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Well folks, the well-documented transmission problem numerous people have posted about here has happened to our less than 1 year old Subaru Ascent with under 9K miles as well.

The symptoms:
We would start to hear a high-pitched squeel when accelerating lightly traveling at 20mph followed by an abrupt lurch/jerk forward--it almost sounds like a slipping timing belt but it isn't. Trying to accelerating after coasting at 20mph would simply cause the the engine to rev to 4-5k with no impact on the actual acceleration of the vehicle; then the vehicle would jerk forward a bit as the rev's dropped back to 2-3k as if it shifted gears, only to repeat over and over.

This happened only intermittently while my wife was driving this past week and was difficult to reproduce. By the weekend, it was consistently reproducing after about 10 minutes of driving.

Finally, while driving our kids back from a birthday party this evening on the highway, the car started exhibiting the transmission symptoms again. However, after about 10 minutes on the highway--all the dash warning lights starting lighting up: CHECK ENGINE, AT OIL TEMP, RAB OFF, EYESIGHT OFF, BRAKE--everything.
The car was barely driveable (engine was reving like crazy, but vehicle barely moving; as if it was stuck in low gear) and luckily we made it to the exit. We pulled over, turned off the car, and started it back up. The CHECK ENGINE and AT OIL TEMP remained on, but we were able to drive the vehicle a few blocks to our home.

We'll be taking the car to the dealership (assuming it'll make it there) monday when they open.
 

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Well folks, the well-documented transmission problem numerous people have posted about here has happened to our less than 1 year old Subaru Ascent with under 9K miles as well.

The symptoms:
We would start to hear a high-pitched squeel when accelerating lightly traveling at 20mph followed by an abrupt lurch/jerk forward--it almost sounds like a slipping timing belt but it isn't. Trying to accelerating after coasting at 20mph would simply cause the the engine to rev to 4-5k with no impact on the actual acceleration of the vehicle; then the vehicle would jerk forward a bit as the rev's dropped back to 2-3k as if it shifted gears, only to repeat over and over.

This happened only intermittently while my wife was driving this past week and was difficult to reproduce. By the weekend, it was consistently reproducing after about 10 minutes of driving.

Finally, while driving our kids back from a birthday party this evening on the highway, the car started exhibiting the transmission symptoms again. However, after about 10 minutes on the highway--all the dash warning lights starting lighting up: CHECK ENGINE, AT OIL TEMP, RAB OFF, EYESIGHT OFF, BRAKE--everything.
The car was barely driveable (engine was reving like crazy, but vehicle barely moving; as if it was stuck in low gear) and luckily we made it to the exit. We pulled over, turned off the car, and started it back up. The CHECK ENGINE and AT OIL TEMP remained on, but we were able to drive the vehicle a few blocks to our home.

We'll be taking the car to the dealership (assuming it'll make it there) monday when they open.
I suggest you have them them pick it up and tow it to their shop. Sorry to hear you are going through this. At least you know it can and will be fixed. Line up a nice loaner.
 

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Well folks, the well-documented transmission problem numerous people have posted about here has happened to our less than 1 year old Subaru Ascent with under 9K miles as well.

The symptoms:
We would start to hear a high-pitched squeel when accelerating lightly traveling at 20mph followed by an abrupt lurch/jerk forward--it almost sounds like a slipping timing belt but it isn't. Trying to accelerating after coasting at 20mph would simply cause the the engine to rev to 4-5k with no impact on the actual acceleration of the vehicle; then the vehicle would jerk forward a bit as the rev's dropped back to 2-3k as if it shifted gears, only to repeat over and over.

This happened only intermittently while my wife was driving this past week and was difficult to reproduce. By the weekend, it was consistently reproducing after about 10 minutes of driving.

Finally, while driving our kids back from a birthday party this evening on the highway, the car started exhibiting the transmission symptoms again. However, after about 10 minutes on the highway--all the dash warning lights starting lighting up: CHECK ENGINE, AT OIL TEMP, RAB OFF, EYESIGHT OFF, BRAKE--everything.
The car was barely driveable (engine was reving like crazy, but vehicle barely moving; as if it was stuck in low gear) and luckily we made it to the exit. We pulled over, turned off the car, and started it back up. The CHECK ENGINE and AT OIL TEMP remained on, but we were able to drive the vehicle a few blocks to our home.

We'll be taking the car to the dealership (assuming it'll make it there) monday when they open.
We had the same thing with our ascent. About 14k on it every warning light you can think of popped on and transmission started shifting crazy then started squealing. Took it to the dealer they are currently replacing the transmission.
 

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I should add that ours was indeed a Aug - Sept 2018 build.
I empathize with you. Hope your dealer get a new transmission for your car quickly. Best of luck from here on in.
 
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