2019 Acura Mdx problems, complaints & recalls
Most-reported problem areas: Power Train (30) · Fuel System, Gasoline (21) · Engine (17)
🧭 Reliability snapshot
Compared against other Acura Mdx model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
53 NHTSA complaints that reported an odometer reading.
Safety recalls (9)
Suspension:rear 2026-06-04 · campaign 26V365000 · 965,561 vehicles
Defect: American Honda Motor Company (Honda) is recalling certain 2016-2022 Honda Pilot, 2017-2023 Ridgeline, 2019-2023 Passport, and 2014-2020 Acura MDX vehicles that were sold in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear subframe may corrode at the suspension mounting points,
Risk: Failure of rear suspension components, such as the rear control arm, can cause a loss of vehicle handling and control, increasing the risk of a crash or injury.
Fix: Dealers will inspect the rear subframe and install a rear subframe reinforcement kit and, as necessary, repair or replace the rear subframe components, free of charge. Interim letters notifying owners of the safety risk were mailed July 27, 2026. Additional letters will be sent once the final remedy is available, anticipated in the fall of 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are AOU and AOT. Vehicle Identification Numbers (VINs) in
Air Bags:sensor:occupant Classification:front Passenger 2026-05-21 · campaign 26V332000 · 98,892 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2018-2021, 2023 Acura TLX, 2019-2024 RDX, 2017-2020, 2022-2026 MDX, 2017-2021, 2023, 2025 Honda Ridgeline, 2017-2022 Pilot, 2019-2021 Passport, 2018-2026 Odyssey, 2019-2022 Insight, 2019-2021 HR-V, 2018-2020 Fit, 2020-2022 CR-V Hybrid, 2017-2022 CR-V, 2017-2018, 2021 Civic Type R, 2017-2021 Civic hatchback, 2016-2020 Civic coupe, 2016-2022 Civic, 2017-2022 Accord Hybrid, and 2016-2022 Accord vehicles. The front passenger seat weight sensor ma
Risk: Air bags that deploy unintentionally during a crash increase the risk of injury.
Fix: Dealers will replace the seat weight sensors, free of charge. Owner notification letters were mailed July 7, 2026. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are BOL, WO9, OOA, WOM, XOH, NOC, POD, BOE, UOF, POB, EOG, AOI, QO8, TOJ, DO7, and SOK. This recall expands previous NHTSA recall number 24V064. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning May 29, 2026.
Interior Lighting 2025-04-17 · campaign 25V259000 · 152,800 vehicles
Defect: 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.
Fix: 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 NHTSA recall number 19V-256 will need to have the new remedy completed.
Fuel System, Gasoline:delivery:fuel Pump 2023-12-18 · campaign 23V858000 · 2,490,460 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2013-2023 Honda Accord, Civic Coupe, Civic Sedan, Civic Hatchback, Civic Type R, CR-V, HR-V, Ridgeline, Odyssey, Acura ILX, MDX, MDX Hybrid, RDX, RLX, TLX, 2019-2022 Honda Insight, Passport, 2020 Honda CR-V Hybrid, 2018-2019 Honda Clarity PHEV, Fit, and 2015-2020 Honda Accord Hybrid, Pilot, Acura NSX vehicles. The fuel pump inside the fuel tank may fail.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Fix: Dealers will replace the fuel pump module, free of charge. Owner letters were mailed September 6, 2024. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are KGC and KGD. This recall is an expansion of NHTSA recall numbers 21V-215 and 20V-314.
Engine And Engine Cooling:engine:hard Parts Internal/Mechanical 2023-11-13 · campaign 23V751000 · 248,999 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and 2018-2019 Odyssey vehicles. Due to a manufacturing error, the connecting rod bearing in the engine may wear and seize, damaging the engine.
Risk: A damaged engine may run improperly or stall while driving, increasing the risk of a fire, crash, or injury.
Fix: Dealers will inspect and repair, or replace the engine as necessary, free of charge. Owner letters were mailed March 28, 2024. 2016-2017 Acura MDX owner letters were mailed November 1, 2024. 2016-2020 Acura MDX owner letters are expected to be mailed in mid-December 2024. Honda began mailing owner notification letters as of March 18, 2024. 2015-2016 Acura owner letters are expected to be mailed mid-December 2024, 2018 Acura TLX owner letters are expected to be mailed the end of March/early Apr
Fuel System, Gasoline:delivery:fuel Pump 2021-03-25 · campaign 21V215000 · 624,552 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2019-2020 Acura MDX, MDX Sport Hybrid, RDX, TLX, Honda Accord, Civic Hatchback, Insight, 2019 Acura ILX, Honda Accord Hybrid, Civic Coupe, Civic Coupe Si, Civic Sedan, Civic Sedan Si, Civic Type R, Fit, HR-V, Odyssey, Passport, Pilot and Ridgeline, and 2018-2019 CR-V vehicles. The low-pressure fuel pump inside the fuel tank may fail.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Fix: Honda will notify owners, and dealers will replace the fuel pump assembly, free of charge. Owner letters were mailed May 18, 2021. Owners may contact Honda customer service at 1-888-234-2138. Note: This recall is an expansion of recall 20V-314.
