Hello. It kind of sounds like a shift solenoid in or on the transmission is failing. Then the computer detects the issue and puts the car into "limp mode." When a car is in limp mode, the computer puts it in 1st or 2nd gear and doesn't allow it to shift. This allows you to drive the car to a shop without doing any more damage to it. I would suggest taking to a shop (at low speeds) and having them connect a diagnostic scanner to it. They should be able to pull a trouble code from the computer and investigate from there.
Sunday, July 12th, 2020 AT 1:11 PM