2022 Acura MDX Complaint Log

Emissions System Failure Warning Power Shifting / Power Shifting See Dealer All Wheel Drive (AWD) Power may be reduced - see dealer

On April 17 2026 while driving my 2022 Acura MDX at very low speed in a parking lot, the vehicle suddenly accelerated forward without warning and surged into bushes before I could stop it. I did not mistake the gas for the brake pedal. This felt like a sudden unintended acceleration event. I was preparing to park in a stall and the vehicle lunged forward unexpectedly. I applied the brake, but the braking did not immediately stop the forward surge. Earlier, I experienced another unusual event in which the vehicle abruptly auto-braked, jerked, and made a warning sound while I was slowing for a red light. I noticed the car felt as if it was surging a bit on residential streets and was about to mention it during the next service. This incident has caused me to lose confidence in the safety of the vehicle. I contacted Niello Acura who has been very cooperative. I was told the issue would need to be duplicated or that they could only inspect it if a code had been stored once the car is repaired. The car is currently being repaired with close to 7,000 in front end damage. I am reporting this because a sudden unintended acceleration presents a serious safety risk and could easily have caused a more severe crash or injury. I did research on this issue and have found various reports of unintended accelerations in the Acura MDX forums from various years but was unable to find any recalls or outcomes with these reports My concern is this will be dismissed as "operator error" or a phantom incident that cannot be reproduced.

I was at a stop light, when the lights turned green, I accelerated and heard a loud bang underneath the vehicle. The sound was so loud I thought I had been rear ended. I got out to inspect the vehicle and did not see any damages. I got back into the vehicle and put it in drive to get to the closed gas station. When I started driving, I heard clunking sounds underneath vehicle. I put on my hazards and drove slow. After about 50-100 ft the clunking sounds went away. No lights on the dash or anything. I then got vehicle towed to my father’s shop to inspect what was going or what happened due to not feeling safe driving. One of his employees looked up the cause of the noise and had found that the differential splines or transfer case would strip and cause a loud bang. Which happens on a lot of these acuras. He put vehicle on lift, and put it into drive. The front wheels would spin, but not the rear wheels. He said that indicates the transfer case is bad

RIGHT AND LEFT REAR STROKE SENSOR AND AFTER MARKET CONNECTOR WITH PIGTAILS FOUND CORROSION NEE REAR STROKE SENSOR CONNECTOR CAUSING DTC C1646-F0=== $872.13 right + $872.13 left They are using after market parts with this new Suspension system for Acuras MDX TYPE S. Any car wash or rain storm or snow storm this parts gets corrosion!

The AWD system failed and now its only FWD

Complete drivetrain failure while accelerating from a complete stop in the middle of a busy intersection. No warning lights or hazard messages were activated before or after the failure. The car made a massive clunking/banging sound and continued to clunk on acceleration. The car had to be towed to the dealership. My children were in the car with me, and we had just driven on the highway for 45 minutes before this failure. Luckily, my husband was behind me, and I activated hazards until I could pull over safely. It was jerking and clunking so badly that I was barely able to steer. It was terrifying since my two young children were in the car, and they were both screaming from the noise. I believe I would have been rear-ended if my husband had not been behind me due to the sudden jerk from the failure, as I was the first car in the left turn lane. This is not the first issue I have had with the transfer case in this vehicle. The affected transfer case and drive train were replaced only 7 months prior due to a faulty transfer case and a severe clunking sound. This vehicle has had repeated drivetrain failures without warning, resulting in loss of traction and control. The recent failure reflects a completely stripped spline connecting the transfer case and transmission. This will be the 4th transfer case this vehicle has had at only 64K miles. All recommended maintenance and care have been completed at the certified Acura dealership since the vehicle was purchased. Recently, the 60K services were completed just 3 months prior to the current failure. The vehicle is currently at the dealership for repairs under warranty, as it needs a new transmission and another transfer case. I have not yet received the documentation, as the car is not in my possession, but I will provide it once I receive it. See the attached documentation from the previous failure, dated 6/3/2025, to establish a pattern of catastrophic drivetrain failure.

