Automatic Emergency Braking Problems of Acura MDX - part 2

On two separate occasions (December 2022 and April 2023), the collision mitigation system (cms) of our 2020 Acura Mdx improperly engaged. On the first occasion, the cms abruptly engaged the braking system without warning. There was no car in front of the car, but there was a car in a turn lane to the right of the car. There was no reason for the system to engage. Both the driver (my wife) and the passenger (daughter) reported back pain from the incident. The driver received physical therapy for the event. The dealer (gary force Acura) and Honda America were notified. The dealer examined the car and found no issues or failures. On the second occasion, the car was changing lanes at a slow rate of speed while approaching an intersection and a stopped car well in front of the Acura. The cms again abruptly slammed on the brakes in a manner not corresponding with the risk or danger of the situation. A collision with the car behind our car was fortunately avoided by the driver of the other car. The violence of the braking system caused damage to the braking system. No injuries were incurred. Again, the dealer and Honda America were notified, and the car was again examined. No issues or failures were identified outside of the brake repair. On both occasions, individuals were put at risk. The dealer was not able to reproduce the problem. The dealer said a cms warning to brake should have come on before the cms engaged. On both occasions, no warnings were observed until the actual braking event started. We are not comfortable driving the car, particularly with a student driver in the family. In most cases, we turn the cms off before driving the car. The intent is to dispose of the car due to concern associated with the cms.

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-alerts for all safety systems going offline appeared. Also said awd is not working. Car would turn off with on push of ignition. -tailgate went haywire. When opening it just went up and down and halfway. Had to push it close both issues went away, for now, after several restarts.

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The contact owns a 2020 Acura Mdx. The contact stated while driving approximately 40 mph, the collision mitigation braking system inadvertently activated. There were no warning lights illuminated. The contact had since deactivated the collision mitigation braking system. The contact stated that the failure recurred several times. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 19,725.

All warning lights came on dashboard. Car wouldn't turn off.

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The contact owns a 2016 Acura Mdx. The contact stated while driving approximately 70 mph, the inadvertently slowed and decelerated to 30 mph. The brake alert warning message was displayed. The vehicle was not taken to the local dealer. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 65,000.

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My fcw/auto-brake settings are all set to minimum interference. In approaching a left turn (via green arrow) the car in front of mine abruptly stopped, and immediately moved again. I stopped, just as the system did. It however, held the brake for 2-3 seconds and I was almost rear-ended by the person behind me for not moving again with traffic. The following has happened at least 3 times: on a 2-lane curvy road the fcw has abruptly engaged the brake for an oncoming vehicle when we are both in our own lanes.

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This morning I read that you were investigating the automatic braking for certain Honda models. I have had this same thing happen with my 2017 Acura Mdx several times over the past few years. I would be driving (not following another car), and my car would suddenly brake and flash "brake" on the screen, without my doing anything. Both times, I attributed the issue to driving into a bright sun, but I am not sure. It did not cause an accident and it was not a big deal, but the last time (about 3 months ago) I remember braking and being nervous about someone else read ending me. . . When I tried to accelerate I was unable to do so.

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The contact owns a 2019 Acura Mdx. The contact stated that while driving approximately 65 mph, the forward collision-avoidance automatic emergency braking suddenly activated causing the vehicle to abruptly stop in the middle of the road. During the failure, the dashboard warning lights and messages remained illuminated. The vehicle was taken to the local dealer who serviced the vehicle. No further information was available. The contact indicated that the failure reoccurred approximately three months later. The manufacturer was not yet notified. The failure mileage was 41,000.

2017 Acura Mdx purchased may 2020. Incidences has happened 5 times. Twice this month in July 2021 the brakes engaged! anxiety and fear of being hit by cars behind. 1st incident:location back road when the brakes engaged the vehicle in front had taken a right turn. The vehicle was cleared from mine so it came as a scare as it stopped in the middle of the road with others behind me honking…. . The brakes released and I proceeded driving. 2nd:location back road again in front a vehicle turned right and the brakes engaged. I hit the gas gently I dont know if that helped to disengage the brakes or not. 3rd: location highway brakes engaged and immediately released. I was in passing lane and a truck in middle lane …. . This made no sense. 4th: location at intersection truck turned left across and in front of me, brakes engaged and stopped my car, only to find out a low trailer was being towed. Brakes did help prevent an accident. Kudos earned here!!!! 5th: location back road speed less than 40mph vehicle in front of me turning right again my brakes engaged! again I used the gas hoping the brakes would disengage. I dont know if it helped or not. Now I only use the cruise control on highways.

At different times, either with my wife or I driving the vehicle, we will receive error messages on the dash indicating that various systems are inoperative. These involve the lane keeping assist system and the braking system. I also believe that the cruise control does not function when these messages appear.

While driving on normal road with no other cars around, the emergency braking system/forward collision activated and immediately stopped my car with no danger present. This resulted in the car behind me swerve to avoid hitting me in the rear. No warning lights were on the dash or no audible warning either. This seems to be a malfunction in the system.

Incident #2 driving down city street approaching an intersection. No car in front and no car behind. In the middle of the intersection the car auto brakes to a complete stop before releasing back to normal. If a car were behind me I would have most surely been rear ended.

Driving on the highway at about 80 mph and as I was rounding a band the car automatically started breaking with no cars in front of me. The car almost came to a complete stop before it out of alleviated the breaking and allowed me to continue to accelerate.