The contact owns a 2016 Acura MDX. The contact stated that while attempting to accelerate from a stop, the vehicle hesitated and then accelerated. There were no warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted but provided no additional assistance. The approximate failure mileage was 75,000.

- Hampton, VA, USA

Transmission shifted to neutral limiting controllable forward movement. This occurred without any warning while in traffic. This created a VERY HIGH SAFETY RISK. This issue occurred three times creating a need to have it towed into a repair dealer, diagnostics, and resetting of the electrical circuit. The diagnosis code was P0973.

- Overland Park, KS, 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

Transmission issues with my 2016 Acura MDX slipping into neutral and staying there while driving at high speeds on interstates. This could've caused injury to myself, my passengers, and other drivers on the road due to the high speeds. Without being to able to accelerate when needed, it could've resulted in harm. Transmission Service Problem and Blind Spot Malfunction lights appeared. I took the vehicle to Acura for service 3 weeks before the last incident and Acura said there was no problem and to bring it back if it happened again. 3 weeks later, it happened again. I had reported slippages in the transmission for several service checks with no issues found by Acura. After the most recent incident, Acura recommended to either keep driving and bring it back or replace the transmission. Diagnostics were run and error codes cleared. The CSR at Acura mentioned he saw this on at least 5 Acura 2016 MDXs this year already. The warning lights did not appear until the last issue. Several other incidents occurred with no warnings. All transmission maintenance activities have been performed.

- Warrenton, VA, USA

I have had the vehicle since beginning of March and I noticed the transmission slipping. I had the transmission flushed which made the problem not as bad but it was still there. A couple weeks later the transmission started slipping hard again and I had the transmission replaced by the dealer. I take it home and its shifting all over the place and not accelerating. Acura did a reprogram and I picked it up and the minute I left the dealer, it started to do a hard shift/slip between 4th and 5th gear that is not going away after a new transmission was put in. I'm not getting any warnings or lights, just the hard shifting that has caused me to return to the dealer on 3 separate occasions and now will be a 4th time. This can be dangerous because I do not know what the car will do at any given moment while I am driving.

- Sanford, FL, USA

My SUV would accelerate when going down hill and the message: -€œtransmission system problem-€along with -€œblind spot warning malfunction-€ would come on. Took to dealer the message went out. Will come on intermittently. This has gone on For past month. They sai it had to stay on for them to diagnose. Now car will not go in reverse at all. This transmission was replaced November 2019 because of a defect. They told me there is no recall but the other was a service bulletin that required my engine to be replaced as well. If there is a class action I want to be added as this is a big inconvenience and the company is denying there is an issue with the transmission computer system so they can get us to pay high repair fees. Please help!

- Baltimore , MD, USA

The contact's wife owns a 2016 Acura MDX. The contact stated that while his wife was reversing out of the driveway with his grandchildren in the rear seats, she stopped the vehicle to check for incoming traffic but the vehicle switched gears to drive on its own and accelerated forward. The contact's wife depressed the brake pedal but it failed to respond and the vehicle crashed into his unoccupied vehicle that was parked ahead in the driveway. The driver's airbags deployed. There were no warning lights illuminated. The contact's wife parked the vehicle. There were no injuries sustained. A police report was not filed. The contact stated that his wife switched gears to reverse and attempted to reverse the vehicle. The vehicle only reversed for 2 feet and switched gears back to park. The contact stated that the vehicle continuously switched gears to park whenever they attempted to reverse. The dealer and the manufacturer were not notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was approximately 37,592.

- Columbus, OH, USA

I believe my transmission or the electrical component(s) to my transmission failed. I was driving down the road and all of a sudden my car shifted into neutral and would not allow me to accelerate so we had make our way to the shoulder to put the car in park. Having my vehicle thrown into neutral while driving and not being able to accelerate put not only us, but other drivers at serious risk! There were several warning messages popping up on our screen (see attached photos). In researching this issue, I found that there had been several TSBs and a class action lawsuit claiming the same issue faced by many drivers. It is currently at the Acura dealership getting serviced and they will be replacing the entire transmission and TCM harness under the CPO warranty. I cannot believe there has not been a recall on this potentially life-threatening issue.

- Youngsville, LA, USA

Every since I've owned my 2016 Acura MDX I've had infrequent, and intermittent transmission issues. Several have been safety concerns: - Transmission is slow to engage when first pushing accelerator, leading to unexpected lag pulling into traffic - Transmission did not shift into park as expected, causing car to keep moving as I was opening door and starting to step out - Transmission slips and does not respond when accelerating to merge into fast lane on highway to pass slower traffic. Car speed stalls and you have to let off the gas and wait for a few seconds before the transmission reengages. - Overall horrible/hard shifting all the time... to which we're told... the car learns your driving style. We've reset it multiple times to try to get it to start learning again. No luck. - After coasting on highway, very hard shift with loud noise when you go to hit the accelerator All of these situations have happened numerous times over the past 2 years of owning this car. All of them infrequent, but also unexpected... leaving you to really worry if this is the time the transmission is going to let you down and cause you to wreck. Dealer now says a new transmission is needed, but I waited until 78,000 miles to first report it, so it's out of warranty now. Hoping Acura will step up and address this serious safety issue with the 9 speed transmission.