Transfer case failure limiting all wheel drive system. Needs new transmission and transfer case at 83000 miles.

Vehicle has a service bulletin issued by NHTSA and Honda/Acura of North America refuses to acknowledge it or fix the problem. for 4 years. Service Bulletin 24-025

My vehicle stopped handling as it usually had and I at a significant decrease in traction and slid off the road and slammed into a road sign. No injuries but significant damage to the vehicle. It seemed as though the all-wheel drive was not working. No warning lamps and computer system indicated that all four wheels were getting power. Took it to dealer and they confirmed that the all-wheel drive system has failed. Splines in the transfer case stripped and transmission needs to be replaced

Please add me to the compliant pool. My transfer case/transmission went out - 2022, 80,000 miles. March 6, 2026 NHTSA CAMPAIGN NUMBER: DP26001 OPEN INVESTIGATION All wheel drive allegation NHTSA Action Number: DP26001 Components: POWER TRAIN Opened From: March 6, 2026 – Present Summary The Office of Defects Investigation (ODI) received a Petition dated January 9, 2026, requesting an investigation into the loss of the optional all-wheel drive capability in model year (MY) 2021-2023 Acura TLX and MY 2022-2023 Acura MDX vehicles. The Petition contends that the interfacing splines between the transmission and the rear wheel drive power take off unit are failing. Failure of these splines prevents the transfer of drive power to the rear axle, making the vehicle front wheel drive only. The Petition further alleges that this failure results in a reduction of vehicle directional control. The Petitioner cites 48 complaints received by ODI alleging the same failure. ODI will evaluate these complaints to determine if they are related to the failure cited in the Petition and will conduct a technical review under 49 CFR Part 552. This Defect Petition is being opened to evaluate whether to grant or deny the Petition. The Petition can be viewed at NHTSA.gov under NHTSA Number 11712885.

MDX Type S with 63k miles. After performing diagnostic check there were several fault codes related to the vehicle's suspension system. Upon inspection, they identified issues with the ride height (stroke) sensors and wiring. The right rear, left rear, and right front sensors are affected. The right rear sensor has a broken pin, and part of that pin is stuck in the wiring connector. The left rear sensor also has a pin that is corroded. Additionally, the main wiring harness along the floor is corroded. This is due to poor location of wire harness in the Type S, and corrosion was due to salt exposure from icy roads. Dealership confirmed this was a known issue and had about a dozen of these replacements in the last few months.

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.

2022 Acura MDX Transfer Case and Transmission Failure – Spline Shearing ​Description of Incident: I am reporting a catastrophic drivetrain failure on my 2022 Acura MDX. This failure occurred at approximately 50,000 miles. The vehicle initially exhibited a leak at the front differential/transfer case gasket. Upon inspection by the dealership, it was confirmed that both the transfer case and the transmission require complete replacement. ​This failure matches the technical details in the recently opened NHTSA Action Number DP26001. The interfacing splines between the transmission and the power take-off unit (transfer case) have failed, which is a known defect currently under investigation. ​Safety Concern: This defect causes a sudden and unexpected loss of all-wheel-drive capability. This results in a significant reduction in vehicle directional control and traction, particularly in wet or slippery conditions, posing an unreasonable safety risk to myself and my family. This occurred well within the expected lifespan of a modern powertrain. ​Resolution: The vehicle is currently undergoing a full transmission and transfer case replacement at the dealership under warranty.

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 car threw several warning lights on the dash. The main indicator was that there was a problem with the air suspension: "Adaptative air suspension problem. Please see your dealer." The left airbag on the suspension then popped, rendering the car undriveable as the compressor would constantly blow air to try to inflate the airbag. The car was repaired at an independent facility at the cost of $2900.00 to replace the suspension airbag and the height sensor, as well as recalibrating ADAS. The car had 66k miles at the time of the incident.

