great news, I was searching for the answer for this question too and I believe I have it! The female artist's name is Feist and the title is mushaboom.
Going Whichever Way the Wind Blows Peter Droge
Foghat - Slow Ride
Try http://www.songtitle.info/ It's a site that lists past and current commercial songs and artists.
I didn't find any toyota commercial with a french song, could you be more specific ?
The Toyota song in the company's commercial is Wheel by Fisher.
The song is called "Beautiful Day" by Kathy Fisher. It is on her new album "The Lovely Years" It is available @ Amazon.com :)
Find the name and artist of any current TV commerical song here: http://www.songtitle.info/ ~ T
Swing by Zero7
paquita la del barrio
all about the ride
walking on the sun by ???
Fabienne Delsol