What 653 owners told NHTSA about the 2019 Honda Accord Plug In Hybrid

On at least 2 occasions the AEB was triggered when there was no object or vehicles present in the lane. The first observed incident occurred while on a highway onramp, the road in front was empty when the brakes suddenly engaged violently. The second incident happened on the highway. I was in the left lane, Adaptive Cruise Control was engaged, Lane Keeping Assist was turned off

NHTSA ODI 11454416

Concern was reported to dealership 2x. Sudden breaking on freeway at 55+ mph. Since June 2019, this has happened approx. 5 times. Most recently, Feb 2022, night driving approx. 55 mph on freeway suddenly rectangle breaking alert & sound on dash with car self breaking. There was a car 3 lengths behind and luckily didn't cause an accident. Each time, grateful there was no accident. 3 of the 5 times it was at night and 2 times during the day. 4 of 5 was 55mph and 1 time <45 (non-freeway) I believe the camera is getting confused with the lines/grooves on the pavement. This is dangerous.

NHTSA ODI 11454460

I regularly had issues with the automatic braking system. On 11/2/2020 I was driving on the highway and the braking system automatically engaged, causing me to swerve and hit a semi-truck. This resulted in a total loss to the vehicle and ongoing back pain.

NHTSA ODI 11453981

The contact owns a 2019 Honda Accord. The contact stated that while driving approximately 40 MPH, the Forward Collision-Avoidance Emergency Automatic Braking suddenly activated, causing the vehicle to abruptly stop in the middle of the road. During the failure, the brake light was displayed. The contact indicated that no other vehicle or object was present nearby to cause the Forward Collision-Avoidance system to be activated. The cause of the failure was not yet determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 30,000.

NHTSA ODI 11453990

The automatic break system activated for a fraction of a second several times, the breaking system alerted in the dashboard. The vehicle has not been addressed. It cause a scary reaction of driver.

NHTSA ODI 11454007

At two different times on a heavily traveled, high-speed road, the dashboard crash warning activated even though no other vehicle or obstacle was in the vicinity. The car did not slow a great amount or come to a stop; but had it done so, I could easily have been rear-ended by another vehicle. I have not asked that a dealer, independent service center, or Honda check this. Until recently reading of the NHTSA investigation, I assumed my car had experienced an isolated glitch that would be difficult to identify. The incident date entered on this report is not accurate. I do not recall the dates, which were sometime during 2020 and 2021.

NHTSA ODI 11454073

Vehicle will brake suddenly even if nothing in front. it has done this several times on the highway and feel this could be an accident hazard as it could brake suddenly and cause someone to rear collide the vehicle.

NHTSA ODI 11454145

While driving at approximately 40 mph, the automatic emergency braking system engaged and brought the vehicle speed to under 20 mph on a busy road. This issue occurs repeatedly on the same road and location. The road opens up to four lanes and goes uphill at the point where the braking activates. I have had this issue occur in multiple other instances, with several near rear end collisions.

NHTSA ODI 11453779

For more than the past two years I have been experiencing unexpected braking while driving my 19 Accord. There have been probably 20-30 random incidents....generally when I am changing lanes..I think? The braking lasts for 2-3 seconds and then all returns to normal. This has happened when other cars are near and when there is no other car ahead or behind. On at least a couple occasions I received a nasty horn from the car behind me due to my unexpected braking and more than once an uncomplimentary comment from my wife about my driving skill. Several times I feared being rear ended. I explained this braking action as my failure to use the turn signal when changing lanes. Upon reconsidering and after reading the recent NHTSA alert, this is a sensor/software problem in the ESC/Emergency Braking system. Please give this issue your prompt attention. I am the retired engineering manager of the braking system subsidiary of HONDA MOTORS.

NHTSA ODI 11453818

The contact owns a 2019 Honda Accord. The contact stated that while driving at 45 MPH with activated cruise control, the vehicle independently came to a complete stop as a brake warning light flashed on the instrument panel. Due to the failure, the contact was hit from behind by another vehicle. The air bags did not deploy upon impact. The contact suffered whiplash as a result of the crash; however, no medical attention was given at the scene. The contact spoke with a doctor and received a prescription for her neck pain. A police report was filed at the scene. The contact was able to drive the vehicle home from the scene but later had the vehicle towed to an independent body shop. The contact notified the manufacturer about the failure; the manufacturer denied that the failure was caused by a mechanical failure and believed the failure was caused by a driver error. The vehicle had yet to be repaired. The failure mileage was approximately 25,000

NHTSA ODI 11453842

Several times for no reason the AEP (Automatic Emergency Braking) light on my 2019 Honda Accord came on and the car started to stop. These events occurred in January-February 2022.

