Automatic Emergency Braking Problems of Honda Odyssey - part 1

Suddenly one day in the morning taking my car from my garage, all alarms in my board turned on and stopped working: automatic emergency braking, blind spot warning, forward and collision warning, lane departure warning, lane keeping assistance and rear cross traffic warning. I bring my car to the mclarty Honda service in little rock, ar. After calibration showed that I need a new multipurpose camera code u 3000-49. This is major concern for me. My van is in perfect shape, only 7 years old not so many miles. Doing some research sounds like this is an issue with Honda vehicles. My neighborhood is full of kids ( I have 3 kids too)with these large vehicles you can find a lot of blinds spots and these features help to keep everybody safe. I believe this a safety issue that need to be recalled in Honda's cars.

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All of the alarm lights are going on at once, immediately when the car is turned on. This includes the collision mitigation system problem, adaptive cruise control system, lane keeping assist system (lkas), break system. I am told by my local garage that it is a Odyssey radar system failure, that probably originates in the camera or computer, but that they cannot fix it or get parts for it. It is unclear if these systems work or not.

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The windshield monocular camera failed, disabling all safety precautions.

All of the warning lights shows up on the dash board. Honda told me it’s related to a bad multi purpose camera. None of the safety features or cruise control will work until the camera is fixed.

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My van is braking when there are no cars or dangers in front of it. Sometimes there's a metal plate on the ground or speed bump when it brakes. Other times there's nothing in front. The car slams on the brakes and I cannot override it with the gas pedal. This puts my kids and I in danger of being rear-ended. This most commonly happens around 7:30am or 4pm when I'm taking kids to school or dropping off. I'm often in the carpool like or headed to the school when the car slams on the brakes. It's very frightening. The dealer cannot find an issue and cannot replicate the problem.

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I was at a 4 way stop on a quiet street, I stopped and then proceeded to move forward. As I was moving forward, in the middle of the intersection, the automatic emergency braking system activated which slammed on my brakes, involuntarily, in the middle of the intersection. There were no hazards in front of me that the vehicle would have detected as being a cause for braking. Thankfully, no one was coming through the intersection at the time from the perpendicular sides or else I would have been hit. The braking was so forceful that it caused my phone, that was sitting in my lap to be flung to the floor and was ripped from the charging cord with force. Additionally, to show the force, I had books sitting on the passenger seat that all got thrown to the floor with the impact of the braking system.

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Multi-purpose camera unit internal electronic failure. Front-facing camera mounted in the windshield. This caused several warning lights including the brake system warning light to illuminate. This failure caused the automatic brake system and other safety features in the car to turn off. The vehicle has been inspected by a mechanic. There were no other warning signs.

I was involved in an accident with with my family. Pregnant wife and daughter. I got into a front end collision and I was at fault. The forward collision warning didn’t activate, neither did the automatic emergency braking. This system has never failed on me and car has always stopped every time. .

My wife was driving our 2025 Honda Odyssey on [xxx] on a neighborhood road around [xxx]. She came to a stop sign and stopped to turn right. Upon accelerating to turn right, the emergency braking system activated slamming on the brakes and bringing the vehicle to an immediate stop. There were no other cars, pedestrians or other obstacles with any line of sight. The sudden stop caused her to whiplash hurting her shoulder. We brought the vehicle to joyce koons Honda of manassas. They downloaded the data and confirmed that the emergency braking system had activated but there were no reason codes given. They couldn't find any other issue and test drove the vehicle for 10 miles with no incident. My wife was really shaken up by the incident and refuses to drive the car until an actual cause is found and fixed. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Hello, my front collision camera is not working and I am getting all sorts of safety related error codes. I took it to Honda for an evaluation and they told me I would need to $1300 to fix part number 36160-thr-a74. As of now all the safety features have been disabled. These are the codes I am getting: adaptive cruise control automatic emergency braking blind spot warning forward collision warning lane departure warning lane keeping assistance.

