2019 Acura MDX

188 complaints on file, page 1 of 10.

1. Filed Sep 17, 2026Failure Sep 16, 2026Lansdale, PAEngine, Fuel/propulsion system

   issue occurring with automatic start/stop function. car stalls on occasion trying to restart, goes into neutral, even though battery is new and in good condition. hard to replicate and occurs randomly. car has to be turned off and on again. this is the 4th time this has happened over the course of 3 years. seems to be happening to others based on forums as well.

   NHTSA complaint 11764975
2. Filed Sep 17, 2026Failure Aug 6, 2025Lansdale, PAElectrical system, Adaptive cruise control, Warning

   the camera system located above the rear view mirror failed and caused a warning light for the lkas system. adaptive cruise control, lane keeping did not work because of it. the unit had to be replaced. this seems to be a fairly common issue with this mdx version, based on forums

   NHTSA complaint 11764964
3. Filed Sep 15, 2026Failure Sep 10, 2026Hartford, CTElectrical system

   Alarm randomly goes off dash lights up on its own and kills the battery Was told it’s the keyless module

   NHTSA complaint 11764352
4. Filed Aug 21, 2026Failure Aug 11, 202660,000 milesSouth Jordan, UTFuel system, Gasoline

   The contact owns a 2019 Acura MDX. The contact stated that while driving at an undisclosed speed, several unknown warning lights illuminated, and the vehicle stalled. The contact was able to drive to the residence after the failure. An independent mechanic was contacted and attributed the failure to the fuel pump. The contact associated the failure with NHTSA Campaign Number: 23V858000 (Fuel System, Gasoline); but the vehicle was repaired under the recall approximately 2 years ago. The contact stated that the failure was caused by an improper recall repair. The dealer was contacted and diagnosed the vehicle with fuel pump failure. The contact was informed that the fuel pump replacement only had a 12-month warranty. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 60,000.

   NHTSA complaint 11758558
5. Filed Aug 19, 2026Failure Aug 10, 202675,000 milesTucson, AZSeats

   The contact owns a 2019 Acura MDX. The contact stated that while driving at various speeds, the driver’s and passenger’s side front seats shifted unexpectedly. The contact stated that there was an abnormal popping sound coming from the center of the seat backrest, which was felt in the seat. The vehicle was not diagnosed or repaired. The dealer was notified of the issue and confirmed that the VIN was not under recall. The manufacturer was not notified of the failure. The failure mileage was approximately 75,000.

   NHTSA complaint 11757986
6. Filed Jul 22, 2026Failure Jun 16, 2026Sugar Land, TXElectrical system, Unknown or other

   Car shifted on its own from drive to park right after warning lights stating Electrical Parking System then Emissions the Transmission came on while in stop and go traffic. Car had just come back from Acura mechanic 4 hours earlier as these warning lights had come when starting car. Immediately had car towed to dealership.

   NHTSA complaint 11752240
7. Filed Jun 26, 2026Failure Jun 19, 2026Bay Shore, NYAdaptive cruise control, Warnings, Assist

   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.

   NHTSA complaint 11746803
8. Filed Jun 24, 2026Failure Jun 10, 2026Mckinney, TXElectrical system, Power train

   While driving, the vehicle experienced a sudden internal mechanical and electronic transmission failure. Without warning, the vehicle shifted itself directly into Park while navigating the busy intersection of [XXX] and [XXX]. This caused a complete loss of propulsion and left the vehicle entirely immobilized in the middle of a high-speed junction. The vehicle could not be moved, creating an immediate, severe highway safety hazard that required an emergency 911 police response to manage traffic and protect the vehicle from being rear-ended. The dealership scan tool later pulled diagnostic code P0730 (Incorrect Gear Ratio) along with multiple clutch performance failures (P07A4, P07A2, P07A8). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11746202
9. Filed Jun 22, 2026Failure May 31, 2026Aurora, COFuel/propulsion system

