2017 Acura MDX Complaint Log

My 2017 Acura MDX unexpectedly shifts into neutral while I am driving, specifically when slowing down approaching stop signs. When this happens, the vehicle loses power and will not accelerate, creating a dangerous situation in traffic. I have to manually press the Drive button to put the vehicle back into gear while still on the road. This has happened multiple times without warning and no recall exists for this issue. This is a serious safety hazard because the vehicle can lose power in traffic or intersections.

My vehicles motor is internally destroying itself. The rod bearing has gone and the motor is none functional. The car only has 98k miles. I have gotten the oil changed every 3k-4k miles and used 0W-20 oil as the manufacturer desired. It seems as though there has been 1.4million cars with this same issue as mine. I think a recall is in order. OEM new motor is $25.7k.

I am reporting a major safety failure on my 2017 Acura MDX regarding the forward-facing multipurpose camera. Out of nowhere, the camera failed and triggered a cascade of warning lights across my entire dashboard. Because of this hardware defect, all of the critical safety systems—including the Collision Mitigation Braking System (CMBS), Lane Keeping Assist (LKAS), and Adaptive Cruise Control—are now completely disabled. Having these emergency systems shut down while driving in traffic is a serious safety hazard. Furthermore, the constant flashing of 5 or 6 different warning lights on the dash is a massive distraction while trying to operate the vehicle. This is a well-documented hardware failure in these models, and it shouldn't be left to the owners to pay thousands of dollars to fix a primary safety component that failed prematurely. This needs to be investigated as a mandatory safety recall before these failures lead to an accident.

When I have already started to go in motion, for example when turning left, and I let go of the gas pedal and then press the gas again once I decide its safe to turn, my car doesn't respond to the gas for about a couple of seconds. This has also happened when I am driving on the highway and I am already in motion and I want to go faster to pass another vehicle, my car hesitates for a couple of seconds before it responds to me pushing the gas pedal.

A rod bearing inside the engine failed and created metal shavings inside the engine. The vehicle has not been fixed yet, so it is available for inspection currently, but I will be having the engine replaced in the next 2 weeks. With the metal shavings inside the engine it could cause a catastrophic failure of the engine while driving at any point The dealer has inspected and diagnose it as a rod bearing failure I reached out to Acura customer service to make them aware and ask for assistance in reviewing for coverage in the ongoing recall, but since my vehicle was not manufactured in the plant covered under the recall, they are unable to help. I asked for a good will credit and after they conferred with the dealer they stated the failure was not due to a manufacturing defect, therefore they cannot help. There were no warning lamps or messages from the vehicle. The only symptom was a ticking sound, that got louder at higher RPMs, coming from the front of the engine on the passenger side. I’ll also add that based on CARFAX report and our service records since we bought the vehicle, all recommended maintenance has been performed as recommended by the manufacturer.

I noticed a whirring sound while driving my MDX. The repair shop investigated and noted that the bearing in my transfer case assembly is failing and needs immediate replacement to prevent total power loss to the propulsion system of the car. Current milage of the vehicle is 99,500.

Unknown Front left tire is rumbling. Ever since I purchased this vehicle I have had problems with the tires or suspension dealership replaced 2 tires since I purchased in July 2025

The main issue is engine knocking and ticking also winding noise. There has been an issue with electrical with rear passengers getting burnt due to heat coming out of rear when rear system is off.

There were several instances where my vehicle either accelerated or decelerated while I was driving. I first noticed the issue about a week after I purchased the car in May 2022. I took it back to Acura of Brookfield, and they said they couldn’t replicate the issue. I also took my car to Acura of Brookfield in September 2023 for the same jerking issue. They charged me for an update, but the issue did not change. I continued noticing the problem over the years, but it happened more frequently in 2025. In May 2025, I was driving down a hill in Brookfield, Wisconsin, when my car jerked aggressively and then accelerated on its own. Throughout the rest of the year, it would either accelerate or decelerate while I was on the highway. On January 20, while I was on my way to the gym, my car jerked and decelerated while I was on the highway. I was able to pick up speed again and continue driving to the gym. When I came back out, my car started, but it would not shift out of park. I had the car towed to Acura of Brookfield, and they said something about the hydraulics inside the transmission being bad, and that they had to replace the entire transmission.

