2018 Acura MDX electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Oct 6, 2026277,000 miILElectrical System

   Odometer Fraud. The contact purchased a 2018 Acura MDX on August 26, 2026. While registering the vehicle, the contact was informed that the previous title indicated that the odometer was reported at 277,000. The vehicle was a private sale. At the time of purchase, the mileage was 77,000.

   NHTSA complaint #11769279 · source
2. Filed Jul 10, 2026HIElectrical SystemEngineTransmission & Drivetrain

   Transmission failed and light appeared. Speed reduced from 30 to 15. Acura stated they had to reset computer system and claimed when they started the car no lights shown and was able to reverse car. I was unable to reverse car, struggled and tugged feeling in the car. This is the 2nd time and they always repeat same solution no lights appeared and to reset system.

   NHTSA complaint #11749662 · source
3. Filed Apr 9, 2026225,802 miMABrakesElectrical SystemEngine

   Odometer Fraud. The contact purchased a 2018 Acura MDX. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 85,000. The contact stated that on the day of the purchase; after refueling the vehicle and then attempting to pull out of the gas station, the Emissions, check engine, and parking brake warning lights illuminated on the instrument panel. The contact took the vehicle to an auto repair shop, and…

   NHTSA complaint #11730103 · source
4. Filed Mar 19, 2026GAElectrical SystemEngineFuel, Hybrid & EV Propulsion

   I was merging into traffic on interstate. The car lagged as if it wasn't getting gas. I pulled over to get out of traffic. Scary situation. Please advise!

   NHTSA complaint #11725517 · source
5. Filed Mar 15, 2026OHBrakesElectrical SystemLighting

   Hello, My 2018 Acura MDX has moisture and water inside the inner tailgate (trunk) tail light assembly, which caused the light to stop working. I understand there is a recall affecting some 2014–2020 Acura MDX vehicles related to moisture entering the tailgate light assembly, and my vehicle appears to have the same issue. Recall link: [XXX] Last week I visited the Acura dealership(Acura Columbus) in Dublin, OH for a fuel pump recall service. During that visit, the technician…

   NHTSA complaint #11724508 · source
6. Filed Aug 22, 202547,000 miORElectrical System

   The contact owns a 2018 Acura MDX. The contact stated that the vehicle was designed with the engine Auto Start-Stop feature. The contact stated that while at a complete stop and releasing the brake pedal, the engine failed to restart. The contact attempted to restart the vehicle, but the vehicle failed to restart. The contact then noticed that the gear shift indicator displayed that the transmission was in neutral(N). The contact shifted to park(P) and was able to restart…

   NHTSA complaint #11682441 · source
7. Filed Jul 20, 2025SCElectrical System

   The car alarm started going off randomly after the car was locked and armed. This would happen periodically. The car was locked using the indoor lock and then left unlocked and the lights would go off and on periodically. The internal dash periodically would flicker off and on (dash lights/screens). The car eventually drained the battery one night cycling down to 4.25v and had to be replaced (it was too damaged to be jumped). Upon replacing the battery codes were read,…

   NHTSA complaint #11674866 · source
8. Filed Apr 25, 2025MSDriver Assistance & Safety TechElectrical System

   Lane Keep assist, adaptive cruise control, forward collision warning all stopped working and received error codes. Dealership stated camera was faulty and needed to be replaced at my cost. Continued issues with electrical systems where the car alarm will go off intermittently, and vehicle will not lock unless manually locking. Dealership stated smart control unit needs to also be replaced at my cost. part number for control unit #38320 was issued by honda motor company…

   NHTSA complaint #11656721 · source
9. Filed Oct 12, 2024CADriver Assistance & Safety TechElectrical System

   We experienced multiple/many warning lights all at the same time. Systems not working. Repeated every time. The Acura dealer diagnosed the problem to the DTC U3000-49 Multipurpose Camera internal electronic failure. Replaced the unit and they performed a couple of calibrations. Thank You, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint #11619471 · source
10. Filed Sep 3, 2024MADriver Assistance & Safety TechElectrical SystemFuel, Hybrid & EV Propulsion

    1.) I have had repeated, on-going issues with the fuel propulsion system since the day I bought the car. When I step on the accelerator it randomly (lately more constant than random) does not respond, then it will shoot me out into traffic. For example when I am entering the highway from an onramp, I see my opportunity to merge into traffic and I step on the gas - nothing - no response, then it suddenly accelerates and shoots me into oncoming traffic. This is SO BAD that I…

    NHTSA complaint #11612317 · source
11. Filed Feb 8, 2024FLElectrical SystemEngineFuel, Hybrid & EV Propulsion

    On February 7 at 2:30 I came home, and my car was unable to turn off. I’ll try several times to turn off the car by pressing the on and off button. While driving back to work, the car change gear from being in Drive, and it went into neutral while I was driving. I was able to pull over and I was able to turn off the car by pressing the button. The entire dashboard lights came on with all the different symbols . I was able to exit the carr. I told my car to a local repair…

    NHTSA complaint #11570908 · source
12. Filed Jan 9, 2024PAFireElectrical System

    Fire under the hood of my 2018 MDX - caused by weak battery and overloaded starter. My car was parked in the garage right under my daughter’s bedroom. I pressed the "Start" button on the car and the dashboard started to flash on and off quickly and I heard clicking sounds and other swooshing noises. The car did NOT start but it seemed to keep trying over and over again. I pressed the start/off button repeatedly but the car did not shut off. My wife came out and asked what I…

    NHTSA complaint #11564499 · source

Source: U.S. National Highway Traffic Safety Administration (NHTSA) Office of Defects Investigation public data. Complaints are submitted by owners and are not verified by NHTSA or by us; a complaint does not prove a defect exists. View this vehicle on NHTSA.gov Methodology