Transmission down shift clunk, FIXED

[FJMainiac]

In a previous post, I described a harsh downshift clunk when slowly coming to a stop. Most noticeable in stop and go traffic. Sometimes felt like two bumps, one around 3-5 mph, and the second just when I come to a full stop. I was not sure if this normal for that type of transmission or if something else was wrong.

I was at the dealership for 10k service, and went for test drive with tech to demonstrate the issue. The tech said no mechanical issue, no problem codes, and no software update (yet) but cleared the transmission memory.

Now the shifting is absolutely smooth, no harsh downshift at all.

While I was there I also had the break squeal repair (known issue).

 

[Michael T]

In a previous post, I described a harsh downshift clunk when slowly coming to a stop. Most noticeable in stop and go traffic. Sometimes felt like two bumps, one around 3-5 mph, and the second just when I come to a full stop. I was not sure if this normal for that type of transmission or if something else was wrong.

I was at the dealership for 10k service, and went for test drive with tech to demonstrate the issue. The tech said no mechanical issue, no problem codes, and no software update (yet) but cleared the transmission memory.

Now the shifting is absolutely smooth, no harsh downshift at all.

While I was there I also had the break squeal repair (known issue).

So what was done to stop the harsh trans shifts, as mine does this as well, and dealership acknowledged it when they fixed my brake squeal?

 

[FJMainiac]

The description on the paperwork states "Technician verified harsh downshift into first gear when coming to a slow stop. Technician cleared transmission memory."

 

[Michael T]

The description on the paperwork states "Technician verified harsh downshift into first gear when coming to a slow stop. Technician cleared transmission memory."

So they reset the transmission to relearn driving habits?

 

[FJMainiac]

Correct, the tech mentioned something about the software learning driving habits and reset apparently "unlearned" whatever was causing the hard downshift to 1st.

 

[Michael T]

Correct, the tech mentioned something about the software learning driving habits and reset apparently "unlearned" whatever was causing the hard downshift to 1st.

Will have to ask for this at 10k mile service