NHTSA recall 14V460000

What's wrong: The vehicles may contain brake fluid which does not protect against corrosion of the valves inside the anti-lock brake system (ABS) module, affecting the closing motion of the valves.

Why it matters: If the ABS valve corrodes it may result in longer brake pedal travel or reduced performance, increasing the risk of a vehicle crash.

The fix: Gm will notify owners, and dealers will replace the ABS module, free of charge, in any vehicle that did not have its module replaced under a previous customer satisfaction campaign. The recall began in late September 2014.