2025 Acura MDX electrical system problems

Related recalls

No recalls on file.

What owners say

1. Filed Oct 8, 2026PAElectrical SystemEngineOther / Unknown

   On two occasions my vehicle stalled out when the idle stop feature failed to restart the engine in traffic. I could not restart my vehicle initially and it took several attempts to restart. Because I was at a stop in an intersection waiting to turn this could have resulted in a serious accident. There was no warning light or other indication of an issue prior to, during, or after the first incident. This was subsequently reproduced and documented with the dealer. They…

   NHTSA complaint #11769975 · source
2. Filed Sep 28, 2026CAElectrical SystemEngine

   The Auto Idle Stop has activated normally at traffic lights, but on two occasions the engine shut off and then failed to automatically restart when I released the brake. A yellow warning light with an exclamation mark also appeared on the dashboard. The most recent incident happened yesterday, 09/25/2026. There have also been several other times when the engine did restart, but it took noticeably more effort or longer than normal to restart from Auto Idle Stop.

   NHTSA complaint #11767472 · source
3. Filed Sep 26, 2026MDElectrical SystemEngineTransmission & Drivetrain

   My 2025 Acura MDX completely stalled in active roadway traffic and failed to restart. The failure occurred during a routine stop in traffic, tied to the Auto Idle-Stop / restart sequence: when releasing the brake pedal to accelerate, the engine did not restart, leaving the vehicle completely dead and stranded in the travel lane, creating a severe risk of a rear-end collision. I brought the vehicle to an authorized Acura dealership for repair. The dealership diagnosed the…

   NHTSA complaint #11767195 · source
4. Filed Sep 16, 2026TXElectrical SystemEngine

   I own a 2025 Acura MDX A-Spec purchased in XXX from John Eagle Acura in [XXX]. The vehicle has less than 10,000 miles. Component/system: The Auto Idle Stop/start system has malfunctioned. During the past week, the engine unexpectedly shut off while stopped at red lights and stop signs approximately 4–5 times. When it was supposed to restart, the vehicle sometimes failed to restart normally and required multiple attempts. The vehicle and components are available for…

   NHTSA complaint #11764853 · source
5. Filed Sep 15, 2026NHElectrical System

   Auto Start/Stop At stop light car wouldn’t start after engaging Auto Start/Stop, had to turn on hazards, turn car off and restart with cars bearing down on me Monday 9/14, before entering traffic I stopped and Auto Start/Stop engaged but car wouldn’t start Got a jump and brought to dealership and they replaced starter motor

   NHTSA complaint #11764541 · source
6. Filed Sep 12, 2026MAElectrical System

   Auto start-stop system stalled my car at a red light few times. Also I can clearly tell starting/cranking it is lagging as well.

   NHTSA complaint #11763829 · source
7. Filed Sep 10, 2026OHElectrical System

   Car at a stop light, went into idle stop, and then shut off with an error message that to continue to drive, depress brake pedal and push switch. Car then needs to be restarted. This has happened 3 times in less than a week, so it is becoming concerning as a safety issue. The issue seems to be related to the starter and idle stop feature.

   NHTSA complaint #11763310 · source
8. Filed Sep 10, 2026MSBrakesElectrical System

   20 minutes after parking my car, it would not start. Several different codes came up on the gauges - BRAKE issue; hill issue;stabilization issue - multiple icons and warnings. I ended up having to be jumped off.

   NHTSA complaint #11763280 · source
9. Filed Sep 9, 2026PAElectrical System

   Occassionally when the "auto stop start" feature is on and I am stopped at traffic light, the engine does not restart when I release the brake and hit the gas pedal. I took my car into my local dealer and they replaced battery but I was also advised that I might not want to use the "auto stop start" feature because it is a real drain on battery. Even with the new battery, I have experienced failure of the car to restart after being stopped in traffic while the "auto stop…

   NHTSA complaint #11762996 · source
10. Filed Sep 8, 2026NYElectrical SystemFuel, Hybrid & EV Propulsion

    Auto Stop/Start fails to restart intermittently causing dangerous situations stuck at lights unable to move. Sometimes it restarts again after pressing the brake and ignition right away. Sometimes it takes a minute to restart. Either way it happens unexpectantly leading to being frozen until you figure out what is going on.

    NHTSA complaint #11762658 · source
11. Filed Sep 1, 2026MSElectrical SystemEngine

    When at a red light the engine cuts off and does not restart when foot comes off the brake. Sometimes it takes several minutes to start. We were stuck in an intersection and almost were rear ended. Took it ti the dealership. had a new battery up in. By the time we got home, it did it again. Took it back to the dealership, they replaced the started. No problems for 4 months. Now it is doing the same thing again, along with the air conditioner not cooling. The first time we…

    NHTSA complaint #11761234 · source
12. Filed Aug 30, 2026LAElectrical SystemTransmission & Drivetrain

    The auto shutoff and restart system has failed multiple times causing the car to shutoff in the middle of traffic. This has happened in traffic on the interstate, on surface streets and in the drive thru line. Safety was put at risk as had to restart car in middle of traffic multiple times; once car would not restart at stop light. This could have caused an accident as vehicle was at a full stop with cars coming up from behind in the road. Dealer has replaced starter and…

    NHTSA complaint #11760772 · 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