2024 Acura MDX
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
Have the VIN?
These records cover every 2024 Acura MDX. To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
2 recalls name the 2024 Acura MDX. Newest first.
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…
Risk and remedy
Risk
Air bags that deploy unintentionally during a crash increase the risk of injury.
Remedy
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.
Honda (American Honda Motor Co.) is recalling certain 2021-2025 Acura TLX, 2023-2025 Acura MDX, and 2023-2025 Honda Pilot vehicles. The brake pedal pivot pin was not secured properly, which can cause the pedal to shift out of position. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard numbers 108, "Lamps, Reflective Devices…
Risk and remedy
Risk
A brake pedal that shifts out of position can prevent the driver from applying the brakes as intended, increasing the risk of a crash or injury.
Remedy
Dealers will inspect and replace the brake pedal assembly as necessary, free of charge. Owner notification letters were mailed July 29, 2025. Owners may contact Honda's customer service at 1-888-234-2138. Honda's numbers for this recall are FLX and XLY.
Owner complaints
41 complaints1 involved a crash4 injuries
What owners report most
Latest complaints
- Back over prevention › Warnings · Forward collision avoidance › Warnings · Service brakes
The vehicle is showing LOW SPEED BRAKING CONTROL and BRAKE SYSTEM PROBLEMS, it is also throwing DTC Codes B2600-97; B2627-96; B2630-96; B2637-11; P2583-76 and P2583-97, as I consider the vehicle unsafe to drive or operate and it is a leased vehicle I took it to the same Acura dealer I leased the…
The vehicle is showing LOW SPEED BRAKING CONTROL and BRAKE SYSTEM PROBLEMS, it is also throwing DTC Codes B2600-97; B2627-96; B2630-96; B2637-11; P2583-76 and P2583-97, as I consider the vehicle unsafe to drive or operate and it is a leased vehicle I took it to the same Acura dealer I leased the vehicle from, in order to have it repaired and put back to a normal operating status and make it safe to drive and operate. I took it to the dealer, advantage Acura of Naperville, on Friday October 9, 2026. The dealer is refusing to repair the braking failure under the manufactures warranty, as the vehicle only has 31thousand miles on it, and it still is within the manufactures warranty period.
- Electrical system · Engine
VIN: [XXX]: 2024 Acura MDXComponents: Engine, Electrical System, Powertrain (Auto Idle-Stop)Ref Investigation: NHTSA EA25-004 (Upgraded from PE22-005) Dealer: Acura Carland ([XXX])SAFETY DEFECT SUMMARY:Severe safety hazard involving the Auto Idle-Stop system. The vehicle repeatedly shuts off at…
VIN: [XXX]: 2024 Acura MDXComponents: Engine, Electrical System, Powertrain (Auto Idle-Stop)Ref Investigation: NHTSA EA25-004 (Upgraded from PE22-005) Dealer: Acura Carland ([XXX])SAFETY DEFECT SUMMARY:Severe safety hazard involving the Auto Idle-Stop system. The vehicle repeatedly shuts off at stops (intersections, traffic lights) and fails or struggles to restart, leaving it stranded with zero motive power in active traffic and creating immediate collision risk. DEALER FAILURE & PROTOCOL DEVIATION:Under warranty, Acura Carland diagnosed excessive starter electrical draw and replaced the starter motor. This was a superficial fix. Per Honda/Acura technical directives (e.g., TSB 23-009 / NHTSA [XXX] and [XXX]), high starter current draw during idle-stop restart stems from root mechanical drag (valve clearances) and faulty relays. Replacing only the starter ignored the root cause, leading directly to repeat failure.The identical failure recurred. Upon returning to Acura Carland, dealership personnel dismissed my concerns, disregarded published technical notices and federal investigation references, and refused to escalate to Honda Technical Information & Support (TIS) or a Field Technical Specialist.NHTSA EA25-004 NEXUS:Directly matches active investigation EA25-004 (2.2M Honda/Acura 3.5L vehicles). ODI specifically noted restart failures persist even after software updates and starter motor replacements. My vehicle demonstrates that 2024 MDX models suffer the identical vulnerability and dealers are performing inadequate component swaps. RELIEF REQUESTED:Incorporate VIN [XXX] into EA25-004.Mandate American Honda enforce root-cause dealer repair protocols (valve adjustments, starter relays).Compel a safety recall and full warranty extension covering all Auto Idle-Stop, ignition, valve train, and starter components. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Electrical system · Forward collision avoidance › Automatic emergency braking
The contact owns a 2024 Acura MDX. The contact stated that while driving approximately 20 MPH and driving over construction steel plates on the roadway, the brakes independently engaged while the accelerator pedal was depressed. The contact stated that the failure could have caused a rear-end crash…
The contact owns a 2024 Acura MDX. The contact stated that while driving approximately 20 MPH and driving over construction steel plates on the roadway, the brakes independently engaged while the accelerator pedal was depressed. The contact stated that the failure could have caused a rear-end crash while driving at faster speeds with other vehicles nearby and posed a risk to her 1-year-old child seated the car seat in the second-row rear seats. The BRAKE warning light was illuminated. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 21,642.
