2020 ACURA MDX Forward Collision Avoidance Adaptive Cruise Control Problems

I was driving on a normal sunny day when every light on my dashboard came on. I initially panicked thinking my car was going to shutoff while I was driving it. This is in conjunction with the car stalling out when the auto shutoff feature malfunctions. After researching the issue, I realized the safety camera was no longer working and a major concern. A malfunctioning front camera can prevent the vehicle from automatically braking or maintaining lanes, hence increasing the risk of collision. I am requesting that NHTSA investigate the front multi-purpose camera system on the 2020 Acura MDX for potential defect and safety hazard.

There was a couple times where the car stalled at a red light. Also, there are a lot of times when I press the push to start, it will not start, advising me to place the key fob near the push to start. I find this to be dangerous when driving and very annoying when attempting to start and it doesn't start.

This is a safety-related defect involving the multipurpose front camera used for Advanced Driver-Assistance Systems (ADAS) on the 2020 Acura MDX. The multipurpose front camera failed without warning, resulting in the simultaneous loss of multiple ADAS safety features, including (but not limited to) Lane Keeping Assist, Adaptive Cruise Control, Collision Mitigation Braking, and Road Departure Mitigation. These features are integral to the vehicle’s active safety systems and driver awareness. The failure required full replacement of the front camera assembly. The total repair cost was approximately $2,300, which I was required to pay out of pocket because no recall or extended warranty coverage was available. This failure creates a significant safety concern because: * The loss of ADAS functions occurred suddenly and without driver fault. * The driver may rely on these systems for collision avoidance, lane control, and adaptive braking. * The vehicle remains drivable, but with materially degraded safety...

I drove my car in the morning and parked it in the lot for about an hour. After I came back and started my car, the following multiple safety systems displayed on my dashboard at the same time: - Lane Keeping Assist Problem - Collision Mitigation System Problem - Road Departure Mitigation System Problem - Auto High Beam Problem - Adaptive Cruise Control Problem When I took it to the dealership on the same day to diagnose this, they came back and said it was an internal failure with the camera and quoted me around $2200 to replace and recalibrate the camera. These lights just came on out of nowhere, I had no repairs or modifications with my windshield and there were no accidents of any sort. This appears to be a widespread problem among 2020 Acura MDX vehicles with similar camera modules. A malfunctioning front camera can prevent the...

All the sensors are blinking with no damage done to the vehicle no Cruz Control no abs no lane departure and more all sensor is not working

While driving my 2020 Acura MDX with 29,647 miles, all AcuraWatch safety systems suddenly failed at once, including Collision Mitigation Braking System (CMBS), Lane Keeping Assist, Road Departure Mitigation, Adaptive Cruise Control, and Automatic High Beams. Multiple warning messages appeared simultaneously. This disabled forward collision warning, automatic emergency braking, and lane departure/lane keeping functions, creating a serious safety risk. The dealer inspected the vehicle and confirmed an internal failure of the multipurpose front camera/radar unit, and recommended replacement of the entire assembly. The repair estimate is $2,200. The dealer stated the component has failed and cannot be repaired. This issue is widely reported by many Acura owners of similar model years, and appears to be a recurring defect. The failure occurred without any impact, damage, or modification. The vehicle is available for inspection. The symptoms began suddenly and all warnings appeared at the same time. Because this failure disables critical...

Monocular windshield camera failed for no apparent reason on five-year-old car with less than 50k miles. Dealer cost to fix $2k. My concern is there are an many individuals on the Acura MDX forums complaining of the same problem. It appears to be a relatively common but very costly failure on many Honda vehicles that use similar cameras. I believe this is worthy of an investigation, especially since the camera is necessary for many safety related features to function properly.

UKNOWN ACC,LKAS, brake system warning lights intermittently come on. Started around 25000. More persistent now. Dealer advisor checked windshield/wiped over where the camera is and since it was not on at the dealership no problem found. Just stated the camera is funky sometimes. Vehicle has 59000 now. Not sure exactly what components are effected but the safety features of the vehicle no longer work properly such as the breaking warning.

My 2020 Acura MDX is throwing up multiple dashboard warnings related to the camera sensor—involving systems like Adaptive Cruise Control, Lane Keeping Assist, Collision Mitigation, and Road Departure Mitigation. These systems rely heavily on the Multipurpose Camera Unit mounted near the rearview mirror. I took it to my Acura Dealership Service and they concluded it's the Multipurpose Camera Unit that's causing all these dashboard warnings. They are charging me $1800+ for a new one to be installed. I have researched and googled this issue online, and there were hundreds and hundreds of comments from Honda car owners that have faced this issue, especially Honda and Acura models made in 2019-2020. Many have bought a used camera unit for approx. $150 online and got it installed & calibrated. Others have said that this camera unit is so HOT to the touch since it's located under the windshield. I agree with a...

Failed Component: Front camera system controlling adaptive cruise control, lane departure warning, lane keeping assist, and other safety features. Safety Risk: Loss of these systems increases risk of collision, lane drift, and reduced driver reaction time. Date Issue Began: August 12, 2025. Confirmation: Problem reproduced and confirmed by authorized Acura dealership. Inspections: Inspected by Acura dealership only. Symptoms: Dashboard alerts immediately after startup stating adaptive cruise control, lane departure warning, and lane keeping assist are unavailable; warnings remain active while driving.

