All ADAS systems have to be turned off. Even if switched to alert only the vehicle will randomly break very hard while driving. Also will randomly not allow you to back out of your garage. Or when raining will not allow you back up.
2024 Honda Prologue driver assistance complaints
Page 5 of 7: complaints 101 to 130 of 168, newest first, as owners wrote them.
Braking for no reason slam on the breaks so hard we all got so scare. Also the rear brakes engaging with no obstacles on the way.it felts like I hit something. took to the the dealer of purchase and very much make me field like I was insane. and what the technician did was turning off the automatic breaking system. that was the solution. now at when I turn right of left it makes a ticking noise on the suspension. started at 4k miles. plus a win noise is so heavy that I need to the radio volume. I got this car because of the automatic breaking technology offer, but I can't utilize it do to the failure of the system.
All ADAS systems have to be turned off. Even if switched to alert only the vehicle will randomly break very hard while driving. Also will randomly not allow you to back out of your garage. Or when raining will not allow you back up.
On 2/16/2025, I was slowly (maybe 5mph or slower) backing out of an Electric vehicle charging stall. Rain was falling lightly. The AEB system activated more than five times in a span of 60 seconds. The vehicle thought there was an obstruction in my path, even though there was no vehicle behind me or in front of me. There was a vehicle that was parked in the other stall charging.
Very frequent and sudden breaking when no objects or any moving vehicles in the line of sight. This keeps happening and I am not able to use the safe system as is without turning it off
I've had to turn off all the safety features in my car on multiple occasions. I nearly got hit by several cars turning into driveways because the car's sensors detected a vehicle on the driveway. Additionally, the sensors mistakenly detected another car pulling out of a shopping center, which caused heavy brake locking. This has even happened to me twice on the freeway. When I mentioned this to the service manager, he laughed and said, "I know what you're talking about. I have one too, and it happens to me as well. Unfortunately, there's nothing we can do about it except turn off the sensors." And be careful with your neck the ways brakes lock in
Car braked extremely hard causing whiplash twice even though there was ample room. This has happened multiple times. Reported that it is normal by dealership
I have had my prologue for about two months now and have noticed that I receive a warning about reduced acceleration "randomly." I say “randomly” because I’ve observed that it appears during two specific situations. I get that warning whenever I’m low (less than 20%), so this is not random as it seems consistent. The other time this occurs is when I am driving or just starting my car (the battery percentage doesn’t matter, as it happens when it’s between 30% and 80%. Also, it happens when the temperature is below and above freezing). However, the latter situation occurs randomly and seems to happen more frequently while driving, though it also occurs when I am just starting the car. On top of that, the Forward Collision Warning system is extremely sensitive and has caused the car to brake hard unnecessarily on me with and without Adaptive Cruise Control enabled. Sometimes it even warns me of something that isn't even there.
The car makes a clicking noise when I make sharp turns, most co.monly to the left. It is brand new with only 2320 miles on it. The noise started within the last few weeks. The rear breaking system locked up the brakes and turns the emergency break on, when backing up, even if nothing is behind me. Once it was rain drops dripping off of the rear window. Another time, nothing was there. I had to assume that it picked up a shadow in the driveway.
The vehicle's backup sensors exhibit excessive sensitivity when reversing from a garage or parking space. My vehicle engaged the emergency brakes automatically despite the absence of nearby cars or pedestrian obstacles.
While approaching a red light on a busy road the forward alert triggered and auto breaking was engaged with no vehicle in front. Almost resulted in an accident. Had the light not been red other cars near me may not have been breaking.
I have encountered recurring problems with the vehicle's automatic braking system, as well as issues with the Honda Prologue app, both of which I believe compromise the vehicle's safety and performance. The vehicle's automatic braking system appears to be malfunctioning, as it has activated unexpectedly on multiple occasions, leading to near-miss accidents. At least three occasions, the vehicle’s brakes have engaged without cause, even in situations where there is no obstruction or “phantom” vehicle detected. This automatic braking has not only been inappropriate but also posed a significant safety risk to both myself and other road users. Additionally, the reverse braking system exhibits similar issues, activating without cause. Despite the alerts being on and the brakes not being engaged, the system’s warning signals still activate, leading to further confusion and potential danger. I have consulted with both the dealership and the Honda Prologue forum, and it has been confirmed that this is an ongoing issue. The dealership has indicated that they have no immediate workaround or solution. The only remedy has been to disable these safety features entirely, which negates the very purpose of having them. The Honda Prologue app, which is intended to provide critical vehicle information and allow remote monitoring and control, is also malfunctioning. I have been in communication with Honda for over two months regarding these issues, but unfortunately, no viable solution has been provided. The app is essential for monitoring vehicle functions such as theft prevention, charging status, and temperature control, all of which are key safety and convenience features. In particular, I am concerned about my ability to monitor the vehicle’s charging especially given the increasing number of incidents involving electric vehicles catching fire during or after charging. Proper monitoring of charging status is crucial to avoid potential overcharging and battery degradation.