- Visibility/wiper
The windshield on this 2024 MDX must be replaced because of the rear view mirror coming loose from the windshield. Acura is dragging their feet on correcting this dangerous situation of preventing the ability to see or use the rear view mirror.
- Structure › Body · Unknown or other · Visibility/wiper
I am reporting a potential safety defect involving the rear windshield glass on my Acura MDX. The rear windshield unexpectedly shattered while the vehicle was stationary, with no known impact or contact with an outside object. I was present when the glass shattered and immediately took multiple…
I am reporting a potential safety defect involving the rear windshield glass on my Acura MDX. The rear windshield unexpectedly shattered while the vehicle was stationary, with no known impact or contact with an outside object. I was present when the glass shattered and immediately took multiple photographs and videos before the vehicle was moved. Based on what I observed, the glass appeared to break outward rather than from an outside object striking the vehicle. I later drove the vehicle from my home to the Acura dealership after being advised to do so. By the time the vehicle was inspected, portions of the shattered glass were understandably missing. The dealership later identified an area of missing glass as a possible “point of impact,” although I witnessed the event and there was no impact. I am submitting this complaint because I am concerned that the rear glass may have failed spontaneously and could represent a safety issue. Unexpected glass shattering could potentially occur while a vehicle is being driven and could startle a driver, expose occupants to broken glass, or impair visibility. I am also aware that Acura has previously issued technical service information regarding rear windshield glass on certain RDX vehicles shattering without external impact. I understand that my vehicle is an MDX and may not be covered by the same issue, but I believe the circumstances warrant documentation and review for a possible pattern.
- Visibility/wiper
Went to get into my 2024 Acura MDX parked car this morning temperature around 68 degrees and noticed the back window of my 2024 MDX had shattered out. There was a large section of glass missing and the glass looks as if it was pushed from the inside out. The vehicle had not been driven or started…
Went to get into my 2024 Acura MDX parked car this morning temperature around 68 degrees and noticed the back window of my 2024 MDX had shattered out. There was a large section of glass missing and the glass looks as if it was pushed from the inside out. The vehicle had not been driven or started since the last evening. It seems as though this was a problem with prior Acura models in previous years. Went to the dealer and talked to the technician who said it is not covered under Acura warranty. This is definitely a safety issue as I could have been driving down the interstate when this happened putting my life and others in danger. I can only assume this is an issue Acura is aware of with the class action lawsuit that had been filed.
- Air bags › Srs malfunction warning lamp/light · Visibility › Sun/moon roof assembly
The contact owns a 2024 Acura MDX. The contact stated that while driving at an undisclosed speed, a loud banging sound was heard coming from the vehicle. The contact discovered that the sunroof had unexpectedly shattered. Additionally, while driving at an undisclosed speed, a supplemental restraint…
The contact owns a 2024 Acura MDX. The contact stated that while driving at an undisclosed speed, a loud banging sound was heard coming from the vehicle. The contact discovered that the sunroof had unexpectedly shattered. Additionally, while driving at an undisclosed speed, a supplemental restraint system warning message intermittently displayed, advising the contact to contact the dealer. The vehicle was taken to the dealer; however, the failures could not be duplicated. The vehicle was not diagnosed or repaired. The dealer was also contacted regarding the shattered sunroof; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 29,112.
