A brake traction control system for a vehicle a braking input member, a brake modulator and a controller. The braking input member can be manually actuated and controllable to manipulate the vehicle braking system by controlling the pressure. The brake modulator can be controllable to manipulate the vehicle braking system by controlling the pressure. The controller can be configured to control the brake modulator in an obstacle crawl control mode such that the controller controls the brake modulator to adjust the pressure. The controller can perform processing in the obstacle control mode including: performing a first determination to determine whether the acceleration input member is actuated to control the power source assembly to propel the vehicle; performing a second determination to determine whether a speed of the vehicle satisfies predetermined criteria; and controlling the pressure based on the first determination and the second determination.