If one or more of the tires receiving power starts to spin, the traction control system will be activated by the computer.
Otherwise, the system does nothing and has no effect on gas mileage.
On the rare occasions when traction control is active, it still wouldn’t affect gas mileage to any degree.
Does turning off traction control give you better gas mileage?
Turning off traction control has no effect on fuel mileage.
Why would you want to turn off traction control?
In turn, the traction control system will reduce engine power and apply the brakes to specific wheels that may be slipping. The only time it may be necessary to turn the TCS off is when/if the vehicle is stuck in mud, snow or ice.
Should I turn off traction control in snow?
If you are stuck in the snow, wheelspin can sometimes help you get unstuck. Traction control will prevent wheelspin, so if you turn it off, motion might return to your car. If you are stuck in truly deep snow and the car isn’t moving at all, spinning the tires is going to make the problem worse.
Does sport mode turn off traction control?
Sport Mode reduces Traction Control by 80% if I remember correctly; it does not turn it off completely. To turn off Traction Control completely, you have to be at a standstill and hold in the ESC button for a (far too long) 10-15 seconds.