- Electrical system · Unknown or other
Our infotainment system stopped working and when we took it one of Acura’s authorized dealers they told us that back half of the car is flooded and that has shot down all the electronics including the infotainment system. They also gave me a bill of $10K USD to fix the leak and replaced damaged…
Our infotainment system stopped working and when we took it one of Acura’s authorized dealers they told us that back half of the car is flooded and that has shot down all the electronics including the infotainment system. They also gave me a bill of $10K USD to fix the leak and replaced damaged electronics. Their argument is that the car was parked outside and that caused this issue. This has never come up in any of our previous maintenance visits where Acura certified dealerships always check our car and tell us that everything is okay.
- Forward collision avoidance › Adaptive cruise control · Service brakes · Suspension
Air suspension/vehicle height Brake systems were taken away (adaptive cruise, anti collision and lane mitigation) Yes confirmed by dealer Yes Yes warning lights
- Engine
2004 MDX had digital screen problems where the screen remained black upon starting, which was hazardous as I couldn’t tell how fast I was going. After 3 visits to the dealership they identified the problem and fixed it Also, in a separate instance, car stalled after trying to start up after stop…
2004 MDX had digital screen problems where the screen remained black upon starting, which was hazardous as I couldn’t tell how fast I was going. After 3 visits to the dealership they identified the problem and fixed it Also, in a separate instance, car stalled after trying to start up after stop signs or while waiting in traffic several times. Could have been rear ended or worse. Dealer replaced the starter at 30k miles. Still had the same issue after this and they say the car is fine.
- Visibility
The contact owns a 2024 Acura MDX. The contact stated that while the vehicle was parked, the sunroof glass shattered. No warning lights were illuminated. The vehicle remained at the residence. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 42,000.
- Electrical system · Service brakes · Steering
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.…
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.
- Unknown or other
AC / DEFROSTER / HVAC I am reporting a potential safety and health defect involving the HVAC system in my 2024 Acura MDX. When operating the air conditioning or the front windshield defroster, a strong musty odor enters the cabin. The dealer informed me that resolving the odor requires an EVAP core…
AC / DEFROSTER / HVAC I am reporting a potential safety and health defect involving the HVAC system in my 2024 Acura MDX. When operating the air conditioning or the front windshield defroster, a strong musty odor enters the cabin. The dealer informed me that resolving the odor requires an EVAP core cleaning, replacement of the cabin filter, and the use of a disinfectant that will be circulated throughout the ventilation system to kill mold, mildew, and other contaminants. I was told this is the “first step” in addressing the issue and that the estimated cost is $440 out of pocket. This is extremely concerning because the presence of mold or bacterial contamination inside the HVAC evaporator and ventilation system affects the air my children and I breathe inside the vehicle. Mold exposure can cause respiratory irritation, allergic reactions, headaches, and other symptoms, especially in enclosed spaces. The HVAC system in this vehicle is a sealed, manufacturer-controlled system which the owner cannot access or service, so this type of contamination should not be considered routine maintenance. I have researched this issue and found that Honda/Acura vehicles have a documented history of HVAC mold and mildew odors, and Honda has previously issued internal investigative bulletins requesting dealers to collect parts from vehicles with musty HVAC smells. There are also mold-related complaints already filed with NHTSA for the 2024 MDX model year. This suggests the possibility of a broader engineering or design issue. I need this issue addressed immediately for health reasons, and I may have to initially pay out of pocket to ensure my family’s safety. However, I believe this is a safety-related defect that Acura should be responsible for correcting, not the customer, especially on a relatively new vehicle still under warranty. I am requesting that NHTSA document this case and consider evaluating whether a pattern of HVAC mold contamination exists in newer Acura vehicles.
