Honda Insight collision warning problems

Filed Aug 10, 2026 · Driver assistance · 42,500 miles · NY

The contact owns a 2022 Honda Insight. The contact stated that while driving at an undisclosed speed, the Forward Collision Avoidance system independently activated, and the vehicle shuddered abnormally. No warning lights were illuminated. The vehicle was taken to a dealer to be diagnosed; however, the cause of the failure was not yet determined. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 42,500.

Filed Jun 30, 2026 · Driver assistance · CA · crash

The vehicle unintentionally accelerated while pulling into a parking space. I was depressing the brake to slow down while making the right turn into the space. The engine suddenly revved up (as though you were depressing the gas and brake at the same time) and it accelerated forward (a though you suddenly released the brake while depressing the gas pedal) and the car lept forward, jumping a 3 foot long curb, striking the vehicle parked in front of me. The tires kept spinning as though the gas pedal was being depressed, even though the vehicle could no longer make any forward progress since it had run into the front of the vehicle parked in front of me. We’re it not for the vehicle in front, I feel that the car would have continued accelerating forward and could have caused injury or death to customers in the shopping center and/or damage to other vehicles or structures. The vehicle was towed and is currently in the body shop for repairs, but I don’t think this addresses my concern for the sudden acceleration. I don’t want to drive it in case the problem reoccurs and could cause further damage. I’ve reached out to Honda to see if I can tow the vehicle to their service repair center to try to diagnose the problem by reading data from the car’s computer, but they have not responded. I checked the floor mats and they were flat and properly installed. If I had mistakenly depressed the gas pedal (not likely as I was already braking as I approached the parking space), I would have thought that the collision avoidance system would have braked the vehicle. Airbags also did not deploy in either vehicle.

Filed Dec 25, 2025 · Driver assistance · OR

The Honda Sensing suite's CMBS uses a combination of a front-facing camera and a radar sensor, it detected a sewerage as a hole and steel plates as a hole and made a sudden unsafe stop. Collision Mitigation Braking System (CMBS™) experiencing a false positive. We were going to like 15-20 over the steel plate and it made an emergency unsafe stop. It keeps doing it over and over. At this point it’s becoming really unsafe so I wanted to report it. It stopped all of sudden and made my neck in pain as my wife’s back. No the problem has not been talked to the dealer or they never told me about this kinds of problems will happen. No any warning lamps.

Filed Sep 5, 2025 · Brakes, Driver assistance · WA

On [XXX] while driving my 2019 Honda Insight Touring at approximately 35 mph on [XXX] , the vehicle’s automatic emergency braking system suddenly activated without any obstacle present. The car braked very hard, creating a dangerous situation in traffic. This was not the first time it has happened. The same issue occurred on two separate occasions in 2022, also with no vehicles or obstacles nearby. Each time, the system engaged abruptly and without warning. I am concerned about the safety risk of the Collision Mitigation Braking System (CMBS) activating erroneously, as it could easily cause a rear-end collision. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 23, 2025 · Brakes, Driver assistance · 18,000 miles · NC

The contact owns a 2020 Honda Insight. The contact stated that after starting the vehicle, several unknown warning lights illuminated. During the failure, the brakes failed to function as intended, and the Lane Departure, Cruise Control, and Forward Collision Avoidance features failed to function as intended. The failure was intermittent. During the first failure, the vehicle was turned off and restarted after several minutes and the vehicle operated as intended. The vehicle was taken to the dealer and diagnosed with battery failure. The dealer also determined that the brake pedal simulator had failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 18,000.

Filed Jul 23, 2025 · Driver assistance · OR

On two (2) occasions, the "collision mitigation braking system" braked with no reason. It has happened on a quiet and straight line residential street with no other moving vehicle, pedestrian, animal, or any other obstruction in view. After one second or so of braking, it returned to normal. It is available for inspection. I have not spoken to the local Honda dealer about it, and there were no adverser repercussions. There were no prior warnings of any system malfunction.

Filed Jan 22, 2025 · Driver assistance · OH

On at least two occasions the automatic emergency braking system has activated with nothing in front of the vehicle. Several instances when cresting a steep rise in the road the forward collision warning system has activated the "BRAKE" warning light.

Filed May 12, 2023 · Driver assistance · 32,000 miles · CA · crash · 1 injury

The contact who is an attorney, called regarding the crash of a 2019 Honda Insight and another vehicle. The contact stated that while the Honda Insight driver was driving approximately 65 MPH with the Forward Collision Avoidance: Adaptive Cruise Control activated, the vehicle crashed into the rear of another vehicle. The contact stated that the Forward Collision Avoidance: Automatic Emergency Braking feature malfunctioned, and failed to prevent the crash. The contact stated that the air bags in the Honda Insight deployed. Unfortunately, the driver of the other vehicle died in the crash. The driver of the Honda Insight was arrested; however, there was no information regarding injuries being sustained. The contact stated that the driver was found to not be intoxicated and was not distracted while driving during the crash. The contact stated that the driver might have fallen asleep from exhaustion during the crash. The contact stated that both vehicles were towed away from the scene and the Honda Insight was deemed a total loss. A Police report was filed. The contact was unaware if medical attention was sought by the driver of the Honda Insight. The manufacturer was not contacted or notified of the failure. The failure mileage was approximately 32,000.

Filed Jan 21, 2023 · Driver assistance · NJ

Intermittently the car’s forward collision warning will flash and occasionally start applying the brake without any other vehicles or obstacles in front of me.

Filed Sep 29, 2022 · Driver assistance, Electrical · CA

My car was parked safely on my driveway. I turn on the car and all the lights came on including power loss failure, collision mitigation, etc. I had to tow it to a dealer where they claimed it was rodent damage causing an electrical failure on Monday, 9/19/22. The car was towed on 9/20/22. I was then told I was unable to claim any warranty. The dealer charged me $640.00 for the repair. They claim the wire harness was chewed on which caused the system failure. I ended up having to pay out of pocket instead of using my $500 insurance to cover the damages. (Insurance said it would likely raise my rates next if I continuously put a claim). I thought--one time incident, bad luck. The dealership refused to take photos of the chewed wires, but I was able to fight to receive some parts indicating the damage (who knows if it was actually mine or some they kept off of some other Honda--see attached photo). Not even 24 hours after having my car repaired to normal, I turn on the car in the morning and the same issues came up. I towed it again! The dealership claimed the rodent chewed my car in the same spot, at the same area. Charged me an additional $224.00 to solder it back citing that they never seen this happen before. I find it convenient that no other vehicles on this street had issues with rodent damage. And the same area was bitten twice. Why would Honda create such an easily accessible route for rodents or a non-covered protected wire? As a consumer, I end up fronting the bill because neither the manufacturer nor the dealership, nor the insurance company (who would likely end up raising my rates) have to deal with a terrible design. Never had issues with other brands nor other older vehicles had this issue in the cul-de-sac. Dealership ended up having wrapping the harness, but this car is NEW & should have been protected and repaired by Honda to begin with. Online search revealed Honda used SOY BASED insulation which attracts rodents. Very unsatisfied with Honda.