Electrical System Problems of Acura MDX - part 1

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.

See all problems of the 2025 Acura MDX 🔎.

Car stalls at idle. Auto idle does not allow engine to restart from stop. Creating dangerous situations when on highway traffic, traveling around town and more. 2025 Mdx, 21,000 miles Nov 2025 at 14,500 miles reported issue after experiencing intermittently for a few months. Filters replaced, software updated Dec 2025 issue still occurring battery replaced March 2026 issue still occurring starter being replaced technician at dealership did not seem confident that replacing the starter will remedy this issue.

I am filing a complaint regarding my 2022 Acura Mdx type s with approximately 70,700 miles. The vehicle developed a suspension system warning, and upon inspection by an Acura dealership, I was informed that the suspension stroke sensor and floor wiring harness are corroded and require replacement. I was quoted approximately $12,000 for the repair. This failure is extremely concerning because the vehicle is only a few years old and this type of corrosion affecting a major wiring harness should not occur under normal operating conditions. The affected components are part of the suspension system, which directly impacts vehicle handling and safety. Due to the failure, the suspension system may not function properly, potentially affecting ride height, stability, and overall control of the vehicle. This raises safety concerns, especially at highway speeds or during emergency maneuvers. There was no prior warning of water intrusion or external damage that would reasonably explain this level of corrosion. This appears to be a premature failure of a critical electrical component. Acura has only offered minimal goodwill assistance, leaving the majority of this extremely costly repair as the responsibility of the owner. I am concerned that this may be a broader issue affecting other vehicles and that it could pose a safety risk if not addressed. I am requesting that this issue be investigated. Thank you.

See all problems of the 2022 Acura MDX 🔎.

There are times when my car comes to a stop shuts off ( auto off) then will not turn back on. This has happened numerous times. The dealers states that this a battery problem.

The rear passenger door actuators have both failed. The rear hatch will not unlock using the touch button. We just received notice that our transmission/transfer case needs replacing. $13k for this.

The electric parking brake system continuously fails (every 3-4 months).

See all problems of the 2018 Acura MDX 🔎.

During the summer of 2025, the auto idle engine railed to restart while at a stop light. We had to shut off and restart the car. We took it to the car dealer and they did some sort of software update. It happened again in January 2026 while at a stop light off a highway exit ramp. We took it to a different dealer because we were living in a different city at the time. In their computer system, they could see the repair that had been done. They did some sort of other update and submitted it as a warranty repair for Acura (which the other dealer had not done). They noted there was one other repair that could be done, but Acura would not allow them to do both at once and this update usually fixed it. However, it happened again in February 2026. The engine did not restart from auto idle, this time at a stop light toward the beginning of an eight hour road trip back home. Fortunately, turning off the engine and starting it back up worked. We took it back to the second dealer and they did the additional repair authorized by Acura and submitted as a warranty repair. Three incidents of the auto-idle not restarting the engine in less than a year is not acceptable. The car is unrealiable.

See all problems of the 2020 Acura MDX 🔎.

On several occasions, when the vehicle has been driving and comes to a stop in traffic. The auto start stop kills the engine when the brake is fully depressed. When we take our foot off the brake the engine will not start and a notification is shown on the dash. To start the engine push brake and ignition button. When we follow those directions the it does not start the engine. It usually requires us to release brake several times and continue to push start button. This issue has almost caused two accidents because we are stuck and the traffic behind does not see brake lights, because we have to release the brake. This occurred on the interstate in heavy traffic, and was almost struck from behind by a vehicle traveling at interstate speed, because all vehicles went around us and the upcoming vehicle did to see brake lights.

1) I was struck by a vehicle that ran the stop sign at 50mph. After the impact my vehicle continued rolling forward and wouldn’t stop. I ended up a block away from the accident and my emergency brake, brake pedal and center console brake would not engage. My vehicle was stopped after a car pulled up infront of me for me to rear end it to stop. Vehicle is a total loss and sitting in a tow yard. 2) I was in the vehicle with my 3 children under 7 years of age. Our safety was put at risk because if the accident would’ve happened on a main street I could’ve rolled into on coming traffic. 3) not yet, they have declared the car a total loss and have no interest in inspecting for damage repair. 4) no 5) no failures were detected nor happening prior to accident.

