Transfer Case problems of the 2022 Acura MDX

Splines between transmission and transfer case stripped. Awd does not work anymore. No codes on the dash.

My vehicle 2022 Acura type s has a transmission system problem, blind spot info problem, and a all wheel drive problem that only my front whee;s may be powered. It looks like the transfer case maybe failing. My vehicle only has 25,000 miles on it and is about to be out of warranty.

I own a 2022 Acura Mdx sh-awd with approximately 85,000 miles. The issue began suddenly while driving around 5 mph when two loud bangs were heard from the rear drivetrain/transfer case area. After the initial incident, the vehicle was driven home, and the problem became consistently noticeable during any acceleration from a stop or low speed. The drivetrain would clunk/slip during acceleration and exhibited abnormal engagement behavior. Due to concern about causing further drivetrain damage or a potential safety issue, the vehicle was subsequently towed to an Acura dealer for diagnosis. The Acura dealer confirmed that both the transfer case and transmission require replacement due to “worn teeth on splines. ” the repair estimate specifically states: “replace transfer case and transmission due to worn teeth on splines. ” estimated repair cost is approximately $11,400. I have photographs and repair documentation related to the failure. This failure created a potential safety concern because the drivetrain was no longer operating normally and produced loud clunking/slipping during acceleration from stops and low speeds. A drivetrain or power transfer failure could increase the risk of loss of propulsion or inability to accelerate normally into traffic. The issue was reproduced and confirmed by the Acura dealer. The vehicle has been regularly maintained, including drivetrain fluid services, through Acura/Honda service facilities. There were no warning lights, dashboard messages, or electronic indications before or after the failure event. The only indication was the loud banging noise from the drivetrain/transfer case area and the resulting abnormal drivetrain behavior during acceleration. The service manager also indicated they had seen several similar cases involving this issue.

The contact owns a 2022 Acura Mdx. The contact stated that while driving at 30 mph, there was an abnormal vibration coming from the front passenger’s side of the vehicle. There was no warning light illuminated. The abnormal vibration persisted, and there was a grinding sound coming from the vehicle. The vehicle was taken to an independent mechanic to be diagnosed, and it was determined that the power transfer case spline had failed and needed to be replaced. The dealer informed the contact that the VIN was not under recall, and the vehicle was not under warranty. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 97,000.