2019 Honda Accord

On February 21, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE22003) to assess reports of inadvertent activation of the Collision Mitigation Braking System (CMBS), an automatic emergency braking (AEB) system, in model year 2017-2019 Honda CR-V and 2018-2019 Honda Accord vehicles.  The reports allege that activation of the AEB system occurs while driving with no apparent obstruction in the vehicle's forward path, resulting in sudden vehicle deceleration. Honda indicated that they were aware of a total of X,XXX reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and alleges that some customers possibly had an inadequate understanding of the CMBS and its limitations.  However, many consumer complaints allege that Honda dealerships were unable to reproduce the condition or state that they were informed that this is considered normal CMBS operation. To date, ODI has received a total of 1,294 consumer complaints of inadvertent activation of CMBS in 2017-2022 Honda CR-V and 2018-2022 Honda Accord vehicles. A total of 31 complaints alleged a crash and 50 alleged an injury.  The Total column in the Failure Report Summary removes duplicate reports and shows the total number of reports with unique VINs from all Manufacturer, ODI, and EWR data sources.  In some cases, there were multiple reports associated with a particular vehicle in which recurring failures were alleged.  In total, there were X,XXX reports, 93 injury incidents and 47 crashes involving vehicles with unique VINs that may relate to the alleged defect. PE22-003 has been upgraded to an Engineering Analysis to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations. The scope has been expanded to include assessment of model year 2020-2022 Honda CR-V and Accord vehicles. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

On February 21, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE22003) to assess reports of inadvertent activation of the Collision Mitigation Braking System (CMBS), an automatic emergency braking (AEB) system, in model year 2017-2019 Honda CR-V and 2018-2019 Honda Accord vehicles.  The reports allege that activation of the AEB system occurs while driving with no apparent obstruction in the vehicle's forward path, resulting in sudden vehicle deceleration. Honda indicated that they were aware of a total of X,XXX reports that may relate to the alleged defect. Honda provided analysis of the alleged defect and alleges that some customers possibly had an inadequate understanding of the CMBS and its limitations.  However, many consumer complaints allege that Honda dealerships were unable to reproduce the condition or state that they were informed that this is considered normal CMBS operation. To date, ODI has received a total of 1,081 consumer complaints of inadvertent activation of CMBS in the subject vehicles.  A total of 24 complaints alleged a crash and 42 alleged an injury.  The Total column in the Failure Report Summary removes duplicate reports and shows the total number of reports with unique VINs from all Manufacturer, ODI, and EWR data sources.  In some cases, there were multiple reports associated with a particular vehicle in which recurring failures were alleged.  In total, there were X,XXX reports, 84 injury incidents and 40 crashes involving vehicles with unique VINs that may relate to the alleged defect. PE22003 has been upgraded to an Engineering Analysis (EA24002) to further assess the scope, frequency, and potential safety related consequences of the inadvertent AEB activations.  Further the scope has been expanded to include assessment of model year 2020-2022 Honda CR-V and Accord vehicles. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

Vehicle caused a SEVERE drivability condition while at highway speeds by sputtering, losing power and auxiliary driver's systems becoming degraded. We were able to drive the vehicle in limp mode to a near service station. They ran diagnostics and determined that there were multiple secondary events affecting the ADAS system. They also checked the battery and determined it was marginally good. We managed to drive the vehicle in degraded mode to our home and we changed the battery the following day. Upon doing so, all affected systems became available again and the vehicle's driveability profile was restored. This behavior is incredibly unsettling and UNSAFE. A vehicle that is so sensitive to electrical fluctuations should have BETTER warning systems that would prevent, or at least advise the driver, that an unsafe condition will occur unless the battery is promptly replaced. This behavior could easily cause an accident if the driver is unprepared to react to the vehicle sudden and unpredictable shutdown of engine power and safety systems. This needs to be investigated and corrective measures need to be promptly proposed to affected vehicle.