See all problems of the 2023 Acura MDX 🔎.

Auto idle stop/auto start-stop issue- on multiple occasions, occurring randomly, the vehicle will not start at stoplights after auto-idle stop is engaged. Sometimes this happens after the vehicle has been running for over an hour. Currently, the vehicle must be completely powered down and then restarted to revive engine.

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!.

The battery drains quickly. Have replaced the battery twice since 2022. Something in the car is draining the battery and making it fail. Infotainment screen sometimes stays grey and doesn't go black when car is off. Many 2022 Mdx owners are having similar battery drain issues requiring frequent battery replacements. Please push Acura for a recall and fix.

I was driving in the far right lane on the van wyck expressway when suddenly my steering wheel locked up on me along with the following error messages displayed on the odometer: 1. Collision mitigation braking system problem. See your dealer 2. Road departure mitigation problem. See your dealer 3. Low speed braking control problem. See your dealer. 4. Electric power steering problem. Steering assist not available. Do not drive. 5. All wheel drive system problem. Only front wheels may be powered. See your dealer. 6. Brake system problem. Brake performance may be reduced. See your dealer. 7. Brake hold problem. Apply brake when stopped. See your dealer. 8. Vehicle stability assist system problem. Reduced traction and handling. See your dealer. 9. Hill start assist problem. Vehicle may roll upon brake release. See your dealer. Thankfully I was approaching an exit ramp and I was able to steer my Mdx safely off the expressway. I parked my car on the service road, turned my hazards on and then turned the car off. When I restarted the car the error messages were gone and power steering worked as if nothing happened. Acura will be hearing from me I could’ve been in a serious accident.

See all problems of the 2024 Acura MDX 🔎.

Hello… this has happened at least four times. . The car goes to stand by/idle mode when the auto shut off is engaged. I was at a light and car went to idle and when it goes to green. Car just goes to idle mode. I had to put hazards on and restart car. People honking while I’m trying to restart car from this state. It’s like the car does not return on after the gas is engaged.

Intermitted flashing dash lights, headlights, and car alarms. Steering wheel moving up and down. Looks like the same issue as service bulleting 21-055.

I was at a red light. My auto idle kicked in. I went to turn it off and either simultaneously or right before I hit the idle off button my car stalled. It took several attempts to turn back on and a bunch of codes threw. I almost got rear ended. This is a known problem. Ive contacted Acura / Honda via email as well.

This has happend twice in the past 2 months, I came to a red light and the auto stop/start engaged automatically. When the light turned green and the vehicle was supposed to engage it turned off completely, all lights on the dash came on and it and wouldn't restart. Had to open the drivers side door and try to restart the vehicle, it restarted after a few tries. Very dangerous intersection I was stuck in. I have informed Acura of both occasions, they tested the battery cells and confirmed the battery was okay, was told this is a "known" issue with no resolve.

Since the purchase of my Acura Mdx 2019, the following problems have been reported to the dealership and to Honda manufacturing inc. Without any resolution. The dealer shop has replaced recall parts, but the problems persist and have not gone away. The vehicle stalls and stops working while driving. The engine makes knocking/rattling noises upon becoming disabled while driving. The engine would randomly not start when turning it on. When car becomes disabled the dashboard lights up warning lights displaying messages intermittently of the following problems: anti-lock brake system problem (abs), vehicle stability assist (vsa), hill start assist, trailer stability assist, collision mitigation system, road departure mitigation system, adaptive cruise control, lane keeping assist, brake system, brake hold system, electric parking brake, sh-awd, keyless start system and power steering system (eps) problems, while displaying acc and lwks codes. Additionally, the vehicle runs improperly and shuts down completely making the window, doors, etc, inoperable while passengers are inside locking me in and my entire family for long periods of time. A few times has left me either myself or with my children and dog inside. The only place where I take my car for services is where I purchased it (chevy chase Acura). The issues noted are the same reported by the recalls I have received, and I have not taken it somewhere else because of that reason. Nobody can fix them as the problems are manufacturing issues that even Acura/Honda cannot repair. This safety defect can kill or seriously injure me, my passengers, and other drivers on the road. As noted in one of the many recalls the fuel pump defect can cause the vehicle to stop in the highway and could prevent an engine from starting or cause a vehicle to stall while being driven, it potentially increases the risk of a fire, crash, or injury. My car continues to have these issues and nobody is helping me. Please help!.

