2023 Acura MDX: sudden loss of power

Filed Oct 12, 2026 · Transmission · TX

My vehicle developed a leak at the seal between the transfer case and transmission. I was informed that, due to the original design, this seal cannot be replaced independently. The leak can result in the loss of gear oil and transmission fluid, further transmission damage, and a loss of power to the rear wheels. Repairs involve significant expense, including replacement of damaged components, seals, and both fluids. There were no apparent warning signs other than oil puddles beneath the vehicle. Two extended warranty companies inspected the vehicle and denied coverage, stating that the manufacturer should be responsible for addressing the issue. The vehicle was taken to John Eagle Acura in Houston, Texas, for repairs involving replacement of the transmission and transfer case, along with all associated fluids and seals. I understand that this dealership has repaired other vehicles with the same issue and that similar cases have been reported nationwide. I am concerned that this may be a recurring design-related problem with potential safety implications, particularly because of the possible loss of power to the rear wheels without adequate warning. I request that the manufacturer investigate this issue, review these reported failures, and take responsibility for the necessary repairs.

Filed Apr 10, 2026 · Transmission · GA

What component or system failed or malfunctioned, and is it available for inspection upon request? Transfer case and yes, it is attached the vehicle. How was your safety or the safety of others put at risk? At this time there is a leak and the power is being redistributed which could lead to loss of power at any times. Has the problem been reproduced or confirmed by a dealer or independent service center? Yea both. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Manufacturer. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No. During a routine transmission service this was noticed that there was a leak, they did not fill the fluid in the vehicle up to monitor fluid levels.

Filed Sep 8, 2025 · Brakes, Electrical · GA

LOSS OF POWER STEERING AND BRAKING ASSIST REDUCED. My spouse was driving our 2023 MDX approximately 45mph when she ran over a recessed manhole cover which created a bump. The MDX lossed power steering and brake performance reduced. The vehicle was very difficult to turn at that point. The car began to cycle through errors that would not clear until the car's engine could be stopped and restarted: HILL START ASSIST PROBLEM, TRAILER STABILITY ASSIST PROBLEM, ADAPTIVE CRUISE CONTROL PROBLEM, LANE KEEPING ASSIST PROBLEM, COLLISION MITIGATION BRAKING SYSTEM PROBLEM, ROAD DEPARTURE MITIGATION SYSTEM PROBLEM, LOW SPEED BRAKING SYSTEM PROBLEM, ELECTRICAL POWER STEERING SYSTEM PROBLEM STEERING ASSIST IS NOT AVAILABLE DO NOT DRIVE, AWD SYSTEM PROBLEM FRONT WHEELS MAY ONLY BE POWERED, BRAKE SYSTEM PROBLEM BRAKE PERFORMANCE MAY BE REDUCED. All these errors said SEE YOUR DEALER. We took the vehicle in to our local Acura dealer's service department 2 times over the course of 3 days. Both times diagnostics were ran and the car was deemed without problem. The MDX's alignment was ok as well, so the impact of the road hazard was NOT severe.

Filed Aug 7, 2025 · Driver assistance, Engine · IL

My 2023 Acura (VIN# [XXX] ) has experienced two separate incidents of sudden, total power loss while driving. In both cases, all dashboard warning lights came on, including the brake light, and the vehicle reduced speed to 20 mph and would not accelerate. The first incident occurred while I was driving on a 55 mph expressway, creating a major safety hazard. I had to maneuver to safety in high-speed traffic. The second incident occurred under similar conditions. The dealer has been unable to resolve the issue. I am filing this report to document the safety risk for investigation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 25, 2025 · TX

Multiple system warnings lights on dash appear indicating multiple systems issues including possible loss of power. See video First occurrence- August 2024 - Dealer said it was due to software that needed to be updated. The repair was completed. Second occurrence - May 2025 - dealer has car for over a week and is unable to find the problem. No codes were stored so they say they can repair it. Honda says it’s the dealers problem I have the last occurrence on cell video but I’m unable how to upload as it’s not jpeg

Filed Jan 3, 2025 · Transmission · 65,183 miles · WI

The automatic transmission on the vehicle failed without warning. Vehicle was driven on the highway without issues; exited highway to a city street, stopped at a stop light, and turned onto another street. Upon turn onto another street, transmission did not upshift as it should; it was noticed the engine was revving high, but transmission did not shift. Tried to manually shift, with no luck. There were no warning lights or messages present at any time. Vehicle was stopped in a safe area and turned off, restarted, and tried again. Transmission still would not shift correctly; when it tried to shift, it would clunk, and it sounded like something dragging under the vehicle. Drove vehicle home and parked it. Later when transmission was shifted into gear, it did not move, and made a terrible clunking noise, then a squealing sound. Called dealer and had vehicle towed in for inspection. After inspection, manufacturer replaced failed transmission under warranty. Per dealer rep, transmission failed, and registered two internal codes, one for incorrect gear ratio, and other for torque converter issue. While the codes registered internal, unfortunately there were no warnings issued to driver. Safety was put at risk because if the failure happened while on the highway three miles earlier, there was no warning to driver who was driving in heavy traffic, and they may have been involved in an accident. The only reason the driver was aware of the issue was because they could hear the engine revving high, and they pulled over to inspect. A less experienced driver may not notice the same issues. Additionally, it's concerning that transmission codes were stored internally but did not trip any transmission issues or loss of power warning; this could prevent drivers from noticing issues prior to failure. Lastly, the vehicle health report we received from Acura on 12/31 (and states as of 12/12, day after failure), stated there are no transmission issues present.