Way back in February, the NHTSA began investigating certain full-size trucks and SUVs from General Motors for the possibility of their engines spontaneously combusting, even when the ignition key is in the 'off' position. At that time, the investigation covered some 423,000 vehicles, and GM seemed pretty confident that the issue would not be widespread. Yeah, it appears as if the General was a little off in that assessment. The engine fire issue may now affect about 2.7 million vehicles, including all of the latest Chevrolet, GMC and HUMMER full-size models.

A preliminary examination of the electric systems throughout these vehicles is being conducted at this time. Depending on the results of the NHTSA's 'Engineering Analysis', a recall could follow. So far, there exists 41 reported cases of non-crash-related underhood fires, with 16 of those supposedly with the ignition turned off. Check after the jump for a complete list of all the possibly affected vehicles.

[Source: Consumer Affairs]


• Cadillac Escalade ESV and EXT from the 2007 and 2008 model years,
• Chevrolet Avalanche 1500 from the 2007 and 2008 model years,
• 2007 Chevrolet Avalanche 2500,
• 2007 Chevrolet Silverado,
• Chevrolet Silverado 1500, 2500 and 3500 from the 2007 and 2008 model years,
• Chevrolet Surburban 1500 and 2500 from the 2007 and 2008 model years,
• Chevrolet Tahoe from the 2007 and 2008 models year,
• 2008 GMC Sierra,
• GMC Sierra 1500, 2500 and 3500 from the 2007 and 2008 model years,
• 2007 GMC Sierra Classic,
• 2007 GMC Silverado, GMC Yukon from the 2007 and 2008 model years,
• GMC Yukon XL 1500, XL 2500 from the 2007 and 2008 model years,
• Hummer H2 from the 2006 to 2007 model years,
• 2008 Hummer H2 Utility, and
•Hummer H2 from the 2006 to 2008 model years.