Our 2017 Acura MDX has developed a crank rod bearing knock. Fox Acura in Grand Rapids, Michigan, has advised that our vehicle’s VIN is not included in service bulletin 23 036 concerning connecting rod bearing failure, despite evidence that similar failures have occurred in Acura 3.5 liter engines outside the bulletin’s listed VIN range. I intend to submit a safety complaint to the NTSB regarding this issue. Fox Acura has recommended a full engine replacement. I respectfully request that Acura expand the scope of the service bulletin to include our vehicle and provide coverage for the recommended repair.

Hello, I am writing to report that my 2017 vehicle is experiencing the same issue that was subject to a recall on the 2016 models. Despite the recall being associated with the 2016 year, my 2017 vehicle is showing identical symptoms and concerns. This raises serious questions about safety, reliability, and whether this issue extends beyond the originally recalled model year. I would like this concern formally documented and request a review of my vehicle to determine whether it qualifies for repair, inspection, or coverage related to the prior recall. Please advise on the next steps and whether this issue has been reported or addressed for 2017 models. Vehicle details: Year: 2017 I appreciate your prompt attention to this matter and look forward to your response. Sincerely, [XXX] If I get killed me or my [XXX] son, you all will be responsible. You made these faulty vehicles. [XXX] I'm have to get a lawyer involved if issues are not addressed. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Automatic transmission. The car does not go to park when selecting park, it goes into neutral mode. It does not park at all.

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 to: 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.

My 2017 Acura MDX has an engine failure due to connecting rod bearing seizure in the 3.5L V6 engine. Recall 23V-751 covered model year 2016-2020 Acura MDX vehicles and mine is a 2017. But, my VIN is not in Honda's recall range. The ODI had apparently received 414 reports of connecting rod bearing failures in the 3.5L V6 engine that are outside of 23V-751. There is now an ODI Resume with number PE25008. See the two linked PDF documents below. [XXX] [XXX] The Acura dealer said that this is definitely the same problem they have seen on vehicles under the recall range. In their computer system where it says "Cause" they wrote "Cylinder 6 spun causing the knocking noise. excessive material in oil pan. if under the rod recall, it would need a long block." I have a screenshot of this if you would like it. My service representative at the dealership texted me the following "The engineer from Acura was here today and our District Manager - the engineer said they will not be expanding the recall on the Acura side. Just thought I'd let you know." I have this text message if you would like a screenshot of it. So, it sounds like Acura will not voluntarily expand the recall. This is going to cost me about $12K to fix. Is the NHTSA ODI investigation still ongoing? When will I know if the VIN range will be expanded as I would like to get reimbursed by Acura for these repairs. Thanks, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

PLEASE SEE ATTACHMENT:

The contact owns a 2017 Acura MDX. The contact stated that while driving at 50 MPH, the transmission system error message displayed. The contact pulled over to the right side of the road and turned off, and attempted to restart the vehicle however, the vehicle failed to respond. A local dealer was contacted. The vehicle was towed to the dealer to be diagnosed, and it was determined that the transmission sensor needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not under recall and suggested that the failure be reported to the NHTSA Hotline. The failure mileage was 92,000.

I was stopped, my vehicle brake stopped working after being stopped on a road at a traffic light behind a semi truck. My vehicle crawled slowly forward, it would not stop (like the car wash pace). My brake would not work, I tried putting car in park to stop it moving. It proceeded to ram into the semi in front of me and keep trying to go forward until the light turned green and the semi drove away at that point I was able to drive my car and pull off the road and my brake began to work when I pulled off. It completely stopped working when I was on a busy road and caused the accident. It could have been much worse if I was not stopped already.