- Electrical system · Lane departure › Blind spot detection · Service brakes
Electrical, brake and car acceleration problems.
- Electrical system · Engine
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…
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.
- Service brakes
To: Consumer Financial Protection Bureau (CFPB) Subject: Urgent Complaint – Illegal Repossession, Lemon Law Obstruction, and Compensation Claim Against Honda Financial Services Dear Sir or Madam, I am filing a formal complaint regarding the illegal repossession of my leased 2024 Acura MDX, VIN…
To: Consumer Financial Protection Bureau (CFPB) Subject: Urgent Complaint – Illegal Repossession, Lemon Law Obstruction, and Compensation Claim Against Honda Financial Services Dear Sir or Madam, I am filing a formal complaint regarding the illegal repossession of my leased 2024 Acura MDX, VIN [XXX] , account number [INSERT ACCOUNT NUMBER], by Honda Financial Services. This repossession was conducted without any prior notice, without communication of the date, time, or location, and without any legal authorization or court order. 1. No opportunity to respond or act • I was outside the country at the time of repossession and had no chance to respond or protect my rights. • The vehicle was removed one day before my arrival, despite my sister attempting to coordinate that the vehicle be held because my mother is seriously ill and could not make payments. • The vehicle had been immobilized for 4 months due to brake and acceleration defects, which were part of a manufacturer recall affecting all MDX vehicles. 2. Illegal and premeditated removal • My vehicle was removed from a private garage using a towing company, without a court order, without my consent, and without legal authorization. • Video evidence clearly shows the doors were closed; the individual opened them himself, deliberately removed the license plates, and covered his face to avoid surveillance cameras. • These actions constitute intentional concealment, unlawful seizure, and theft, not a lawful repossession. 3. Obstruction of Lemon Law claim • Honda Financial never took the vehicle for inspection or repairs, deliberately preventing evidence of factory defects that rendered the vehicle unusable for over a year. • After multiple attempts to resolve the issue, Honda Financial claimed they have no record, effectively denying rightful compensation and acting in bad faith to sabotage my Lemon Law claim. 4. Violation of federal and state laws • Uniform Commercial Code (UCC) § 9-609: Prohibits reposses INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO
- Unknown or other
Front sunroof panel spontaneously exploded while driving on the interstate highway. No impacts or other things touched the sunroof. Vehicles behind had to avoid large portions of the sunroof panel. Flying glass made it dangerous to quickly leave the highway. This is a 2024 mdx with less than 30,000 miles. Never been in an accident before.
- Unknown or other
Heard a loud “pop” while sitting in parked car. Radio volume spiked up and the passenger side of windshield was shattered. Clear defect in installation.
- Engine · Power train · Vehicle speed control
When cruising or coming off a stop, my car is incapable of accelerating promptly if I am trying to get out of the way or even merge into oncoming traffic on a highway. There is a severe acceleration delay perhaps with the throttle body. I have seen online complaints but the dealership said there…
When cruising or coming off a stop, my car is incapable of accelerating promptly if I am trying to get out of the way or even merge into oncoming traffic on a highway. There is a severe acceleration delay perhaps with the throttle body. I have seen online complaints but the dealership said there has to be an actual recall number to correct this. My car has been in several times to fix this. A computer reset did not work. My car is one year old.