- Waxhaw, NC, USA

The contact owns a 2016 Acura MDX. The contact stated while driving at various speeds, the vehicle would stall. The contact also stated that the vehicle would jerk when the accelerator pedal was depressed. The contact stated the information and engine warning lights were illuminated on the control panel. The vehicle was taken to a local dealer where it was diagnosed with the transmission needing to be updated. The vehicle was repaired but the failure still occurred. The contact was relating the failure to NHTSA campaign number: 19V060000 (Fuel System, Other). The manufacturer had been informed of the failure and the contact filed a claim. The failure mileage was approximately 41,000.

- Baton Rouge, LA, USA

For at least the past four years, my MDX has been "catching" while accelerating and lurching at other times. If I have to step on it to get through traffic or want to pass and I accelerate, the car will jerk. This is most noticeable at 40 mph because that's the speed I'm driving at most often. It also happens at higher speeds when on the interstate. I have taken it in to the dealer numerous times, but they just keep telling me there is nothing they can do about it and they blow me off.

- The Hills, TX, USA

While driving with adaptive cruse control on, I was approaching slower vehicle. I wanted to go around it without breaking. While driving already on high speed (70M/H) I press acceleration pedal so I can safely go around slower vehicle. I was half way into passing line (last left line), there was a car already behind me approaching with higher speed, when I suddenly completely lost power and lots of lights illuminated on the dash. Car behind me notice that I start loosing speed rapidly so he start braking that I could hear his tires. I didnt know what to do so I just kept going to emergency stopping line where I almost crash into the concrete divider. I manage to stop vehicle safely by pure luck. After stopping I notice that car is not shifting, and sh-AWD system, blind spot ass, emission system and transmission system fault lights came on. I called insurance agent to send road side assistance, but while waiting on the call I start the car again (like 15min after this incident) and all lights were still on except transmission. I tried car and it was shifting normally now, except sh-AWD was not working (I didnt have power to the rear differential). This could be very tragic event if both me and the driver behind me didnt react properly. I had two more passengers in the car, from which one was 15 months old child. I was reading that this could be transmission system update issue, but my dealer did update transmission already.

- Gaithersburg, MD, 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

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

Uncontrollable acceleration, surging and bucking during braking or decreasing speed the vehicle hesitates to stop in all gears - uncontrollably dangerous acceleration also stresses additional vehicle functions - tires and brakes - suspension (inertia that causes imbalance) - steering - vehicle steering is now somewhat unbinding and veers right or left when attempts to control anomalous accelerations while braking or slowing the vehicle poor acceleration at lower city speeds and remains in erratic gears for unspecified times this is most dangerous when driving in rougher traffic and especially when there are additional demands to drive at elevating speeds transmission disengages briefly at higher speeds recently, as the vehicle increases velocity and consistency, the drive gear disengages to neutral for a few milliseconds and changes back to the drive gear and regains momentum transmission is noisy 1. thuds and clicks while shift at various times 2. 'cricket sounds' gurgling, creaks, grinds and mild knocking is present when idling and engaging after vehicle startup E. manual transmission functions 1. vehicle continues to move once parking gear is engaged and foot brake is released 2. once vehicle starts, reverse and drive gear is "sticky' and makes noise (thud) when engaged

- Springfield, OH, USA

ZF9 transmission went out at about 10,000 miles with metal particles found in atf fluid. Replaced by Acura with a new transmission apparatus. Apparently this is a rampant and dangerous problem with this model year transmission. Now at 38,000 miles (28,000 miles on the new transmission) this one is failing, slipping on shifts and making a squeaking/chirping noise between gears. Can result in failure to engage/accelerate in an emergency situation. Acura people won't take it seriously so NHTSA should get involved. A quick survey will demonstrate this is a common problem in this car. Acura has a tsb but this should be a recall item. They're trying to get beyond everyone's 6 year powertrain warranty without having to take action.

- Mount Pleasant, SC, USA

- vehicle lost power the other day had to pull over luckily was still in residential corridor at 35mph with no other vehicles around. Transmission problems include: Erratic shifting, sensation of acceleration when coasting down hills, surging when braking, transmission feels like it stays in various gears too long. During slight acceleration from a stop, experience both hesitation and surges and transmission feels rough at low speeds. Also experience poor acceleration and bogging at low speeds. Erratic shifting and speed changes occurring daily.

- Rancho Cordova, CA, USA

The contact owns a 2016 Acura MDX. The contact stated that while driving at 75 mph, the vehicle independently shifted into neutral. The failure recurred several times and the contact was unable to shift the vehicle back into drive. The contact pulled over and restarted the vehicle and the vehicle operated as intended. The contact stated that the power train control module software was previously updated at rosenthal Acura (623 frederick avenue, gaithersburg, md 20879, (877)300-4226) however, failed to prevent the failure. The vehicle was taken back to the same dealer to be inspected. The contact referenced manufacturer communication numbers: 15-034 nad 19-003 as possible fixes for the failure. The manufacturer was made aware of the failure. The vehicle was not repaired. The failure mileage was 39,000.

- Clarskburg, MD, USA

Vehicle stalls at highway speeds. No software update by Acura has fixed the issue. There are several lawsuits against Acura for the same but they deny any responsibility. Google Acura MDX transmission class action lawsuit.

- Clarksburg, MD, USA