The contact owns a 2017 Acura MDX. The contact stated that the dealer recommended that the timing belt be replaced. After the timing belt was replaced, there was a ticking sound coming from the vehicle while being started. The sound occurred while driving at various speeds or while the vehicle was idling. The check engine warning light was illuminated while driving approximately 60 MPH. The contact pulled over, turned off, and restarted the vehicle, and the warning light was no longer illuminated. The vehicle was returned to the dealer, who diagnosed that the short block, bearings, and the oil pan needed to be replaced. The dealer recommended that the engine needed to be replaced. The vehicle was not repaired. The contact learned of NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was informed of the failure and confirmed that the VIN was not included in the recall. The failure mileage was approximately 93,000.

I was driving my vehicle on the highway at 65 MPH when the engine light came on and began blinking- no other issues. I tried to pass a vehicle, and my vehicle would not accelerate, I was less than a mile from work. I called the dealership the same day and was able to take it in. When I called, I explained everything the dealership told me I could either tow it or try to drive it in. I went out to the car later and moved it from one parking lot to another and had no issues and no lights came on alerting something was wrong. Later in the day as I was driving 65 mph again on interstate, just as I was slowing down to get off all of the lights for everything came on and the engine was making a terrible knocking sound. I slowly pulled over and put my hazards on while driving 15/20 mph. I was near the dealership and was able to coast into the repair shop. Was informed the engine needed to be replaced due to a misfire on cylinder 2 and rod knock- most likely rod bearings and crank shaft issue with broken rod. We have an extended warranty so for a used engine found at a salvage yard won't cost much out of pocket with a similar amount of miles. Used engine will have 12K mile warranty/12months. The dealership has the engine- that info can be given upon request.

Dear Acura, My MDX is showing many lights on the dashboard (LKAS, ACC, Break System, CMBS, RDM) associates with the code U3000-49 and all those features are deactivated due to the failure mentioned. I was searching on the website for this error and found many Acura MDX oweners experiencing the same issue which apparently the Windshield Lane Departure Camera. Honestly, Acura should take a look into this since this issue is getting worse and those are safety features on the vehicle. Regards,

On my way home from work one evening, the car started making a loud knocking noise, then the car started losing power, the rpms jumping up and down and the dashboard lit up with warnings of all kinds. The traffic was somewhat heavy and and cars were speeding pass me, brakes screeching, horns blowing and my car steadily losing power. I was afraid, I didn't know what to do. I was trying to find a safe place to pull off the road. It was a traumatic experience as a large truck swerved into the other lane of traffic to avoid hitting me, almost causing an accident. Luckily I made it home safely. I had a mechanic look at it the next day and he said the engine needed to be replaced. Not convinced of the diagnosis, I had the car towed to another mechanic who confirmed the engine would have to be replaced. I had no issues with the car or the mechanics of the car prior to this. I could not for the life of me understand how my 2017 Acura MDX with only 74,000 miles on it, could possibly need a new engine unless it was defective. So I then towed the car to the Acura dealership where they confirmed, the engine needed to be replaced. However, when I asked about the engine recall, I was told my VIN is not included in the recall although it is the same exact issue. Acura did offer a one time goodwill assistance for 25% of the repair costs if performed at Acura. Admission of guilt knowing my car has a defective engine is what that says to me about Acura's offer of 25%! Since the car was useless without a engine, I have since had it repaired by an independent mechanic. I'm very disappointed in Acura.

My 2017 Acura MDX with only 87,000 miles has suffered catastrophic engine failure. The vehicle has been properly maintained and all repairs recommended by the dealership where the performed since it was purchased new. While the dealership has confirmed the engine failure cause is exactly what is feared by the Recall Report 23V-751, Honda has refused to acknowledge their responsibility since my VIN does not fall within their "identified" inventory. The engine is currently at the dealership and will be maintained as evidence for the "to-be-filed" lawsuit that will be required to recover the repair costs. The engine seized while driving and had to maneuver the vehicle to a safe location. Had I been travelling on the highway at the time. the outcome would have been disastrous. The problem is described in detail in Recall Report 23V-251. There were no warning lights or issues other than a clunking sound the night before. I was driving to the dealership at the time the engine failure occurred.

Manufacturer has not reimbursed recall repair paid out-of-pocket despite complete documentation and extended delay. Which was opened on 10/3/2025 the repair was done back in Feb 2024 !

