Simply put, gear changes are delayed, and you have to either slightly release the gas pedal or depress it further (for it to speed up) to shift. As an example, you're doing 80 km/h (50 MPH), and should be in overdrive (4th gear). But you're in 3rd with the RPMs at 3,000 km. If you very slightly take your foot off the gas, the transmission shifts into 4th and the RPMs drop to 2,000. Alternatively, if you put your foot down further, the engine will rev higher as the vehicle accelerates and then you're in 4th gear. The shifts are also a bit hard and sudden, almost like a neutral drop. I donÆt know what the cause is, although .