2010 Prius>PCS Button>Gen III

If it is off, "PCS" is displayed on the dash display.

The switch is down there just under the dash, more to the right than is shown in the manual (just to the right of the steering column, I think). It's 2 or 3 inches away from the TPMS switch, which it resembles. Both are kind of hard to find the first time without getting down underneath and peering up at it. After you know where they are, you eventually get to where you can find them by feel.

 

* With your palm UP, run your hand in line with the steering column underneath the Dash, about 6"s or so and a little to the right, you'll feel 2 concave buttons side by side about 2-3"s apart, the one on the Left is the TPMS Initialization and the one on the Right is the PCS button.

And the 2nd poster is correct, if the PCS is OFF, PCS will be illuminated in the MID.

David (aka Blind Guy)

 

Pcs??

 

Pre-Collision System. It's part of the AT (advanced technology) option package available on the V model. It cinches up the seatbelts and pre-conditions and/or hits the brakes if it senses an impending collision.

 

The button is actually located slightly beyond the steering column, UNDER the dash more, it is not front facing where the parking assist button are, but underneath the dash section. You have to sort of lay under the steering column the first time and look up to the underside to see the buttons. I used a 17 LED Flashlight and could see it well with that...Once you know the location you will always remember it going forward.
Bob