2020 Acura MDX Driver assistance Problems

Collision Mitigation, Automatic Cruise Control, and Lane Keep Assist features disabled. Safety equipment failure.

NHTSA ID

11746074

Incident

Jun 18, 2026

Good morning, Out of nowhere my dashboard lit up after 5+ years of having no issues with the vehicle. I believe there are a total of 5 safety features that are linked to the ADAS camera in this MDX but i am not 100%, it may be 4 safety features. I am not here to whine about a repair on a 6 year old vehicle but this particular issue has become extremely common with this vehicle. I believe (along with all the other owners) that the ADAS issue with certain year Acura & Honda is happening way to often way too soon. my MDX does not even have 70k on it! after doing some research between Facebook, Reddit & many other Acura/Honda forums this appears to be all too common. when that camera shits the bed you lose many of the main safety features that may have brought you to purchase that vehicle. My local Acura dealer in Wilmington, NC told me he is replacing this part once a month and none of them are under warranty I'm not sure why he shared that with me but he did. that is an alarming number considering where i live and how few MDX's there probably are in my area. Where i live everyone drives either a full size pickup or suv and theyre all American brands. the dealer wants $1800 for the repair. I'm getting it done because i have the money to do it but I am not happy at all. normal wear and tear repairs i get, this one however i have a major issue with it. many people are not having the repair done because the car is driveable. any help with this would be greatly appreciated & thank you for your time. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11741211

Incident

May 1, 2026

My cruise control, automatic lane changing indicator light indicator, brake indicator light, high beam light indicator lights all keep coming off and on. Researching it on YouTube states that it’s the camera on my windshield getting too hot and it’s a known issue. It’s $1800 To fix but others have stated they get fixed and it doesn’t resolve the problem. Asking for your help.

NHTSA ID

11741032

Incident

May 29, 2026

Faulty forward facing camera affixed internally on windshield. Adaptive Cruise Control will not function. Lane Keeping Assist will not function. Collision Mitigation Braking may be unavailable. Vehicle detects oncoming traffic in opposing lane as a potential collision, causing braking system to engage and causing a risk of a collision or being struck from the rear despite no vehicle ahead except on the opposite side of the road. Acura can not find anything wrong with the vehicle. Recently all warning lights for high beams, braking system, LKAS, road departure, front end collision, etc flash on vehicle. Multiple people with Acura and Honda vehicles have reported the same issue with the front windshield sensor camera, yet no recall, instead they have paid thousands to replace a faulty camera system. Acura quoted $2000 for replacement of camera. Vehicle operationally runs fine. Why has nothing been done despite numerous, repetitive issues with this safety hazard?

NHTSA ID

11737175

Incident

May 9, 2026

I was pulling up to our house to park in the open garage as I typically do and was in the driveway with my foot lifted off the gas pedal to allow the car to coast forward slowly. The car hesitated for a moment before it lunged/accelerated on its own with such force I had to slam on my brakes to avoid the car hitting the wall of our house. I did not have cruise control on. Took the car to Acura dealership for a multi-point inspection and they found nothing out of order that would’ve caused that to occur.

NHTSA ID

11736703

Incident

May 1, 2026

The front camera mounted under the dash stopped working, prompting all of these systems to fail.

NHTSA ID

11722941

Incident

Jan 30, 2026

Add Auto High Beam problem to the above Adaptive cruise control, lane keeping assist, and collision mitigation. Suddenly got several warning popups and persistent warning lights on related to the identified issues. We just replaced the battery a few months ago, and didn't have any of these problems until this week. Now, it happens every time we start the vehicle. We did the Recall software upgrade. I suspect these problems are related to that software upgrade. Many people online report identical problems without solutions. Please advise RE next steps for how to resolve.