As others have reported here and elsewhere online, my Prologue emergency braking/collision detection system repeatedly activates when there is no danger of a collision. Backing out of my driveway I can expect that 25-50% of the time the car will slam on the brakes for no reason and apply the parking brake, which I then have to disengage manually to continue backing out. More recently, I was driving 30 mph on a city street with no one in front of me when without warning the Prologue slammed to a complete stop. Fortunately no one was behind me or I almost certainly would have been rear-ended. After four months of owning the Prologue, and seeing this exact problem reported over and over again, it's evident the entire electronics system is glitchy at best and downright dangerous at worst. Everything from the crash-avoidance cameras (regularly issues messages that they're blocked when they're obviously not) to the remote starter (supposed to come on with two quick presses of a button on the fob, but often takes a dozen or more to actually activate) is borderline non-functional. Whether this is a software or a hardware problem, or some combination thereof, there's no question in my mind that sooner or later, as more of these vehicles are on the road, one of these malfunctions is going to cause a crash. I hope the federal safety agency will see enough of a quorum of similar complaints to investigate before that happens. For my part, I've turned off all driver assist systems in my Prologue, which is the only way I can be assured the car will only brake when it should. Additionally, again as many others have reported, my Prologue knocks somewhere in the vicinity of the front axle whenever I corner sharply enough in either direction.
Twice, a "service high voltage" error light has come on and it has said it impacts the ADAS and safety systems and the acceleration of the vehicle. The light disappeared after a short drive, but the heating system stopped working. The first time, we took it to the dealership and they reset the system and the heat came back a little, but seems to struggle under 32 degrees, and especially sub 15/20 degrees. The second time was this morning - the heat is barely working at all. Very frustrating for a vehicle under 2000 miles.
when turn i hear a clicking sound dealer technician acknowledges sound but refuses to repair. forward collision system sees things that are not there and slams on the brakes for no reason. hvac system fails to heat until after driving for at least 45 minutes even after pre heating.
On several occasions while in reverse the car braked hard and violently for no reason. This caused a sudden jolt to me and the passengers endangering our safety. Also, this condition can cause an accident if I’m trying to back up to avoid a collision and the emergency braking system does not allow me to do such. The vehicle has not been inspected by anyone else and no warning lamps messages or other symptoms of the problem appeared prior to the incidents. This condition first occurred with about 300 miles on the vehicle.
Unknown braking while no objects in front or behind the car. Warns lane departure too late after you crossed halfway through the lane.
1. When I turn my car either left of right there is a huge noise under the hood at the joint like a cracking noise. It is very concerning and doubt that some thing big is broken. I got to know in the forum that almost all the cars are having this issue. 2. When using my HondaLink app to unlock the door, sometimes the app has issues sending the signal to the car. This is a safety issue because in the event I lose my keys I will be locked out of my vehicle or in the even of an emergency when I need to access the vehicle quickly.
When the vehicle is in reverse, the safety feature that is supposed to prevent you from hitting something mistakenly goes off when there is nothing there. It seizes the car and immediately causes the brakes to go off. The car will feel like it got in a crash. There is no way to un-release it and there is no way to change the settings to prevent it. It is a great safety feature that could really protect me from getting into a crash. But instead at least once or twice a week it simply prevents me from backing out of my driveway in the morning to go to work. Delaying me by 1-2 minutes every day. Very annoying.
Uknown braking while no objects in front or behind the car. Warns lane departure too late after you crossed half way through the lane.
While backing up car will stop abruptly for no apparent reason. This has occurred several time and each time it occurs I think I hit something. It it very annoying and possibly dangerous if car abruptly stops while backing up.
