2022 Tesla Model Y Powertrain & Transmission Problems

Two days ago, replaced two rear tires at the American Tire Depot and ask them to alignment service. After tire replacement, mechanic showed me the front two control leg arms were cracked and seemed it need to be replaced. That looks pretty bad and never had any issue from other vehicle. Contact to Tesla and was told that out of warrant (50k, current mileage 54k) - i found out there are many accident because this .

Squeaking of lower control arms arms around 70k miles. Upper & lower require replacement, per Tesla Service Center

This is not a defect but rather something I consider could be dangerous. On slippery conditions example, during heavy snow fall, or when there is slush or if there is an icy surface, I find that the AWD system in my vehicle which is all controlled via software that the manufacturer wrote (because it is a dual electric motor setup, and there is no mechanical connection between the front and rear axle), tends to either send too much power or tried to regen too much to/from the front motor when the steering wheel is turned (something they can detect), and it tends to cause unexpected understeering which if you are not accustomed either to driving an electric car or Tesla’s AWD system could end up in a potential accident. I am writing to you because I know that my voice will go unheard since I do not have access to any of their feedback challenge. Again I do not consider that a potential dange, nothing imminent or defective with the vehicle. The fix in my opinion is a software update that could impliment road surface detection via their vision, in combination the steering angle sensor wheel slippage detection, to detect that the trajectory of the vehicle is not going as desired and mitigate that through multiple techniques of traction control, I know that with a RWD Tesla they do use the front brakes in certain conditions to force the wheels to dig in the snow and try to find traction from experience even though there is no front motor.

The Model Y abruptly stopped in traffic creating a collision hazard and impact of the front of the vehicle. The vehicle was completely disabled and had to be towed. Upon inspectiong by the Tesla service, the Power Conversion System had failed for the rear motor system which is part# ASSEMBLY - FRONT VEHICLE CONTROLLER GENERATION 3.1(1583991-10-D). The attached document has links to other owners with the same complaint. Also attached is the Tesla repair estimate which as can be seen has nothing to do with a rear end collision as it is replacing the front power conversion system.

Vehicle has less than 5,000 miles. On three separate dates, a sudden warning appears "Rear Motor Disabled; Avoid Steep Hills; If problem persists contact Service. There is an image of a turtle icon, and vehicle speed is limited. This happens with a gradual reduction, first to around 65, in a few minutes it drops to 37 mph. I had to drive several miles on a limited access turnpike with no exits at 37 mph, including crossing some bridges with no shoulder lane. I was very concerned about being rear ended in this situation. Information below is on the most recent incident which happened today.

The vehicle started shaking and stuff wrong from the rear wheels and was told to pull over safely. The error codes Dl_a063 and Dl_a139 popped up and it seems there is a rear drive unit failure.

There is no sound warning to switch gears. For example from forward to reverse. I was trying to go forward and I was actually in reverse. The gear change is on the steering stalk and doesn’t make any warning sound when switching. As the drivers eyes are looking forward, and not looking at the screen feedback, it makes it difficult to remember which gear you are in. Forward or reverse. I assumed I was going to move forward, but the car was actually in reverse. I hit the car that was parked behind me and did damage to my car. I’m feel that most cars makes a physical click sound with the gears shifting as well as a small jump in movement to remind the driver they have switched directions.

On January 19th, around 9:35-9:40am, while driving on Bollinger Canyon Road in San Ramon, the car jerked as if someone rear-ended it and then stopped abruptly in the middle of a busy road. The information screen displayed various error messages regarding battery and drive system. The stop was abrupt and we could have been seriously injured in busy traffic. This was a scary experience. The car had 260 miles range in the battery and no prior warnings/ messages indicating any problem. We called 911 and Tesla roadside assistance for help. San Ramon PD showed up and blocked the lane to avoid someone hitting our car. They had the car towed to the nearest Tesla Service Center in Dublin, CA. While waiting for the tow truck, we attempted to restart the car and computer system two times but the car did not go into "Drive" position to be moved. The service center is diagnosing the problem and have informed us that it could be a problem with the motor or drive terrain or inverter of the car. All these are major and crucial components on the car for safe and normal operation. Failure of any of these is catastrophic and can be fatal on freeway speeds or local roads if someone is following too closely and the car stops abruptly. We usually have kids in the car and this is a scary situation to imagine. This needs to be investigated in more detail by someone to find out how many card suffer this fate and how many accidents/ fatalities have been caused by something like this.