We have a 2016 Acura MDX and it has automatically shifted to Neutral 3 times (twice while driving on the freeway and 1x yesterday while driving on the street at normal speeds) in the last 2 months. On the MDX dashboard, it will display "Emissions System Problem" and then display "Stop Driving When Safe. Transmission Problem. See Manual." However, the car will automatically shift to Neutral within seconds. My children's lives (7 y/o and 5 y/o) were placed in danger as a result of this system failure. I have contacted the Acura Honda Recall Specialists and Client Relations Representatives. The car is being diagnosed at Cerritos Acura dealership at the present time. A case number has been filed since our VIN shows no recall, despite it having recalls for other 2016 Acura MDXs.

- Anaheim, CA, USA

Faulty fuel pump

- Woodbridge , VA, USA

See attachment for detailed explanation

- Vancouover, WA, USA

Acura MDX 2016 SH-AWD with 113366 miles diagnosis according to warning lights. DTC test certification codes: P0301 Misfire No. 1 cylinder P0306 Misfire No. 6 cylinder P0300 Random Misfire P0420 Catalyst System efficiency below threshold B1 Recommendation was that the Catalytic converter be replaced. All these codes were identified under Honda's TSB 20-100 dated 2/2021 on Odyssey, Pilot and Ridgeline models where AH extended warranty to 10 years from date of purchase or 150K. These V6 engines are pretty close to that of the 2016 MDX. Is there a remote possibility that these DTC codes could exist in MDX V6 engines when an issue arises similar to those in the Honda vehicles? These DTC codes appeared 24 hours/37 miles after a routine oil service on 3/26/2024 at Advantage Acura of Naperville with a perfect inspection report. The malfunction occurred in the vicinity of McGrath Acura of Westmont on the following day of 3/27/2024. The concern is if any of the emission system components were damaged during the routine oil service. Advantage Acura have in the past installed brake pads backwards on my Acura TL 2010 for which I do have proof.

- Naperville, IL, USA

The auto engine idle stop on my 2016 Acura MDX has left me in precarious situations at stop signs and/or traffic lights at least twice before the recall notification I received in the mail a couple of weeks ago. The engine turned off as designed but then would not turn back on like it should without a delay. The worst incident was when my teenage Daughters were in the car with me! After receiving the recall notice recently and taking the vehicle into the dealership within days of the notification, my -??software update fix-?? by the dealership (Napleton Acura in West Palm Beach) completely disabled my auto engine idle stop! After calling the service rep I dealt with later that day and telling him about it, I was told the software update made the -??turn-off-?? feature more specific and mine didn-??t meet the parameters! My engine was at normal operating temperature, my air conditioner was NOT on and I stopped at at least 12 lights on the way home with no engine stop. That was a week ago and still no engine idle stop has taken place! I-??m a pilot and don-??t appreciate being talked down to by a supposed -??racing champion-?? named Zeke that feels the need to advertise his prior win on his service uniform! Not only that, but now my safety related -??object approaching-?? notification for front driving and -??rear warning-?? for close objects during parking/reversing are now non-existent! I paid extra for these safety related options and I-??m not happy that they-??ve been disabled because of the -??software update!-?? How do I become part of the class action lawsuit against Acura/Honda?

- West Palm Beach , FL, USA

On a multi-day road trip, the car had a temporary complete loss of power on two separate days. Both times this happened after several hours of driving at highway speeds on I-15 in California, outside temperatures were in the 90s. After a slight deceleration and then applying the accelerator again, there was a 'clunk' like sound possibly from the transmission, and then a complete loss of power. The first time I tried to pull over to the breakdown lane, and then regained power after about 2-3 seconds. The second time, we were in the middle of traffic and were not able to pull over, but again after 2-3 seconds, the power came back. The engine did not rev up when applying the accelerator and there were no dashboard lights. This appeared to be either a transmission, fuel delivery, or engine management/drive by wire issue. While we luckily did not get into an accident, we did slow down significantly on the highway, requiring other drivers around us to break, or change lanes. I have made an appointment with my independent mechanic, but the car has not been inspected yet and I am not able to forcibly reproduce the issue.

- Louisville, CO, USA

My mechanic replaced the battery on May 9th and could smell gas but I had just fueled the vehicle. Two days later is when it got worse while driving back home I pulled over and could smell gasoline inside the vehicle as if an open gas can was sitting in the passenger seat. I stopped using the vehicle and took it to my mechanic and he discovered a crack in the weld on the front fuel rail. This could have harmed my family, pets or myself if it had caught on fire. In 1 hour I used a quarter tank of gas because of the high pressure pushing the gas on to the engine. Vehicle taken to Anchorage Acura and the Acura mechanic confirmed what my mechanic found. There were no warning lights or indications of anything wrong until I could smell the gas.