The automatic emergency braking (AEB) system or collision avoidance feature in my 2024 Honda Prologue has malfunctioned. The car abruptly applies the brakes when backing out of my driveway, and also engages when driving forward and getting too close to other vehicles or when changing lanes, even when there’s sufficient space. The braking is sudden and forceful, making it difficult to control the vehicle. This issue poses a serious safety risk, as the car’s automatic braking can cause me to be rear-ended by vehicles behind me when stopping unexpectedly. The system may also cause a collision when changing lanes, as the sudden deceleration could lead to a crash. The problem occurs consistently, and can be reproduced each time I back out of the driveway, approach a vehicle too closely, or change lanes. The vehicle has not been inspected by the manufacturer, dealer, or insurance, and I have not yet brought it in for service. I am filing this report to document the issue as a potential safety concern. There are no warning lights or messages on the dashboard when the issue occurs. The braking happens without any prior indication from the vehicle, and I only notice after the fact that the system has engaged. This problem began right from the start, within the first 50 miles of driving the car. As of now, the car has about 5000 miles on it, and the issue continues intermittently.
On multiple occasions the forward collision warning and automatic emergency braking have engaged when there is nothing in the lane. On one occasion, the system engaged brakes very hard - which I can only assume was triggered by a pedestrian on a nearby sidewalk. I was traveling 30mph and the vehicle came to an abrubt stop. Traffic behind me was then also forced to slam on their brakes and I feel this could have easily lead to a collision if the driver behind had not been attentive. On another case the vehicle engaged brakes while traveling at 60mph on a two lane highway. I was traveling straight, approaching a rightward bend in the road. My steering wheel was still straight ahead because I had not yet reached the turn. Meanwhile a vehicle was coming the opposite direction around the bend. I believe the system engaged because I was steering straight toward the other vehicle - not taking into account the fact that my lane would bend before reaching it. In this case the system did not stop the vehicle but it did cause a rapid change from 60mph to 40mph in a section of road with no obstructions where neither myself nor drivers around me would expect my vehicle to slam on the brakes. Had the surface been slick such a maneuver could cause loss of control. Again - had drivers behind me not been attentive - I could have been rear ended.
Suspension Related Issue: CV Axel Joints causing clicking, which is the most common issue among users of this car. Apparently the Driveshaft needs to get replaced as well. I got the right side done as the car was pulling to the right before the replacement, but the other part is on back order with no ETA. Been driving this way since October 2024. So I will believe for now that it's safe to drive the car as per dealer's recommendation to do so. Braking: The One Pedal feature turns off at random when starting the Car. Almost got into an accident not knowing it was off. Dealer cannot replicate the issue, but it happens to me randomly. It's to the point I have to check that first before operating the vehicle. Could be the memory of the vehicle not retaining the settings. Blind Spot Warning: The sound notification has recently turned off and is no longer working. Needs to be inspected by Dealer. Off-topic: Some Dealers only have 1 certified technician to work on the car. You're at the mercy of their availability when something needs to get fixed.
Regularly slams the emergency brakes when reversing out of the driveway when there is nothing there to warrant an emergency brake Additionally, it will not release the brakes for several seconds. I feel this could leave me stuck in the middle of the road and vulnerable to getting hit by an oncoming vehicle.
While driving on the highway with no one in front of me, the car unexpectedly slams on the brakes. This issue consistently happens at a specific part of the highway where there is oncoming traffic and a slight incline. It seems like the sensors may need to be reconfigured. Additionally, when backing out of my driveway, the car struggles with snow or ice. It mistakenly detects an object behind me and automatically applies the brakes. To override this, I have to hold the gas pedal. It also doesn’t handle ice reflections well.
The automatic emergency braking system that works with the rear cross traffic warning is not functioning correctly. It is available for inspection upon request. The braking system brakes when reversing even when the way is completely clear. Its as if it sees a shadow and hard brakes. The jerking motion feels like you hit another vehicle. The problem was not reproduced when i brought it to the dealership but the service center did acknowledge it's an issue but there isn't any fixes available at this time. There were no indications for this issue prior and the only way to avoid this is to turn this safety feature offf.
When backing out with ZERO obstacles or things in either direction the car will suddenly come to a violent stop. Had to turn off rear safety camera braking system, as it is useless and dangerous.
Received multiple alerts including "service high voltage system", "service vehicle soon", and "cannot charge". The vehicle also reduced speed and function, which could have resulted in reduced driver safety. Vehicle will be brought in for service to determine cause.
With reverse alert and notifications on, the vehicle violently brakes when there is nothing in the way
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