Toyota vehicles have been implemented with a new brake override system feature to allow the vehicle to cut power and enhance braking capability. This system will engage when certain conditions have been met with regards to the vehicle speed, throttle opening and brake pedal pressure applied.
In order to engage the system the accelerator must be pressed down and the driver must use their left foot to depress the brake pedal without lifting up on the gas pedal. When the condition engages the vehicles engine speed will be reduced to about half while the operator continues to press on the brake.
The brake system override fix helps Toyota owners feel safe that their vehicles will not have the ability to overpower the braking system under any conditions because this will disable the engine from making enough power.
Once the driver has adequately stopped or slowed down sufficiently, they’ll be able to resume driving as normal.
There doesn’t seem to be any indication from Toyota yet as to whether this override system will initiate a fault or trigger a dashboard warning indicator that the system had be engaged or is currently engaged.
For diagrams and drawings to illustrate how the brake system override software works with the vehicle, the Brake System Override pdf provides a good overview.
For more on this checkout the Toyota Newsroom article:
http://pressroom.toyota.com/pr/tms/toyota-extends-brake-override-154194.aspx