The LKAS and Parking systems will randomly decide to cease functioning and express error messages. The car has not been in an accident.

Blind spot warning, forward collision warning, lane departure warning, lane keep assistance, and high beam lights keep flashing on dash giving a code of: U3000-49. The dealership quoted me $2000 to fix a faulty front facing camera. Research shows this is happening to thousands of people.

One or more connecting rod bearings are failing. There is a knocking noise coming from the lower end of the engine which is more pronounced under load. There is a risk of the engine failing completely while driving and causing risk to myself, my passengers, and other drivers. This issue is know to happen in the same engine (J35Y5) and certain VINs are already under recall.

the camera keep going online/offline in a middle of a highway while I'm on cruise control LKAS, ACC, Camera, and ect warning lights keep coming on.

Odometer Fraud. The contact purchased a 2017 Acura MDX. The contact stated that upon taking the vehicle to an independent mechanic for engine service, the mechanic discovered that there was a mileage discrepancy with the vehicle. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 135,316, however, the independent mechanic discovered that the actual mileage was 289,471.

I recently took my vehicle in for service due to a noise coming from the oil pan area. Upon further inspection from my mechanic is appears that my vehicle had metal shavings in the oil pan and seems to be related to the connecting rod bearing issue that a recall was issued for. Unfortunately my vehicle was not part of the recall for this issue and perhaps should be included in potential expanded recall. I was told by my mechanic that I would need to either buy a used motor or new motor however my concern with a used motor is that I could potentially have the same issue again and be dealing with engine failure.

The front lane assist camera has failed internally and now the lane assist, forward collision and adaptive cruise control no longer work. This has been a known issue and has happened to other Acura MDXs. The warning lights are now coming on saying the vehicle had a brake system error. It also states that all systems related to this camera are inoperable.

I took my car to get an oil change. When I left the dealership, I heard a rattle I turned around he told me to bring it back in the morning. I went back the very next morning and they told me my engine valves needed to be adjusted. It took them from Monday until Thursday to complete the work and when I picked it up on Thursday the same noise was occurring. I left it there, on Monday they asked if I could come ride with a technician on Tuesday. Technician heard the noise stated they will get it done it was the timing change. From Monday-Friday I went to retrieve my car and the same noise nothing change and I called and told. Took it back on Tuesday they told me it was a lower engine rod that I would need to replace my motor, later went to the store and the car never move out of park gear. Got it towed back to Acura and they wouldn’t help me.

Phone: [XXX] VIN: [XXX] Vehicle : 2017 Acura MDX Dealership: DCH Montclair Acura, Bloomfield NJ 07103 Warranty: Extended Warranty Active Previous Case No: [XXX] Subject : Formal Complaint-Dashboard Errors and Inadequate Warranty Support Dear Acura Client Relations, I am writing to formally file a complaint regarding ongoing dashboard error messages in my 2017 Acura MDX and the poor handling of the situation by both your Customer service and DCH Montclair Acura in Bloomfield, NJ. The errors occur intermittently during my work commute. When I contacted customer service, I was told by Case Manager (Andrew) on [XXX] @ [XXX] pm that nothing could be done unless I brought the vehicle in while the warning lights were actively on. This is unrealistic and dismissive. It is not always possible or safe to divert immediately to a dealership and I do not believe that Acura expects its customers to drive around hoping a warning light stays on long enough to be seen by a technician. I understand that modern vehicles like the MDX store fault codes even after warning lights disappear. That Is the purpose of diagnostic equipment. Denying a warranty repair based on whether a technician witnessed an error live undermines the value of the extended warranty i paid for raises serious concerns about safety and accountability. I plan to visit DCH Montclair and attempt to schedule an appointment in advance. I expect a full diagnostic scan to be performed, with no fee applied unless the issue is clearly outside of warranty. I am requesting the following: A complete diagnostic of stored fault codes, regardless of whether the dashboard errors are active at the time of service. Full written documentation of the findings and action taken A clear explanation of any charges and why they would apply under my extended warranty. If this matter is not resolved appropriately, I will escalate it through the BBB INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I was driving on the road and an electronic parking error light came up, along with emissions error. I pulled over to the side and I could not start the vehicle and the gears won’t shift