See all problems of the 2019 Acura MDX 🔎.

As I was turning right (slowly accelerating from a complete stop) into a shopping center parking lot, I was entering into the lane behind a vehicle that had just passed in front of me (and was headed in the same direction I was going to turn). My 2022 Acura Mdx low speed braking control system engaged for no reason. The breaks slammed hard bringing the car to a hard, sudden stop, and I thought I had been rear-ended by the car behind me. I pressed the gas slowly again and was able to pull into a parking spot and checked my back bumper…perfectly fine! I googled the issues I experienced and found this is a common problem! this is a dangerous problem! please hold Acura accountable to fix this issue! for now, I have to remember to turn this low speed braking control system off every time I power on my Mdx! I am now scared to drive my car!.

On 11. 25. 25, my Mdx was involved in a multi-car hit and run on highway 101 sb at the laurel drive off ramp. The vehicle sustained two points of impact: (1) substantial front/driver side impact (2) rear-passenger side impact. Despite the severity, location of impact and speed of travel at the time of the collision, all airbags deployed except for the driver side curtain airbag. Importantly, at the time of the crash, the lane keeping assist system (lkas) and associated Acurawatch driver assist systems were activated. The vehicle’s safety assistance technology was engaged and functioning immediately prior to impact. Considering the above mentioned facts, driver side airbag failing to deploy, raises serious concerns regarding possible software or signal-processing malfunction or electronic communication between radar/camera systems and the srs module. The nature and severity of the impact clearly met deployment criteria for the driver side airbag. This failure raises concern that there may be a defect in the srs system, including but not limited airbag inflator component or propellant issue. Supplemental restraint system (srs) crash sensor calibration. Srs control module deployment logic. Crash signal sensors. Event-trigger logic or interconnnect failure. Wiring harness or inflator defect. Whether the system registered steering correction or impact prediction, the failure to deploy increased my risk and resulting injury, as well as compromised the fundamental safety system designed to protect drivers in front-impact crashes.

See all problems of the 2017 Acura MDX 🔎.

Turned on my car last night and many lights appeared including emissions system problem, electronic brake problem and sh-awd malfunctioning. All the lights came on at once. According to forums, this is happening with many Acura rdx, Mdx models and manufacturer does not have a clear way to repair or resolve the issue. My car has had all the routine maintenance and is scheduled for the 2 recalls to be repaired next week.

Google on-board gives a persistent error that the mmi and car driving technology firmware cannot be completed. Service center says it’s known and they can’t do anything. The car is supposed to have voice control over vehicle temperature and functionality — it does not. It frequently will not automatically connect to a wireless apple car play or google auto connection. Firmware is also supposed to communicate w car speed, etc. To make Acura assist driving more safe.

The start/stop switch stalls the vehicle and will not restart after several tries for up to 5 minutes. We get a message during this time to "continue to drive, depress brake pedal and push switch" and even after then it still will not start for several tries. This has happened several times. One time my wife was on a heavily traveled two lane farm road at a four-way stop and it did it and was almost hit by 18 wheelers trying to navigate around her. This was not only a safety issue for her but also those trying to get around her with all the traffic coming in all direction. Took back to the dealer but it did not do it while they tried to recreate the issue. No warnings prior to the issue of dying and not re-starting. This was the latest occurrence, it had happened a couple of times before.

Electric parking break and emissions light keep popping up. They says it’s the catalytic converter many people having the same issue.

The roof sunshade motor has failed. It is a known issue with TSB 23-013.