NHTSA ID

11756371

Incident

May 5, 2026

All lights comes on. Car shuts down, and electrical misfire

NHTSA ID

11756243

Incident

Apr 1, 2026

The car was driving fine and then all of the dashboard lights came on. The car wouldn’t drive faster than 20 MPH. The dealership said it was a head gasket and injector problem. They quoted me $6000

NHTSA ID

11756139

Incident

Aug 10, 2026

I was driving on the highway in Michigan, the speed limit is 70 mph. All of a sudden, I noticed that my car acceleration was not working. It ended up my engine misfired and in doing so, I could not go more than 20 mph on the actual highway!!! it was absolutely terrifying, even when I put on my emergency lights, I had to find a place to safely pull aside. I still had to pull out in front of someone to try to get off the exit, so pulling out in front of someone at 20 mph on the highway was petrifying. Once, I finally was able to pull into a safe place. I immediately called my insurance company and Honda about the misfiring of my engine. My car was then towed to a Honda dealership, where technicians diagnosed a blown head gasket caused by coolant leaking into a cylinder. The only warning light was the “check engine” flashing light when I was unable to drive more than 20 mph. My vehicle went limp. The repair required replacement of the head gasket at significant personal expense About $6k +.

NHTSA ID

11754889

Incident

Jul 28, 2026

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated. The vehicle lost motive power and went into LIMP Mode, and the steering wheel seized. The vehicle was taken to the local dealer, and the failure was initially misdiagnosed. The vehicle was then towed to the dealer a second time, and the dealer discovered that the battery and fuel injectors needed to be replaced. The vehicle was repaired, but the failure recurred. The vehicle was later diagnosed, and it was determined that a gasket had failed. The vehicle was repaired, but the failure persisted. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 72,281.

NHTSA ID

11754772

Incident

Jul 14, 2023

Mileage

72,281 mi

The contact owns a 2019 Honda Accord. The contact stated that while driving at an undisclosed speed, the vehicle stalled with several unknown warning lights illuminated. The contact scanned the vehicle and retrieved a fault code associated with the high-pressure fuel pump failure. The vehicle was towed to dealer to be diagnosed. The dealer diagnosed the vehicle with misfires in cylinders #1 and #4 and spark plug failures. The vehicle was repaired and test driven. The manufacturer was made aware of the failure. The failure mileage was approximately 120,000.

NHTSA ID

11754739

Incident

Jul 14, 2026

Mileage

120,000 mi

CAR SUDDENLY TRIES TO STOP ON CLEAR ROAD GOING FREEWAY SPEED OF 70MPH. I'M TRAVELLING ON THE HOV LANE WITH FEW VEHICLES ON THE LANE TO MY RIGHT. THERE ARE NO VEHICLES IN FRONT OF ME.

NHTSA ID

11753854

Incident

Jul 30, 2026

My car began to not turn on. Took it to the dealership, was told it was the turbocharge being loose. They saw coolant leaking. Paid for the fix. Few days later, car lost power and entered lint mode. Took it back and with simple camera work they check the gasket was leaking. Told that since the turbo before wasn’t working as intended, the gasket became thin. Repairs are above 6k, had no warning lights. Seems this is a common issue.

NHTSA ID

11753844

Incident

Jul 9, 2026

Service Bulletin - Honda has developed software updates to the Honda Sensing system to enhance driver experience by modifying the circumstances when the advanced driver assist system (ADAS) decelerates the vehicle or the extent of deceleration. The software covers Adaptive Cruise Control (ACC), Collision Mitigation Braking System (CMBS), and Road Departure Mitigation (RDM).

Service Bulletin - American Honda has identified a condition that may affect Collision Mitigation Braking System (CMBS) operation. Due to software programming issues of the Advanced Driver Assistance System (ADAS), unexpected vehicle deceleration may occur.

Dealer Message - Due to software programming issues of the Advanced Driver Assistance System (ADAS), unexpected vehicle deceleration may occur.

Dealer Message - Some customers have reported a pop-up message on the audio unit display stating: “Please insert USB drive containing valid software license file and press OK button.” When this message appears, the audio unit becomes unresponsive. The rear-view camera remains functional.

Tech Line Summary - Customers who have purchased the Accessory CarPlay /Android Auto upgrade are complaining that a pop-up message appears on the audio unit display stating, “Please insert USB drive containing valid software license file, and press OK button”. When this message is displayed, the audio unit is not responsive to control inputs, however the rear-view camera remains fully functional.

Dealer Message - Some customers have reported a pop-up message on the audio unit display stating: “Please insert USB drive containing valid software license file and press OK button.” When this message appears, the audio unit becomes unresponsive. The rear-view camera remains functional.