The AWD does not work on the vehicle. Multiple mechanics have been unable to diagnose any problems. We assume it has never worked until needed this season

Driving on the interstate merging from a ramp to go into the highway , heard a loud bang and the car drivetrain started to wobble . Next noticed more torque in front wheels . Transfer case failed internally , all services done at the right mileage by dealer , transmission spline end got wiped out 66,000 miles on vehicle never was abused just going from point A to B.

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.

All Wheel Drive system failure. My vehicle's all wheel drive system failed during a snow storm, it reverted to Front wheel drive only.

My Acura service department notified me at my last oil change that they discovered (accidentally) my transmission / transfer case is damaged and is not transferring power to the rear wheels, rendering the vehicle as 2 wheel drive only. This requires a total replacement costing 16,000 /-. My research indicates this is likely caused by a faulty splined shaft inside the transmission-transfer case assembly used in the early 2022 MDX vehicles.The dashboard info system for SH-AWD indicates that the car IS in All Wheel Drive and there are no messages indicating a problem with the All Wheel Drive. This has not been a problem during non-snow or other slippery conditions, but recent storms have made this a major safety problem for me. The fact that the car sensing system does not detect this problem could cause serious driving danger for unsuspecting drivers. This also prevents Acura/Honda from acting on this issue publicly as owners of this vehicle have no way of knowing the problem exists until it is too late.

In January of 2026, when driving under normal conditions, the 2022 Acura MDX made a loud clunking noise and power was temporarily disrupted. The vehicle had to be stopped on the side of the road as the clunking noise persisted. This occurred on a major highway and put the driver and passengers at risk as we had to quickly get to the shoulder. After inspecting the vehicle for any visible signs of damage we continued home without issues. Now, March of 2026, we took the car for routine service and was contacted by the dealership and informed the transfer case and transmission needed to be replaced. The dealership indicating they were in contact with Honda USA to see what they could do for us. A quick search of the Internet revealed NHTSA DP26001, so we now know this issue has occurred on many Acura MDX's of the same year. No warning lamps illuminated. We were unaware that the vehicle was running in 2erWD instead of 4WD. There were no warnings leading up to the event.

While driving in snow and in light rain noticed the MDX pulling and slipping. I realized that only the front tires were trying to drive the vehicle which was causing the car to pull sideways and slip all over the road. I made an appointment with the ACURA dealership and they found the transmission splines stripped out that drive the rear wheels. There was no warning lamps or indication that anything was broke other than very hard to drive in any kind of snow or rain. Talking with the dealer and looking online this seems to be happening to other MDX s also. My car was fixed under the manufacturer warranty and the transmission and transfer case were replaced.

The component that malfunctioned was the transfer case, the vehicle was already repaired so an inspection isn't possible anymore. The vehicle behaved as normal until the accelerator was pressed enough to make the front wheels lose traction, in which the vehicle couldn't send power to the rear, because the transfer case was shredded up. When needing to accelerate quickly in traffic, the vehicle would completely spin up the front tires, not being able to put the power down. The dealer reproduced the problem, but initially stated that it was most likely due to the salt on the road (it was winter). As spring arrived, the problem still persisted, in which the dealer checked the transfer case and found it was shredded. They replaced the transmission and transfer case under warranty. There were no warning lights, but accelerating quickly would cause the car to spin up the front tires uncontrollably. In corners, this meant severe understeer that could be dangerous in the wrong circumstances.

The contact owns a 2022 Acura MDX. The contact stated that while driving at approximately 2 MPH and depressing the brake pedal, the brakes became stuck or jammed. Later, while driving at approximately 15 MPH, the contact again depressed the brake pedal; however, the brakes failed to respond, remained stuck, and failed to stop the vehicle in an intersection, causing the contact to steer to the right and resulting in a crash with a government dump truck. The driver’s child informed the contact’s husband that the brakes were not working. No warning lights were illuminated at the time of the failure. The contact associated the failure with NHTSA Campaign Number 25V391000 (Service Brakes, Hydraulic). The driver's iPhone detected the crash and automatically contacted the emergency contact and the state police. The driver sustained injuries to the knee, head, neck, and back and was transported to the hospital for medical assistance. There was no airbag deployment, fire, or police report filed; however, a police officer and the state police were present at the scene and moved the vehicle before photos could be taken. The vehicle was towed to an impound lot and later to an auto body shop. The local dealer was contacted and confirmed there were no recalls applicable to the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 65,000.