The power and motor on the moonroof and sunshade has failed multiple times in the first year of owning the car.

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. Had to fully turn off vehicle and back on to get it to start 3) 10/30/2025 after parking for shopping, upon returning to the vehicle it failed to start from off. Any subsequent repress of the start button would make a click and starter failed to engage. After turning off vehicle and back on it started vehicle was taken to dealership and notified of issues - they checked the battery and it was fine, no trouble found.

When the auto idle stop system is enabled my Acura will shut down completely when the vehicle comes to a complete stop and the idle stop system will not reengage as it should when your foot comes off the brake and the car shuts completely off and goes into park. This has happened 3 times, the last one occurring on a very busy highway, and I'm thankful I wasn't rear ended by the car behind me. Traffic had to go around me which caused quite a hazard pulling out into a fast moving lane. It finally responded, restarted and I was able to move forward. It was taken into the dealership and they weren't able to recreate the occurrence for the short time that they had it (one week). There was no warning prior to failure. I have called Acura client relations and they turned it over to their management team, gave me a case number and I haven't heard from them as of this complaint. Reading your website I see many others having and reporting this same dangerous experience with their 2025 Acura Mdx.

There was an active recall on this car from Acura for the auto start system malfunctioning. When the car auto stops at a signal or stop sign it does not turn back on sometimes. We took the car to Acura 3 times for the same issue and they keep saying that it is fixed but the recall was never fixed. This is highly dangerous in traffic situations when the car does not turn back on when you take your foot off the brake.

The front camera failure. Needs replacement. Camera apparently is used for the acc , lane departure assistance.

Autostart (stop/start) stopped engine but failed to restart car. Had to shut down computer and restart computer and then car started. Cars were coming around blind corner serving to avoid us. Has since happened multiple times just starting up vehicle (not involving autostart). Taken to Acura dealership 3 times to fix, but they have been unable to resolve issue.

When driving and the stopping the auto start/stop feature does not rengage and the car places itself in park and becomes disabled and difficult to restart. When driving on a major highway when I was in traffic the car shut down, put itself into park and would not restart upon removing my foot from the brake. It then gave numerous error messages and would not respond to any commands. Traffic started moving and cars were then needing to go around my disabled vehicle. It finally responded to me trying to restart it. We had the car checked the week before it happened due to it being slow to re-engage when the auto start stop would be used. The dealership reported that there was nothing wrong. Brought it back after is was disabled on the highway for 5 minutes and they are still saying there is nothing wrong if they do not see it happen themselves. It is a danger to drive.

On 9/12/2025 driving on the highway in stop and go traffic, the idle stop feature engaged, but the engine would not restart upon taking foot off break. Put vehicle into park and held start/stop button for couple seconds to turn off, then was able to restart vehicle by pushing start button. Couple days later went to start vehicle while parked and accessories came on, but engine wouldn’t start. After a few attempts, got vehicle to start.

See all problems of the 2016 Acura MDX 🔎.

Loss of power steering and braking assist reduced. My spouse was driving our 2023 Mdx approximately 45mph when she ran over a recessed manhole cover which created a bump. The Mdx lossed power steering and brake performance reduced. The vehicle was very difficult to turn at that point. The car began to cycle through errors that would not clear until the car's engine could be stopped and restarted: hill start assist problem, trailer stability assist problem, adaptive cruise control problem, lane keeping assist problem, collision mitigation braking system problem, road departure mitigation system problem, low speed braking system problem, electrical power steering system problem steering assist is not available do not drive, awd system problem front wheels may only be powered, brake system problem brake performance may be reduced. All these errors said see your dealer. We took the vehicle in to our local Acura dealer's service department 2 times over the course of 3 days. Both times diagnostics were ran and the car was deemed without problem. The Mdx's alignment was ok as well, so the impact of the road hazard was not severe.

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 also noticed the water inside the inner tail light but quoted about $750 for the repair. Although my VIN does not show this recall, my vehicle is experiencing the same problem described. Could you please review and advise if this may qualify for recall coverage or goodwill assistance? thank you. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).