Accelaration

[Allanc]

Today on my way home my Toyota Yaris went into full accelaration completely on its own and almost caused me an accident.I pulled to the shoulder shifted to neutral which then redlined the car then I turned it off .when I started the car again it was completely back to Normal...Has anyone heard of this or had This Happen to them

[campbeam]

Most certainly have heard of this issue which was reported in the USA and presumably only applied to the US models particularly the floor mats.

https://mashable.com/2014/03/19/toyota-lied-aceleration-recall/

After that brush with eternity, I would be troubleshooting the sticky pedal issue. No harm in giving the accelerator pedal pivot points a good spray of silicone spray.

Definitely check any floor mats and make certain that there is that clearance with the accelator pedal.

Something else is to check the connection of the accelerator position sensor, possibly disconnect and spray with electrical contact cleaner.

Possibly unrelated but I would also be giving the throttle body and the idle control valve a very good clean. More of a maintenance issue but pays to eliminate it as a contributing factor.