   On [XXX], while traveling at highway speeds on [XXX], the vehicle suffered a sudden, complete loss of engine propulsion. The vehicle rapidly decelerated, refused to respond to accelerator input, and forced itself into a dangerous "Limp Mode" in live traffic, creating an immediate highway safety hazard. Multiple warning messages illuminated on the dashboard. The vehicle was towed to Mile High Acura under Repair Order #[XXX]. Diagnostic testing pulled stored Code P0087 for Low Fuel Pressure at the Fuel Rail. An inline fuel pressure gauge confirmed that the low-side fuel pressure was rapidly fluctuating between 55 and 64 PSI at idle. The dealership escalated the data to the Acura Corporate Tech Line (Ref #[XXX]), which reviewed the vehicle's onboard snapshot data and officially determined a terminal defect in the low-pressure fuel pump assembly, mandating the replacement of the low-side pump and both fuel relays. Dealership service records confirm that this vehicle previously had a low-pressure fuel pump recall performed in 2021 under NHTSA Campaign Number 21V-215 (Acura Code CAI). The sudden failure of this replacement component matches the exact failure conditions detailed in the subsequent NHTSA Campaign Number 23V-858 (Acura Codes KGC/KGD). In that expanded campaign, American Honda Motor Co. openly admitted to federal regulators that the early replacement "service parts" distributed and installed during the 21V-215 window were manufactured with the exact same defective, swelling density impellers prone to subsequent deformation and complete failure. Despite their own corporate Tech Line explicitly confirming that the root cause of this dangerous highway power loss was the low-pressure fuel pump—the exact component of the 21V-215 and 23V-858 safety recall campaigns—Acura Client Relations denied 100% safety remedy coverage. Acura refused to provide the technical basis for their denial in writing. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

   NHTSA complaint 11745700
10. Filed Jun 15, 2026Failure Apr 3, 2026Wichita, KSAutomatic emergency braking, Adaptive cruise control, Warnings

    On 04/03/2026, 6:04 PM, Acura MDX 2019, Base, SH-AWD, at 105,254 miles on the odometer, posted U3000-49 control module internal electronic failure. The fault appears to be at the 36160-TYS-A02 camera assembly monocular results in a series of cascading errors on the dash with indicators on for LKAS (Lane Keeping Assist), ACC (Adaptive Cruise Control), CMBS (Collision Mitigation Brake System), brake and transmission warning lights that blink continuously. The sudden lost of safety system especially at highway speeds places extreme risk to occupants of vehicle and other drivers sharing the roadway. The current TSB 23-008 does not repair fault, origin of fault not software, but requires replacement of front camera assembly (36160-TYS-A02) and recalibration at owner expense. There appears to be a lot of 36160-TYS-A02 camera monocular that either have insufficient solder, cold solder, bad crimps or otherwise that over time results in failure.

    NHTSA complaint 11744263
11. Filed Jun 15, 2026Failure Jun 12, 2026Essexville, MIElectrical system, Fuel/propulsion system, Service brakes

    Under normal driving conditions warning lights for "electric parking brake" and "emissions system problem" came on the dashboard and the 'brake' light began flashing. No change in performance. Auto parts store diagnostic indicated EVAP valve as the possible problem code, along with two other unrelated codes - none connected to brakes or emissions. The 12-volt battery tested strong. Drove another 100 miles with lights still on, but the 'brake' light would turn off after about 5 mins of highway driving/no braking. The next day the warning lights continued. After normal city driving I shut the car off, waited 30 seconds, pushed the start button twice (accessory mode) and held the brake pedal down while pulling up on the brake release button for 10 seconds. Started the car without any error messages.

    NHTSA complaint 11744197
12. Filed Jun 3, 2026Failure May 18, 2026Ewa Beach, HIAdaptive cruise control, Assist, Unknown or other

    When I was at 41,528 miles, May 18, the LKAS, ACC & RDMS errors all turned on at the same time. So those systems just stopped working randomly. When I restarted the car, all errors turned off but it turned on again after 10 days, May 28 with 91,966 miles. I brought it to the Acura dealership and they couldn't replicate it. I think this is an issue because one of the highlights of this car is safety but at random times, those safety systems suddenly stops working and the dealership couldn't do anything about it.

    NHTSA complaint 11741836
13. Filed May 28, 2026Failure Jan 1, 2025Odenton, MDSuspension

    Clunking or Looseness in the Outer Tie Rod. The issue is related to TSB-B23-019 Bulletin. The exact same issue is occurring that has happened with years 2022-2023. I have had at the dealership to fix the issue and they never mentioned the outer tie rod cotter pin or castle nut loosening.