MALFUNCTION: ROAD MITIGATION SYSTEM FAILED (RDM), LANE KEEPING ASSIST SYSTEM (LKAS) FAILED, and CRUSE CONTROL FAILED, after investigating the issue this is happening with multiple vehicles. SAFETY: YES, these all failed at the same time, poses significant safety issues for the diver, passengers, and other drivers due to nature of failure. CONFORMATION: at this time no inspection of the vehicle has transpired. NO OTHER WANING LAMPS OR MESSAGES, prior to suddenly showing up today 6/18/25

I am reporting a failure of the multipurpose front windshield camera in my vehicle, which resulted in the loss of multiple safety systems including Lane Keeping Assist System (LKAS), Road Departure Mitigation (RDM), Adaptive Cruise Control (ACC), Auto High-Beam, and Collision Mitigation Braking System (CMBS). These features are critical to safe driving, and their sudden deactivation poses a serious safety risk to both the driver and others on the road. This issue required costly repairs. I believe this represents a safety defect that should be investigated by NHTSA.

Faulty Windshield camera. which fails due to overheating. and sets off problem lights on the dashboard. lane keep assist , lane departure, brake problem. this seems to be a common problem with this faulty design. to replace this part is $2,000 which who knows if it will fail again. so know one is forced to drive around with the constant problem lights and the uneasy feeling of not having brake assistance when and if needed. this puts not only the driver and passengers lives at risk but the lives of the public.

### 1. **What component or system failed or malfunctioned, and is it available for inspection upon request?** The rearview camera system in my 2020 Acura MDX has malfunctioned. The camera, which is integral to several safety systems in the vehicle, has failed, causing significant safety concerns. The vehicle is available for inspection by an Acura dealership or independent service center upon request. ### 2. **How was your safety or the safety of others put at risk?** The malfunction of the rearview camera directly impacts the **Collision Mitigation Braking System (CMBS)**, **Adaptive Cruise Control (ACC)**, and **Lane Departure Warning (LDW)** systems. These systems rely on cameras and sensors to detect obstacles, maintain a safe following distance, and alert the driver when switching lanes. Without the proper function of the rearview camera, these safety systems become unreliable, increasing the risk of head-on collisions, rear-end accidents, or unintended lane changes, which could lead...

I'm not sure if there is a problem with any of the components, but the radar sensor malfunction impacted the vehicle's braking system. Situation: On [XXX], I was driving with my wife and her nephew from my home (Ankeny, IA) to Indiana on [XXX] [XXX] and [XXX] [XXX] . It was snowing that day. As usual, there were other vehicles on the highway, semi-trucks, pickup trucks, cars. The snow was splashing on to my front bumper, lights, radar sensor and windshield. As it was snowing, I did not engage the cruise control feature. We were around 30 miles from Iowa City, I was passing a semi-truck, a message was displayed on the dash to clean the radar sensor. I thought of pulling over in a safe spot to clean it up. At the same time, "front collision off" and "brake system" icon lite up. The road also changed from downhill...

While at a stoplight, my car notified me of many sensors having "problems" From my understanding, it relates to the front camera located on the windshield. I am unable to use these additional safety features since the problem arose earlier this week. Had this gone out while I was driving, my family and I could have been fatally affected. My cursory research online shows this is a recurring problem that customers need to address independently. All expenses are paid from their own pockets. There were no warnings prior to the system's failure. I have not taken my car in yet for this to be addressed. I am frustrated that this is a known issue with no proactive solution by a brand I had trusted.

the manufacturer has not solved in a timely matter the open recall since November 2023

WHILE DRIVING AT HIGHWAY SPEEDS WITH THE ADAPTIVE CRUISE CONTROL ENGAGED, THE VEHICLE DETECTS VEHICLES TO THE RIGHT (SAME DIRECTION OF TRAVEL) OR AT TIMES VEHICLES TO THE LEFT (OPPOSITE DIRECTION OF TRAVEL) AND ABRUPTLY APPLIED BACKING. NO VEHICLES WILL ACTUALLY BE IN LANE OF TRAVEL OF THE VEHICLE TO CAUSE ACTION. ON A 87 MILE DRIVE (ONE WAY TO WORK) HAPPENS MORE THAN EIGHT TIMES ON FIRST DRIVE AND OVER TEN TIME ON SECOND DRIVE. VEHICLE HAS UNDER 1500 MILES ON IT AND WAS PURCHASED BRAND NEW. TAKEN TO ACURA AND TOLD TO TURN OFF LANE DEPARTURE SYSTEM UNLESS IN CITY TRAFFIC. SYSTEM TURNED OFF AND DID NOT CORRECT ISSUE. THE ABRUPT BRAKING CAUSES DRIVERS BEHIND TO ABRUPTLY BRAKE, INCREASING RISK OF CRASH, AND ALSO ANGERS THEM BECAUSE THEY THINK YOU ARE 'BRAKE CHECKING' THEM. WEATHER WAS CLOUDY OR CLEAR.