I have a 2007 Pontiac Vibe with 100K miles. 2 months ago I had the ECM replaced under recall due to harsh shifting. All was fine for a few weeks after until check engine light came back on. Auto Zone code said torque converter clutch solenoid. I then changed the fluid and it stayed off for awhile but comes on and off periodically. I have no driving symptoms. I was told to watch my driving for 2 weeks after the ECM replacement as the computer was re-remembering my driving habits?

There is a known issue with the 2005-2007 Corolla automatic transmission shift logic. The shift points may seem harsh, and the Check Engine light may be illuminated.

There is a technical service bulletin published (TC015-07) that will address and rectify this condition.

The diagnostic code P2716 will be stored in the computer memory. The procedure involves replacing the Engine Control Module (the computer) with an updated unit.

The repair is covered, under the factory warranty, for 96 months, or 80,000 miles, which ever comes first.

I hope that this helps Corolla owners out.

Regards,

Toyota Ed