2022 Honda Accord Hybrid Driver Assist & ADAS Problems

The contact owned a 2022 Honda Accord. The contact stated that while driving 68-70 MPH, the vehicle stopped abruptly, causing another vehicle to crash into the rear passenger's side of the vehicle, and a second vehicle to crash into the rear of the vehicle, causing the trunk to be pushed inside the rear seats of the vehicle. The brake warning light was illuminated. The air bags of the contact's vehicle did not deploy. The air bags of the two other vehicles deployed. The contact stated that the rearview mirror separated and hit her head, causing a concussion. Additionally, the contact sustained whiplash, PSTD, and contusions on the back and on both ankles. The contact received medical assistance. The front passenger seat occupant of the second vehicle that rear-ended the vehicle sustained hip injuries, as the occupant was still recovering from a hip surgery that she had undergone prior to the collision. It was unknown whether the passenger received medical assistance. There was no property damage. A police report was filed. The vehicle was towed to Crash Champions, where it was totaled. The contact hired private investigators who retrieved the EDR data and informed the contact that the emergency braking system had engaged prior to the crash; however, the contact stated that there was no other vehicle or object around the vehicle at the time the emergency braking system had engaged. The vehicle was towed to the dealer, where the contact was informed that special equipment was not available to diagnose the vehicle based on the EDR data. The manufacturer was not notified of the failure. The failure mileage was approximately 37,600.

At approximately 9:20 a.m. on November 20, 2024 while driving at approximately 27 MPH the Collision Mitigation Braking System (CMBS) on my 2022 Honda Accord Hybrid activated, bringing my car to a near halt while driving on a clear road in perfect visibility. At the time of the incident there were three pedestrians and a dog present on the sidewalk approximately 5 feet to the right of the roadway. Traffic on this particular stretch of road was relatively light at the time of the incident. No collisions occurred, and no individuals were injured. However, on a normal day there will be numerous other vehicles driving in the same lane, which would likely result in a rear end collision should this problem recur. This incident occurred without any prior warning or other symptoms. The vehicle's CMBS has not yet been inspected by the manufacturer or any other parties.

Suddenly slows down without any reason while lane changing or at stop sign. It is a safety issues.

Vehicle safety braking automatically operates even when no other vehicles are nearby; no vehicles in front, on either side, and behind my vehicle. In other words, phantom braking occurs without warning. This has occurred numerous times in 2023 and 2024.

Car stops abruptly without warning or reason. This happens about once a week. Could cause an accident under certain circumstances.

There have been multiple instances of the car slowing or braking while passing other vehicles on the highway. In some cases the emergency BRAKE alert shows on the dashboard and the vehicle brakes on its own. In ALL cases there was no hazard or reason to slow or brake. This occurs often but intermittently. It has occurred in rain, night, day, sun, or other various atmospheric conditions and there seems to be no correlation other than the ACC is engaged at the time and we're passing other vehicles that are on the right side of the car. In several cases, there are other vehicles behind us while passing and the "brake check" occurrences have caused those behind us to have to brake hard or swerve to avoid us. It also creates a terrible habit for the driver of my car of using the accelerator when the BRAKE light illuminates in order to not get hit from behind. The dealer was notified and checked the car and claims there are no issues with ACC or the sensors. This indicates that the system gain tuning my be faulty or too sensitive and that the dealers are not able to make any changes to fix the issue.

While driving on a clear day with good weather, my car's Collision Mitigation Braking System (CMBS) slammed on the car's brakes with no one in front of me whatsoever. I was driving over a bridge at the time, and it was my assumption that shadows from the bridge structures above caused the system to go. This is the second time the CMBS went off for no reason. I am lucky no one was behind me as the car slams on the brakes when CMBS goes off.

The Honda is equipped with a Collision Mitigation Braking System. Traveling at around 40 mph on a two lane road, one lane in each opposite direction, the orange brake warning light appeared on the dash. Simultaneously, the brakes were very forcefully applied as if there was going to be an unavoidable collision. There was nothing in front of the vehicle. I called the dealer where we purchased the Honda. The service rep said he had heard of other similar instances, asked what kind of road it was and said to see if it happened again on the same road. He knew of no known fix for the issue. My wife, who was in the back seat, and recently had 3 sections of her neck fused, is currently in a lot of pain. If the road had been a little slippery, all four in the car could have been seriously injured or worse. If there had been a vehicle close behind us, there is a good chance we would have been rear ended.

Vehicle has had safety warning since February 2023. Parts required have been on “back order” with dates continually changing and moving out and dealership or Honda not able to resolve the issue or determine when repairs can be made. Current parts estimated shipment has moved to September 2023. Online search to attempt to purchase parts from Factory direct or any other location return a “part discontinued” listing with no replacement. Part numbers at issue to resolve safety issue are Honda part numbers 39680TZAJ01YE and 39680TZAJ01ZE. This leaves me with a vehicle that has diminished safety features and Honda not able to provide any realistic dates for a solution.

Multiple instance of the car providing "BRAKE" annunciation, rapid deceleration, and brake application at highway speeds when passing vehicles. Often happens when passing semi trucks, but not limited to them. Several instances this rapid and unexpected brake application has required driver action to avoid rear-end collisions with the car behind who may be following too closely. Unable to completely turn off the CMBS system, must be done per drive. With that system turned off the braking application is expectedly absent during these events, but the car will still provide a rapid deceleration (as if a driver took their foot off the accelerator pedal) but without brake application which also has been problematic for cars following. Local dealer confirmed that the system is functioning without warnings or errors, no recalls are active for the car, and the alignment and function of all related sensors are per the manufacturer. Dealer claims they are unable to reproduce the issue.

The contact owns a 2022 Honda Accord Hybrid. The contact stated while driving 55 MPH, the vehicle was independently braking. The contact stated that the Lane Departure warning light was illuminated. The contact was able to continue driving to his destination. The contact stated that he experienced the failure on 5 separate occasions. The vehicle was not diagnosed or repaired. A dealer was not contacted. The manufacturer had been informed of the failure. The failure mileage was approximately 1,000.

Purchased car on 11-30-21. Three (3) times, most recently 3-5-22, while making a lane change from a single lane to multiple lanes on a right curve, the vehicle has suddenly decelerated and the braking system came on. Fortunately, no one was behind me on any of the three (3) occurrences. The vehicle did not come to a complete stop. Speed at time of each incident was around 45 mph and the vehicle slowed to under 30 mph abruptly.