i don't think so.
DSC = DYNAMIC STABILITY CONTROL Here's how it works: DSC constantly compares vehicle speed, wheel speed, steering angle, and yaw rate with a benchmark of plausible and optimum driving conditions' data. In a fraction of a second, DSC recognizes a threatening instability and a danger of skidding.
*NOTE THE PHRASE: "optimum driving condition's"...
Because DSC causes braking action in resolve doesn't mean that the brakes are at fault.
To address your issue: by changing tires(maybe aligning) to that different from specs, you have effectively altered the geometry of the suspension and steering to a point where the ECU no longer recognizes the parameters that it is programmed for. Thus, your DSC light kicks ON.
Your remedy: follow nick 318's advise, turn it OFF; have your tires re-aligned and hope that it will fall into the parameters that ur ECU can read as valid; OR, have your ECU re-mapped.
OR, go back to spec tires &/or alignment ;-)