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Rear diff12/28/2023 ![]() The left rear control arm broke for no apparent reason. Party's of the suspension have broken for no apparent reason. Also the differential locks up when you have to hit the brakes and three rear of the car locks up and skids left of center. The vehicle sputters and slows on the open road. ![]() The rpm's on this transmission in this vehicle go up very high but the transmission does not shift into gear. I am worried that it could be dangerous if this condition occurs again at the wrong time. It also goes into neutral when trying to downshift before shifting to a lower gear on down slopes. This transmission has been slow to engage and buck at times since new. Also, when pushed the lights on the buttons would flash yellow and not red. ![]() I also noticed that the buttons for the trans axle were not easy to push inadvertently. Although I did not think I had pressed the 4 wheel low button, I considered that I may have inadvertently, so after leaving the dealership I tested to see if I could create the same condition and I could not. ![]() I took the vehicle to the dealer and they stated there was nothing they noticed or could do. I then restarted the engine and it shut off, so I started it again and placed the transmission into drive and it engaged. As I was almost stopped, I hit the brakes and stopped, then turned the engine off and placed the transmission into park. I placed the the transmission into neutral and then back into drive, but it did not engage. As I coasted to a stop traffic was piling up behind me. There was no dash message nor were there any trans axle lights flashing. As I began to accelerate the transmission bucked several times and then as I moved in front of on coming traffic the drive system disengaged and the engine revved. On the 3rd light I had to turn left and merge into oncoming traffic before entering interstate 40. I stopped at about 3 lights about 1 mile apart. A minute later dash message 4 wheel low was canceled and the 4 wheel low light stopped flashing. While driving 40 -50 mph on highway 89 in flagstaff, az I noticed a dash message stating that the speed was too high to shift into 4 wheel low, about a minute later I noticed a dash message that stated the differential lock could not occur and I noticed that the 4 wheel low button was flashing red. I do have the defective part that was removed from the vehicle after it was repaired. The mechanic who did the repair felt the part should have not failed and the failure was caused by a mechanical defect. The car was well maintained, garage kept and driven interstate and paved city streets. When I looked under the car I saw the rear differential case was cracked all the way around. When I backed into my garage the notification popped back up and I also saw a fresh oil spot on the garage floor. I drove approximately 9 miles on interstate and another city road to home. When I turned the car back on the notification did not appear. ![]() I went into a store for about 20 minutes. I described the situation and when asked if the car was drivable I was told yes. I pulled into a parking lot and called the dealership. There was no noise or indication of an issue until the service notification popped up. While driving on a city street making a left hand turn after slowing down at a traffic light the service 4wd popped up on the dashboard. ![]()
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