GM this week is recalling 193,652 SUVs over concerns that they could catch fire. Dealers were notified of the recall on Monday, and GM will be mailing letters to vehicle owners on July 24.

The vehicles involved include the 2006 and 2007 Chevrolet TrailBlazer; 2006 Chevrolet TrailBlazer EXT; 2006 and 2007 GMC Envoy; 2006 GMC Envoy XL; 2006 and 2007 Buick Rainer; 2006 and 2007 Isuzu Ascender, and the 2005, 2006, and 2007 SAAB 9-7x.

The recall involves a defect in the vehicles’ power door lock and power window mechanisms. It is possible that fluid could enter the driver’s door module. This could cause the power door lock and power window switches to break or it could cause overheating, melting door module components and, possibly, starting a fire. Such a fire could occur even when the vehicles are not in operation.

The National Highway Traffic Safety Administration is advising owners of these vehicles to park outside until the defect can be corrected. The free repair will involve applying a protective coating to the vehicles’ driver side door module.

This recall is a follow-up to an August 2012 recall of 278,174 of the same vehicles. At the time, it was thought that only fluid such as melted snow containing road salt could cause fires in the door module. The recall has now been expanded to the entire U.S.

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