NHTSA ID

11721310

Incident

Feb 25, 2026

I start getting every kind of warning on my dashboard - Collision mitigation system problem -Auto Crues Control Problem -Brake system Light on - The Car apply brake on the miidle of street/Highway

NHTSA ID

11720934

Incident

Feb 26, 2026

The contact owns a 2020 Acura MDX. The contact stated that the front windshield camera became inoperable. There were unknown warning lights illuminated. Additionally, the control arms failed. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The windshield was replaced with an aftermarket part at an auto body shop. The control arm was replaced at the local dealer. The manufacturer was contacted, but no assistance was provided. The failure mileage was approximately 45,000.

NHTSA ID

11718591

Incident

Jul 17, 2025

Mileage

45,000 mi

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.

NHTSA ID

11716875

Incident

Sep 1, 2025

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.

NHTSA ID

11709878

Incident

Dec 31, 1969

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 capabilities compared to its certified design. * There is a risk that drivers may not immediately recognize the loss of functionality or may assume partial systems are still operational. After experiencing this issue, I discovered numerous reports from other Acura MDX owners describing identical multipurpose front camera failures, often at similar mileage, with similarly high repair costs. This suggests a potential systemic defect rather than isolated wear or misuse. I respectfully request that NHTSA review this issue to determine whether this represents a safety-related defect requiring investigation and possible recall. Given the role this component plays in multiple safety systems, I believe this issue warrants formal evaluation.

NHTSA ID

11708481

Incident

Jul 13, 2025

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 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.

NHTSA ID

11704183

Incident

Nov 28, 2025

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

NHTSA ID

11702117

Incident

Nov 21, 2025

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 collision-avoidance and lane-keeping systems, it presents a significant risk to the driver and others on the road. I believe this should be investigated as a safety defect.

NHTSA ID

11701938

Incident

Nov 25, 2025

Electric parking break and emissions light keep popping up. They says it’s the catalytic converter many people having the same issue

NHTSA ID

11698353

Incident

Nov 2, 2025

emission system problem & electric parking brake problem codes came up. Once pulled over vehicle would not disengage the emergency parking brake.

NHTSA ID

11694254

Incident

Oct 18, 2025

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.

NHTSA ID

11688550

Incident

Sep 19, 2025

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.

NHTSA ID

11685342

Incident

Sep 5, 2025

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 lot of these Honda/Acura owners that this malfunction of this camera is a safety issue for the car drivers and others around them since these codes just pops out suddenly making the drivers so nervous during driving. Also, these cameras under the windshield get so, so hot that it could also start a combustible hazard. These units should be encased in a heat-tolerant case/cover and not metal.

NHTSA ID

11685108

Incident

Sep 1, 2025

1. The car accelerates by intself. The accelaration is like "hiccups". When reversing and changing to D gear, it takes longer than usual for the accelarion to take effect. Yes, car is available for inspections 2. It is dangerus because it gets the hiccups even at high speeds. If it is a serious egine problem, which seems like it is, could cause an accident. 3. The car was taken to the dealership for 3 recalls but it got worse after the recalls were fixed. Supposedly the recalls were supposed to fix the issues. We have not taken it back yet. 4. There is no lights or warnings when it does it.

NHTSA ID

11683334

Incident

Aug 27, 2025

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.

NHTSA ID

11680494

Incident

Aug 12, 2025

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

NHTSA ID

11667706

Incident

Jun 18, 2025

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.

NHTSA ID

11664198

Incident

May 26, 2025

2020 acura mdx tech package with 31600 miles, I purchased this vehicle first owner in march of 2021 and about 3 days ago 5/22/25 I get a fault reading for collision mitigation system problem, lane keep assist problem, road departure mitigation system problem, adaptive cruse control problem and auto high-beam problem, all safety feature issues, I brought vehicle to Acura dealership and they scanned for error codes which produced error code#u3000-49 for faulty multipurpose camera unit millimeter wave radar internal electronic failure recommend to replace the wave radar, dealership states vehicle is no longer under warranty and would cost a total of $1500 to get repaired and replaced , this issue should be looked into further for faulty acura part if repair is done what are the chances of it happening again with normal usage of vehicle.

NHTSA ID

11662962

Incident

May 21, 2025