stabilitrak

A proprietary name given to General Motor's Electronic Stability Control system, it is designed to prevent slippage of a car's tires when turning or in an emergency situation by pulsing individual brakes on either the inside or outside corner depending on circumstances.

Dude, I almost had a crash the other day!

Are you okay?
Yeah, thankfully my Tahoe's Stabilitrak kept me from crashing headfirst into a tree while I was cornering.