On September 1, 2025 the front windshield camera on my 2018 Honda Odyssey failed, part #36160-thr-a03-m1, resulting in the loss of many of my vehicle’s safety features including: adaptive cruise control, emergency braking, forward collision warning, lane departure warning and lane keep assistance. The camera is available for inspection. Now when I start the vehicle it displays warnings that none of the above safety features are functional. I contacted 2 local Honda dealers, bellingham Honda and burlington Honda in washington state. Both dealers said they could not fix my car since the camera is not available, since it is not in stock and on national back order, with no date of when a new camera would be be available. I have also contacted 2 online Honda parts distributors and they also say the camera is in national back order and not available, with no date of when it would be available. The result is that my vehicle has most of it’s safety systems inoperable and it can not be repaired, since a new camera is not available, and Honda cannot provide me a date when the part is available and my vehicle can be fixed. I see on the internet the front camera failure is a common occurrence in 2018 Honda Odyssey’s and request NHTSA investigate make Honda recall these vehicles to fix the safety problem.

The automatic braking system beeped alert then applied brakes when I was going around a sharp curve, with cars behind me. Luckily they were far enough behind that they didn't hit me. This has been happening since I first got my Odyssey. I asked the Honda dealer about it if it was a defect and they said no that's how it work. I asked if I could turn it off permanently and they said no - I had to turn if off each time I turned on the car. Which I do most times but I forgot yesterday. I started turning it off regularly when it slammed on the brakes going around a curve some time ago bringing me to almost complete stop with car behind me. I probably should have reported earlier. I was in the car with a friend yesterday when it happened and she has a different model Honda and says it happens to her as well. I also am in a Odyssey facebook forum and someone with a 23 Odyssey is experiencing it - I thought perhaps it was my year and they'd work out the kinks but it does not appear so. I was willing to give Honda a little grace on these early safety systems, but this looks to be an ongoing problem which is unacceptable. I'm going to look into a dashcam to record these incicdents. I asked the dealer because surely they would be able to see a log of when they automatic braking engaged? if not, they should.

Vehicle applied brakes for no reason. Lost ability to see reverse camera during backing up. Half of the instrument cluster went dim to become barely visible. Radio screen freezes randomly. Engine cuts out or shudders intermittently.

1. Vehicle information year / make / model: 2018 Honda Odyssey touring mileage at time of incident: approximately 123,952 miles purchased new or used: used 2. Incident summary on June?13,?2025 upon starting the vehicle for the first time that day (vehicle is garage kept, year round, at home when not in use), problem codes for the auto high beam, adaptive cruise control (acc), lane keeping assist system (lkas), collision mitigation braking system (cmbs), and road departure mitigation (rdm) showed on the display and all features failed to function. 3. Detailed description of failure & safety risk (chronological) component/system affected: I have not taken the vehicle to the local Honda dealership as yet as I plan to schedule an appointment during the week of 17 August. After researching this issues it is found that many other consumers have experienced the same issue and confirmed that it was the adas front-facing camera and radar sensor failure. Due to the failure this causes the following safety systems to cease functionality: auto high beam, acc, lkas, cmbs, and rdm. Vehicle is available for inspection upon request. Safety risk: all affected systems are critical for maintaining lane position, speed, collision avoidance, and visibility. Not having these critical safety features creates a heightened risk of collision or unsafe maneuver. Inspection: only an authorized Honda dealer will inspect/diagnose the issue. There has been no inspection from the vehicle manufacturer, law enforcement, insurance, or independent service.

While driving approximately 40 mph, the vehicles emergency avoidance system activated and applied the brakes very heavily. We were nearly hit by a vehicle behind us, which nearly caused multiple accidents. There was nothing in front of us, and the road was CO. Pletely clear in front of us.

My Honda's multipurpose camera system has failed without warning or apparent cause. Upon starting my vehicle, I now receive multiple alert lights indicating simultaneous failures in critical safety systems including: adaptive cruise control (acc) lane keeping assist system (lkas) collision mitigation system road departure mitigation system auto high beam functionality occasionally, all the system failure alerts go away. According to my local Honda dealership, this represents an "internal failure" of the multipurpose camera unit (code u300-49). The dealership wants >$2,000 to fix the issue that appears to be a widespread known problem. There was no warning before the complete system shutdown, and all safety features connected to this camera are now non-functional.