- Homer, AK, USA

Stalling when accelerating. Safety hazard because the car basically dies temporarily and slows down. I have to pump the gas pedal for several seconds to get it going again.

- Norris, TN, USA

Engine light on stating: Lean code, all wheel drive systems problem, emmision system problem. The vehicle was moving when it came on.

- Woodbridge, VA, USA

While driving on local road all of a sudden the 3 errors came on the dash board transmission system problem, emission system problem, and blind spot system problem, engine light came on. When this happens the transmission doesn't shift right and grinding of the gear is heard, car quickly slow down. After stopping and start up again, errors still there but transmission could not shift into higher gears and car tops out at 30mph. This has happened 4 times in the last few days and we are now scared to drive the car local roads, highway would be bad until we get it fixed at the dealership. This is potentially a very dangerous situation if the car loses power at an intersection.

- Buford, GA, USA

Purchased a certified pre-owned 2016 Acura MDX sh-AWD w/ tech a few weeks ago & from day one there have been issues with acceleration off a complete stop like a stop sign, stop light, coming off park or upon putting it into drive. The vehicle will not move when the gas pedal is depressed, will rev high through first, jump into 2 still revving high before finally moving when it hits 3rd. It is a huge safety issue when other traffic is oncoming as you are expecting to "go" & nothing happens when pressing the gas pedal. The dealership inspected the vehicle upon purchase at our request on two occasions but told us it is normal & will adjust to my driving style. This is not normal.they said they updated the software but found nothing wrong with the vehicle. I'm feeling like we paid for a lemon & driving something which is very unsafe especially with children in the car.

- Mahtomedi, MN, USA

In the last 6 months, my SUV has stalled either at a stop light or when parked. It would sputter on trying to restart. Battery was not an issue. Thought it was a starter issue and got a new starter. But it happened again today and the tow truck guy powered with jump start (even though it was not a battery issue) and it started.

- Saratoga, CA, USA

Car began to stall while driving. Would not accelerate while pressing gas pedal and suddenly turned off. Tried to turn it back on. Which it did turn on but it did so with a lot of effort from the car. Engine light has now came on along with 3 more lights.

- Los Angeles, CA, USA

The contact owns a 2016 Acura MDX. The contact stated while driving 20 mph, when driving over a speed bump the vehicle accelerated independently and impacted the vehicle in front. The contact stated no warning light was illuminated. Air bags did not deploy. The contact stated she was not injured. The contact stated the driver of the other vehicle sustained unknown injuries but was not aware if medical attention was required. A police report was filed. The vehicle was not drivable and was towed to an independent collision center. The vehicle failure was not diagnosed by an independent mechanic or dealer. The contact also mentioned after the accident the vehicle was serviced under NHTSA campaign number: 19V060000 (fuel system, other) at norris Acura (8559 baltimore national pike, ellicott city, md 21043) on 10/11/2019. The contact stated after the recall remedy the vehicle had a fuel leak. The dealer was contacted, however stated she would be reasonable for diagnoses and repairs fees. The manufacturer had not been informed of the failure. The failure mileage was approximately 64,053.

- Severn, MD, USA

The contact owns a 2016 Acura MDX. The contact received notification of NHTSA campaign number: 19V060000 (fuel system, other). The contact stated that the check engine indicator illuminated. The vehicle was serviced at dallas Acura (4801 lemmon ave, dallas, tx 75219, (214) 692-2872), but the remedy failed to repair the vehicle. The contact mentioned that the check engine indicator remained illuminated after the recall repair. The manufacturer was not made aware of the failure. The failure mileage was 50,000.

- Irving, TX, USA

My 2016 Acura MDX. Stalled twice. Both times in start and stop traffic when stopped the cylinder deactivation engaged, however then the power went out completely without warning, it took about 5-10 min then the push to start worked and the car restarted. After the first stall we took it Acura, however they said there was nothing wrong. I am writing this report after the second stall today.