Issues with the sunroof frame. I've notice popping from the car roof Acura is aware of this issue they've put out a bulletin but only covering cars that have less than 50k miles and are under 4 years old. After researching I see a lot of people are having similar issues where the screws come lose and the sunroof frame breaks causing some sunroof to shatter.

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!

Asymmetrical wear on the front brakes. The outer pad wears out completely while the inner pad( with the brake wear sensor) shows almost no wear. The dealer (Park Place Acura, Plano Texas) brought this to my attention on November 3, 2025 saying only the front pads needed replacing but did not disclose the asymmetrical wear. I took the vehicle back to the Dealer January 15, 2026 for repair after discovering the asymmetrical pad wear and pointed that out to them. The brakes can completely wear to the backing plate on the outer pad while showing no wear issues with the brake sensor on the inner pad. This condition creates an unpredictable and uneven braking response that constitutes a safety defect, as the brake wear indicator system fails to alert the driver to actual brake wear on the outer pad. The brake wear sensor is designed assuming symmetrical pad wear. When wear is asymmetrical, the sensor fails to trigger a warning, leaving the driver unaware of a dangerous condition. The dealer has finally replaced the pads and rotors, symptoms of the problem but, has not addressed the underlying cause of the problem...the calipers. I have received the vehicle back from the dealer but did not sign a release and the issue remains open. The vehicle currently has approximately 29,400 miles. I have taken this issue to Acura corporate(Honda Motor Company) and they have it under review but keep delaying with no confirmed resolution. I sent a certified letter to American Honda Motor Company, Acura client relations on February 3, 2026 and they signed for it on February 11, 2026 and contacted me by email on March 11,2026. Acura took 28 days to respond to my certified letter and has provided no resolution timeline since.The vehicle was under the original manufacturers warranty at the time of this issue and notification.

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

Review mirror became detached , rendering it inoperable and a safety concern. Research shows it a known issue and design flaw for the bracket.

PURCHASED A TIRED FOR GIGA TIRES HAD THE DEALERSHIP , ACURA OF COLUMBUS ATTEMPT TO MOUNT AND INSTALL THE TECHNICIAN DISCOVERS A HOLE AND A SLICE ON AND IN THE TIRE, CONTACTED GIGA TIRE FOR AN EXCHANGE THEY STATED THAT THE HOLE IN THE TIRE WAS CAUSED BY ROAD HAZARD, THE TIRE HAS NEVER BEEN DRIVEN ON, IT BRAND NEW OR CLAIMED TOO BE

When the vehicle decelerates—either from high speed or while already moving slowly—it frequently jerks just before coming to a complete stop. This issue is especially noticeable at very low speeds or during final braking, where the vehicle may lurch forward by a few inches unless the brakes are applied firmly. Despite multiple visits to the dealership, including transmission resets and software updates, the problem persists. The dealer has not provided a resolution or adequate follow-up. This behavior poses a serious safety risk, particularly in high-traffic areas where precise stopping is critical.

My 2022 Acura MDX A-Spec developed an electrical problem where I heard an extremely loud pop come from the stereo system before it stopped working and then the infotainment screen stopped working as well. I took it to the dealer who determined that a water leak in the sunroof drain plug caused the interior of the vehicle to become saturated with water and cause corrosion to electrical bundles. By searching the internet, I found that this was a known manufacturer’s defect with this specific model that had been made known to the dealership and they did nothing about it. Having an electrical problem could have put us at risk had things stopped working at an inopportune time on the highway or caused a malfunction at a critical time while driving. I submitted a request to Acura for an extended warranty of this problem, but that request was denied. They said that there had been an extended warranty for this issue, but that it had expired somewhere between March 2025 (when my normal warranty expired) and October 2025 (when I took it to the dealership for an evaluation of this problem). Acura wouldn’t say when that was, but I was surprised that they were of no help. As I mentioned, this is a known manufacturer’s defect that should have been checked per my normal maintenance visits, but it was ignored until it became an actual problem. They certainly could have been more proactive and it would have saved us a lot of time and expense.

