In Equinox and Torrent vehicles that weren't equipped with roof air bags or sunroofs, GM will be installing more foam around the windshields to protect against head injuries in an accident. Saturns will get a new timing chain, which could separate during driving if not replaced. Silverados and Sierras will receive new crankshaft position sensors.
The repairs will be free to vehicle owners, of course, and GM has not heard of any accidents or injuries due to any of the recalled items. The recall begins next month, but in the mean time, go here to look for your vehicle in the NHTSA database.
[Source: Morning Call]