My car unexpectedly did a phantom brake at high 60+ mph with no car in front of me. I was so nervous due to car behind me almost colliding into me.

The multipurpose camera has an internal failure at 105 thousand miles. This controls the automatic emergency braking, lane keep assist, adaptive cruise control, lane departure warning, and more. This safety features such as emergency braking, lane keep assist, and lane departure warning are important safety features. All of these features help drivers avoid collisions by acting to correct or avoid collisions or accidents faster or earlier than drivers can react. The Honda dealership service department has confirmed that the multipurpose camera had an internal failure, but did not provide a reason and there was no inciting incident during driving or ownership that caused this. The Honda dealership service department has been inspected and diagnosed that the multipurpose camera had an internal failure. No, there were no warning lamps, messages, or other symptoms of the problem prior to the failure. They only appeared after the failure, and the failure happened without warning. The failure first appeared on July 7th, 2025.

My car have never in an any accident but my distance radar sensor not working. And it’s very risky to drive under this condition and it’s very big safety for me and my life so help me to fix this issue.

The multipurpose camera failed bring down all driver assistance functionality including lane keep assist, emergency brake, auto high beam, parking sensors, cruise control, etc. Fix is outrageously high $2500+. Internet search finds this to be a very common issue and deserves a recall.

The automatic emergency braking and forward collision warning will occasionally go off when there are no vehicles or obstructions in the way. It will often cause the vehicle to brake and make the driver act to keep the vehicle in lane or from another vehicle from rear ending you.

This is regarding the collision mitigation braking system (cmbs) I will be driving on side streets around town (driving kids to school and daycare) and there will be no vehicle/obstacle near me/ in front of me and my van will flash on the dashboard "brake" and then it slams on the brake. This has happened at least 5-6 times as of todays date 5/20/25. There is no warning or reason for the car to brake like this. I have brought this to the Honda dealer two times now once I realized how serious this was. I was informed that since it isn't throwing a code there is nothing they can do. This is a serious safety risk not only to myself but to my children- this is a van so most people who drive this have small children. The last two incidents I was inches from being rear ended with my children in the car. The time before that I had my family from out of town in my car, that could have been eight people seriously injured or killed for no reason.

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Without any notable prior messages or symptoms prior to the failure, on [xxx] after dropping off the kids at school and then turning on my 2019 Honda Odyssey ex-l (28,170 miles), the "brake system" light was on and the following 5 dashboard warning lights/messages turned 1) adaptive cruise control problem, 2) lane keeping assist problem, 3) collision mitigation system problem, 4) road departure mitigation system problem, 5) auto high-beam problem. The advanced driver assistance systems no longer works, and it becomes unknown to the driver whether the "brake system" light is being triggered only by the collision mitigation system problem, or an additional problemch as the anti-lock brake system not working. While no accidents occurred, the warning lights add unneeded driver anxiety, which can contribute to a potential safety impact. The problem has been confirmed by the san leandro, CA Honda dealer to be error code u3000-49. Dealer diagnosed problem as "multipurpose camera / millimeter wave radar internal circuit failure" and recommended to replace the multipurpose camera and perform aiming. Dealer advised that safety features will not work. The diagnostic fee was $179. 10, and the repair fee was quoted as $2456. 55 the vehicle or component has not been inspected by the manufacturer, police, insurance representatives or others. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Vehicle make/model/year: 2022 Honda Odyssey date of incident: 5-1-25 mileage at incident: 30,000 summary of incident: while my 2022 Honda Odyssey was fully stopped in traffic with my foot firmly on the brake pedal, the vehicle unexpectedly lurched forward and struck the car in front of me. Just before or during the lurch, the brake system warning light appeared on the dashboard. I did not have my foot on the accelerator at any time. The road was flat and weather conditions were normal. The idle stop system has not been functioning for several months, so the vehicle was operating in normal engine-on mode. Despite this, the car surged forward from a full stop, indicating a possible failure in the brake system, electronic throttle control, or a software/ecu malfunction. This was a dangerous, uncommanded movement of the vehicle while stopped, which resulted in a minor collision. Thankfully, no one was injured, but this poses a serious safety hazard, especially if it were to occur in crosswalks or at intersections. I will report the issue to Honda the dealership and requested a full diagnostic inspection. I am submitting this complaint because this incident could have caused serious injury or worse and may be part of a broader defect affecting brake or throttle systems on this model.