I was driving to work yesterday morning- busiest time of day on probably the busiest road in our area. My car started freaking out randomly. It popped up numerous errors. The steering wheel locked up. The brakes weren’t working well. I had a car behind me. THANKFULLY they were paying attention because they were very close to rear ending me. But they dodged me. I finally jerked the wheel and got it pulled over to the side of the road until someone could come get me and take me to work. There could have been a different outcome. After being hit head on in February of this year, this incident was NOT good for my PTSD!!!! My anxiety has been through the roof since this incident with a car that I bought SIX MONTHS AGO! As soon as I can trade this car off and get something else, I will be. We still don’t know what it’s wrong with it. We are going to have it towed somewhere on Monday. This was a major safety risk for me AND for the others on the road!!! If my kids had been in the car, I would’ve been even more upset over the situation.

Experienced loss of all wheel drive with no notification, warning lights, etc. Vehicle is only in front wheel drive. Issue caused the vehicle to perform very poorly in inclement weather and myself, wife and children became stuck in the snow. The problem has been confirmed with Acura dealership. Currently it is in the shop awaiting further info.

While driving our sunroof exploded. There was a loud pop, I thought a tire, my grand daughter thought a gun shot. We pulled off the road to find the sunroof had cracked down the sides and the back and a crack diagonally. We were traveling so we taped it up and when we returned home took the MDX to the Acura dealer.

While driving with my small children in the vehicle, my 2022 Acura MDX suddenly displayed multiple simultaneous system failures without warning and the steering wheel locked and the car slowed and the brakes didn't work well: •Brake System Problem – warning that braking performance may be reduced •Electric Power Steering Problem – “Do Not Drive” warning •Vehicle Stability Assist Problem •Hill Start Assist Problem •All Wheel Drive System Problem - •Adaptive Cruise Control Problem •Collision Mitigation Braking System Problem •Lane Keeping Assist System Problem •Trailer Stability Assist System Problem •Brake hold system problem •Vehicle Stability Assist Problem •Electric Power Steering System Problem •Low Speed Braking Control Problem •Road Departure Mitigation System Problem These failures created a serious risk to my life as well as my children's lives by simultaneously disabling braking, steering assist, stability control, and AWD traction. If this had occurred at highway speeds or in a location without space to maneuver, it could have caused a severe crash and even death. The vehicle was towed to the dealer immediately.The tow truck driver stated that he had transported another 2022 Acura MDX with identical failures earlier the same day, suggesting this may be a widespread defect. The dealer found no recalls and attributed the issue to a steering angle sensor malfunction. Given the severity and the risk of injury or death, I am reporting this to NHTSA. Request: NHTSA investigation into whether this is part of a broader safety defect affecting 2022 Acura MDX models, and whether a recall or manufacturer corrective action is warranted.

The engine suddenly shut off when the vehicle was waiting for traffic light and at full stop. The vehicle would not restart after multiple attempts and had to be towed to dealership. Mechanic at the dealership said the "Idle Stop" feature can drain the battery quickly and had to replace a new battery. We consider this a reportable safety hazard and a potential design defect because 1. The "Idle Stop" feature is turned on by default, though it can be manually turned off. 2. The incident occurred in a very abrupt and unpredictable fashion. The vehicle was started normally about 30-40 minutes before the incidents and has been driven normally in a typical city traffic condition till the incidents occurred. During this period, the computer system did not give off any warning related to a total battery failure.