NHTSA ODI 11453870

Vehicle has suddenly stopped with nothing in front of it on several occasions. One time someone almost rear ended me.

NHTSA ODI 11453902

Brake light warning comes and with nothing in front or near me and on occasion it engages the brakes. Also the lane keep assist also goes off when I’m in the middle of a lane and going straight. I have had various electrical problems like this since week one of getting the car, and the dealer or Honda can never explain any of this

NHTSA ODI 11453935

This vehicle has a safety issue when it comes to snow on the ground and driving on a hill/incline. I was driving my vehicle through snow in the Ohio/WV region and when I tried to drive up a hill with snow on the ground the vehicle stopped. The vehicle would not accelerate and it seemed the engine just shut off. So I put the car in neutral and pushed the gas and I was correct the engine had no RPMs. This caused a huge safety issue to myself and the people driving near me. As I had ZERO control over the vehicle on an incline. The cars coming toward me and the ones behind me had ZERO issues with their vehicles going up this hillside. I tried three times to shut car off and back on so it would give me a few seconds of acceleration, allowing me to get up the hill a few more feet before shutting off again and possibly causing an accident. When I took it to my Honda dealer they stated computer showed no issues with the vehicle. And they have not heard of the engine shutting down or not having RPMs with snow on the ground. They recommended that I have tracking control off next time allowing me full control vs. the computer of the car however, I DID have it off. Once they heard that statement they informed me I have no other options. Honda did tell me when driving in snow other messages can go off and the car is still SAFE to drive. Which it needs to be as this area has tons of snow. However, that is not the case if the car just shuts off. Prior to the issue, the car kept beeping non stop with warning of break system & adaptive cruise control. My sensors were wiped off prior to the car shutting off. Yet again you can't keep a sensor spotless driving on a highway with snow. Two of the warning lights that showed on my dashboard were not listed in the manual. I am now afraid to drive my vehicle with any snow coming down. I have been a Honda owner since the 90's and I no longer trust this brand.

NHTSA ODI 11452997

Twice in the last 4 weeks ( 11/18/21 and 11/30/21) my 2019 Honda Accord came to complete and sudden stop for no apparent reason. My foot was on the gas, my speed was approximately 25mph, an orange warning light on the dash was activated very briefly. Cars behind me had to slam on their brakes to avoid hitting me. Going from 25 mph to Zero, caused my neck to snap forward and back and forward again which was very painful. The mileage on my car was approximately 6,650. This exact problem first occurred on 2/6/21. Subsequently, I took the car to the dealershipd where they performed and scanned the vehicle and no codes or error messages were found. Ran air fuel system test etc. and they advised me that no system failure was detected. I reported the incident to NHTSA on approxamately 2/10/21. My Complaint Number for the 2/6/21 incident is 11395658.

NHTSA ODI 11442365

On 11/30/21, I was driving approximatley at 25 mph when my car suddenly came to a complete stop for no apparent reason. My foot was on the accelerator, an orange warning on the dash flashed and my head and neck snapped. This is the third incident this year. Other incidents were 11/18/21 and 2/6/21. Both were reported to NHTSA. Complaint number for 11/18/21 is 11442365. The Complaint number for 2/6/21 is 11395658. I do plan to take the car to the dealer again for diagnostic tests even though the tests performed on 2/10/21 showed "no system failure was detected at this moment". I fully expect to be told the same thing regarding this incident.

NHTSA ODI 11442368

NOT ONLY DOES THE INFOTAINMENT SCREEN SOMETIMES BLACK OUT WHEN I AM NAVIGATING, BUT THE EMERGENCY BRAKING SOMETIMES KICKS IN ON THE INTERSTATE HIGHWAY WHEN THERE IS NO CAR IN FRONT OF ME OR NONE ON EITHER SIDE. I ALSO GET OCCASIONAL COFFEE CUP ICONS WITH A DRIVER ALERT SIGNAL EVEN WHEN I AM DRIVING IN A STRAIGHT LINE, YET CONSCIOUS OF THE NEED TO STEER A BIT TO TELL THE SYSTEM I AM ALERT. THE ALERTS HAPPEN AT HIGHWAY SPEEDS. THIS HAS HAPPENED QUITE A FEW TIMES. THE DEALER'S ONLY RESPONSE WAS THAT HONDA IS AWARE AND BLAMES THE PROBLEM ON USING THE CORD THAT MUST BE USED TO ACTIVATE CARPLAY AND THE NAVIGATION SYSTEM!