- Daly City, CA, USA

2016-2018: Noticed car occasionally hesitant like not 'getting' into gear but no stalling. Wife driving car and stalls while stopped at a light. Simply restarts car with no issue. February 2019: Wife driving car and stalls but when restarted, all lights in dash are on and car will only move forward at idle speed and throttle completely not responsive (e.g., can press gas pedal to floor with no acceleration). Regal Acura (2615 lakeland hills blvd bldg 2, lakeland, fl 33805, (863) 262-4238)) visit 1 (March 2019): Matthew in service. Regal service does full check and reports 'nothing wrong.' March 2019: Vehicle continues with hesitancy and stalls. Regal Acura visit 2 (March 2019): Bring back to matthew and they repeat check and finding nothing wrong. I insist on fuel line flush which I pay for. April 2019: Vehicle continues with hesitancy and stalls. I call matthew in regal Acura service and let him know that there is a recall (P3W MDX) on this issue. Regal Acura performs software update. Vehicle continues to exhibit hesitancy while driving. April 2019: I receive letter from Acura automobile division outlining the recall: 1.safety consequence per recall: 'reduced fuel flow to the engine combined with vehicle operation in high temperature conditions can restrict vehicle acceleration and/or cause an engine stall, which increases risk of crash.' 2.what will Acura do? 'the dealer will update the software for the engine control unit'. if the diagnostic scan confirms a previous occurrence of engine stalling, the fuel pump will be replaced for free.' I have had multiple calls with regal Acura and Acura national and they will not replace fuel pump nor will they let me purchase a new fuel pump because there are none available due to the recall!!! I feel this car is unsafe to drive with current fuel pump as outlined in the attached recall letter.

- Lakeland, FL, USA

The vehicle shifted to neutral while driving at 70 mph and the dash started showing transmission and fuel system errors. The vehicle would not shift back to drive mode. After pulling over to the shoulder and turning the vehicle off and on the vehicle could not be put in drive. After about 30 minutes of repeatedly turning off and on the vehicle shifted to drive and was drive able. This could have lead to an accident if there were vehicles behind me.

- Rockville, MD, USA

The contact owns a 2016 Acura MDX. While driving 72 mph with the cruise control activated, the vehicle lurched twice and all the warning indicators illuminated, displaying transmission system failure, fuel emission failure, and lane departure failure. The vehicle stalled and was coasted to the side of the road. The contact attempted to restart the vehicle, but was unsuccessful. The vehicle was towed to an Acura dealer (Acura of jackson, 828 adcock St, ridgeland, ms 39157) where it was determined that there was a computer glitch. The computer system was reset. The dealer stated that this was a known failure with Acura and no permanent remedy was unavailable. The dealer also stated that the failure could recur in 10 to 10,000 miles. The contact was concerned that the failure would recur and took the vehicle to david mcdavid Acura of austin (13553 research blvd, austin, tx 78750). The contact informed the dealer that she felt unsafe driving the vehicle and wanted to trade it in for another vehicle. The manufacturer was notified and advised the dealer to attempt to duplicate the failure. The vehicle was currently at the dealer awaiting a new diagnosis and possible repairs. The failure mileage was unknown.

- College Station, TX, USA

Un intended non acceleration. Due to severe lag, delay, and sluggish transmission response. Acura has replaced my transmission under warranty at 11,000 miles and did not admit fault and say there was a problem. Here's more on my experience..in my 1 year of ownership.. to whom it may concern: 2016 Acura MDX 13,000 miles, purchase new from Sierra Acura, alhambra, ca I am writing to request buy back of my vehicle this car is a lemon. Since taking ownership a year ago, my 2016 MDX purchased new has experienced nothing but one problem after problem. Acura replaced transmission a month ago but the problem is still there. Is it engineered and designed to perform in a not safe manner " many times I experience shifting and accelerating hesitation and jerky/jolting. My family and I do not feel safe operating and riding in this vehicle. Several times gas pedal depressed and vehicle lagged at 20 mph for more than 10 seconds before accelerating. A few of the latest new and ongoing problems are below. Driver door now appears off set and at different angle protruding out now. Appears that the door is not closing properly and therefore not sealed at closing. Furthermore every single window has experienced faulty mechanisms with motors, actuators, and seals. When closing the doors it feels like the windows are loose. There are also squeaks and rattles eminating throughout the cabin area. I secured and collected all loose items and the sound is still there. At engine start up each time, there is a high pitch whining noise for a few seconds before engine starts (perhaps something else faulty") I have video / sound documentation of this with 2 seperate recording dates. With regard to the navigation, multimedia unit, it has been lagging, slow (er) to function, and severe delay in backup camera actuating, and audio functions delay in response sometimes.

- Arcadia, CA, USA