NHTSA recall 14V571000

What's wrong: On the affected vehicles, the jam nut in the rear suspension toe adjuster link may not be torqued to the proper specification. A loose toe adjuster link can cause the vehicle to sway or wander at highway speeds. A loose toe adjuster link may lead to thread damage and eventual failure. Failure of the toe adjuster link will cause an abrupt change in the vehicle's alignment.

Why it matters: Failure of the toe adjuster link could cause a loss of vehicle control, increasing the risk of a crash.

The fix: Gm will notify owners, and dealers will inspect the torque of the left and right rear toe link adjuster lock nuts, and replace the parts if there is evidence of damage or a loose link, free of charge. The the recall began November 11, 2014.