun 2, 2023Driver assistance

Acc, breaking system, lane departure, collision warnings all on. Cruise control not working! The cmbs is not functioning properly.

NHTSA ODI 11525120

May 15, 2023Driver assistance

The contact owns a 2018 Honda Accord. The contact stated that while driving approximately 40 MPH, the Forward Collision Avoidance braking system erroneously activated causing the vehicle to abruptly stop in the middle of the road. During the failure, there were no other vehicles or objects nearby. The contact stated that the failure recurred on several occasions. The cause of the failure was not yet determined. The local dealer and manufacturer were not yet notified of the failure. The failure mileage was 25,000.

NHTSA ODI 11522071

May 10, 2023EngineFuel systemDriver assistance

My car 40,000 miles and all waring lights are coming on the dash such check engine,lane acc,steering,brake ,parking , took to Honda dealer they say nothing was wrong now there saying it the fuel inject and it will be 1,250 to fix i been look it up and see there's a lot of other ppl with the same problem but no recall for the 2018 Honda Accord sport

NHTSA ODI 11521309

May 7, 2023Driver assistance

I was driving on a road with no other cars around at about 40 miles an hour and the collision mitigation system flashed the brake signal a few times and tried to stop very suddenly. I pushed on the gas to fight it and it released the brake.

NHTSA ODI 11520806

May 4, 2023Driver assistance

The contact owns a 2018 Honda Accord. The contact stated while driving 65 MPH, the vehicle independently made a sudden stop. The brake warning light illuminated along with other unknown warning lights. The contact was able to pull over on the side of the road safely and turned off the vehicle. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired. The dealer was contacted and stated that the Manufacturer was aware of the failure, but that there was no recall for the failure. The manufacturer was not contacted. The failure mileage was 70,000.

NHTSA ODI 11520501

Apr 10, 2023Electrical systemDriver assistance

the vehicle has faults on the dashboard, all the warning lights come on and there are functions that do not work when they are on.

NHTSA ODI 11516422

Apr 7, 2023Driver assistance

On April 7 at 1230p I was driving about 45 mph on Lindbergh Blvd in Creve Coeur. As I was moving into a construction area there was a sign to lower speed to 35. I lowered my speed with my brakes and at the same time traveled over a metal plate on the road. After I let up on the brakes there was an immediate very jarring breakage done without my foot on brake as I went over the plating. The abrupt braking was so severe that all of the belongs on both front passenger and back seats all fell to the floor. There is no doubt in my mind that if there was a car behind me they would ran right into me. After going over the plating the braking system was released and my regular driving ability resumed. I would be afraid to try to reproduce this problem. Since owning the car I have had about 5 less severe problems with this automatic braking system on this same road with the system sensing something that was not there (I thought it was a policeman's radar) with a very very short and less severe automatic braking. I did not not notice any warning lamps, messages or other symptoms of the problem .

NHTSA ODI 11516002

Apr 6, 2023Electrical systemDriver assistanceLane Departure

I down loaded my update through the radio. It said complete. I went into the house and the next morning I started it and a bunch of warning lights were on and have stayed on. I can not use some of the buttons on the drivers door, I can not use my key fob unless it is touching the start stop button, I can not open the trunk, the gas cap will not open, and most of all I have lost some power to the interior fuse box. This car is only 5 years old almost to the date and it has had multiple recalls already. I want the BCM reprogrammed and fixed so all this will go away.

NHTSA ODI 11515858

Mar 19, 2023Driver assistance

The vehicle's safety system (not sure if it's the camera mounted behind the windshield or something else) will periodically interpret a road speed sign as showing 100mph speed limit. This has happened before and will have happened again (I am filing this complaint after some time has passed). As with a number of other issue with the 2018+ Honda models, Honda's response has been "take it to the dealer" while the dealer's mechanic drives the car for an hour, does not see the issue and then claims that nothing is wrong with the vehicle. A picture is attached.

NHTSA ODI 11512651

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. This is due to the Radar Sensor being blocked and then other safety systems in the vehicle having cascading failures. In the winter of 2019, the Radar Sensor had failed catastrophically and I had to take the vehicle in to the dealer where they, supposedly, performed some sort of an adjustment. During a phone call with a Honda representative, the representative claimed that "this would never happen again." However, what happens now is I get an error message claiming that there is a failure in the CMBS system, every time the Radar Sensor is blocked, directing me to "take the vehicle to the dealer." Hence, she lied. Furthermore, the failures indicate Honda's failure in producing a safety system that is reliable in a wide range of weather conditions. Honda CEO recently claimed that Honda will be producing Level 3 autonomous vehicles. That is horrifying, considering Honda can't even make a CMBS and a Radar Sensor that does not fail constantly. Please, please, please make Honda recall ALL the models which use the Radar Sensor and the CMBS that is similar to the one in the 2018 Accord before someone gets really hurt. Please.

NHTSA ODI 11512654

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. This is due to the Radar Sensor being blocked and then other safety systems in the vehicle having cascading failures. In the winter of 2019, the Radar Sensor had failed catastrophically and I had to take the vehicle in to the dealer where they, supposedly, performed some sort of an adjustment. During a phone call with a Honda representative, the representative claimed that "this would never happen again." However, what happens now is I get an error message claiming that there is a failure in the CMBS system, every time the Radar Sensor is blocked, directing me to "take the vehicle to the dealer." Hence, she lied. Furthermore, the failures indicate Honda's failure in producing a safety system that is reliable in a wide range of weather conditions. Honda CEO recently claimed that Honda will be producing Level 3 autonomous vehicles. That is horrifying, considering Honda can't even make a CMBS and a Radar Sensor that does not fail constantly. Please, please, please make Honda recall ALL the models which use the Radar Sensor and the CMBS that is similar to the one in the 2018 Accord before someone gets really hurt. Please.

