Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2025 Acura MDX owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2025 Acura MDX. The contact stated that while driving approximately 30 MPH, the vehicle bucked for approximately 3-seconds before the vehicle stalled. The hazards were activated, the vehicle was turned off, and the contact waited before restarting the vehicle. While restarting the vehicle, several warning lights quickly flashed, and the vehicle failed to exceed 4 MPH while driving to the nearest parking lot. The vehicle was towed to the dealer, but was not diagnosed. The vehicle was not repaired. The contact became aware of NHTSA Campaign Number: 25V031000 (Fuel System, Gasoline, Electrical System); however, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 24,000. The VIN was not available.
The contact owns a 2025 Acura MDX. The contact stated that while the vehicle was stopped at a stoplight, the START/STOP system failed to operate as designed and the vehicle turned off unintendedly. The vehicle was restarted to continue driving. The vehicle was taken to the dealer, who replaced the starter and battery, and other unknown parts were also replaced. The failure reoccurred once while idling in stop-and-go traffic on the highway. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure, and a case was opened. The failure mileage was approximately 11,000.
The contact owns a 2025 Acura MDX. The contact stated that while at a stop, the vehicle lost automotive power, and all electrical features turned off. The vehicle was restarted and the battery warning light illuminated. The contact continued to drive the vehicle. The vehicle was taken to a local dealer where it was diagnosed, and the contact was informed that no cause for the failure was found. The contact stated that upon starting the vehicle, the vehicle was idling roughly. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 17,400.
The contact owns a 2025 Acura MDX. The contact stated that while at a complete stop at a traffic light, the vehicle unexpectedly shut off and failed to restart. After approximately 15 minutes, the vehicle restarted, and the contact drove into a parking lot before driving to the residence. No warning lights illuminated. The dealer was notified of the failure the following day, and a service appointment was scheduled. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 14,000.
Incident 1 (Loss of Propulsion in Traffic) - 12/16/25 The vehicle failed to restart immediately after the auto start-stop system attempted to re-engage the engine. Upon attempting to accelerate, the engine did not restart, resulting in a complete loss of propulsion while in active traffic. The vehicle became temporarily inoperable and unresponsive, creating a hazardous condition with elevated risk of rear-end collision and inability to safely clear traffic or intersections. Incident 2 (Failure to Start - Reliability Concern) - 4/1/26 On a separate occasion, the vehicle failed to start entirely upon initial startup (first use of the day). The engine did not turn over as expected, rendering the vehicle inoperable. This incident raises significant concerns about system reliability and dependability, particularly given its occurrence independent of the auto start-stop event. …
Last year, my 2025 Acura MDX was repaired under warranty for a known starter issue that is affecting all 2025+ MDX models. The issue is that the vehicle will stall or fail to start on random occasions leaving drivers stranded or stopped in traffic unable to move their vehicle. Honda and Acura are well aware of the fact that this is an issue, yet they continue to produce these vehicles with the same parts. This repair took several attempts and the dealership refused to even diagnose the issue for several months causing me to have to record each instance on my phone for proof. Once they eventually replaced the starter, the issue went away for approximately 10 months. Today, however, I was temporarily left stranded at a gas pump as my vehicle would not start. …
My 2025 Acura MDX suffers from a severe safety defect regarding the Auto Idle Stop (auto start-stop) system. When the vehicle comes to a complete stop at intersections or traffic lights, the engine shuts off as intended. However, upon releasing the brake pedal to accelerate, the engine completely fails to auto-restart.Instead of restarting, the vehicle drops out of the auto-restart sequence entirely, shifts itself out of drive, and displays a critical safety message on the dashboard: "To start engine: Brake + Push".This completely strands the vehicle in live traffic, forcing me to manually shift into Park, press the foot brake, and push the engine start button while traffic accumulates behind me. This creates an immediate rear-end collision hazard.The dealership has already attempted to diagnose and repair this issue under warranty by replacing both the vehicle's battery. …
2025 Acura MDX Aspec Advanced - Experienced 3 instances of failure to restart after engine idle shutoff or normal shutoff. Periodically starting the vehicle makes a buzzing or resistance type of sound, but usually will start. 1) 8/8/2025 Returning from shopping turned off vehicle in driveway to open hatch to unload items. Upon re-entering the vehicle (~5 mins) the push start failed to start - engine sounded sluggish first attempt and failed to start. Subsequent button presses just made a clicking sound. Had to fully turn off vehicle and back on and it started. 2) 10/10/2025 Returning from a wedding and getting off the expressway to a traffic light the auto stop/idle stop turned off the engine. Once the light turned green the vehicle failed to restart multiple times. …
2025 Acura MDX - Auto Idle Stop Failure to Restart When my 2025 Acura MDX is stopped at a traffic light and the Auto Idle Stop system activates, the engine shuts off but on multiple occasions has failed to restart when traffic begins moving. The vehicle becomes immobilized in an active traffic lane. Vehicles behind me begin moving and honking while I am unable to move the vehicle. To regain operation, I have had to completely shut the vehicle off and restart it while stopped in traffic. I can prevent the occurrence by manually disabling Auto Idle Stop after starting the vehicle, but this requires me to remember to disable the system every time I drive. If I forget, I risk the vehicle shutting down and failing to restart at an intersection. This creates a serious safety concern for me and my passengers, including my child. …
I was stopped at a red stop light waiting to turn left when my 2025 Acura MDX engine auto-stopped per the auto-stop feature. When the light turned green, I removed my foot from the brake and pressed the gas. The engine did not auto-start and displayed a message on the dash telling me to depress the brake and press the ignition button to continue driving. I did this several times, each time the dash would go black for a few seconds then come back up with the same message. Eventually, after getting the car to completely turn off, waiting 30 seconds, and restarting it, I was able to get the engine to start. While all of this was happening, I was passed unsafely by several angry drivers who were behind me, including one who tried to cut around me after I was able to get the car restarted, nearly clipping the front-right corner of my vehicle. …
Electrical complaints in other MDX years
Frequently asked questions
How common are electrical problems on the 2025 Acura MDX?
NHTSA has 52 complaints about the electrical system of the 2025 Acura MDX, 47% of the model year's 111 complaints.
Is there a recall for 2025 Acura MDX electrical problems?
No. NHTSA lists no electrical system recall for the 2025 Acura MDX, though it has 3 recalls for other components. If the problem is widespread, a repair may still be covered by an extended warranty or a manufacturer service bulletin — ask a dealer.
At what mileage do 2025 Acura MDX electrical problems start?
Half of the complaints with a recorded mileage happened before about 17,000 miles, and 100% before 25,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.