2021 Honda CR-V: adaptive cruise control problems

Filed Apr 17, 2026 · Driver assistance · 81,000 miles · AL

The contact owns a 2021 Honda CR-V. The contact stated that while driving at various speeds, the vehicle experienced phantom braking. Additionally, while driving with the cruise control set at 72 MPH, the vehicle unexpectedly decelerated to 66 MPH before accelerating to 73 MPH. No warning light was illuminated. The vehicle was taken to the dealer, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 81,000.

Filed Nov 23, 2025 · Electrical · PR

Component or system involved: Electrical system / infotainment unit / audio system / driver-assist camera systems. Yes, the affected components are available for inspection upon request. Safety risk: The incident occurred at highway speeds, which created a potential safety hazard because the infotainment system suddenly shut down, the audio system emitted a loud “pop” sound, and driver-assist features became unavailable. The distraction and temporary loss of information could increase crash risk. Reproduction: The issue has not been reproduced yet and has not been confirmed by a dealer or service center at this time. Inspection: The vehicle has not yet been inspected by the manufacturer, dealer, police, insurance, or any other agency. Warning signs: No warning lamps or messages appeared prior to the failure. The issue started suddenly while driving. What happened: While driving at approximately 65 mph on a major highway with cruise control active, the infotainment system suddenly shut off for about five seconds. At the same moment, the audio system emitted a loud “pop” noise similar to a small explosion. After that, the screen restarted and remained stuck on the Honda logo for around two minutes. When it finally rebooted, the clock reset itself to UTC instead of the correct local time. All of this occurred while the vehicle was in motion, which created a distraction and potential safety concern. No previous warnings or symptoms were present before the event.

Filed Sep 2, 2025 · Driver assistance · MT

About a year ago, I was driving at speeds of approximately 10-15 mph when my car braked and immediately brought me to a dead stop despite no obstacles being present in the roadway. It appears the automatic emergency braking system malfunctioned. Had there been a car behind me, it likely would have caused an accident. On August 15, 2025, I was driving on the freeway using the adaptive cruise control when traffic in front of me slowed, engaging the automatic emergency braking. Traffic in front of me cleared almost immediately but my car was still very rapidly decelerating. I pressed the gas pedal, but the vehicle continued to bring me to almost a complete, immediate stop on the freeway (I had been traveling at 70-80 mph prior to the stop). I feel incredibly fortunate that I did not end up in an accident due to the traffic behind me and that no one was injured or killed. I pulled off onto the shoulder when it became clear that I was not going to be able to quickly regain control of my vehicle. Driving a vehicle without being able to properly control it was an absolutely terrifying experience. I was bracing myself for impact from behind as I desperately tried to regain control and accelerate back up to the flow of traffic. I am certain that this malfunction will result in deaths if not addressed. On August 23rd, 2025, I was driving on a highway at approximately 60 mph when the car in front of me slowed in preparation for a right turn off the road. I had disabled the CMBS feature at the beginning of my drive, yet the car still braked without me hitting the brake pedal. It was not an immediate, abrupt brake as I had experienced in the other two previously described incidents, but it was still highly unnerving to feel another loss of control of the vehicle, especially since the system was supposedly disabled.

Filed May 28, 2025 · Brakes, Driver assistance · VA

My 2021 Honda CR-V has experienced incidents where it suddenly and unexpectedly applied the brakes while I was driving, despite: - No vehicle, pedestrian, or object is present in front of me - No driver input on the brake pedal - Not using cruise control at the time My car occasionally jerks or shows warning lights before stopping, sometimes without any warning. I suspect an issue with the Collision Mitigation Braking System (CMBS) or related driver-assistance components. These braking incidents occurred under normal driving conditions and pose a high risk of being rear-ended. My car's issues remain unresolved, and I feel unsafe while driving my vehicle. Two dealerships conducted four diagnostic tests (on 18, 19, 21, and 24 May 2025) to evaluate the Honda Collision Mitigation Braking System (CMBS) and the associated driver-assistance components. But no issues were identified during these evaluations. - 23 May 2025, I discussed my car’s issues with a Honda Case Manager (in California). He did not accept any responsibility for the reported Honda braking issues. - 27 May 2025, I filed a formal complaint with Honda Customer Service. Honda has not taken any action to address my car’s issues.