The engine has developed rapidly increasing knocking sound. Acura has been notified and has suggested I get an official diagnosis from dealer. I have done so at a cost of $1,300. The dealer's head mechanic has confirmed that I have an engine failure which exactly resembles the connect rod bearing recall found on the same engine type and of vehicles of the same year. Acura has denied any assistance in resolving this, even after receiving a written opinion from a dealer. I am lucky to have taken the steps to diagnose, prior to failure.

The contact owns a 2017 Acura MDX. The contact stated while driving approximately 70 MPH, the vehicle hesitated before losing automotive power. Several unknown warning lights were illuminated. The contact pulled over to the shoulder of the road, and the vehicle was towed to a local independent mechanic to be diagnosed. The contact was informed that the local dealer needed to be contacted for assistance. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 138,000.

The contact owns a 2017 Acura MDX. The contact stated while driving at an undisclosed speed, there was an abnormal sound coming from the vehicle. There was no warning light illuminated. The vehicle was towed to the dealer where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 76,000.

On [XXX], while driving at approximately 50 mph on [XXX], the vehicle experienced a sudden and complete loss of power accompanied by severe shuddering. Multiple warning lights illuminated on the dashboard, including the check engine light. The vehicle would momentarily regain power before failing again. This created a significant safety hazard, as I was unable to maintain speed or accelerate safely in traffic. The vehicle was immediately taken to Team Gillman & then transferred to Sterling McCall Acura located at Houston, TX. The dealership diagnosed a catastrophic internal engine failure, originating from the bottom end, requiring a full engine replacement. The vehicle's mileage at the time of failure was approximately 142,250 miles. This critical failure occurred without any prior warning. I am aware of NHTSA Investigation Number ODI PE25008 regarding faulty connecting rods in certain Acura and Honda vehicles, which can lead to sudden engine failure. While my vehicle's VIN was not included in the initial recall population, its symptoms and failure mode are identical to those described in the investigation. I requested that Acura address this known defect through a goodwill repair, given the clear correlation to an ongoing federal safety investigation. This request was formally denied June 2025. Given that the NHTSA has expanded its investigation to include additional vehicles and model years, including that of my MDX, I am filing this complaint to ensure my vehicle and its specific failure data are included in the official NHTSA record. Urge the agency to compel American Honda Motor Co. to expand any subsequent recall to include my vehicle and others with identical failure patterns. The sudden nature of this engine failure presents an unacceptable safety risk to the driver, passengers, and the public. Thank you for your attention to this matter. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

2017 Acura Mdx. Earlier this year I suspected something was wrong with the car so we took it to Acura in weir canyon to get it checked out. They figured it was the throttle body so they replaced it and then about 2 weeks later the engine had a catastrophic failure. I was driving the car coming out of the freeway and right before I turned right the engine made a huge noise. We tried asking Acura for goodwill assistance but they did not offer anything at all because I bought the car used. I always took the car for its maintenance while the time I've had it. Acura then quoted me for around an 8 thousand dollar repair and then took it to a mechanic and they said its better to get the whole engine replaced at that point and so I did. I've always had Honda cars my whole life and they have been nothing but good but this was something different. I saw that there was a lawsuit going on and a lot of people has had the same problem with there engine specifically the connecting rod bearing which is the problem my car had.

The contact owns a 2017 Acura MDX. The contact stated that while driving 25 MPH, there an abnormal sound coming from the engine. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the connecting rod bearing, resulting in damages to the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact stated that three years prior the vehicle was diagnosed with connecting road bearing failure. The vehicle was under warranty and the engine was replaced. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure. The failure mileage was approximately 160,000.

While travelling at highway speeds, I removed my foot from the accelerator to adjust speed for a lane change. When changing lanes and acceleration was then needed, there was no response from the engine for ~5 seconds. I depressed the accelerator several times with no response, which nearly caused an accident during the lane change. The engine did not stall. Eventually, the engine responded to the accelerator input. This has occurred multiple times under similar circumstances.

