The subject 2019 Acura MDX model includes the tech package which adds several safety features that function through a windshield mounted camara/radar. The system has malfunctioned and none of the safety features are working. The dash displays the following messages: Collision Mitigation System Problem Adaptive Cruise Control Problem Lane Keeping Asist Problem Road Departure Mitigation System Problem automatic headlight system problem At the bottom of the dash, I see Brake System, Crash Warning and Lane Departure lights on as well. Acura is charging $2,319 to replace this unit in addition to a $270 diagnostic fee. This issue is widely reported as a significant issue in several model years for the MDX and should be part of a safety recall. The Acura technician acknowledged this issue is common. I should add this is the second major electronic issue with this MDX within the last several months. The prior issue was multiple system failure warnings that Acura determined were caused by a faulty wiring harness at a $1,604 cost, plus a $255 diagnostic fee. Please note I am the original owner of the vehicle and it has never been in a collision. Additionally, the system has recently mistakenly activated the brakes at very low speed and warned against collisions with other vehicles traveling in the opposite direction while on a curve.
2019 Acura MDX: headlights failing or too dim
5 of the 193 complaints about the 2019 Acura MDX describe headlights failing or too dim.
- owner complaints
- 5
- of this car's complaints
- 3%
- recalls
- 2
Headlights failing or too dim by model year
What owners say
The front camera responsible for forward collision warning and lanekeep has failed. The camera has part number 36160-TYR-A02. It failed on it's own but it could have been alot worse if it failed before a collision occurred. The dealer and independent repair shop said it was the camera code U3000-49 and this was an out of pocket repair. The symptoms include having these error messages on the gauge cluster. Adaptive Cruise, Lane Keep Assist, Road Departure, Collision Mitigation, and Auto High Beam Problem. At first it would intermittently show up but then after a while those errors would not go away.
The windshield camera suddenly failed one day while driving and it ended up disabling all the driver assist systems including the emergency braking, lane keep assist, forward collision, auto high beam, cruise control etc. Over the next few weeks the system kept randomly working and failing during driving every few hours or minutes. The discussion forums are filled with people complaining about the same issue with ALL Honda and Acura vehicles starting 2013 where they camera suddenly fails and then start working intermittently until it eventually fails. It seems Honda is using the same defective camera across all it's Honda and Acura models which is a big safety hazard and they refuse to acknowledge the issue.
The headlight assemblies to my vehicle have become defective. The headlight assembly, both right and left, has moisture intrusion within the headlight assembly, creating condensation build-up inside the housing. This issue also caused the headlights to become white and hazy in appearance. I was advised by the dealer that this would lead to failure with the lighting and would have to be replaced. I purchased a certified used vehicle with Tustin Acura in August of 2022 and also purchased an extended warranty for piece of mind. In the 2 1/2 years that I have owned the vehicle, I have added about 25k miles and have always garaged the vehicle. When the issue was reviewed by the dealer, they refused to cover the problem under warranty and requested that I reach out to American Honda for further assistance. I did that but was denied and told the issue was caused by "outside influence," but provided no explanation as to what this meant. To me it felt like I was being blamed for clearly a defective issue. A Google search of this issues revealed to me that this was a common issue with 2019 Acura MDX vehicles. To replace the headlights would be a cost to me of nearly $3,000. it seems almost ridiculous to pay for clearly defective equipment. I fear that my inability to afford this great expense with lead to headlight failure that could result in a collision if this failure were to occur at night.
2019 Acura MDX A-Spec Started up the SUV and the following appears on the dash: ACC problem Collision Mitigation Problem Lake Keep Assist Problem Auto High Beam Problem Battery has been replaced and issue still exists. Cruise control does not work at all. "Break Problem" light remains lit.
Service bulletins that may apply
Related recalls
Interior lighting
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2014-2020 Acura MDX vehicles. Moisture may enter the tailgate lid light assembly and wiring harness, which can cause the interior and exterior lights to fail, including the lid lights, position lights, license plate lights and taillights.
- Risk
- Vehicle lights that fail to illuminate can decrease visibility and increase the risk of a crash.
- Remedy
- Dealers will inspect the wiring and install a fuse harness, replace the lid light, and repair the body dust sealer, as necessary, free of charge. Owner notification letters were mailed May 30, 2025. Owners may contact Acura's customer service at 1‑800‑382‑2238. Acura's number for this recall is FLI. Vehicles included in this recall that were previously repaired under the federal safety agency recall number 19V‑256 will need to have the new remedy completed.
Recall number 25V259000 · Recall details
Exterior lighting
- What is wrong
- Honda (American Honda Motor Co.) is recalling certain 2014-2019 Acura MDX and 2017-2019 Acura MDX Sport Hybrid vehicles. Moisture may enter the tailgate lid lights, possibly causing a loss of the tailgate lid lights and the taillights.
- Risk
- Loss of the taillights reduces the vehicle's visibility, increasing the risk of crash.
- Remedy
- Acura will notify owners, and dealers will modify the tailgate lid lights and install updated gaskets and a wiring sub-harness or will replace both tailgate lid lights. The repairs will be performed free of charge. The recall began May 7, 2019. Owners may contact Acura customer service at 1‑888‑234‑2138. Acura's number for this recall is M49.
Recall number 19V256000 · Recall details
Questions about the 2019 Acura MDX headlights
Is headlights failing or too dim a common problem on the 2019 Acura MDX?
5 of 193 owner complaints about the 2019 Acura MDX (3%) mention headlights failing or too dim. The model year with the most reports is 2020.
Is there a recall or service bulletin for this on the 2019 Acura MDX?
There are 2 recalls and 9 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2019 Acura MDX
Stalling 27Adaptive cruise 13Fuel pump 11Knocking 10Collision warning 9Jerking 9Lane assist 8Loss of power 7Won't shift 7Warning lights 7Check engine light 6Transmission failure 6Start-stop 5
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