NHTSA ODI 11406354

I WAS ON THE FREEWAY GOING ABOUT 75MPH, WHEN SUDDENLY, MY VEHICLE'S CMBS SYSTEM ACTIVATED AND SLOWED DOWN SPEED TO 20MPH APPROX. WITHOUT HAVING ANY VEHICLES IN FRONT OR NEAR ME. LUCKILY, THE DRIVER BEHIND ME WAS NOT FOLLOWING CLOSE AND WAS ABLE TO AVOID A COLLISION BY SWITCHING LANES. I HAVE TAKEN MY VEHICLE TO THE DEALER TWICE, BUT NO ONE CAN FIND OR DUPLICATE THE PROBLEM. MOREOVER, A COUPLE OF WEEKS AGO, WHEN I WAS SWITCHING LANES, TOWARD THE RIGHT, THE LEFT WARNING LIGHT AND BEEPING NOISE CAME ON. SO FAR, I HAVE RECORDED NINE INCIDENTS WHEN THE VEHICLE SLOWED DOWN ON ITS OWN, AND FOUR OF THOSE WERE ON THE FREEWAY. I WAS FORCED TO DEACTIVATED ALL "SAFETY" SENSORS WHILE I AM DRIVING TO AVOID ANYMORE INCIDENTS OR ACCIDENTS.

NHTSA ODI 11405190

WHILE DRIVING, CAR AUTOMATICALLY APPLIES BRAKES. SPEED WILL SLOW ALL THE WAY DOWN, ALMOST TO A STOP. MULTIPLE WARNING LIGHTS DEALING WITH BRAKE SYSTEM WILL RANDOMLY POP UP, BUT ALSO LEAVE ON THEIR OWN JUST TO REOCCUR LATER ON. I JUST GOT THIS CAR A MONTH AGO WITH ONLY 19,XXX MILES.

NHTSA ODI 11404780

DASHBOARD SHOWS MULTIPLE WARNING FUNCTIONS THAT IS DISABLED IN THE VEHICLE SUCH AS LKAS, COLLISION MITIGATION BRAKING SYSTEM PROBLEM, ROAD DEPARTURE MITIGATION SYSTEM PROBLEM, BLIND SPOT INFORMATION SYSTEM PROBLEM, AUTO- HIGH BEAM PROBLEM, TRANSMISSION SYSTEM PROBLEM, PERFORMANCE MAY BE REDUCED, ELECTRIC POWER STEERING SYSTEM PROBLEM, ADAPTIVE CRUISE CONTROL SYSTEM PROBLEM.

NHTSA ODI 11399020

ON 02/06/2021, AFTER ENTERING A GATED RESIDENTIAL COMMUNITY, THE CAR SUDDENLY BRAKES FOR NO REASON. NO OTHER VEHICLES OR PEDESTRIANS WERE ON THE ROAD. WEATHER WAS OVERCAST. ROADWAY WAS DRY. SPEED WAS APPROXIMATLEY 27 MPH. NECK AND HEAD INJURY RESULTED. HONDA DEALER COULD FIND NOTHING WRONG AFTER RUNNING ALL TESTS. THEREFORE, THEY SAID NOTHIG WAS WRONG WITH THE CAR. I AM AFRAID TO DRIVE THIS CAR!

NHTSA ODI 11395658

ON THREE SEPARATE OCCASIONS, I HAVE BEEN DRIVING AND MY CAR HAS APPLIED EMERGENCY BRAKES FOR NO REASON. NO VEHICLES IN MY IMMEDIATE AREA, INCLUDING IN FRONT OF ME. ON THE FIRST AND MAIN OCCASION, I WAS IN THE LEFT LANE TRAVELING AT ABOUT 75MPH. MY CAR FLASHED THE EMERGENCY "BRAKE" NOTIFICATION ON THE DRIVER INFORMATION SIDE OF THE DASHBOARD, AND AUTOMATICALLY APPLIED BRAKES BRINGING ME DOWN TO ABOUT 50-55 MPH BEFORE THE WARNING WENT AWAY, BRAKES WERE RELEASED AND EVERYTHING PROCEEDED AS NORMAL. CRUISE CONTROL WAS NOT ON AND THERE WERE NO CARS DIRECTLY IN FRONT OF ME NOR NEXT TO ME. THE SUN WAS NOT RISING NOR SETTING, SO I DON'T BELIEVE THERE TO HAVE BEEN ANY SUN GLARE AFFECTING THE RADAR. I HAD THIS ISSUE AGAIN DRIVING AT NIGHT ON BACK ROADS. I WAS DRIVING ABOUT 35 MILES AN HOUR WHEN THE "BRAKE" NOTIFICATION APPEARED AND THE CAR AUTOMATICALLY APPLIED BRAKES, DESPITE NOTHING BEING IN MY LINE OF TRAVEL. AFTER THIS, I FIGURED OUT HOW TO DISABLE THE AUTOMATIC BRAKING AND CHANGE IT TO JUST A WARNING. THE THIRD TIME THIS HAPPENED WAS AGAIN DRIVING ON THE HIGHWAY. I DON'T RECALL MY SPEED, BUT NO ONE WAS IN FRONT OF ME. MY CAR FLASHED "BRAKE" FOR NO REASON BEFORE DISAPPEARING. I DO NORMALLY GET THE "BRAKE" NOTIFICATION WHEN I AM APPROACHING A SLOWED VEHICLE, BUT I DON'T GET AUTOMATIC BRAKING WITH THOSE AS I AM ALREADY APPLYING BRAKES. IN ALL THREE OF THESE CIRCUMSTANCES THERE HAS NOT BEEN ANYONE IN FRONT OF ME TO TRIGGER THE BRAKE WARNING.

