Powertrain (other)
Filed Jul 17, 2026
Transfer case failure, leakage, discovered after warranty expired. Took vehicle in describing seeming loss of AWD and tech informed me it was “normal” I Later discovered, during an oil change, a leak From the transmission or transfer case that covered the lower skid plate, which looking up, was directly related to a known failure of the Type S’s transfer case/Transmission causing a loss of traction to the rear wheels.
- NHTSA ID
- 11750976
- Incident
- Apr 6, 2026
Powertrain (other)
Filed Jul 15, 2026
The transfer case splines sheared off in the transmission. The car is safe to drive but went from AWD to FWD as there is now no power being transmitted through the transfer case to the rear wheels. The dealership confirmed the issue was the transfer case by lifting the car and seeing if the rear wheels were getting power. They then tore down the transmission and found the splines were all gone from the transfer case. The component was not inspected by the manufacturer, police, insurance, or anyone else. There were no warnings or symptoms to the problem before the failure.
- NHTSA ID
- 11750498
- Incident
- Jul 14, 2026
Powertrain (other)
Filed Jun 26, 2026
Went to the Acura dealer for an oil change. Was told I have a leak in the transmission and transfer case and that both will need to be replaced.
- NHTSA ID
- 11746693
- Incident
- Jun 26, 2026
Powertrain (other)
Filed Jun 9, 2026
The transfer case spines have stripped and I no longer have all wheel drive only front wheel drive. This is a huge safety hazard for me .
- NHTSA ID
- 11742990
- Incident
- May 20, 2026
Powertrain (other)
Filed Apr 26, 2026
Accelerated and heard a loud noise and felt like I had driven through wood and one got stocked to the whelle. There was a lot of traffic so I was driving slow. The noice I heard was like something was stuck inside the wheel, like it was grinding. Dealer diagnosed a bad transfer case and transmission and they replaced both under warranty.
- NHTSA ID
- 11733872
- Incident
- Mar 9, 2026
Powertrain (other)
Filed Apr 25, 2026
Was changing the oil on my car and noticed grease running out from between the transfer case and transmission and also fluid build up on the transfer case higher up a little below the driveshaft. The car has 41k miles on it, there should be no leaks. My concern is the transfer case/transmission spline failure issue.
- NHTSA ID
- 11733815
- Incident
- Apr 20, 2026
Powertrain (other)
Filed Mar 12, 2026
My vehicle has less then 35000 miles, I was doing a oil change when I noticed that my transfer cases has a slight oil residue from the bottom, which I suppose it’s just gonna get worse overtime, at this mileage I don’t think this is right that’s why I’m submitting this complaint.
- NHTSA ID
- 11723988
- Incident
- Mar 1, 2026
Powertrain (other)
Filed Jan 31, 2026
While accelerating from 0 to 40 miles per hour, I experienced a loud bang come from the car. Turns out the splines were stripped between my transmission and transfer case. This was due to the drive shaft spinning while in park mode, as well as an opening between the transmission and transfer case that was spooling. My powertrain system was severely compromised; who knows what could've happened if I had kept driving the car in this condition? Something was waiting to inevitably fail beyond what had happened. Thankfully, this happened on an empty road close to home, but it could have happened anywhere. There were no warnings, lights, or anything, which was the strangest part. Thankfully, this $10k+ bill was covered under the manufacturer's powertrain warranty, but it seems to be a common issue with many newer Acuras. Acura is well aware of the issue (spline failure) and should issue a recall to correct this design flaw within the powertrain.
- NHTSA ID
- 11714721
- Incident
- Dec 23, 2025
EnginePowertrain (other)
Filed Aug 28, 2024
Transmission jerks at low speeds, Car jerks when it is downshifting. The car only has 14,000 miles. Dealership refusing to do any work due to car not having any codes. The car feels like it is having a misfire.
- NHTSA ID
- 11611317
- Incident
- Aug 28, 2024
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.