I first saw this in the Canada Extra section (not listed in the recalls in the "American" part) of Consumer Reports about 2 weeks ago. Surprisingly, I just got a letter from Volvo Canada asking me to bring my car in for headlight switch inspection.
"Volvo Cars of Canada Ltd. (Volvo) has decided that a defect related to motor vehicle safety exists in the headlight switch of certain model year 1998-2000 S70, V70, C70 and V70XC vehicles. In some cases, the connections in the headlight switch may deteriorate. If this occurs the headlights will not function and a loss of visibility may occur, increasing the risk of a crash."
There was a recall on these switches already - back in 1998 when I first got my V70. However then I was told that the recall did not apply to my car. The funny thing is the headlight switch doesn't really do anything, because of our daytime running light laws here in Canada. Most of the switches are just left in the full headlight position, and they're still falling apart! Now 6 years later it's finally obvious to Volvo, that even their "improved" switch was no good. (In the off or "0" position, the dash lights and high beams don't work, but headlights, corner lights and taillights are all on. In the park position, all lights are on, but the high beams don't work and the parking lights stay on when the ignition is turned off.)
P.S. If you've already paid to have this fixed at the bottom of the letter it says, "If you previously paid to have this corrective action performed, Volvo will honor (American spelling!) your receipt with a refund. Please contact your authorized Volvo retailer for details."