There was a thread on this subject back in September. A posting by esmart gave the following link on how to turn on DRL on the new Smarts (I guess in Canada back then). I'd be curious if this works on the US smarts that people are receiving now.
link to how to turn on DRL feature
The basic instructions for turning on DRLs were:
1. Have the car turned off and the key in hand.
2. Pull the left hand (light) stalk towards you and hold it there.
3. Push the LOCK button on the key remote.
4. The car will beep and the DRLs should be activated.
To turn off the feature:
1. Have the car turned off and the key in hand.
2. Pull the left hand (light) stalk towards you and hold it there.
3. Push the UNLOCK button on the key remote.
4. The car will beep and the DRLs should be deactivated.