“fuel door stuck,” “no manual override,” “can’t refuel.” As per Acura manual there is way to open a gas/fuel door/cap/lid when actual way of opening through electronically fails due actuators or some other reasons. There is a manual release pull cable behind a removable access panel in the driver’s side of the cargo area trim, near or behind the wheel well lining. manual fuel door release is inside the trunk (cargo area) in case the electronic fuel door release fails.

I was driving my car on the interstate and momentarily stopped due to traffic congestion. My engine idle stop feature was on and engaged as expected for the short stop, but the vehicle then stalled when I attempted to drive. There seemed to be an electrical issue with various lights coming on the dash to indicate a problem. I could not get the car to restart and was stuck in the left lane with cars then going around my stalled vehicle. I called 911 for help after I could not restart the car after 3 attempts. After approximately 5 minutes, I pressed the ignition button again, and this time my car was able to restart and drive normally so that I could exit the highway.

On [XXX] I headed out for an event. I had been driving for 8 minutes when I lost the ability to steer, the Brake, TSA, and Steering system warning lights flashed on the dashboard and I immediately turned onto a side street. One message stated to contact dealership immediately, DO NOT DRIVE. The car was towed to Mungenast St Louis Acura. It was scheduled for service on Monday, June 23, already, so this was perfect. It was determined the battery failed. My concern is that prior to this event the vehicle's warning system gave no indication the battery needed attention, was low in power, or anything else related to the battery. I was on a busy street however, this event could have been very much different had I decided to take the highway to my event. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Acura Headquarters USA 1919 Torrence Boulevard Torrence, California 90501 Mr. [XXX] [XXX] [XXX] Email: [XXX] Dear Sir or Madam, I am writing your company to the attention of whomever oversees the product development and design of the 2022 ACURA MDX and to warn them that certain system features and design flaws of this make and model vehicle will undoubtedly lead to the death of someone in the near future as was nearly the case with myself and spouse very recently. On Sunday [XXX], my spouse and I attended church services that morning. Fortunately, after services our Acura MDX did start as usual, and we began our journey home.Upom arriving home, we backed our car into our garage and during that process thankfully I had the wits to unlock the passenger and driver side door mechanisms. Once we enteredthe garage and at thta point, our car went absolutely DEAD. Our car stayed dead for the next 5 1/2 hours. Had I not unlocked those doors, we would have been trapped inside for that duration of time, only to be found dead fron suffocation and asphysxiation from being in a car with all the windows rolled up, no power to the vehicle and no way to get out, while beingdeprived of oxygen. AT that point, your manufactured vehicle became a death trap for us.We're the fortunate ones who lived through the experience and to be able to tell the story. Others may not be so lucky to tell theirs and there will be others. We wanted the manufacturer to understand the full implications of our letter and to stress in the strongest terms possible that this is a very serious matter that will eventually cost lives, as it nearly cost us ours. The vehicle in question is VIN# [XXX] and was last serviced at Vandergriff Acura in Arlington, Texas on 6/13/2025 INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I have experienced several incidents where I am driving on open road with no obstructions in front of my vehicle and the collision braking feature suddenly engages. This has led to vehicles behind me almost rear ending my car due to the unexpected, strong, and abrupt nature of the braking on open road.

