2017 Acura MDX: false forward collision warnings

Filed Aug 8, 2026 · Driver assistance · FL

I am reporting repeated failures of the front safety camera / Collision Mitigation Braking System (CMBS) on my 2017 Acura MDX Tech (FWD). The vehicle has experienced intermittent and sudden loss of all ADAS safety functions, including CMBS, Lane Keeping Assist, Adaptive Cruise Control, and Road Departure Mitigation. The failures occur without warning, while driving at normal speeds. The dash displays “Safety Support System Problem,” “Collision Mitigation System Problem,” “Lane Keeping Assist Problem,” and related alerts. When this happens, all forward‑facing safety systems shut down, increasing the risk of collision. The issue is persistent and unpredictable. It has occurred in clear weather, dry roads, and normal driving conditions. The vehicle does not have the Advance package or surround‑view system; this is the standard Tech‑package front camera. Multiple Acura service departments have confirmed the problem is caused by a faulty front monocular camera module (part number 36160‑TZ5‑A36). Acura has superseded this part several times (A63, A64, A65, A66), indicating an ongoing design or reliability issue. Replacement cost is extremely high, and the failure disables federally‑relevant safety systems. This is a safety‑critical component. When the camera fails, the vehicle loses collision‑avoidance capability, lane‑keeping assistance, and adaptive cruise control. The failure happens while the vehicle is in motion, creating a risk of rear‑end collisions or lane‑departure accidents. I am requesting the federal safety agency review this issue for potential defects in the Acura MDX front safety camera system.

Filed Aug 3, 2026 · Driver assistance · LA

Problem Description: I am reporting a safety-related issue affecting multiple driver assistance systems on my 2017 Acura MDX. While driving, the vehicle displays several warning messages at the same time, including: Adaptive Cruise Control (ACC) Problem Lane Keeping Assist System (LKAS) Problem Road Departure Mitigation (RDM) System Problem Collision Mitigation Braking System (CMBS) Problem When these warnings appear, all of these safety systems become unavailable. The warning indicators remain on, and the systems do not function even after restarting the vehicle. The 12-volt battery was replaced approximately one month before this issue began, and the engine starts and runs normally. Despite the new battery, the warnings continue to appear, making the vehicle's advanced safety features unusable. This appears to be a widespread issue reported by many owners of the 2017 Acura MDX. Since multiple critical safety systems fail simultaneously, I believe this may be related to a defect in the vehicle's electrical system, charging system, control modules, wiring, or communication network. Because these features are designed to help prevent accidents, their sudden loss creates a significant safety concern. I respectfully request that Acura investigate this issue and consider issuing a recall or extending warranty coverage if a common manufacturing defect is identified.

Filed Jul 3, 2026 · Driver assistance, Electrical · NJ

I am reporting a severe safety defect regarding the sudden, unprovoked failure of the AcuraWatch driver-assist camera system (affecting LKAS, ADAS, and the Collision Mitigation Braking System), which directly and unexpectedly alters the vehicle’s powertrain and driving dynamics without driver input. While driving, the front windshield monocular camera module experienced an internal electronic failure, immediately lighting up multiple critical safety warning indicators on the dashboard and permanently disabling all forward collision prevention and lane-keep capabilities. I urge the federal safety agency to open a safety defect investigation into 2016–2019 Acura MDX models regarding camera system degradation and its hazardous, cascading impact on transmission shift timing and vehicle deceleration behavior.

Filed Jun 30, 2026 · Driver assistance · NJ

I have my LKAS lights, collision mitigation light on, road departure mitigation lights on..

Filed Apr 25, 2026 · Driver assistance · MI

The multipurpose front camera on my 2017 Acura MDX failed with DTC U3000‑49, disabling LKAS, ACC, CMBS, and FCW. Acura issued Service Bulletin 23‑008 acknowledging a software defect, but my VIN was denied eligibility despite matching the bulletin’s criteria. This is a safety‑critical failure affecting many owners, and Acura is forcing consumers to pay for camera replacement instead of providing the software fix. My 2017 Acura MDX (VIN [XXX] ) is experiencing a failure of the multipurpose front camera, which controls several collision‑avoidance systems including: Lane Keeping Assist System (LKAS) Adaptive Cruise Control (ACC) Collision Mitigation Braking System (CMBS) Forward Collision Warning (FCW) All of these systems became disabled, and the vehicle displays multiple warning lights. The diagnostic code stored is U3000‑49 (FCW/LDW Camera Unit Malfunction). Acura issued Service Bulletin 23‑008, which states that: “A problem exists with the detection logic in the multipurpose camera software.” The bulletin applies to all 2017–2018 Acura MDX trims, and the corrective action is a software update to the camera module. My vehicle matches the exact symptoms described in the bulletin. However, Acura and the dealership informed me that my VIN is “not eligible” for the update, even though the bulletin explicitly lists my model year and trim. Instead, I was told I must pay for a full camera replacement, costing over $1,200, despite Acura acknowledging the issue is software‑related. This leaves me with a disabled safety system and no manufacturer‑supported remedy. The failure is widespread among 2017 MDX owners, and many report identical symptoms and identical denials of coverage. Because this defect disables multiple federally relevant safety systems simultaneously, I believe this should be treated as a safety recall, not a customer‑paid repair. I am requesting that the federal safety agency investigate this issue and require Acura to provide the software update.Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION A

Filed Mar 29, 2026 · Driver assistance · CA

I am reporting a major safety failure on my 2017 Acura MDX regarding the forward-facing multipurpose camera. Out of nowhere, the camera failed and triggered a cascade of warning lights across my entire dashboard. Because of this hardware defect, all of the critical safety systems—including the Collision Mitigation Braking System (CMBS), Lane Keeping Assist (LKAS), and Adaptive Cruise Control—are now completely disabled. Having these emergency systems shut down while driving in traffic is a serious safety hazard. Furthermore, the constant flashing of 5 or 6 different warning lights on the dash is a massive distraction while trying to operate the vehicle. This is a well-documented hardware failure in these models, and it shouldn't be left to the owners to pay thousands of dollars to fix a primary safety component that failed prematurely. This needs to be investigated as a mandatory safety recall before these failures lead to an accident.