NHTSA ODI 11512657

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. This is due to the Radar Sensor being blocked and then other safety systems in the vehicle having cascading failures. In the winter of 2019, the Radar Sensor had failed catastrophically and I had to take the vehicle in to the dealer where they, supposedly, performed some sort of an adjustment. During a phone call with a Honda representative, the representative claimed that "this would never happen again." However, what happens now is I get an error message claiming that there is a failure in the CMBS system, every time the Radar Sensor is blocked, directing me to "take the vehicle to the dealer." Hence, she lied. Furthermore, the failures indicate Honda's failure in producing a safety system that is reliable in a wide range of weather conditions. Honda CEO recently claimed that Honda will be producing Level 3 autonomous vehicles. That is horrifying, considering Honda can't even make a CMBS and a Radar Sensor that does not fail constantly. Please, please, please make Honda recall ALL the models which use the Radar Sensor and the CMBS that is similar to the one in the 2018 Accord before someone gets really hurt. Please.

NHTSA ODI 11512659

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. This is due to the Radar Sensor being blocked and then other safety systems in the vehicle having cascading failures. In the winter of 2019, the Radar Sensor had failed catastrophically and I had to take the vehicle in to the dealer where they, supposedly, performed some sort of an adjustment. During a phone call with a Honda representative, the representative claimed that "this would never happen again." However, what happens now is I get an error message claiming that there is a failure in the CMBS system, every time the Radar Sensor is blocked, directing me to "take the vehicle to the dealer." Hence, she lied. Furthermore, the failures indicate Honda's failure in producing a safety system that is reliable in a wide range of weather conditions. Please make Honda recall ALL the models which use the Radar Sensor and the CMBS that is similar to the one in the 2018 Accord before someone gets really hurt. Please.

NHTSA ODI 11512665

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. This is due to the Radar Sensor being blocked and then other safety systems in the vehicle having cascading failures. In the winter of 2019, the Radar Sensor had failed catastrophically and I had to take the vehicle in to the dealer where they, supposedly, performed some sort of an adjustment. During a phone call with a Honda representative, the representative claimed that "this would never happen again." However, what happens now is I get an error message claiming that there is a failure in the CMBS system, every time the Radar Sensor is blocked, directing me to "take the vehicle to the dealer." Hence, she lied. Furthermore, the failures indicate Honda's failure in producing a safety system that is reliable in a wide range of weather conditions. Please make Honda recall ALL the models which use the Radar Sensor and the CMBS that is similar to the one in the 2018 Accord before someone gets really hurt. Please.

NHTSA ODI 11512667

Mar 19, 2023Body & structureEngineDriver assistance

I've filed the specific issues in other complaints, but also wanted to input this for a record. After taking the card to the dealer, the dealer DID NOT address any of the following: Right door speaker rattle Engine squeak (when shutting off) Hood vibration Did not troubleshoot the smell coming from the ventilation system. Did not apply the fix (if there was one) for the infotainment unit restarting abruptly. Did not look at as to why the display shows 100mph speed limit when there is no such thing in the the state of Colorado (that I know of and certainly not where I was driving when this happened). Did not look at why the aux display has issues Did not look at Bluetooth connectivity issues. Did not look at problems with radar and the CMBS system. Of course, the usual response is "we drove it for an hour (if that) and did not see anything."

NHTSA ODI 11512679

Mar 19, 2023Driver assistance

The CMBS (Collision Mitigation Braking System) had another failure. In this case, there was "phantom braking", whereby the car abruptly applied breaks without an abstruction in fron of the vehicle. I have filed several complaints with NHTSA and, yes, "have taken the vehicle to the dealer" more than once for issues with the CMBS, to no avail. Not only that, but since then, there has been a class action lawsuit against Honda for the related issue(s). Yet, NHTSA still has not issued a recall on all the CRVs, Accords, Pilots and Odysseys which all use similar version of this system.

NHTSA ODI 11512668

Mar 16, 2023Driver assistance

The contact owns a 2018 Honda Accord. The contact stated while driving 60 MPH with the cruise control activated, the vehicle abruptly stopped with unknown warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 45,000. The contact stated that at the time of the incident, the automatic braking system engaged by itself most likely due to the fact that a car was really close to the vehicle and possibly sensed danger.

NHTSA ODI 11512251

Mar 9, 2023Driver assistance

I have had a few instances where I was driving and the brake warning light started flashing and the car broke. This latest incident was today and it was extremely dangerous and scary. I was driving and no one was driving in front of me the car warning brake light flashed and the car came to a complete stop, the car behind me had to swerve to avoid hitting me from behind and I wasn’t even able to press on the gas to move until after a few seconds!!

NHTSA ODI 11511030

Feb 27, 2023Driver assistance

I was using the cruise control feature while driving and it gave multiple errors. It happens each time I use the cruise control feature and assisted driving feature. The errors it gives are: 1. Road Departure Mitigation System Problem. See Your Dealer. 2.Adaptive Cruise Control System Problem. See Your Dealer. 3. Collision Mitigation Braking System Problem. See Your Dealer. I have also been driving and it breaks by itself and there is nothing in from of the vehicle. It was an orange flat plate on the road for construction. I have taken the vehicle to the dealer but they say it’s all normal.

NHTSA ODI 11509392

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Working with the data? Download all 1,812 complaints as CSV · fetched from NHTSA July 28, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2018 Honda Accord Plug In Hybrid verdict →