Filed Nov 1, 2024 · Driver assistance · 70,000 miles · ID

The contact owns a 2021 Honda CR-V. The contact stated while driving at an undisclosed speed, the cruise control feature became inoperable. There were several warning lights illuminated. The contact stated the cruise control light failed to activate and the brakes would inadvertently activate with no traffic nearby. The contact stated that the vehicle stalled, and while accelerating the speed would fluctuate. The vehicle was taken to an independent mechanic but was not diagnosed or repaired. The vehicle was taken to a dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000.

Filed Aug 6, 2024 · Acceleration, Brakes · CA

A few times while using the vehicle’s cruise control system, our 2021 Honda CRV suddenly started braking on its own automatically, for no apparent reason. It was sudden, surprising, jarring, and scary. Thank goodness no one was injured. The vehicle components have not been inspected yet by any party and is available for inspection. There were no warnings prior to the sudden automatic braking. We are reporting this to Honda today as well.

Filed Apr 17, 2024 · Steering · IN

UNKNOWN. While driving on the highway at 60MPH for 30+ minutes, the steering wheel began to stick when making small adjustments to stay in the lane or when driving through curves. It was over 80 degrees outside during both instances of this happening. No warning lights were on, lane assist was OFF, cruise control was ON. The possibility of over-correcting into the opposite lane or off the road is high, especially in inclement weather with less traction. The vehicle is available for inspection upon request. The dealership is attempting to reproduce the issue.

Filed Mar 13, 2024 · Driver assistance · FL

Since new and on numerous occasions, the vehicle will slow down drastically for no reason. No vehicle in front or object close to either side, it just brakes automatically. It only happens when the vehicle’s cruise control is on. On March 7th 2024 I was on the highway with the cruise control set at 75MPH. The vehicle for no reason slammed on the brakes and tried to come to a complete stop. No skidding or loss of control due to the ABS, but if had not stepped on the accelerator, it would have. I went from 75MPH to about 20MPH in seconds. Thankfully, the driver behind me reacted and went around me on my right side. I there was another vehicle to my right, I am certain, I would have been re-ended. I took the vehicle to the HONDA dealership and was told they were not aware of the problem, but they could attempt to fix it. I have lost confidence in driving the vehicle with the cruise control engaged.

Filed Dec 19, 2023 · Brakes, Driver assistance · OH

Took my Honda CRV 2021 EX in because all of my warning lights (Critical Failure) were going off as I was driving. All safety features were failing including AWD control, braking, sensors, cruise control, etc. They replaced the battery and tested the alternator. They reset the system and said it was fixed. I picked mine up today, drove it for 10 mins on the highway and then hit the "MAIN" button on the stearing wheel to turn on the cruise control. As soon as I did that, ALL of the warning lights came on at the same time and the systems started to fail again. This is a hazard and could cause an accident at any moment. In reviewing the Honda forums, this is a massive problem with hundreds of Honda CRV EX 2020-2022 models. I'm 7000 miles over my warrant and Honda won't look at it. However, it is directly their problem and my car is only 2 years old.

Filed Sep 15, 2023 · Driver assistance · MI

Driving in cruise control, no one in front of me, suddenly hard braking, enough to throw me forward in the seat. There was a car behind me but fortunately he braked also. There was no apparent reason for my car to brake. Called service center, no solutions or recommendations.

Filed Jan 8, 2023 · Driver assistance · NJ

While driving, using cruise control, usually at speeds between 35-45 mph, the automatic emergency braking will engage after a vehicle, formerly in front, has completed a right hand turn. That vehicle is no longer in front of my vehicle when my vehicle begins to brake. My vehicle was automatically maintaining distance and not accelerating. I informed the Honda dealer of this at the 15,000 mile check up. The Honda dealer told me that the car was responding correctly through the side sensors. It is jarring to almost come to a complete stop and could cause a driver behind to rear end my car. This has happened at least four times.

Filed Dec 14, 2022 · Engine · 6,851 miles · VA

The contact owns a 2021 Honda CR-V. The contact stated that while driving at an undisclosed speed with the cruise control activated, the vehicle lost motive power with the check engine warning light illuminated. The vehicle was able to be restarted. The vehicle was taken to the dealer; however, the dealer was unable to duplicate the failure, and no error codes were retrieved. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 6,851.