Incident happened on 2-JUN-2025 While driving home from work at around 45-50 mph, all of a sudden, every warning light on the dashboard illuminated, displaying various messages such as “Brake System Failure - See Your Dealer,” “Power Steering Failure - See Your Dealer,” “Road Departure Mitigation System Problem - See Your Dealer,” “Lane Keeping Assist System Problem - See Your Dealer,” and “Collision Mitigation Braking System Problem - See Your Dealer,” among others. The power steering became extremely difficult to turn, almost as if it had locked up, while the brakes were also stiff but seemed to function. The steering wheel completely locked, and I was fortunate enough to maneuver the car to the side of the road by forcing it. After turning the car off and on about three times, everything finally returned to normal on the third attempt. I immediately contacted the Acura dealership to report the issue and scheduled an appointment, feeling apprehensive about driving on the highway, fearing the problem might recur. After dropping off the vehicle, the Acura dealership diagnosed the issue, as a “Power Steering Rack/gearbox malfunction. Luckily it was covered under the extended warranty. Q.1) The components that failed or malfunctioned include the brake system, power steering system, road departure mitigation system, lane keeping assist system, and collision mitigation braking system. These components should be available for inspection upon request at the dealership where I reported the issue. Q.2) My safety and the safety of others were significantly at risk due to the sudden failure of multiple critical systems. The power steering became extremely difficult to operate, and the steering wheel locked up, making it challenging to control the vehicle. This could have resulted in an accident. Q.3) Yes, the problem was confirmed by the Acura dealership after I reported the issue and dropped off the vehicle for inspection. They diagnosed the malfunction.

We were at a stop sign. I went to hit the gas and then a warning flash on the screen that there is a problem with the rear axle of the all wheel drive and that it was switching to front drive only. During that 5-10 seconds we went through the intersection on creep mode, 2-5 mph max. I felt helpless. My wife has had it happen to her 2 times. My first experience was tonight and it could have been bad if there was a car on the road we were crossing.

When starting the vehicle, the steering column extends to the operating position. When it extends, there is a grinding vibration coming up from the base on the floor. This is a very troubling sound as the entire dashboard vibrates.

I was stopped at a traffic light and my car just shut off for no reason. I had to keep trying to start it but it wouldn't turn back on. I finally got the car to completely turn off, sat a couple minutes and then restarted it. Thankfully I was able to get it back on before the light changed again.

the electric power steering system indicator light came on and the car would not start-- the indicator went off and the car then started--2 weeks later the same issue occurred when i went to start the car this time all indicator lights came on and then the electric power steering system indicator light came on and the car would not start-- after 5 minutes the car started--brought the car in to dealer and they said nothing wrong the indicator light is off--they replaced the battery but the battery was changed only 15 months ago---i googled the issue and it appears many people are having the same issue with no dealer recourse provided for this issue in which the driver can lose steering to the car--

My vehicle has 80,000 miles. It has a popping sound when accelerating from stop. Dealership found metal chunks in the transmission and transfer case. Luckily I brought the problem to them before catastrophic failure while driving. Both are needing complete replacements.

While driving a 2022 Acura MDX Advance AWD in snowy conditions, I noticed reduced traction and abnormal drivability. Dealer inspection confirmed a catastrophic failure: the front differential and transmission splines were stripped, causing the vehicle to operate in front-wheel drive only. The dealer verified the failure and documented it as a defect on the repair order. The vehicle was maintained exclusively at the dealership since new, and failure occurred at approximately 76,000 miles, outside the original powertrain warranty. There were no warning lights prior to the failure, but loss of AWD in snowy conditions created a significant safety risk.This is a safety-relevant defect affecting traction and stability in adverse conditions.

During a winter freeze event, the vehicle was unable to climb a slight incline despite being equipped with all-wheel drive. The rear wheels did not appear to be receiving power, and the vehicle experienced significant wheel slip under light throttle input. This occurred in normal driving conditions and was unexpected given the vehicle’s AWD system. There were no warning lights, diagnostic messages, or fault indicators displayed on the instrument cluster at the time of the incident. The lack of any driver notification made it difficult to identify that the AWD system was not functioning properly. After experiencing the issue, the vehicle was taken to an authorized dealership for inspection. The initial assessment did not identify a problem. However, after further review and comparison with a properly functioning vehicle, the dealership confirmed a failure within the SH-AWD system. The affected components were replaced under warranty. The failed components should be available for inspection upon request. The safety concern stems from the absence of warning indicators combined with the loss of intended AWD functionality. In low-traction conditions, the inability of the system to properly distribute power can increase the risk of loss of control, reduced acceleration capability, or inability to safely merge or climb inclines. No prior warning lamps or alerts were presented before the incident.