We began getting that message last night. It is a 2001 v70 w/145K miles. It was raining. It drove and stopped fine. Today, the message came back and it is bucking a bit like maybe it has a misfire. I will try to get the codes read today, but thought I would post here also.
Thanks.

 

I had a message the same after brake work and low fluid.

 

Turned out to be a bad coil pack