On [XXX], while driving from Orlando, FL to Atlanta, GA, I experienced one of the most terrifying moments of my life. I was traveling on the freeway at approximately 80 MPH, in lane 3 or 4, when my vehicle suddenly began to hesitate and lose power without any warning. In that moment, fear and panic took over. Cars were flying past me, and I could feel my truck rapidly decelerating. I immediately turned on my hazard lights and began honking to alert other drivers, praying they would give me space to move over. Thankfully, I was able to carefully navigate across lanes and reach the far-left shoulder. Once I got into the acceleration/deceleration lane, the vehicle suddenly lurched forward and began accelerating again—completely on its own. I knew I couldn't risk staying on the road, so I exited at the next ramp and pulled into a gas station, still shaken. After refueling, I attempted to restart the truck, but it would no longer shift into Drive or Neutral. The truck was stuck in Park and completely inoperable. A roadside mechanic responded to my call for help and made several attempts to restore mobility, but nothing worked. I spent the evening stranded and alone, unsure of what to do next. The following day, [XXX], I had the vehicle towed to Honda South near Atlanta, GA. After inspection, I was informed that the issue was a complete transmission failure. In addition to needing a new transmission, the vehicle also required replacement of critical sub-assembly components, including the transmission control module (TCM). This situation was not just a mechanical failure—it was a serious safety event that put my life and the lives of others at risk. I’m still shaken by what happened and deeply concerned about how such a failure could occur so suddenly and without warning. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The multipurpose front camera on my 2017 Acura MDX failed with DTC U3000‑49, disabling LKAS, ACC, CMBS, and FCW. Acura issued Service Bulletin 23‑008 acknowledging a software defect, but my VIN was denied eligibility despite matching the bulletin’s criteria. This is a safety‑critical failure affecting many owners, and Acura is forcing consumers to pay for camera replacement instead of providing the software fix. My 2017 Acura MDX (VIN [XXX] ) is experiencing a failure of the multipurpose front camera, which controls several collision‑avoidance systems including: Lane Keeping Assist System (LKAS) Adaptive Cruise Control (ACC) Collision Mitigation Braking System (CMBS) Forward Collision Warning (FCW) All of these systems became disabled, and the vehicle displays multiple warning lights. The diagnostic code stored is U3000‑49 (FCW/LDW Camera Unit Malfunction). Acura issued Service Bulletin 23‑008, which states that: “A problem exists with the detection logic in the multipurpose camera software.” The bulletin applies to all 2017–2018 Acura MDX trims, and the corrective action is a software update to the camera module. My vehicle matches the exact symptoms described in the bulletin. However, Acura and the dealership informed me that my VIN is “not eligible” for the update, even though the bulletin explicitly lists my model year and trim. Instead, I was told I must pay for a full camera replacement, costing over $1,200, despite Acura acknowledging the issue is software‑related. This leaves me with a disabled safety system and no manufacturer‑supported remedy. The failure is widespread among 2017 MDX owners, and many report identical symptoms and identical denials of coverage. Because this defect disables multiple federally relevant safety systems simultaneously, I believe this should be treated as a safety recall, not a customer‑paid repair. I am requesting that NHTSA investigate this issue and require Acura to provide the software update.Thank you. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2017 Acura MDX. The contact stated that while his wife was driving approximately 35 MPH, the check engine warning light was displayed, and the vehicle was driving rough and failed to properly accelerate. The vehicle was slowly driven to the nearby local dealer who examined the engine and discovered metal shavings inside the oil pan. The contact was informed that the engine rod bearings had failed. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 23V751000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 111,000.

