Acura MDX Complaints

3,381 consumer complaints on file.

#11762849September 8, 2026
POWER TRAIN
Heard a loud clunk followed by several small clunks when accelerating. Dealer confirmed the transmission & PTU are damaged and the car is no longer AWD. This issue is becoming more widespread with Acura MDXs and is a very expensive repair. From dealer: “FOUND DRIVESHAFT CAN TURN IN PARK WITHOUT TURNING FRONT WHEELS. THIS INDICATED TRANSMISSION AND PTU SPLINES ARE DAMAGED”
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762641September 7, 2026
ENGINE
"My 2016 Acura MDX completely seized on the highway after a loud knocking sound, which perfectly matches the connecting rod bearing failure under Recall 23V-751. Even if my specific VIN isn't showing up as open on the website, I know the NHTSA has a major open investigation into 1.4 million of these V6 engines because hundreds of vehicles are failing exactly like mine outside the original recall scope. I need Acura to open a corporate goodwill case to inspect my engine and cover this repair."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762463September 6, 2026
LANE DEPARTURE: BLIND SPOT DETECTION
Blind spot warning system stops working when the it is hot outside or inside of the vehicle
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762319September 5, 2026
ENGINE
Engine seized multiple times. Completely broken now. Online it says many people have these problems.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762341September 5, 2026
ENGINE
"Vehicle experienced a sudden flashing check engine light pulled over checked oil restarted car flashing check engine light went away then started flashing again a few miles down the road (Cylinder 3 misfire) accompanied by severe engine knocking. The engine locked up/seized while hot. car was stuck on the road and was unable to shift to neutral. After cooling down, the engine restarted but produces a heavy metallic scraping and loud squealing noise from internal friction. This matches the exact failure mechanism of connecting rod bearing failure under investigation PE25008, but Honda/Acura has excluded this VIN from active recalls. I was forced to pay $389 out-of-pocket for an emergency tow."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762126September 4, 2026
STRUCTURE, SUSPENSION
The contact owns a 2016 Acura MDX. The contact received notification of NHTSA Campaign Number: 26V365000 (Structure, Suspension) and would like to be removed from the recall distribution list. The vehicle was taken to a local authorized dealer, and recall repairs were performed. The vehicle was repaired. The manufacturer was made aware of the issue. The contact had not experienced a failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762152September 4, 2026
ENGINE
My 2020 Acura MDX has experienced repeated Auto Idle Stop system malfunctions. When the system activates at a stop, the engine shuts off and does not return to normal operation as expected. The incidents are becoming more frequent and create a safety concern when the vehicle is stopped in traffic. This problem has been reported by telephone on multiple prior occasions. The 12-volt battery has also been replaced multiple times because we believed the battery was causing the problem, but the condition has continued.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762170September 4, 2026
FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
Was exiting I275 onto Westbound Route 32 when the brakes were unexpectedly applied by the vehicle’s safety system. No vehicles were in front or beside me. Very alarming when it happened. This also happed two other times at slower speeds.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762274September 4, 2026
ENGINE
I was driving w a passenger on a busy 4 lane road and trying to make a left turn. When I tried to hit the gas after coming to a stop, my car would not move. I did not know what was happening, as it turned out the car had shifted into park and turned off. Extremely dangerous scenario. I had to take my foot off the brake, restart the the car and put it in drive again to move. I brought it to the dealer the following day, they said they fixed it with a gear shield as the trans had dirt in it and a new starter. However, yesterday, prob about 6 or so months later it happened again. I went directly to the dealer. They kept the car over night. Today I was told the my battery charge was too low and the auto idle engine on/off turned off due to it being not having enough charge. Totally different excuse than the first time. Also, when I dropped it off I was told someone else had dropped their 2025 MDX off that same day for the same reason. I am very concerned, worried and nervous when I drive it. It helps if I turn the auto on/off idle stop off, but I must do that every time I start the car as it resets each time the car is turned off. Obviously I forget sometimes. It is a major concern that I feel the dealership is not taking seriously or showing much concern for my safety. Thank you for your help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761810September 3, 2026
ENGINE
I have a 2025 Acura MDX SH-AWD. Several times while stopped in traffic, the Auto Idle Stop system shut the engine off and the vehicle displayed ‘RESTART ENGINE.’ The vehicle did not restart automatically. I'm concerned that this could cause a safety hazard if it happens in traffic. I want to file a safety complaint.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761883September 3, 2026
ELECTRICAL SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
The contact owns a 2024 Acura MDX. The contact stated that while driving approximately 20 MPH and driving over construction steel plates on the roadway, the brakes independently engaged while the accelerator pedal was depressed. The contact stated that the failure could have caused a rear-end crash while driving at faster speeds with other vehicles nearby and posed a risk to her 1-year-old child seated the car seat in the second-row rear seats. The BRAKE warning light was illuminated. The manufacturer was made aware of the failure by telephone. The failure mileage was approximately 21,642.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11762003September 3, 2026