- Service brakes
on [XXX], I was trying to park under the shade of a tree when the vehicle suddenly surged forward, ran through the back of a big concrete dumpster retaining wall, pushed the dumpster at least 3 to 4 feet forward. It all happened so fast, I was left puzzled about why the brake failed and caused the…
on [XXX], I was trying to park under the shade of a tree when the vehicle suddenly surged forward, ran through the back of a big concrete dumpster retaining wall, pushed the dumpster at least 3 to 4 feet forward. It all happened so fast, I was left puzzled about why the brake failed and caused the accident and property damage. Luckily there was no personal injury to me nor anyone else, my car video showed that I narrowly missed 2 Hispanic young men standing near the dumpster ! Since the car is still under warranty, my plan was to get the car checked out by the dealership mechanic after the body shop finished with the $18,000 repair job. Then on 7/31/2025 I received a recall notice from Honda about BRAKE PEDAL PIVOT PIN may not have been staked during production. I immediately contacted State Farm and Honda. On 8/6/2025 A Honda representative, Mr. Noah, called and advised to have the car inspected by dealer for recall issue. I did not agree to it due to what I believed to be a conflict of interest : since the dealer is part of the same network with Honda ! Noah then suggested to get State Farm to request an EDR download of specific data providing insights into what happened before , during and after a collision. or I can order one myself. In accident cases involving vehicle recall, the manufacturer is considered a key party when it comes to investigation, why we consumer need to foot the bill knowing that ordering EDR is not assigned to a single party! It has been more than 3 months now since the accident, and my car is still sitting at the auto shop waiting for an EDR its data might have already been overwritten !! I have never heard from Honda again after 8/6/2025 !! They just ignored my phone calls, emails, accident video and photos totally. There were no warning lamps, message or other symptoms of the problem prior to the failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
- Electrical system · Engine · Fuel/propulsion system
Vehicle will suddenly shut the engine off and shift into park, even when the auto engine shut off is not active. Typically happens when stopped at a stop light. You will feel the engine shut off, and the car shift into park. It is very scary and unsafe. It has also caused the vehicle to shut…
Vehicle will suddenly shut the engine off and shift into park, even when the auto engine shut off is not active. Typically happens when stopped at a stop light. You will feel the engine shut off, and the car shift into park. It is very scary and unsafe. It has also caused the vehicle to shut off and shift into neutral while it was moving, and the vehicle gave a transmission warning. It sounds very similar to NHTSA Recall 25v-031, however, my vehicle was not included in the recall as it is not a Type S. I took it to the dealership and they said that Acura has opened an investigation due to the number of complaints, but there is no solution yet. I have not other option but to dry the vehicle, but I am worried that it is unsafe and not good for the vehicle to keep stalling the way it is.
- Electrical system · Forward collision avoidance · Power train
The contact owns a 2024 Acura MDX. The contact stated the messages "Parking Sensor Failure - See Dealer", "Brake Performance Failure" and "Brakes May Be Reduced - See Dealer" were displayed. Additionally, the Forward Collision Avoidance sensor would alert the contact of a potential collision…
The contact owns a 2024 Acura MDX. The contact stated the messages "Parking Sensor Failure - See Dealer", "Brake Performance Failure" and "Brakes May Be Reduced - See Dealer" were displayed. Additionally, the Forward Collision Avoidance sensor would alert the contact of a potential collision erroneously. The vehicle was taken to the dealer, where the computer systems were reset, and the front bumper sensor was replaced. The contact stated that after the repair, the auto brake hold feature failed to engage upon coming to a stop and releasing the brake pedal, causing the vehicle to roll. The vehicle was taken to a second dealer, Kearny Mesa Acura (5202 Kearny Mesa Rd, San Diego, CA 92111); to be diagnosed, but the cause of the failure could not be determined. The contact also noticed that the wheels were out of alignment. Additionally, the contact stated while driving at various speeds, the vehicle surged forward and felt like the transmission had shifted from 1st to 3rd gear instantly, and the failure recurred while decelerating to come to a stop. The contact stated while driving approximately 5 MPH in a parking lot, the vehicle suddenly felt like the transmission was in 3rd gear. The contact immediately depressed the brake pedal and stopped the vehicle. The vehicle was taken to a third dealer, Acura of Escondido (1502 Auto Park Way N, Escondido, CA 92029) to be diagnosed, but the cause of the failure could not be determined. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failures and a case was filed. The failure mileage was approximately 9,747.
- Suspension · Unknown or other · Wheels
Unknown. Constant creaking and rubbing sound when turning wheel and tires. Acura refuses to look into it more. Not a normal sound for a car less than two years old. Continues to happen everyday since two eeeks after I bought car. Have taken it to Acura multiple times for weeks at a time
- Unknown or other
Acura MDX Sunroof Explosion striking my wife face and glass going into my kids 5 and 3 car seats. The dealer nor American Honda are not taking accountability for it.
