Acura MDX Complaints

3,381 consumer complaints on file.

#11724350March 14, 2026
ENGINE
Engine has 97,000 miles and has been meticulously maintained with current rod bearing failure.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11724349March 14, 2026
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723962March 12, 2026
POWER TRAIN
Catastrophic Power Take-Off Unit (PTU) and Transmission spline failure on a 2022 Acura MDX Type-S vehicle. Had dangerous loss of traction and unexpected handling characteristics with rough shifting, RPM Surges, Sensor problem LOSS OF Power, Delayed shifting with Jerky ride, and a smell of burning oil or rubber, also would move into reverse and the Drive Letter "D" was blinking. The problem was confirmed by Independent service center and it was inspected by the manufacturer. Messages indicating engine/transmission issues appeared on Jan 4, 2026; *Transmission system problem. Paddle shifters not available. See your dealer. *Emissions system problem. Power may be reduced. See your dealer. * Transmission system problem. Avoid heavy acceleration and High speed. See your dealer. * AWD All Wheel Drive system problem. Only the Front wheels may be powered. See your dealer. Notes: (A.) Transmission system errors and infotainment warnings appeared upon concluding a round-trip 3,000+ miles from Southern California to East Texas and back home to Yuma AZ. (B.) After Honda Motor Co gave a 75% Goodwill Offer to replace control box and valves, they indicated that the transmission also need to be replaced. Furthermore, they rescinded the 75% Goodwill coverage which appears to be based solely on the incorrect assumption that third-party transmission repairs were performed and that the transmission was overfilled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723466March 11, 2026
WHEELS
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11723357March 10, 2026
POWER TRAIN
I own a 2022 MDX Type-S. I recently read about complaints about TLX and MDX models losing their AWD system and only resulting to FWD. I was a victim of this in Montana and it was a long fight with Acura / Honda to look at the problem. It was also very dangerous as I worked up in Big Sky and would rely on the AWD system in snowy conditions. This system would always fail. After a long fight, they finally towed my vehicle back to Salt Lake City, where it was purchased from, and replaced a "sensor."
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722941March 9, 2026
FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING, LANE DEPARTURE: BLIND SPOT DETECTION, FORWARD COLLISION AVOIDANCE: WARNINGS
The front camera mounted under the dash stopped working, prompting all of these systems to fail.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722953March 9, 2026
LANE DEPARTURE: WARNING, LANE DEPARTURE: ASSIST, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Constant errors in dash. Cruise control fails while driving. Auto braking no longer works. Warning of other vehicles in blind spots does not work anymore. Many error in dash display regarding the camera and lkas are displayed.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722903March 9, 2026
POWER TRAIN
Starting hearing issues late 24 of MDX and TLX losing all-wheel-drive due to splines stripping between the transmission and transfer case. Had car thoroughly inspected and fluid samples taken in December of 24. In February on 25 with a frame rattling bang as I was pulling out onto a street, rear wheel drive went out at 64k. No warning lights and no indicators, dash showed all 4 tires pulling. Dealership verified system was stripped as rear tires were not turning. Also discovered connection between the two units failed allowing water to get in and wash all grease out around the spines. New transmission is two parts number newer than original and transfer case is one parts number newer than original. Also noted transmission and transfer case take less fluids than original. Car feels a lot tighter and smoother on shifting with new units.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722797March 8, 2026
ELECTRICAL SYSTEM, ENGINE
During the summer of 2025, the auto idle engine railed to restart while at a stop light. We had to shut off and restart the car. We took it to the car dealer and they did some sort of software update. It happened again in January 2026 while at a stop light off a highway exit ramp. We took it to a different dealer because we were living in a different city at the time. In their computer system, they could see the repair that had been done. They did some sort of other update and submitted it as a warranty repair for Acura (which the other dealer had not done). They noted there was one other repair that could be done, but Acura would not allow them to do both at once and this update usually fixed it. However, it happened again in February 2026. The engine did not restart from auto idle, this time at a stop light toward the beginning of an eight hour road trip back home. Fortunately, turning off the engine and starting it back up worked. We took it back to the second dealer and they did the additional repair authorized by Acura and submitted as a warranty repair. Three incidents of the auto-idle not restarting the engine in less than a year is not acceptable. The car is unrealiable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722643March 7, 2026
ELECTRICAL SYSTEM, ENGINE
There are times when my car comes to a stop shuts off ( auto off) then will not turn back on. This has happened numerous times. The dealers states that this a battery problem
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722485March 6, 2026
VISIBILITY
The contact owns a 2024 Acura MDX. The contact stated that while the vehicle was parked, the sunroof glass shattered. No warning lights were illuminated. The vehicle remained at the residence. The vehicle was not yet diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was approximately 42,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722443March 6, 2026
ENGINE, ELECTRICAL SYSTEM
On several occasions, when the vehicle has been driving and comes to a stop in traffic. the auto start stop kills the engine when the brake is fully depressed. When we take our foot off the brake the engine will not start and a notification is shown on the dash. to start the engine push brake and ignition button. When we follow those directions the it does not start the engine. It usually requires us to release brake several times and continue to push start button. This issue has almost caused two accidents because we are stuck and the traffic behind does not see brake lights, because we have to release the brake. This occurred on the interstate in heavy traffic, and was almost struck from behind by a vehicle traveling at interstate speed, because all vehicles went around us and the upcoming vehicle did to see brake lights.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722412March 6, 2026
SERVICE BRAKES
Unable to stop the car. Luckily no accident. Brake pedal was very hard to press and car didn't stop. Brake pedal became normal again in few seconds (5- 7 sec). Inspected car. nothing was stuck under brake pedal.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11722020March 4, 2026
UNKNOWN OR OTHER
When I was at a stop light, the car shut off and went into park. I believe the Idle Stop was off at the time. When I tried to shift to drive it told me I needed to start the car by holding the brake and the button. It took a couple of attempts for it to cycle through and start. This happened several weeks prior to the incident yesterday. It is currently at the dealership. When I googled the issues it said it was a "known issue". It could be dangerous if it shuts off on railroad tracks or in traffic.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721896March 4, 2026
ENGINE
2025 Acura MDX failed to restart after an auto-idle stop at a light in heavy traffic. Second time this has happened and dealer has not resolved
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721708March 3, 2026
ENGINE
I have a 2016 Acura MDX with a 3.5 engine that had a #2 connecting rod failure. I took the information to my local Acura dealer and they had told me that the engine was outside of the recall on the bearing failures on other 3.5 engines. Due to the related failure patterns, I believe that the engine should have been replaced in accordance with the failed engine connecting rod recall 24-001. I had to bear the cost of a used engine to install into the vehicle . I have attached a photo of the failed #2 connecting rod and the engine code.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721774March 3, 2026
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721575March 2, 2026
POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721234March 1, 2026
SERVICE BRAKES, ELECTRICAL SYSTEM
The Electric Parking brake system continuously fails (every 3-4 months)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11721310March 1, 2026
FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL, LANE DEPARTURE: ASSIST, BACK OVER PREVENTION: WARNINGS
Add Auto High Beam problem to the above Adaptive cruise control, lane keeping assist, and collision mitigation. Suddenly got several warning popups and persistent warning lights on related to the identified issues. We just replaced the battery a few months ago, and didn't have any of these problems until this week. Now, it happens every time we start the vehicle. We did the Recall software upgrade. I suspect these problems are related to that software upgrade. Many people online report identical problems without solutions. Please advise RE next steps for how to resolve.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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