NHTSA ODI 11389562

I WAS AT A RED STOP LIGHT ON A LOCAL STREET. IT WAS A CLEAR, SUNNY DAY. THE LIGHT TURNED GREEN AND I STARTED TO PROCEED. I WAS IN THE LEFT HAND TRAFFIC LANE (THERE ARE TWO LANES FOR A LEFT HAND TURN AT THIS SPOT). AS I PROCEEDED TO MAKE THE TURN, THE BRAKE MITIGATION SYSTEM ACTIVATED THE BRAKE. THERE WAS NOTHING IN FRONT OF ME. THERE WAS A CAR BEHIND ME AND TO MY RIGHT. I DRIVE A MANUAL TRANSMISSION SO THIS ACTION CAUSED MY CAR TO STALL. LUCKILY THE CAR BEHIND ME DID NOT HIT ME. I TRIED TO RESTART MY CAR QUICKLY. I HAD A HARD TIME RESTARTING THE CAR AS THE PARKING BRAKE MUST BE ON TO START THE CAR AS WELL AS THE CLUTCH DEPRESSED AND FOOT BRAKE PRESSED. AS THIS ALL HAPPENED SO QUICKLY AND I DID NOT EXPECT THE CAR TO STALL FOR NO APPARENT REASON. I DO NOT LIKE THE MITIGATION SYSTEM AS YOU HAVE TO TURN IT OFF EACH TIME YOU START YOUR CAR. FOR A CONSCIENTIOUS DRIVER YOU DO NOT NEED THIS SYSTEM. IT IS ONLY A BURDEN AND A HAZARD. I CALLED A LOCAL DEALER TO ASK ABOUT SHUTTING THIS SYSTEM OFF PERMANENTLY AND THE ADVISOR TOLD ME SHE HAD A HONDA THAT DOES THE SAME THING AT A CERTAIN ROAD SHE DRIVES WHERE THERE IS A DIP IN THE ROAD. PLEASE CHECK TO SEE IF HONDA IS HAVING A PROBLEM WITH THE MITIGATION SYSTEM.

NHTSA ODI 11377478

TL* THE CONTACT OWNS A 2019 HONDA ACCORD. THE CONTACT EMAILED HONDA OF COVINGTON (100 HOLIDAY SQUARE BLVD, COVINGTON, LA 70433, (985) 892-0001) BECAUSE THE TIRE PRESSURE MONITORING SYSTEM INDICATOR ILLUMINATED. ON SEPTEMBER 11, 2019, WHILE DRIVING 35 MPH, THE AUTO BRAKE SYSTEM SUDDENLY ENGAGED AND STOPPED THE VEHICLE. THERE WERE NO VEHICLES IN FRONT OF THE CONTACT AT THE TIME OF THE FAILURE. THE DEALER WAS EMAILED AGAIN REGARDING THE FAILURE. LATER, THE VEHICLE MOVED ON ITS OWN IN REVERSE FROM A PARKED POSITION AND STRUCK A NEIGHBOR'S MAILBOX. THERE WERE NO INJURIES. THE MANUFACTURER WAS CONTACTED AND ROADSIDE SERVICE TOWED THE VEHICLE TO THE SAME DEALER. THE DEALER STATED THAT THERE WAS $3,700 WORTH OF DAMAGE, BUT NO FAILURE CODES WERE LOCATED. THE CONTACT RESEARCHED AND FOUND NUMEROUS COMPLAINTS AND A LAWSUIT FILED AGAINST THE MANUFACTURER. THE FAILURE MILEAGE WAS 700. THE VIN WAS UNKNOWN.

NHTSA ODI 11278412