- Service brakes
1. Brake Pedal Sinking to Floor While Stopped - While stopped at a traffic light or in stop-and-go traffic, the brake pedal intermittently sinks all the way to the floor despite steady pressure being applied. This issue occurs sporadically, making it difficult for the dealership to consistently…
1. Brake Pedal Sinking to Floor While Stopped - While stopped at a traffic light or in stop-and-go traffic, the brake pedal intermittently sinks all the way to the floor despite steady pressure being applied. This issue occurs sporadically, making it difficult for the dealership to consistently replicate during service visits, but it has happened multiple times. Critically, once the pedal sinks, it does not return to its normal position on its own. I am forced to manually pull it back using my foot, which is both dangerous and unacceptable in a modern vehicle. This creates a serious safety hazard and raises concerns about potential failure of the braking system. 2. Delayed Brake Engagement - The brake pedal consistently travels halfway before the braking system engages and slows the vehicle. On all three occasions, I was told the problem could not be replicated. Despite their findings, the issue persists and poses a serious safety concern, especially in real-world driving conditions. This concern is even more urgent because I regularly transport my family, including my two toddlers aged [XXX] and [XXX] , and I need to be able to rely on the braking system to keep them safe. I have reached out to Acura on numerous occasions to report this issue, but so far, my concerns have not been taken seriously. I have not received any meaningful support or escalation despite clearly communicating the severity of the problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Defect investigations
NHTSA’s Office of Defects Investigation opened these reviews into vehicles including this one.
- No Restart After Auto Start/Stop Engages
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop…
On June 3, 2022, the Office of Defects Investigation (ODI) opened Preliminary Evaluation PE22005 after the agency received VOQs and several field reports concerning the Auto Idle Stop (AIS) feature on 2016-2019MY Honda Pilot vehicles. The complaints allege that the engine fails to restart on its own from a complete stop at a traffic light or road intersection with the AIS function engaged. The subject vehicles are equipped with a 3.5L engine with a 9-speed automatic transmission. On January 6, 2023, Honda released service bulletins 23-008 and 23-009. These service bulletins address the failure to restart issue in the 2016-2019MY Honda Pilot vehicles, as well as the 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2019-2022 Honda Passport, and 2020-2023 Honda Ridgeline vehicles. The repair outlined in the service bulletins is a two-stage countermeasure to remedy the issue. The first stage is a Programmed Fuel Injection (“PGM-FI”) software update. The second stage is only deployed if the software update fails to remedy the issue. The second stage, depending on the model and model year, consists of replacement of the starter assembly, starter relays, and a valve adjustment. Additionally, Honda extended the warranty coverage to 10 years with unlimited mileage for vehicles requiring the second stage component replacement. ODI continues to receive complaints of the AIS failure to restart, with many complainants alleging the campaign countermeasures had been completed.NHTSA has reviewed Honda's Information Request Letter responses involving warranty claims, lawsuits, and consumer complaints in addition to ODI's own data. This Engineering Analysis is being opened to further consider the potential safety defect, including gathering additional data regarding Honda’s service campaign efficacy. ODI is additionally expanding the scope to encompass all vehicles addressed in Honda’s service bulletins 23-008 and 23-009 as well as newer model year vehicles, which are substantially similar to the vehicles covered by the service campaign. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11010557Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2023-2025 MDXs with a client complaint of the front wiper motors being inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to your attempting a repair of any kind.
- 11010128Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2023-2025 MDXs with a client complaint of the front wiper motors being inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to your attempting a repair of any kind.
- 11010125Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2025 MDXs with a client complaint of a high-pitched noise coming from the front HVAC system when on the high fan setting. The high-pitched noise can be described as a whine. To better understand the cause of this condition, AHM would like to collect certain parts from the vehicle prior to you attempting a repair of any kind.
- 11009196Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2023-2025 MDXs with a client complaint of the front wiper motors being inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to your attempting a repair of any kind.
