The heated washer fluid option on some GM vehicles has been unceremoniously dropped by the General after potential short-circuits and fires within the system led to a 950,000-vehicle recall in August. Dealers are expected to have a fix for vehicles already equipped with the system by November, but GM elected not to take any further chances, nixing the option and blaming sole supplier Microheat for a design flaw. Thus far, the heated washer fluid system is suspected in at least three fires. So, who's at risk? Anyone with a heated washer fluid system on a GM product, as Microheat was the only manufacturer used. Specific vehicles include the Hummer H2, Buick Lucerne and Enclave, the Cadillac DTS and Escalade, the GMC Yukon, Sierra and Acadia, the Saturn Outlook and the Chevy Avalanche, Silverado, Tahoe, and Suburban. No word yet on whether other manufacturers will discontinue the system — currently Microheat is only company making washer fluid heating products. They may not have a choice, however, since the GM complaint and resulting expenses are reportedly driving the supplier out of business in short order. [Automotive News; Sub. Req.]