    NHTSA complaint 11740641
14. Filed May 6, 2026Failure Feb 7, 2026Kennesaw, GAEngine, Fuel/propulsion system

    I am reporting a recurring safety issue following the Acura rod bearing recall repair on my 2019 Acura MDX SH-AWD. The original recall resulted in catastrophic engine failure and Acura replaced the long block assembly. Since that repair, the vehicle has repeatedly failed and returned to the dealership multiple times for the same issue pattern. Symptoms include: * “Emissions System Problem” warning * SH-AWD, brake, and traction control warnings * strong raw gasoline odor * vehicle becoming undriveable/no-start Timeline: * Recall repair completed with long block replacement * Vehicle failed again the next day * Dealer repaired vehicle * Vehicle failed again about one month later * Dealer repaired vehicle again * Vehicle failed a third time about one week later during normal commuting The recurring failures are accompanied by a strong gasoline smell, creating concern about fire risk and vehicle safety. I regularly transport children in this vehicle and no longer have confidence in the safety or reliability of the recall repair. The dealership has continued repairing the vehicle and providing loaners, indicating the issue is related to the original recall repair, but the underlying problem has still not been resolved despite multiple repair attempts. I am submitting this report because the recall repair has not resulted in safe and reliable vehicle operation.

    NHTSA complaint 11736180
15. Filed Apr 9, 2026Failure Mar 15, 202672,692 milesOrlando, FLPower train

    The contact owns a 2019 Acura MDX. The contact stated while driving at an undisclosed speed and depressing the accelerator pedal, the vehicle failed to accelerate as intended and to exceed 5 MPH. The vehicle was driven to the shoulder of the roadway. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The contact did not agree with the diagnosis. The contact stated that the failure was a known failure with the vehicle. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 72,692.

    NHTSA complaint 11730121
16. Filed Apr 8, 2026Failure Sep 1, 2025Lawrence, KSSeats

    The drivers seat is lose and can be felt and heard making noise when driving, even at low speeds. It shifts back and forth upon acceleration and deceleration. Ive had a mechanic look at it and determine it is in fact shifting around while driving, which is extremely unsafe. Upon further research found that many othet Acura/Honda users have had the same issue especially in the MDX model mentioned here. Its even been reported by dealers in brand new, still in the showroom MDX. It is clearly not a wear and tear issue and needs a recall to be addressed.

    NHTSA complaint 11729871
17. Filed Apr 2, 2026Failure Mar 25, 2026Cincinnati, OHElectrical system, Engine

    My car has stalled while driving on the highway multiple times now. The first time it happened, it lost power, stopped accelerating, and cycled through multiple warning lights, causing a significant safety risk. I pulled over and it restarted within minutes. I took it to a repair shop and they could not find a problem with it, even with the codes provided. Nothing pointed to a solution. It happened two other times while I was driving my child on a highway where it lost acceleration and then kicked back in. Again, this post, a significant safety risk as always in a fast lane on a highway with my child cars behind me had to hit their brakes to avoid me after this incident. Other times it doesn’t lose power, yet it cycles through warning lights randomly. I took it to the dealer instead of a local shop. They texted me about items that should be fixed per an inspection, including struts and a battery replacement. Complete with a large bill just for diagnostics. Yet, nothing was found having to do with the main problem at hand. Losing power while driving. . My battery is less than six months old. I had it tested and it is fine. My vin is not listed in the recall, but, all of the symptoms match the other recalls of the same year make and model.

    NHTSA complaint 11728714
18. Filed Mar 19, 2026Failure Mar 16, 2026Augusta, GAAir bags

    While driving at 25 miles an hour on a smooth curving road out of a housing area my wife who was driving and my grand daughter in the front passenger seat heard a loud boom that sounded like somthing hit the roof. My grand daughter looked into the back passenger area and said she saw a large buldge in the headliner near the back window on the drivers side. My wife continued driving saftly to the nearest parking lot and parked the vehicle, she got out and inspected the roof and found no dammage of any kind. she opened the back window tail gate and saw a large fist size buldge in the headliner near the open area on the drivers side. She had no idea what happened. There were no waring lights or indicators that indicated a problem and she drove home and showed it to me. When I saw it I thought it was a rear window or curtian air bag that tried to deploy but did not break through the headlinner. I have called the dealer and scheduled an appointment to check it out on thur March 26 at 09:00 2026. I verified that there are no indicators or warning lights that indicate a problem. The service department said it should be safe to drive until then.

    NHTSA complaint 11725634
19. Filed Mar 19, 2026Failure Sep 23, 2025Woodbridge, VAWarnings, Automatic emergency braking, Assist

    The front camera mounted near the rear view mirror stopped working which caused several systems to fail. Acura was slow to respond and was not able to complete the repair because the camera was backordered for several months.

    NHTSA complaint 11725506
20. Filed Mar 9, 2026Failure Sep 2, 2025Fayetteville, NCAdaptive cruise control, Warning, Assist

    Constant errors in dash. Cruise control fails while driving. Auto braking no longer works. Warning of other vehicles in blind spots does not work anymore. Many error in dash display regarding the camera and lkas are displayed.

    NHTSA complaint 11722953