- 11008048Owner Notification Letter - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system (MOST) bus network which can potentially affect the audio sound quality.
- 11008047Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2023-2025 MDXs with a client complaint of the front wiper motors being inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to your attempting a repair of any kind.
- 11006806Dealer Message - American Honda Motor Co., Inc. (AHM) is investigating certain 2023-2025 MDXs with a client complaint of the front wiper motors being inop. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to your attempting a repair of any kind.
- 11006535Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of the moonroof seal being visually deformed, torn or binding. This concern may cause water leaks or for the moonroof to not operate properly. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- 11005526Service Bulletin - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the media-oriented system transport (MOST) bus network which can potentially affect the audio sound quality.
- 11005522Service Bulletin - Drivers are experiencing screeching, squeaking, rubbing, or scraping from the rear wheel area due to rocks are getting caught between the rear brake disk and splash guard.
- 11005521Dealer Message - A coaxial cable terminal was not manufactured to proper specifications. An improperly manufactured terminal may lead to poor communication in the Media Oriented System Transport (MOST) bus network which can potentially affect the audio sound quality.
- 11005520Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of the moonroof seal being visually deformed, torn or binding. This concern may cause water leaks or for the moonroof to not operate properly. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- 11005192Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of the moonroof seal being visually deformed, torn or binding. This concern may cause water leaks or for the moonroof to not operate properly. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- 11004272Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
- 11004271Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of the moonroof seal being visually deformed, torn or binding. This concern may cause water leaks or for the moonroof to not operate properly. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- 11000722Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of the moonroof seal being visually deformed, torn or binding. This concern may cause water leaks or for the moonroof to not operate properly. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind.
- 11000718Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
- 11000283Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
- 11000147Service News - Due to On-Board Diagnostic (OBD) regulation change starting with 2019 vehicles, American Hondas Variable Valve Timing and Lift Electronic Control (VTEC) On-Board Diagnostic monitors are now included in the EGR/VVT OBD Monitor Readiness status group. Due to some customers driving patterns, they may not drive in the fashion needed to operate the VTEC (EGR/VVT) that only operates above 5,350 rpm to run the OBD monitoring. Therefore, the EGR/VVT OBD monitor group readiness status is not set to Complete when the customer presents their vehicle to a Smog Check station for inspection.
- 11000145Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
- 11000144Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of suspension noise coming from the front of the vehicle when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10253300Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind. (Click HERE for examples of the photos)
- 10252477Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of suspension noise coming from the front of the vehicle when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10252083Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind.
- 10251894Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of suspension noise coming from the front of the vehicle when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10251150Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs that have failed the battery test. To better understand the cause of this condition, AHM would like to collect specific parts and photos from the vehicle prior to your attempting a repair of any kind. (Click HERE for examples of the photos)
- 10248978Service Bulletin - The MIL comes on during vehicle operation due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).
- 10248683Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10247626Service Bulletin - Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441 (Evaporative Emission (EVAP) System Purge Flow Malfunction).
- 10246409Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10245280Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10245278Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of front damper noise while driving over bumps. To better understand the cause of this condition, AHM would like to collect parts from the vehicle prior to you attempting a repair of any kind.
- 10244666Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of front damper noise while driving over bumps. To better understand the cause of this condition, AHM would like to collect parts from the vehicle prior to you attempting a repair of any kind.
- 10244301Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10244254Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of front damper noise while driving over bumps. To better understand the cause of this condition, AHM would like to collect parts from the vehicle prior to you attempting a repair of any kind.
- 10244191Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10243732Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs with a client complaint of front damper noise while driving over bumps. To better understand the cause of this condition, AHM would like to collect parts from the vehicle prior to you attempting a repair of any kind.
- 10242865Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10242212Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2023-2024 MDXs with a client complaint of front suspension noise coming from the front when turning left and/or right. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
- 10241467Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2022-2024 MDXs & 2022-2023 RDXs with a client complaint of a visually defective run channel, wind noise, or window function issue that results in recommendation to replace the affected run channel. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind.
Every Acura MDX model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.