Filed Dec 13, 2025 · Driver assistance · GA

Blind spot warning, forward collision warning, lane departure warning, lane keep assistance, and high beam lights keep flashing on dash giving a code of: U3000-49. The dealership quoted me $2000 to fix a faulty front facing camera. Research shows this is happening to thousands of people.

Filed Feb 23, 2025 · Brakes, Driver assistance · PA

There are warning lights for all safety modules, The LKAS, Headlight warning system accident prevention system, collision avoidance system etc..

Filed Jun 1, 2024 · Driver assistance, Electrical · CT

On highway and switching lanes. All of a sudden ELECTRIC PARKING BRAKE AND ALL DRIVER ASSIST LIGHTS CAME ON. Pull over light came on as well. HIT ON LEFT REAR SYMBOL CAME ON. Was never hit just a close car on driver left rear side when switching lanes. Made it home and vehicle wouldn’t switch back into drive mode. Acura didn’t do its due process and assumed a new transmission was needed. Replaced and a month later ELECTRIC PARKING BRAKE sign starts flashing again. Now dealership is saying I need a new catalytic converter. Refused as I believe Acura has been incorrect about the diagnostic. They also stated my vehicle was in a collision and it wasn’t. They refused to check electrical issues and update software as these things are not in my control. It is my belief the car had a faulty collision warning which is causing other issues as well as Acura refusing to probably assist and diagnose without me continuing to be falsely diagnosed

Filed Jul 21, 2023 · Brakes, Driver assistance · GA

Driving in rain and multiple systems failed at once without any reason. Car indicates brake systems, lane assistance, power steering, collision mitigation, stability control, etc all indicate problems. No reason for it to all go out at once.

Filed Sep 26, 2019 · Acceleration, Brakes · 40,900 miles · NY

Since owners and on 4 specific occasions. While driving at high speed upon acceleration at 70 MPH auto went dead. Lost all power. After eight minutes auto restarted. 9 months ago, while placed into reveres to auto self accelerated t high speed. After brakes applied and vehicle placed into drive vehicle accelerated at a hgh rate of speed. Lock brakes put vehicle into neutral restarted. One month ago while turning left into traffic at a major intersection, car brakes applied awaiting left turn against traffic. Went to accelerate, car dash lights went wild all begin bling rapidly, dash went black, ABS brakes and brake pedal went to floor car went by itself into neutral. Took over 8 minutes to restart. On 9/24.19 tuesday at 1:41 pm while traveling west bound on interstate 90, at 74 MPH while passing a semi truck as I passed the truck, with a clear distance and proceeded to turn into the right driving lane in front of the truck as I pulled right the vehicle dash went black, the ABS and brake peddle went to the floor and the car decelerated rapidly from 74 to 50 MPH within a second. The semi locked the brakes to avoid a serious rear end collision. As I reached 50 MPH the dash re lite and all instrumentation appear to function and as I pushed down on the accelerator the vehicle regained speed. I can report perhaps 15 to 20 other major items with collision avoidance and electronic dash abnormalities. The vehicle has been in the acura shop minimally 15 to 20 times over 24 months to no avail. Acura reports software updates or bad battery causing low voltage signals. This vehicle is dangerous and if not addressed will cause death.

Filed Jun 12, 2018 · 1,200 miles · CA

Multiple errors in safety warning and action systems such as the collision mitigation and warning system. For example, while driving on a four lane highway (undivided, no head-on traffic), my vehicle was in the far-right lane, 800-900 feet behind a truck in the left lane. The truck began slowing and moved into the wide left-hand turn lane leading to a signal controlled by a traffic signal. When I was about 2-300 feet behind the truck, now stopped (awaiting a left-turn light), the collision mitigation system flashed the word 'brake' in the heads-up display and went into full braking mode to the limit of the anti-skid system. There was no other traffic on the road within 3-3500 feet of the intersection. This has happened numerous times where the collision mitigation system went to full braking with no other vehicles possibly representing a danger. Numerous other warnings of the sensors alert at random. Most recently, while stopped at an intersection with my foot on the brake ' the engine idle-stop system working (I.e., the engine was not operating) ' we received a warning to 'brake' and warning of approaching vehicles (which should not happen). We frequently get warnings of non-existent trafffic approaching from behind while sitting in a parking slot, transmission in park, parking brake on (or off, both). Cruise control was not used in any of these cases. There are dozens of other false warnings, both audio and visual, that do little more than to train us to ignore them, not a good attribute of any warning system. Backup collision sensors frequently alert to hazards which cannot be seen: I've actually shut down the engine, get out and looked to see if something like a shopping cart might have rolled into the vehicle's path, only to find nothing whatsoever behind the vehicle. Warnings are both in visual (word/graphics) and audio form.