Engine And Engine Cooling:engine:gasoline:belts And Associated Pulleys 2019-04-12 · campaign 19V298000 · 93,946 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura MDX and Honda Pilot vehicles and 2019 Acura RLX, RLX Sport Hybrid, TLX and Honda Odyssey and Ridgeline vehicles. The timing belt teeth may separate from the belt.
Risk: Teeth separation from the timing belt may result in an engine stall, increasing the risk of crash.
Fix: Honda will notify owners, and dealers will inspect the vehicle and replace any affected timing belt free of charge. Vehicles receiving a replacement timing belt will also have the engine inspected and any damaged components will be replaced for free. The recall began June 7, 2019. Honda owners may contact customer service at 1-888-234-2138. Honda's number for this recall is L4M. Acura owners may contact customer service at 1-888-234-2138. Acura's number for this recall is Z4L.
Exterior Lighting 2019-03-28 · campaign 19V256000 · 322,897 vehicles
Defect: 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.
Fix: 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.
Service Brakes, Hydraulic:foundation Components:disc:caliper 2018-11-01 · campaign 18V777000 · 64,785 vehicles
Defect: Honda (American Honda Motor Co.) is recalling certain 2017-2019 Acura MDX, 2017-2018 Acura MDX Sport Hybrid, 2018-2019 Honda HR-V and Honda Odyssey, and 2016 Honda HR-V vehicles. The rear brake caliper pistons may have an insufficient coating, causing gas pockets to form, reducing brake performance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 135, "Light Vehicle Brake Systems."
Risk: A reduction of braking performance increases the risk of a crash.
Fix: Owners will be notified, and Honda or Acura dealers will bleed the brakes, free of charge. The recall began December 11, 2018. Owners may contact Honda customer service at 1-888-234-2138. Honda's numbers for this recall are C31 and L30.
Service bulletins (132)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Fuel/Propulsion System 2026-01-31 · ONL6AX01302026 · Other
owner notification letter - under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. acura is providing a product update with a new pgm-fi software update to fix this issue.
Visibility/Wiper 2025-09-04 · B25-003 · Service Bulletin/Repair Instructions
service bulletin - an uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.
Visibility/Wiper 2025-07-09 · B25-003 · Service Bulletin/Repair Instructions
service bulletin - an uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.
Engine 2025-07-07 · B23-002 · Service Bulletin/Repair Instructions
service bulletin - under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or low cranking torque. typically, the client can immediately restart the vehicle by selecting park and pressing the engine s
Exterior Lighting 2025-06-05 · ONL6L806042025 Form · Other
owner notification letter - an uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.
Exterior Lighting 2025-06-05 · ONL6L806042025 Letter · Other
owner notification letter - an uneven sealing surface allows moisture to enter the inner taillight(s), causing one or both of the inner taillights not to work.
Showing the 6 most recent of 132 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-27 · Engine And Engine Cooling · 90,000 mi“the contact owns a 2019 acura mdx. the contact stated that while operating the vehicle, the engine failed to restart after the auto start/stop was engaged. the contact stated that while at a stop light, the engine failed to automatically restart after releasing the brake pedal. the contact shifted to park(p) and restarted the vehicle. the contact s…”
2026-10-26 · Power Train“on saturday 10/24/26 at approximately 6:45 pm i pulled into my garage and pressed the engine button to shutdown the car after parking in my home garage. i was about to open the door and exit when the engine started again. i shutdown the engine once again and safely exited the car with my 13year old daughter. i returned within 15 minutes and atte…”
2026-10-08 · Lane Departure: Warning“many customers complained about the lkas camera overheating and faulty.…”
2026-10-07 · Engine“dec. 16, 2025, took acura into the dealership because check engine light kept coming on. they did a full inspection and said i needed to have the purge valve replaced and that it was nearing time to have other services: transmission service, front transfer case, rear differential, brake fluid, timing belt, spark plugs, fuel service. took the diagno…”
2026-09-17 · Lane Departure: 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…”
2026-09-17 · 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 f…”
2026-09-15 · Electrical System“alarm randomly goes off dash lights up on its own and kills the battery was told it’s the keyless module …”
2026-08-21 · Fuel System, Gasoline · 60,000 mi“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…”
2026-08-19 · Seats · 75,000 mi“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…”
2026-07-22 · 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. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.