POWER TRAIN
The car was being driven as normal and while at a stop light the car shut off and alerted the driver with a transmission error code. The car would not start for about 30 mins after the incident. When we took it to be looked at by the dealership we were told that it was related to code P07E4. The dealership reset the system and the code and returned the car back to me. They stated that if this happened again they would need to replace the transmission. My concern is that this happens again while driving at a higher speed or in an area where it is not safe such as a highway or major intersection or road. It's also concerning that a major component of a vehicle would need replacement at normal mileage which is currently at 111,400 miles.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761535September 2, 2026
POWER TRAIN
Lost all wheel drive rear wheels not turning front wheel drive only. Out of warranty
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761234September 1, 2026
ELECTRICAL SYSTEM, ENGINE
When at a red light the engine cuts off and does not restart when foot comes off the brake. Sometimes it takes several minutes to start. We were stuck in an intersection and almost were rear ended. Took it ti the dealership. had a new battery up in. By the time we got home, it did it again. Took it back to the dealership, they replaced the started. No problems for 4 months. Now it is doing the same thing again, along with the air conditioner not cooling. The first time we took it in for oil change we told them it was not cooling and were told there was nothing wrong with it. Took it back this weekend and found out there is a compressor issue. The compressors are not available for repair. Other minor issues are codes are randomly appearing on the gauges and the screen blacks out.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761364September 1, 2026
SEATS
driver seat rocking. Acura stated 2018 recall for this issue was vin number specific and does not include my vehicle however this is the issue with my driver seat. they advise repairs at my expense.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11761409September 1, 2026
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
Moisture accumulating within the driver side headlight is limiting illumination and safe night driving. Photos compare driver side to passenger side.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760987August 31, 2026
POWER TRAIN
While driving home on a Sunday afternoon, out of nowhere, a very loud pop sound happened followed by grinding. We were so worried that my husband pulled over thinking we had done major damage to the car somehow. Visual inspection under the car yielded nothing leaving us puzzled. No warning lights came on before, during, or after. We had it taken to the Acura dealership in Fairfield, Ohio. The car was still within warranty at this time, and they found nothing nor could they replicate the sound. My husband explained that it sounded to be transmission related. They chalked it up to a loose tie rod end which they “tightened” to solve all of our problems. We left the dealership and took the car home experiencing no further problems. Fast forward to the winter of that same year we realized that no matter what mode we put the car in we didn’t have AWD. Still no warning lights. The following spring, approximately 20,000 miles after experiencing the first loud pop and grind, we started getting error messages on our user dashboard. “All wheel drive system problem. Only front wheels may be powered. See your dealer”. We immediately scheduled a service appointment with the same Acura dealership. Within minutes of having the car examined on the lift the Acura certified technician found the problem to be the AWD transfer case and additionally the transmission. Stating we would need to replace both. They came back with a quote of approximately $18,000 for a new transmission, transfer case, labor, and all associated materials, for which we declined. Currently seeking help for recall as we do not believe a transmission/ transfer case should fail so quickly under normal driving circumstances.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760772August 30, 2026
ELECTRICAL SYSTEM, POWER TRAIN
The auto shutoff and restart system has failed multiple times causing the car to shutoff in the middle of traffic. This has happened in traffic on the interstate, on surface streets and in the drive thru line. Safety was put at risk as had to restart car in middle of traffic multiple times; once car would not restart at stop light. This could have caused an accident as vehicle was at a full stop with cars coming up from behind in the road. Dealer has replaced starter and relay twice. In less than 2 years, I'm on my third starter. Dealer has inspected vehicle multiple times. No warning messages or other symptoms before occurring. When the engine would not restart at intersection, warning message of "transmission system problem, apply parking brake when parked. See your dealer" Could not restart engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760810August 30, 2026
POWER TRAIN
Factory seal allows water to seep into the internal coupling cavity. The water mixes with the factory grease, creating a rusty, muddy brown fluid that eventually washed out and leaks from the casing. Over time, this moisture causes the interfacing splines between the transmission and the transfer case to strip and shear off completely.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11760682August 29, 2026
UNKNOWN OR OTHER
My 2025 Acura MDX has 21,000+ miles on it and the START STOP SYSTEM has stalled and failed to restart the engine at RED LIGHTS several times. This is a SERIOUS SAFETY CONCERN! Does Honda/Acura have a Technical Service Bulletin for this issue? Reading many other complaints on social media many people are looking for ways to electrically circumvent the Start Stop System but that voids the manufactuers warranty. I need help solving this problem through HONDA/ACURA the right way. Please help?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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