Front facing camera went out on a 2020 model. Several warning lights appear related to lane assist, front collision warnings, and automatic emergency braking. These safety features are important, and Honda should issue a recall. The camera is around $800 to replace, plus another $800-$1000 to install and calibrate. Car is only 5 years old, and there have been other camera/electrical related problems, and many recalls. Please hold Honda accountable to fix their declining reliability issues.

The vehicle automatically brakes when approaching a small bridge crossing that had a slight 2 inch lip from pavement to bridge concrete , it also tries to alert of a collision when going around a slight curve when a vehicle is passing .

I was driving my vehicle and accelerating. My vehicle suddenly braked with no warning while I was driving. I hit my left side of my head as I was not expecting this to happen. I was nearly rear-ended/nearly caused a multi car accident. It was incredibly scary to have the cmbs go off for absolutely no reason. There was no car ahead of me or other reason for it to happen.

See all problems of the 2024 Honda Odyssey 🔎.

Bcm software is out of date or not programmed correctly, car turns off while driving. When park and off and the keys are away, car tries to turn on by itself. Power lost while driving.

Multiple warnings regarding adaptive cruise control, lane keep assist, and lane departure warning problems. Honda says it is the front multi-camera. The vehicle works fine intermittently, but doesn’t more often than not. Issue started to occur shortly after a wiring harness recall.

It started that all the sensor in our car started to go off. We were told we had a bad battery, even thought we had replaced it new just last year. Once we had the battery checked and alternator. The sensors started to act up again, out tail gate started to malfunction. Wouldn’t automatically close. A few weeks ago driving down the road the tail gate opened and the anti theft system started going off while the car was running and still going. Come to find out there is a water leak in the rear that has gotten into the rear fuse box and has cause substantial corrosion. The latch to the tail gate is broken. Honda is telling us our extended warranty doesn’t cover any of this, even though it is common knowledge, that the water leak is a known problem from 2018-2021. We just found out a few days ago.

The windshield monocular camera is completely non functional causing several dashboard errors to appear. It very disheartening as this is such a known issue within the Honda Odyssey community and very expensive to replace and get calibrated after replacement. This should be recalled since so many are having this issue. Clearly this is a fault of Honda. It seems that the camera can get too hot being in the windshield and just doesn't work. A big reason why I wanted this vehicle was because of these sensors. Now I can't use them.

Front facing camera malfunctioning, and it is available for inspection upon request. This malfunction causing 5 different warning lights to show up on dashboard. Including 1. ) auto high beam problem, lane keeping assist problem, collision mitigation system problem, adaptive cruise control problem, road departure mitigation problem. The issue has been confirmed by the dealer. There were no warning lights prior to the random malfunction. I have not had wind shield replaced (which I have read could mean a calibration of the camera issue), nor has there been any accidents taken place. My safety is at risk as I am unable to use these features while driving unless the front camera is replaced.

When starting my van, I got warnings for acc, lane departure, and collision mitigation stating that the issues were broken. I received error code u3000-49 at the Honda repair dealer which stated the multipurpose camera no longer works. In doing my research, it appears this is a known issue that Honda is not taking responsibility for and charging $1,500 to $2,000 to repair. They state the car works fine other than having none of those safety features working.

It first started with the power tailgate failure which I brought it to Honda who are aware that there is a faulty sealant that is causing water to get into these Odysseys. They refuse to fix the issues and they are very costly. My van has never been in an accident. Now I'm getting all sorts of warnings from the adas system. Honda has refused to fix their issues and I can not afford $7000 cost to get this cleared up. People who own these vans are complaining and no one is doing enough to get this recalled.

The multifunction forward looking camera in the top of the windshield developed an "internal fault" and either needs replacement or these safety features will fail to work. These safety features allow me to avoid accidents. The problem has been confirmed by the dealer. There are warning lamps that state that these features are no longer working.