Our engine started making a loud knocking noise that was clearly not good. We had a friend who is a mechanic come put it on the computer and he diagnosed that the rocker arm took out some valves or lifters. He looked up the car and found a recall for our make and model (2017 MDX with the 3.5L engine) that matches our exact issue. But the VIN does not appear in the search so our car is not covered by the recall despite it clearly being caused by the defect. I understand that there is an investigation into this that the NHTSA opened and Honda has been pushing for extensions. I was encouraged to add our car to this list to help you all see that the problem is much larger than originally thought. We are in a very tough spot and do not have the $5-10k to replace the engine. If the recall is not expanded soon, our only hope is that we get a goodwill repair. We have requested this, but are waiting to hear back from the dealer. Thank you for looking into this. I’m sure we are not the only people in a tough financial spot being affected by this. We appreciate your efforts to protect consumers!

My Vehicle intermittently fails to go into "Drive" when pressing the gear shift button. Additionally, various warning messages appear at random, including: Lane Keeping Assist Problem, & Road Departure Mitigation System Problem. I have brought my vehicle to DCH Montclair Acura#709, located at 100 Bloomfield Ave, Verona, NJ 07044, on January 10, 2025, February 18, 2025, and March 13, 2025. Despite these visits and an inspection conducted by my extended warranty provider, the problem continues. On [XXX], while my daughter was a passenger, the vehicle once again failed to shift into drive when pressing the "D" button. This incident, like others before it, occurred without warning and reinforces my growing concern about the safety and reliability of the vehicle. I am now afraid to drive the car, unsure when it might fail again. I respectfully request that Acura take immediate and decisive action to investigate and resolve this issue. If a reliable repair cannot be made, I would like to discuss alternative remedies such as vehicle replacement of buyback under applicable warranties and safety protections

The contact owns a 2017 Acura MDX. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the timing chain. The dealer also observed that the timing chain cover was leaking. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); the VIN was included, but the vehicle was already repaired under recall. The manufacturer was not notified of the failure. The failure mileage was 55,553.

Keyless access unit shorted and triggered alarm and drained the battery

The contact owns a 2017 Acura MDX. The contact stated that while driving at an undisclosed speed, the vehicle made an abnormal knocking sound. The contact stated that while driving from a complete stop onto the highway the following day, several unknown warning lights were illuminated, and a message advising to park the vehicle was displayed. The contact stated that while attempting to make a turn to drive back to the residence, the vehicle stalled in the middle of the road. The contact and her children, who were occupying the vehicle, were significantly frightened. The contact was able to restart the vehicle after several attempts; however, the vehicle made an abnormally loud grinding sound. The contact was able to drive back to the residence. The vehicle was towed to the dealer, where it was diagnosed that the engine was damaged due to rod bearing failure. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The contact related the failure to NHTSA Campaign Number: 23V751000 (Engine and Engine Cooling); however, the VIN was not included. The manufacturer was notified of the failure and informed the contact that the vehicle was not covered under warranty or recall. The manufacturer referred the contact to the NHTSA Hotline for assistance in adding the VIN to the recall. The failure mileage was approximately 129,000.

The contact owns a 2017 Acura MDX. The contact stated while driving 30 MPH and depressing the accelerator pedal, the vehicle failed to respond as intended. The contact stated that the failure had occurred on several occasions. There was no warning light illuminated. A dealer was contacted. The vehicle was taken to the dealer to be diagnosed; however, the diagnostic result was not provided. The vehicle was not repaired. The manufacturer was notified of the failure and opened and immediately closed a case for the failure. The approximate failure mileage was 137,000.

only had a car for a year no issues, started hearing a knocking noise two days later in the middle of the intersection the car throws all the lights and refuses to move. The engine gives out we take it to the dealership and they confirm that it is the rod bearing issue which is a known issue with ACURA which is currently on recall. We send the issues to ACURA and they are refusing to advocate for us for the fact that this is a KNOWN RECALL ISSUE but even though our car is not vin specific for the recall this issue that we are having is the same issue as the recall. Like it was stated earlier that there was no issues with the car before the engine blew. This is a safety concern of Acura as to why they placed the recall on these make and models in the first place. We have asked for a goodwill recall adjustment as was denied which is also not fair because again an engine does not just give out like that. We are not being taken care of by our manufacturer for a manufacture defect and we know that there is currently a class action lawsuit with Acura for the same issue we are having and they are refusing to do right by people who are purchasing these cars.